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Reference book Residential buildings
Contents
Residential buildings
03 Introducción 03 Presentation
2
04 Residential
complexes and
13 Landmark
building work
public works and rehabilitation
19 Innovation and
sustainability
18 Sostenibilidad
2020 Edition
Presentation
OHL has demonstrated its experience in the field of residential construction throughout over 100 years of history with
projects ranging from unique single-family homes, to buildings and developments equipped with communal services that
seek to integrate homes into the environment. OHL’s portfolio boasts over 8.0 million square metres built, distributed
Residential buildings
across more than 60,000 homes. It is present in countries ranging from Spain, to the USA, the Czech Republic and Ireland,
to name a few. Residential works include private projects and public-private partnerships. Prominent projects include the
Algerian Embassy in Madrid, and the Los Granados development complex in Malaga with around 1,000 homes. There is
also the 258-unit City Palm residential development in the USA, and a project in Olomouc, the Czech Republic, known as
the Cascaded Pyramid.
The company has also carried out public initiatives that include projects for subsidized housing, social housing for tem-
porary rental, homes for the elderly, and supervised apartments. Of particular note is the development, under a 25-year
concession, of 465 sustainable social housing units in Ireland, the Social Housing Bundle 2, as well as 47 social housing
units and 20 temporary housing units located in Barcelona, Spain.
Building rehabilitation
OHL’s portfolio of projects in the residential sector includes building rehabilitation and restoration works. In most cases,
these types of works are carried out on protected properties of significant historical and heritage value. Original features
of these buildings are respected and care is taken to adapt them to contemporary times. One prime example is the exclu- 3
sive Four Seasons Private Residences located in Centro Canalejas, Madrid. The architectural complex is formed of seven
buildings, some of which are over a hundred years old. The unique and exclusive space has 22 homes and spaces des-
tined for residential, hotel, and commercial use. The homes are equipped with the latest technology in home automation,
will be serviced by the Four Seasons hotel chain, and are located on the central floors of the complex with access to the
spa and private car park.
Innovation and sustainability at the service of well-being
Innovation and sustainability go hand in hand with the residential building sector. It is common practice in this type of
project to use home or building automation systems; these systems allow different energy sources to be optimised, and
passive devices can be implemented that capture solar energy. Measures responding to the nZEB (Nearly Zero Energy
Buildings) approach are incorporated.
State-of-the-art methodologies are also used in construction and renovation work to ensure construction times are opti-
mised and excellent results are achieved. This is the case with BIM (Building Information Modelling) and the MES (Monitor-
ing of Landmark Structures) platform.
OHL also drives innovation by developing and applying proprietary solutions. These solutions include creating new eco-
logical building materials based on geopolymers obtained from microsilica; implementing a new construction process
for post-tensioned concrete diaphragm walls with displacement control; creating a new column-pile system for high-per-
formance slab supports; process efficiency for vertical excavations; and high-performance processes for basements in
urban areas. These initiatives also include projects promoted by the European Commission such as the evaluation and
integration of technologies to enhance energy efficiency during public building retrofitting processes (RESSEEPE) and
the construction of process control modules for the construction environment (Built2Spec).
465 SOCIAL HOUSING BUNDLE 2. CORK, KILDARE, 47 SOCIAL HOUSING UNITS, 20 TEMPORARY
Residential complexes and public works
CLARE, GALWAY, WATERFORD, AND ROSCOMMON. ACCOMMODATION UNITS AND PARKING ON
IRELAND CALLE TANGIER. BARCELONA. SPAIN
4 Client: National Development Finance Agency (NDFA) and Client: Municipal Housing Board
Cork County Council Budget: 4.7 million euros
Budget: 130.0 million euros Completion Date: 2017
Completion Date: Under construction
This residential complex has a built area of 5,570 m2 distributed
The projects falls under the government’s public-private part- between two buildings and is characterised by combining two
nership (PPP) programme to build 465 sustainable social hous- usually independent programmes: social rental housing and tem-
ing units –110 apartments and 355 single-family houses– in the porary accommodation for people at risk of social exclusion.
Irish counties of Clare, Cork, Galway, Kildare, Roscommon, and
Waterford. The project is carried out in a Joint Venture, and in- The buildings have eight floors above ground level each, plus
cludes the provision of management and maintenance services an underground level, and are connected by a footbridge. The
after the residential units are built for a period of 25 years. ground floor and interior road separating the buildings are in-
tended for communal use.
The initiative is part of the second bundle of a 1,500 social hous-
ing unit programme which includes a car park, spaces designed Both blocks have the same design and the same construction ma-
to house the building facilities, communal spaces, and play terials have been used. They also incorporate a series of meas-
areas. BIM methodology was applied during construction, as ures to improve energy efficiency and energy savings through
well as measures responding to the nZEB (Nearly Zero Energy ventilation and solar capture. There are winter gardens that cover
Buildings) approach. 23% of the heating demand, while in summer, the night-time
cross ventilation through the winter garden and daytime solar
This is the first public-private partnership project undertaken by protection using blinds cover 43% of the cooling demand. This
OHL in the residential construction field. is complemented by high-efficiency systems such as aerothermal
energy and a dual-flow ventilation heat recovery system.
This project has been awarded the AVS 2018 prize for the best
new building, awarded by the Institut Municipal de l’Habilitate i
Rehabilitació de Barcelona.
108 HOMES AND GARAGES IN EL PINAR DEL MAR. SOUTH BLOCK. VISTAHERMOSA-GOTETA. ALICANTE. SPAIN
Residential complexes and public works
Client: Espacio Arpada Desarrollos, S.L. Budget: 13.5 million euros
Completion Date: 2015 (Phase 1) 2017 (Phase 2)
Its spectacular views and proximity to the sea, only 500 metres away, make this
13,841 m2 residential complex a unique space. It has also been built in two phases,
the first of which consists of a building with 36 homes and eight floors (including one
basement level); while the second is made up of two blocks which also have eight
floors (including one basement level) and are distributed into 72 units. The complex
is set on a rectangular plot with a difference in level of up to 12 metres which has in-
fluenced the building volumes. They are arranged in a staggered way, the highest of
which belongs to the first phase. Most of the 108 units have three and four bedrooms,
although there are also a small number of two-bedroom homes. The buildings have a
basement with parking and common spaces including a social club, a gym, swimming
pool with toilets, changing rooms, a first-aid room, sports areas, garden spaces and
children’s play areas equipped with furniture and rubber flooring.
52 RESIDENTIAL HOMES PERI P.1 IGLESIA DEL CARMEN. MALAGA. SPAIN
Client: Gestión de Inmuebles Adquiridos, S.L. Budget: 8.4 million euros
Completion Date: 2015
First phase of a 10,028 m2 residential complex, consisting of a nine-storey building
with three underground floors. It has 52 apartments and penthouses, with the corre- 5
sponding storage rooms, four commercial premises located on the ground floor, and
121 parking spaces on the underground levels. The communal areas have a swimming
pool, concierge, and a common storeroom. The residential building’s foundations
have been laid in the opposite direction to regular construction procedure, by using
column-piles as support, cut-and-cover excavation, and forming a 1.50-metre-thick
reinforced concrete foundation slab. Diaphragm walls have also been built on special
foundations excavated to a depth of 25 metres with bentonite sludge.
80 PUBLIC HOUSING UNITS, ANNEXES AND COMMERCIALPREMISES. CARRETERA ZORROZA-CASTREJANA. BILBAO. SPAIN
Client: Bilboko Udal Etxebizitzak TEA Budget: 7.0 million euros
Completion Date: 2014
11,001.5 m2 social housing building with seven floors and 80 homes. In addition to these
levels, there is a semi-basement floor that was created by minimising excavation and
includes three parking levels, as well as an accessible ground floor where commercial
premises and the building entrance are located. The building has a unique polyhedral
design, with a streamlined architectural finish from the basement up to the building roof.
The property is characterised by its trapezoidal geometry, which uses moulded and
coloured architectural panels for the exterior façades. The design is completed with pro-
truding frames and well-finished seals between panels. Lacquered metal panels are used
for the courtyard façade. Aluminium frames were used for the windows, built as single
pieces in the workshop that are designed to adapt to the different building orientations to
create shade and serve as an acoustic screen. One particular feature to note is that 86%
of the homes have a dual orientation, which facilitates cross ventilation in summer and
thermal capture in winter, providing energy savings throughout the life of the building.
160 SOCIAL HOUSES, COMMERCIAL PREMISES 184 ARCOSUR HOMES. ZARAGOZA.
Residential complexes and public works
AND 217 PARKING SPACES ON AVENIDA DEL SPAIN
ESTATUT DE CATALUÑA, 57. BARCELONA. SPAIN
6 Client: Municipal Housing Board Client: Saraqusta Social Housing Cooperative
Budget: 15.7 million euros Budget: 12.0 million euros
Completion Date: 2013 Completion Date: 2013
23,000 m2 residential complex consisting of two nine-storey This brick building has a built area of 28,100 m2, distributed over
buildings, each with two basement levels. It has 160 one-, nine floors above ground and three underground. There are a to-
two- and three-bedroom homes which are designed to have tal of 184 units.
cross-ventilation, balconies, and mobile lattice-work panels to
provide solar protection on the south façade. The complex has The structure is made out of reinforced concrete with ribbed
a car park for up to 127 vehicles. slabs built in-situ, interspersed with aerolite light-weight hollow
blocks and insulating panels under girders. The courtyard façade
The blocks are built on sloping terrain which gives the impres- cladding consists of a single-layer of mortar, gero ceramic hollow
sion that one has a greater height than the other, with an ap- bricks, and a layer of water-repellent adhesive mortar. There are
parent difference of around two storeys. A common space is two types of roofs: non-traffic bearing flat roofs with gravel pro-
created between the two blocks with a network of walkways tection, and accessible paved roofs.
that can accessed from the building lobbies and from the com-
mercial premises on the ground floor. The hot water production system for heating and sanitary water
is done with central boilers, although it should be noted that the
This residential complex has been awarded the AVS architec- sanitary hot water production system is supported by a solar pan-
ture prize in the best new building category, awarded by the el system.
Institut Municipal de l’Habilitate i Rehabilitació de Barcelona.
132 HOMES, COMMERCIAL PREMISES, 143 HOMES, VALLE ROMANO DEVELOPMENT.
Residential complexes and public works
AND 131 PARKING SPACES ON AVENIDA SECTOR R3-3. PHASE II ESTEPONA. SPAIN
DEL ESTATUT DE CATALUÑA, 1. BARCELONA. SPAIN
Client: Municipal Housing Board Client: Compañía Promotora y de Comercio del Estrecho
7
Budget: 14.9 million euros Budget: 24.8 million euros
Completion Date: 2012 Completion Date: 2011
The residential building has 132 social housing units and a built This residential development has a built surface of 28,640 m2, dis-
area of over 19,000 m2. The units are distributed over 11 floors tributed over ten blocks with 24 separate entrances. Each block
with 7 stairwell cores, and there are a further 3 underground has four storeys and an additional underground level. There are
floors. There are spaces for commercial use and a parking area 143 homes, storage rooms, and commercial premises in this space.
for up to 131 vehicles. The units are classified into apartments, duplexes, and penthous-
es, all of them equipped with marble floors, tiled bathrooms and
The building has a reinforced concrete structure, solid slabs for lacquered MDF interior carpentry. The exterior carpentry is made
underground floors, and waffle slabs for above ground floors. of lacquered aluminium with climalite glass. All units also have air
The main façade has been built using gero bricks clad with EPS conditioning, gas boilers, and solar energy for hot water.
panels and coating in metallic paint. The back façade and court-
yards are been finished with 11 cm white exposed bricks. The residential complex has common spaces, green areas, swim-
ming pools, toilets, and changing rooms. There are also garages
and a mechanical room located on the ground floor.
The building foundations consist of CPI-8 piles, pile caps and brac-
ing beams; and its structure combines waffle slabs and concrete
columns.
288 PUBLIC HOUSING UNITS, ANNEXES, COMMERCIAL PREMISES AND LANDSCAPING. SECTOR 6.
Residential complexes and public works
ZABALGANA DISTRICT. GASTEIZ. SPAIN
Client: VISESA - Vivienda y Suelo de Euskadi, S. A.
Budget: 26.9 million euros
Completion Date: 2010
52.232 m2 residential complex formed by two independent buildings. The buildings have
a linear design, with east-west dual orientation and overlooking a square. The 288 hous-
ing units are distributed over seven and eight floors, which extends to nine floors at the
ends of the building. There are also two floors below ground level, where the garage and
storage rooms are located. It also has a ground floor with commercial premises.
Each building has common garden areas, pedestrian areas, and a children’s play
area. The façades are precast white concrete panels, and the exterior carpentry is
made of lacquered aluminium with thermal bridge breaks and double glazing with
an air chamber.
On a construction level, the exterior façade made of precast white concrete and al-
uminium panels, as well as the insulated sprayed polyurethane façade should be
highlighted. The exterior carpentry is done in grey lacquered aluminium with thermal
bridge breaks and double glazing. Safety glass is used for terrace parapets.
8 258 HOMES, STORAGE ROOMS, AND GARAGE SPACES IN SANTA ADELA. GRANADA. SPAIN
Cliente: Municipal Housing Company (EMUVYSSA)
Budget: 18.1 million euros
Completion Date: 2010
The 21,000 m2 development houses three multi-family residential complexes with
four buildings in total, each with eight floors and a total of 258 homes. Three of the
blocks have a shared car park distributed over two underground levels with 175 spaces,
and a space with 52 storage rooms. The fourth building, which has the largest num-
ber of homes (106 units), also has two underground parking levels with 87 parking
spaces and 36 storage rooms.
The buildings have reinforced concrete slabs and concrete wall foundations.
Alternating waffle slabs with temporary formwork and concrete slab ramps are used
for the structure. The roofs are mostly traffic-bearing and designed to be used to
hang out clothes to dry.
The structure has reinforced concrete portal frames and waffle slabs. The building
envelope façade has cavity walls clad in a single layer of textured mortar and ba-
kelite wood carpentry. Sprayed polyurethane or hydrofuged glass fibre is used for
thermal-acoustic insulation which is bonded with thermosetting resins and finished
with aluminium foil.
This residential development is part of a town-planning operation to rehouse residents
from pre-existing buildings that have been demolished to build the new blocks. The new
units have a surface area similar to the original, but the living conditions are improved.
THE STRAND AT CLEARWATER CENTRE. CLEARWATER, FLORIDA. EEUU
Residential complexes and public works
Client: Clearwater Espacio Development, LLC
Budget: 27.7 million euros (40 million USD)
Completion Date: 2009
An office building on the Gulf Coast of Florida has been converted into a 16-story
residential building with more than 47,800 m2 of built surface, distributed into a
total of 60 apartments and 11 penthouses. There are 17 two-story homes and an
additional ground floor for commercial and office use in a building annex.
The residential building has an elevated two-story car park with a built area of
around 29,000 m2.
CITY PALMS. WEST PALM BEACH, FLORIDA. EEUU
Client: H&H Development
Budget: 50.9 million euros (70,9 million USD)
Completion Date: 2008
This mixed-use residential and commercial complex is divided into ten floors with
288 homes of various types, equipped with resistant laminated glass windows. The
building also has security and fire-fighting systems, as well as four high-speed lifts. 9
Common spaces worth highlighting include a pavilion located on the sixth floor
designed in a Key West style which integrates a dome into the open-air space. The
building has a gym and a car park distributed over five floors.
248 HOMES, GARAGES AND COMMERCIAL PREMISES IN HACIENDA DEL MAR. DEVELOPMENTS I AND II.
ALICANTE. SPAIN
Client: Inmobiliaria Espacio
Budget: 27.3 million euros
Completion Date: 2008
A residential complex of 52,469.00 m2, located 700 m from San Juan beach and di-
vided into two developments. The first consists of two ten-storey buildings above
ground level and an underground car park. One building has 50 units and the other
has 68, with a total of 118 homes. The second development has three ten-storey
blocks and 130 homes in total, distributed in 50, 32, and 48 units. The ground floors
are for commercial use and the underground floor is for parking. The common areas
are equipped with swimming pools, garden areas, sports courts, and a children’s
playground with swings and rubber flooring.
On a technical level, its foundations and structure are made of in-situ concrete with a
brickwork façade enclosure. The roofs are flat, non-traffic bearing, and finished with
gravel on 6 cm of polystyrene thermal insulation.
58 HOMES, GARAGES AND STORAGE ROOMS. PINNACLE PLACE. MIAMI. FLORIDA. EEUU
Residential complexes and public works
ANOETA, GIPUZKOA. SPAIN
10 Client: Bildo 5 Kooperatiba Client: Pinnacle Housing Group
Budget: 5.2 million euros Budget: 11.5 million euros (16.9 million USD)
Completion date: 2008 Completion date: 2007
Complex consisting of three blocks with a built surface of 8,026 m2, Residential building distributed over ten floors with 137 homes,
distributed over 58 homes of between 70 and 80 m2 each. There is plus a parking area with seven more levels and the capacity for
also a semi-basement level where the garages and storage rooms 233 spaces.
associated with the residential units are located. The building pro-
file is formed of a semi-basement, ground floor level, three upper The complex has two lifts and common areas such as a children’s
floors, and an attic area under the flat roof which has been de- playground, multi-purpose rooms, gym, storage rooms, admin-
signed for passive solar heating to provide more efficient building istrative offices, and spaces designed to house the facilities that
energy use. guarantee the correct operation of the building. It should be noted
that this initiative is aimed at low-income families, within the frame-
The three blocks have identical designs, and were built to a simi- work of a state housing programme.
lar schedule: there is a vertical communications shaft, and lift and
stairwell core which serve the four homes located on each floor.
All residences are equipped with underfloor heating, a pressed
wood fibre insulating façade, and floors finished in stoneware
and wood parquet.
The basement floors house the air renewal installations, electricity,
water and gas meters, and the facilities required to store hot water
from the solar thermal system installed on the roof.256 HOUSING UNITS (PHASE I) AND 247 HOUSING 942 LUXURY HOMES IN LOS GRANADOS.
Complejos residenciales y obra pública
UNITS (PHASE II) NOVOSUR. GRANADA. SPAIN COSTA DEL SOL. SPAIN
Client: FRAI Desarrollos Inmobiliarios Client: Inmobiliaria Espacio
11
Budget: 33.9 million euros (Phase I: 18.7 and Budget: 90.5 million euros
Phase II: 15.2 million euros) Completion date: 2006
Completion date: 2005 (Phase I) and 2006 (Phase II)
Nearly a thousand luxury homes make up this complex of de-
Residential complex distributed in two phases, each one of them velopments located on the Costa del Sol, distributed among
formed by eight buildings with five floors and a sixth one under- a dozen residential areas called Los Granados Duquesa, Los
ground used for the car park. Granados de Cabopino, Los Granados de Puerto Banús, Los
Granados Golf and Los Granados del Mar. The residential units
The first phase has a built area of 32,000 m2 distributed over have two, three and four bedrooms, and the penthouses have a
256 homes. The second phase has a built area of 30,875 m2 and terrace with a solarium pool and jacuzzi.
a total of 247 residential units.
All the homes have a built-in home automation system, under-
The common spaces include two swimming pools (one for each floor heating, air conditioning, and security measures. In addi-
phase), playgrounds, and areas equipped with urban furniture, tion to the social club, the common areas include garden areas
such as benches and fountains. from which the homes can be accessed, communal swimming
pools, gym, changing rooms with sauna, Turkish bath, massage
At the construction level, the structure is made of waffle slab room, bar, and private beach club. Parking is also available.
concrete with temporary formwork and/or cast-in blocks. The in-
verted roofs are traffic bearing and outer cladding has been done
using single-layer systems.322 RESIDENTIAL HOMES IN NUEVA ALCÁNTARA, A MEDITERRANEAN TOWN.
Residential complexes and public works
SAN PEDRO DE ALCÁNTARA. SPAIN
Client: Proincosta, S. A.
Budget: 22.8 million euros
Completion date: 2005
Complex consisting of five developments and a total built area of 67,420 m2 with
322 multi-family homes distributed on a ground floor, two upper levels and an attic
level. Most homes have three bedrooms, two bathrooms and a separate toilet,
although there are also two and four bedroom units. The design was inspired by
popular Mediterranean architecture.
The buildings were developed around an open block with garden areas and common
swimming pools. The complex also has a car park with a security post.
235 HOUSING UNITS IN THE UER-14 PLOT 1B. EL RINCÓN DE LA VICTORIA. SPAIN
Client: Veganarcea, S. A.
Budget: 19.2 million euros
Completion date: 2005
12 Four blocks of eight floors each make up this residential area of more than 28,500 m2,
distributed over 235 homes and common areas, landscaped green areas, and common
pools. The complex also has two car parks on the basement floor with 241 spaces and the
building ground floors are destined for commercial use.
The foundations have been laid with reinforced concrete slabs on a bed of gravel. The
entire structure is of reinforced concrete and yield strength steel. The slabs have waffle
edges and the concrete coffers are cast in place. The façades consist of brickwork and
cement mortar with a continuous waterproof coating. The roofs are flat.
76 HOMES, GRAN FOLIES (BEACH RESORT). CALA LLAMP. PUERTO DE ANDRATX. BALEARIC ISLANDS. SPAIN
Client: Inmobiliaria Espacio
Budget: 16.4 million euros
Completion date: 2003
Luxury residential complex with a built area of 12,800 m2, distributed over four buildings
with four floors each, plus a fifth underground level. The complex has 76 one-, two- and
three-bedroom homes, ranging in size from 95 to 300 m2.
The residential units have aged marble finishes, hydromassage showers, underfloor
heating, individual hot-cold air conditioning in each room, and a fireplace. The
residences are surrounded by large terraces and gardens with sea views. The common
areas have a swimming pool, private beach, and social club known as Cala Llamp.Landmark building work and rehabilitation
FOUR SEASONS PRIVATE RESIDENCES MADRID. CENTRO CANALEJAS MADRID. MADRID. SPAIN
13
Client: Centro Canalejas Madrid, S.L.U.
Budget: 15,000 euros/m2
Completion date: 2020
The Four Seasons Private Residences are located on floors five They are all equipped with the latest technology, aimed at op-
through eight of the Centro Canalejas Madrid. The 22 homes have timising energy performance, and responding to international
been designed by internationally renowned interior design studio standards of environmental sustainability, such as LEED® Gold
Luis Bustamante. certification. The Four Seasons hotel is located in the same
building and residents also have access to the spa and swim-
They have an average surface area of between 150-200 m2, in the ming pool.
case of the apartments, and of more than 700 m2 for the duplex
penthouses with terraces. Each residence is accessed through an They have 24-hour security, chef, chauffeur, concierge, and car
exclusive building entrance. parking spaces with specific electrical vehicle sockets.Landmark building work and rehabilitation
11 SINGLE-FAMILY HOMES, COSTA BLANCA 57. ABAMA TERRACES PHASES I, II, III, IV AND V.
EL CABO DE LAS HUERTAS, ALICANTE. SPAIN TENERIFE. CANARY ISLANDS. SPAIN
14 Client: Inmobiliaria Espacio Client: Abama Terraces, S.L.
Budget: 2.1 million euros Budget: 44.5 million euros
Completion date: 2019 Completion date: 2013 (Phase I), 2015 (Phase II),
2017 (Phase III), 2018 (Phase IV) and 2019 (Phase V)
3,844 m2 residential complex composed of 11 single-family
homes each with three above ground floors and a basement floor. A luxury residential complex, designed in five phases, stands on
Close to the sea, the residences have concrete structures, a flat 49,538 m2 of land. It is located on the southwest coast of the
traffic-bearing roof, natural grey finishes, and façades with a high island of Tenerife, in the Guía de Isora area, surrounded by ex-
degree of insulation. tensive palm groves overlooking the La Gomera island and the
Atlantic Ocean.
The floors have been made with high quality materials such as
Italian marble, floorboards, and stoneware. The carpentry is The complex has 150 homes –from one to five bedrooms– dis-
made of aluminium and the remaining facilities are environmen- tributed in 14 buildings with three floors above ground each
tally friendly in terms of energy efficiency. and a fourth basement level where there are storage rooms, car
parks, and a mechanical room. The blocks are connected to each
Its structure is made of reinforced concrete, with two-way waffle other through the basements and their finishes showcase a sim-
slabs. It has a double-skin façade with an exterior hollow brick- ple and elegant design, combined with high efficiency facilities
work wall and interior cement plastering with various exterior and quality materials.
finishes in white mortar. The inner skin is made of 15 mm plas-
terboard panels on metal profiles with uprights every 40 cm and
mineral wool panel thermal insulation.
The common areas have a swimming pool, showers, garden areas,
and a children’s play area.Landmark building work and rehabilitation
ABAMA BELLEVUE PHASE I AND PHASE II. TENERIFE. REHABILITATION OF 16 HOMES AND COMMERCIAL
CANARY ISLANDS. SPAIN PREMISES IN CALLE ALFONSO, 41. ZARAGOZA. SPAIN
Client: Abama Terraces, S.L. Cliente: Peñatelera, S. A. 15
Budget: 14.2 million euros Budget: 2.0 million euros
Completion date: 2018 Completion date: 2018
The Bellevue complex, with a built area of 6,910.76 m2, is divided Complete restoration of a late nineteenth-century French-style
into two phases with eight and six independent residences, each building that has been listed in Zaragoza’s Catalogue of Protected
one of them with two floors above ground and a third one be- Buildings as one of architectural interest grade A. The work under-
low ground. They boast views of the golf course fairways and the taken has enabled it to be converted into a residential space with
Atlantic Ocean. a built area of 2,246 m2 distributed over six floors above ground
with a seventh floor underground; this has created 16 homes and
The residences have a surface area of between 185 and 260 m2 ground floor commercial premises.
and are located on plots of between 400 and 650 m2 with private
access. All of them have a private parking space and swimming The work carried out included selective demolition and reinforce-
pool on the ground floor, while the two-storey residences have a ment of the foundations by underpinning existing footings. The
small swimming pool on the first floor. There are two-, three- and structure has been consolidated using reinforced concrete slabs
four-bedroom residences. to support the existing solid timber beams and ceramic beam fill,
and the roof has been replaced.
The complex has a common garden area and 24-hour surveil-
lance. There are also sport areas to play tennis, as well as a golf The façade was fully restored using plastered brickwork. The
course which is rated as one of the best in Europe. All residences building has a homogeneous arrangement, and the apartment
have home services such as cleaning, washing, gardening, pool floors have balconies overlooking both streets that progressively
maintenance, and catering. reduce in height towards the top of the building. These openings
have lintels and a segmental arch in the centre of the façades.Landmark building work and rehabilitation
EAST RIDGE RETIREMENT VILLAGE. REHABILITATION OF 28 APARTMENTS, OFFICES AND
FLORIDA. USA PREMISES IN PASEO SAGASTA. ZARAGOZA. SPAIN
16 Client: Santa Fe Senior Living Client: ARBAR, S.L.
Budget: 31.9 million euros (37.0 million USD) Budget: 3.1 million euros
Completion date: 2015 Completion date: 2012
Conversion of a group of buildings into a residential space with Rehabilitation of a modernist building from 1904 listed in
90 apartments for the elderly. Zaragoza’s Catalogue of Historical-Artistic Buildings as one of
architectural interest. It has a built area of 3,451 m2, distributed
The complex also has an annex building in which there is a spe- over six floors plus a seventh mezzanine floor.
cialised nursing unit with 60 rooms and the capacity for 70 beds,
and a memory care unit with 30 rooms and the capacity for 35 beds. The building has 28 one- and two-bedroom apartments, offic-
es, and commercial premises located on the mezzanine floor, as
Common spaces include a dining room, recreational and therapeu- well as an interior space made up of three courtyards, two of
tic areas, as well as areas where offices and other administrative, which open up to the homes through walkways to provide ac-
kitchen, and laundry services are located. cess and natural light.
There are also common green areas, a golf course, and trails de- Of particular mention is the rehabilitation and conservation
signed for walking and sporting activities. work carried out on the façade and stairwell, in addition to the
metal reinforcement installed to consolidate the structure.
Original skylights consisting of small openings in the façades
were also recovered, which correspond to the mezzanine apart-
ments and commercial premises. The façades have linteled bal-
conies and they were also plastered to simulate ashlar masonry
work with a stone base.Landmark building work and rehabilitation
CALLE JOAN D’ALOS 5-7 BUILDING. PEDRALBES, 35 HOMES AND CAR PARK ON CALLE CISTER, 3
BARCELONA. SPAIN AND CALLE SAN AGUSTÍN, 4. MALAGA. SPAIN
Client: Mark Andrew Weingard Client: Espacio Zona Prime, S.L. 17
Budget: 2.7 million euros Budget: 7.3 million euros
Completion date: 2012 Completion date: 2010
2,000 m2 single-family home with three floors and a basement floor The two historic buildings with protected façades stand on an
located on an irregular plot of more than 1,800 m2. It includes areas L-shaped plot located in front of the city’s cathedral. They have a
for terraces, two porches, a 40 m2 outdoor swimming pool and a built area of 5,610 m2 and four floors plus attic, distributed across
beach area of 53 m3 and incorporates a comprehensive home au- 35 homes and 44 partially automated parking spaces. The homes
tomation system. have centralised Variable Refrigerant Volume (VRV) air conditioning,
telecommunications, basic home automation, fire protection, and
The ground floor is designed for guests, with six en-suite bed- an irrigation system. The interior courtyard is landscaped.
rooms, two independent kitchens, two living rooms and a 30 m2
office; while the first floor, the owner’s private area, houses the The internal height of both buildings has been increased as part of
bedroom, with two bathrooms, two dressing rooms and two offices the rehabilitation and refurbishment works, while the foundations
over a total area of 125 m2. On the upper floor is the living-dining were built using diaphragm walls and CPI-4 piles to support the
room, TV room, kitchen and a 52 m2 outdoor terrace. slab. This allowed archaeological excavation work to be carried out
under the slab: a significant unique feature of this project is that
Its structure is made of exposed concrete walls with sanitary and Phoenician ruins were preserved in the building subsoil.
waffle slabs finished with a Krion-type ventilated façade. It has three
roofs, one of which is non-traffic bearing and finished with gravel, an-
other which is traffic-bearing, and an inverted green roof. The façade
has a sculptured nature and is built using Corian® large-format piec-
es of up to 15 m2 in surface area. This material was adapted to the
design, as it can be thermoformed and bent to create exaggerated
curves. 90% of the pieces were manufactured at the workshop in
order to guarantee quality, ensuring joints and sanding are homoge-
neous and more uniform that pieces placed on site.Landmark building work and rehabilitation
ALGERIAN EMBASSY. MADRID. SPAIN
Client: Embassy of the People’s Democratic Republic of Algeria
Budget: 6.1 million euros
Completion date: 2009
The building has three main volumes: an orthogonal space that is embedded in the
ground, a second block that has been moulded according to the interior spaces,
and a third which serves to connect the first two volumes. All are set on terrain with
significant differences in height across the plot.
The building has three floors above ground and a fourth level below ground, and is
characterised by a design that meets the need to provide ample spaces for official
events while also having a private area for residential use.
Its sober finishes are achieved by selecting high-quality natural materials such as
travertine marble, used in exterior and interior cladding and flooring. Solid wood
and large glass windows have also been used. Outside, the residence is surrounded
by a large garden with a swimming pool, where the same types of finishes are used
to guarantee a harmonious ensemble.
THE PALACE AT WESTON SENIOR LIVING. WESTON, FLORIDA. EEUU
Cliente: Helen Homes, LLC
18 Budget: 57.9 million euros (85 million USD)
Completion date: 2007
This is a unique project since it is intended exclusively for people over 55 years of
age, who are either independent, or in need of medical assistance and care.
The complex has of a total of 350 apartments and 32 villas, as well as common spa-
ces for sports, a network of walking trails, an artificial lake, and landscaped areas.
There is also a common swimming pool, a spa area, a beauty centre, a recreation
room, spaces for collective games, a library, and a wellness centre.
HYATT REGENCY BONAVENTURE RESORT AND RED DOOR SPA. WESTON, FLORIDA. USA
Cliente: The Ireland Companies
Budget 14.3 million euros (21.1 million USD)
Completion date: 2007
Renovation of nine buildings of four floors each and an annex to be used as a spa. There
is a built area of more than 4,800 m2 and the common areas include large green spaces
covering over 93,000 m2.
The common spaces also include swimming pools and the Red Door Spa centre, the
largest in the United States and the first located on the East Coast.Innovation and sustainability
Innovation and sustainability come together in residential construction processes by applying state-of-the-art technologies and
methods as well as sustainability criteria aimed at recycling, transforming, and reusing construction materials and responsibly
Innovation and sustainability
managing natural resources during project execution. The result is sustainable housing that respects the environment and
guarantees the well-being of its users.
OHL has developed its own innovative solutions for the efficient and safe construction of residential buildings. Of particular note
is the high performance excavation process for basements in urban areas, where space limitations and the effect on adjacent
structures make conventional excavation techniques infeasible; another example is the construction process for post-tensioned
concrete diaphragm walls with displacement control, which significantly reduces or even eliminates the need for ground anchors,
and the use of intermediate props in containment elements such as interior anchors and props.
OHL also has experience in developing new ecological building materials, such as concrete based on geopolymers obtained
from microsilica, creating a way in which this industrial by-product can be reused; in energy efficiency terms, the company has
incorporated measures that respond to Nearly Zero Energy Buildings criteria (nZEB).
Digitalisation is also used in its building construction processes, particularly through BIM (Building Information Modelling)
methodology, which can improve the efficiency, quality, and control of projects throughout their entire life cycle: covering design,
construction, and operation.
Forming part of international initiatives
OHL has participated in various EU-driven programmes aimed at R&D for building solutions. These initiatives include Built2Spec: 19
new process control systems, a project financed by the European Commission in which 20 partners from eight European countries
take part, and OHL is the only Spanish construction company present. The initiative is based on developing and validating a set of
technological advances for in-situ quality control of variables such as indoor air quality; air tightness with air pulse control; acoustics;
thermal imaging; and the integration of all this information with BIM models through a virtual construction management platform.
Through the AZEB initiative (Affordable Zero Energy Buildings), OHL has participated in defining, disseminating, and providing
training on a methodology to better control and understand the complexity of sustainable construction. This initiative has helped
to build comfortable and affordable buildings with which users can save energy and easily contribute to climate protection. This
project is being undertaken by eight partners from six countries and has been co-financed by the European Commission. OHL has
been the only Spanish construction company involved.
The RESSEPE project (Retrofitting Solutions and Services for the Enhancement of Energy Efficiency in Public Edification) is also
co-financed by the European Commission and OHL is the only Spanish construction company to participate, along with 24 other
partners from ten different countries. Its objective is to design a novel methodology to evaluate, adapt, and implement innovative
energy-efficient technologies for public building retrofitting projects.www.ohl.es
OBRASCÓN HUARTE LAIN, S. A.
Torrespacio
Paseo de la Castellana, 259 D
28046 Madrid, Spain
Tel.: + 34 91 384 41 00
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