Residential complex Villinki

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Residential complex Villinki

Financing
Promotion and production

Main objectives of the project

The residential complex consists of four residential buildings, kindergarten and commercial services. It frames a structured public space in form of main communication axis surrounded by green areas and small playground. Publicly open community garden with fruit-trees and barbecue is integral part of the complex.

Date

  • 2015: Construction

Stakeholders

  • Architect: Matej Grebert
  • Architect: Miroslav Catlos
  • Architect: Juraj Benetin
  • Architect: Peter Moravcik

Location

Country/Region: Bratislava, Slovakia

Description

The residential complex is situated on the periphery of the Slovak capital on the edge of a large housing estate from 1970s and the fabric of scattered family houses. It lies on a hillside with southern exposure and an attractive view. The complex consists of four residential buildings with 64 mainly 1- and 2-bedroom apartments, which are complemented by kindergarten and rentable spaces for services and offices. Below the surface the parking garage for residents and visitors is situated. The central longitudinal public space is clearly articulated in terms of sloping ground and runs into the community garden. The private gardens that are part of the ground floor apartments run into the community garden as well. On the top floors of all four residential buildings are roof apartments with large green terrace, designed as a "house on a house".
The residential complex tries to solve the typical problem of periphery, where new developments meet the modernist housing estates and scraps of original rural settlements without solving the relation to the surroundings and without creating any added value in the form of public space and services. Our aim was to eliminate such negative effects of densification and exploitation of the territory. We have designed the complex in a form of pavilions that articulate the open spaces in correspondence with the urban planning principles of the housing estate embodied in the semi-enclosed courtyards. In the same time the new complex reflects the low building structure of the surrounding family houses. Unlike neighbouring monofunctional new developments the complex is hybrid structure that integrates housing, kindergarten and rentable spaces for commercial use. The residential houses are of hybrid nature when associating three different types of apartments all with large balconies, terraces or gardens with attractive views. The complex brings spatial and functional diversity to the city periphery and integrates it into the urban context.
Residential complex is realized as a reinforced concrete skeleton with brick infill. Skeleton enabled variability in ground plan solutions and integration the residential function and facilities in one building. At the same time it allowed the implementation of large glassed walls on the south facade overlooking the valley. Plastered facades surface refers to the housing blocks from 1970s and the neighbouring family houses. The stronger colours used in the housing complex help in the same time to distinguish it from the surrounding. Plaster is complemented by the wooden shutters – shades. Their elementary geometry refers to the picturesque back yards of the neighbouring old family houses. Southern exposed façades are in the same time framed in to compact stereotomic frames, which are visible especially in long-distance views on the exposed area. The choice of a simple material solution is also a direct result of the construction costs limit and subsequent marketability of apartments. The lower demands on maintenance correspond to the general low cost strategy.

Residential Complex Condominium Devín

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Residential Complex Condominium Devín

Financing
Promotion and production
Ownership and tenure

Main objectives of the project

Housing complex in frame of the historical village structure, Bratislava-Devín, Slovakia

Date

  • 2017: Construction

Stakeholders

  • Architect: Tomas Cechvala
  • Architect: Peter Moravcik

Location

Continent: Europe
Country/Region: Slovakia

Description

Condominium Devín is housing complex in frame of the historical village structure situated in the Bratislava-Devín District, in the protection zone of the national cultural mo-nument - Devín Castle. Family houses create together a system of intimate spaces. However, on the side of the street, houses try to create a suitable mantinel for a pleasant stay in the public space. From the street, the facades of the houses are irregularly graded, making it a colorful vista and exterior spaces. New alley is integrated in the existing system of a streets of the old village under the castle rock.
New residential neighborhood in the village intravilan. A smaller scale of shared housing, a direct confrontation with the surrounding urban and historical context. Creation in a complex cultural and physical environment.

The resulting structure has formed a multi-stakeholder dialogue. Architects have tried to find a penetration between often conflicting requirements and to bring a slightly different view of housing. As a result, there is a rugged "villainous" residential structure with well-differentiated semi-public, public and private spaces, which gives the inhabitants plenty of intimacy.

We see that there is a "fair mess" in this project. There are flat and sloping roofs. Oriented sometimes by a street shield, sometimes on the other side of the street. The individual objects do not respect any unambiguous regulation applicable to all houses, no regulation, no prescribed uniformity. In spite of this controlled chaos, the result is a very interesting composition. Not only in terms of "high architecture". The result is an natural growing urban structure.
The objects have vertical load-bearing structures made of hebel brickwork. Horizontal structures are made of monolithic reinforced concrete ceilings. Prefabricated structures are made of reinforced concrete prefabricated structures, anchored through thermal insulated baskets (so-called iso-hulls). The foundations were made on base strips and thin reinforced concrete slab. Finishing facades are made of thin and coarse-grained plasters. Aluminum windows were planted in window openings.

Soap factory Heymans

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Soap factory Heymans

Policies and regulations
Urban Design
Promotion and production
Ownership and tenure

Main objectives of the project

The Savonnerie Heymans complex reflects a truly sustainable approach by recreating a real new neighbourhood of 42 low-energy and passive social accommodations including apartments, lofts, duplexes and Maisonettes.

Date

  • 2010: Rehabilitación

Stakeholders

  • Architect: Marie Moignot
  • Architect: Xavier de Wil
  • Architect: Gilles Debrun

Location

City: Bruxelles
Country/Region: Belgium, Brussels

Description

Winning scheme of a European competition organised by the developer, the Savonnerie Heymans complex reflects a truly sustainable approach by recreating a real new neighbourhood of 42 low-energy and passive social accommodations including apartments, lofts, duplexes and Maisonettes. Although a 100% public housing scheme, thanks to the diversity of its program the Savonnerie Heymans provides a variety of spaces echoing the diversity of the people living in the very heart of Brussels. Glass-enclosed bioclimatic loggias characterise the entire complex, providing an effective acoustical and thermal barrier but also providing a sense of privacy.

On the 6,500m² site of a former soap factory less than half a mile from the Grand’Place, the social housing project creates a real “village” of 42 sustainable accommodations of different types including studios, 1 to 6-bedroom apartments, lofts, duplexes and Maisonettes.

Although a 100% public housing scheme, thanks to the diversity of its program the Savonnerie Heymans provides a variety of spaces echoing the diversity of the people living in the very heart of Brussels. Glass-enclosed bioclimatic loggias characterise the entire complex, providing an effective acoustical and thermal barrier but also providing a sense of privacy.

Considering Brussels’ rapid growth in population, the scheme features high density accommodations equipped with amenities such as a room for social meetings and events, a crèche and extensive public space: the “Mini-forest” garden, the 3D landscaped park and playground and the main promenade.

All the existing valuable - but not listed - historic buildings and elements such as the chimney, the main 19th century house on the street and the postal relay were retained and integrated into the complex (the 40m high chimney, for example, was used as part of the underground garage ventilation system).

The glass-enclosed bioclimatic loggias provide each housing unit with a state-of-the-art acoustical and thermal barrier requiring no expensive/complicated services to run and lowering considerably energy consumption. The Loft building has been treated one step further as thanks to super-tight insulation, the building is now considerate “Passive” and requires less than 15 Kw/m2 per year to heat.
Located on the site of a former soap factory, the decontaminated land now welcomes a high-density social housing complex that provides a series of private outdoor spaces allowing its occupants to interact easily with each other and creating a convivial, village-like atmosphere.

The scheme was intentionally developed around the concepts of sustainable development (socially, economically and environmentally) and relies on low-serviced buildings. The glass-enclosed bioclimatic loggias provide each housing unit with a buffer acting as a state-of-the-art insulation tool lowering considerably energy consumption and protecting from the city centre noises. They also allow sharing the variety of arrangements of the semi outdoor space of each individual unit.
Beside the loggias, the scheme also features a collective heating system for the entire site (cogeneration), sanitary hot water heated by 60m² of solar panels, rainwater harvesting and natural materials for insulation (hemp fibres, expanded cork etc.). Whenever possible, existing buildings and structures have been retained and reused.

Residential building St. Gallenkirch

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Residential building St. Gallenkirch

Financing
Urban Design
Ownership and tenure

Main objectives of the project

Living like in a Rubik dice. A residential complex in which no other dwelling is like the other and can lend a room to another apartment just like it is needed.

Date

  • 2016: Construction

Stakeholders

  • Architect: Markus Dorner
  • Architect: Christian Matt

Location

City: Gemeinde Sankt Gallenkirch
Country/Region: Austria

Description

Since 2005, the state of Vorarlberg has been committed to building an energy-efficient building culture, particularly in integrated housing construction. This also includes a high-quality and resource-conserving building, in which economics and ecology, social and culture are in harmony.

For the new residential complex in the center of St.Gallenkirch these ideas are deduced from the local volumetry of the solitaires on the slope and applied to the new building.

a clear construction body is deliberately placed at the dedication limit and turned to the found slope.

This creates with the surrounding buildings and terrain edges, strong local-spatial relations such as to the church as well as the distant Silvretta or the Gweilgroup.
In the Montafon, the settlements were often built near the bottom of the valley in favor of the higher and better-sheltered soils on the mountain. This rural value is opposed to the reduction of the daylight of the valley. The new residential building is located on the valley's lowest settlement boundary.

A resource-conserving strategy and considerations of cost-effectiveness allow new ways to recover the lost light. Thus almost every apartment - apart from the last level on top of the building - has about eight square meters of air space over two floors. Nature and light penetrate these openings deeply into the interior and they leave the views to the outside in the distance linger.

The rooms of the apartments overlay each other and layer themselves over the floors in a central "supply core".

This high flexibility of the basic design results from the modular development concept. It is like a tetris with many solutions.
The conceptual simplicity turns itself as it were from the inside outwardly.

The energetic supply strings and the wet rooms are located around the central development zone of reinforced concrete.

Between this zone and the outer skin in a multibox construction lies the adaptable range of variance instead of addition - even in the third dimension.

The reflections on the interior are also visible in the façade.

The room-high, prefabricated riftboard elements form the frame for the lower multi-box and give the building a pleasant tectonics. A single window type is added according to the inner texture.

Neppert Gardens Social Housing, 59 Dwellings

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Neppert Gardens Social Housing, 59 Dwellings

Financing
Urban Design
Promotion and production
Ownership and tenure

Main objectives of the project

The project is located in Mulhouse in a popular district close to the city center, currently under renovation. It includes 59 social rental dwellings developed by SOMCO, operator on public social housing. A few years after the Cité Manifeste experience, our common goal was to pursue the same aims: generous dwellings without increasing the rent.

Date

  • 2015: Rehabilitación

Stakeholders

  • Architect: Anne Lacaton
  • Architect: Jean Philippe Vassal

Location

City: Mulhouse
Country/Region: France, Mulhouse

Description

3 blocks of 20 dwellings that are built along the two streets; Neppert and Buhler and define a collective small garden in the middle.

The aim of the project is first defined in terms of quality of living :

- to create dwellings with surfaces bigger than standard.

- to offer additional and intermediate spaces with characteristics that differ from traditional rooms in an individual house and that widen the possibilities for usage, the diversity of spaces and the climatic conditions.

- to bring the collective housing close to the qualities of an individual house in developing outdoor spaces that extend the indoor rooms.

- to optimize the number of dwellings in comparison to the plot capacity in order to develop an efficient project economy that allows to create the largest possible surfaces for the housing.
The objective shared with the client was to create an innovative project with typologies that differ greatly from standard. The aim is to create a diversity in housing and a social mix, an attractive housing scheme in an area that is little sought after.

The flats, from T1 to T5, offer various plans and typologies of one-storey and duplex apartments.

The housing units offer surfaces that are nearly twice as large as a standard dwelling but nevertheless within the same budget. They offer living spaces in a dense urban environment that are comparable to those of a house.

The density, the maximum use of the right to build on the site, the combination of typologies, the effective construction system along with collaboration with the developer have all combined to allow for this generosity in space whilst also creating a large number of dwellings.

All the flats are dual-aspect. The living rooms, (south east orientation and a 10m wide façade), open on to a terrace that can be fully closed in winter.

These winter gardens, largely open in summer, define a bioclimatic system with a wide natural ventilation.

They offer an extra space supplementary to the living rooms, like a private garden.
The efficiency of the structure is the key point in the economy of the design that allows for the creation of oversized surfaces without an increase in construction cost.

The 3 buildings are designed on the same principles of construction: a post and beam structure with reinforced concrete slabs, using prefabricated elements. The 10m grid, without intermediate posts, defines the width of the dwellings and allows for the creation of large spaces that are not constrained by the structure.

The facades consist in fully glazed sliding framework and are equipped with thermal curtains and shading devices.

The winter gardens are closable in winter with the use of aluminum framed shutters clad in transparent polycarbonate. These are sliding shutters that come to stand on one side of the balcony.

The bioclimatic concept performs in terms of energy saving and fulfills a good standard of low energy construction.

The winter gardens create an intermediate non-heated space that plays a very active role in the thermal efficiency. They improve and naturally moderate the normal external conditions by creating a buffer volume, very favorable in terms of energy saving.

Apartment Buildings Hiiu-Suurtüki 4

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Apartment Buildings Hiiu-Suurtüki 4

Mismatches
Financing
Urban Design
Promotion and production

Main objectives of the project

Hiiu” is an ongoing residential development by OÜ Tardamel located in Tallinn, Estonia.

Date

  • 2013: En proceso

Stakeholders

  • Architect: Indrek Rünkla
  • Architect: Ulla Saar
  • Architect: Sven Koppel
  • Architect: Tarmo Laht
  • Architect: Andres Alver

Location

Continent: Europe
City: Tallinn
Country/Region: Estonia, Tallinn

Description

The complex includes 8,500 m² of residential units – 23 apartments (phase 1 – built) and 10 single-family residences (currently under construction), all integrated into the surrounding landscape of the Tallinn’s picturesque historic garden neighborhood of Nõmme.

The project was defined by its site and the local zoning regulations which restricted the amount of developable space to a maximum of 33 housing units (600 m2 of plot area per unit) with a very low total FAR. Thus, the overall concept of the project became to be “Buildings in the park”.

The apartment houses are put into a relatively dense arrangement on the western side of the site to provide for a more urban/communal atmosphere, in contrast to the rest of the development which is comprised of individual buildings placed discretely into the site. The parking level is located under ground, reducing the bulk of the development and tying the buildings together both under ground and above via a communal public space. Between the apartment houses and the private residences there is a water feature, embellished by a sculpture which provides for a picturesque living environment for the residents.

There were a number of factors that defined the solution for the facade of the apartment complex.
First and foremost, it was the picturesque environment in which the complex was to be placed. The architects wanted to blend the complex into the environment, but to do it in a modern way. Thus, it was decided to go with copper cladding. Given its chemical properties, copper will turn green over time, letting the building age elegantly while slowly blending into its surroundings.

Using copper was also dictated by the will of the architects to merge the roofs and walls of the buildings. In Nõmme, the picturesque historic area of Tallinn, the zoning regulations restrict the maximum bulk of buildings to two floors with a half-floor attic.
While typically this results in a default gable-roof typology, Alver Architects used the restriction as a creative form-generating tool, while using copper to visually merge the walls and the roofs of the buildings. The result is a development which while conforming to the regulations, still boasts a unique character, and generates extra value for the developer.

The stripy texture of the facade of the apartment houses was a solution to the tight budget constraints. As it is cheaper to procure thin stripes of copper rather than large uniform panels or sheets, the facade was composed of thin copper ribbons of different length and width. Once the copper facade was laid out, the windows were placed into it in such a way that they matched the module of the facade, while following the inner logic and insolation requirements of the apartments inside.

Block 0704

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Block 0704

Mismatches
Financing
Promotion and production
Ownership and tenure

Main objectives of the project

Block 0704 presents a new type of urban housing that attempts to challenge conventional architectural typologies of the apartment block.

Date

  • 2013: Construction

Stakeholders

  • Architect: Christos Christodoulou
  • Architect: Marios Christodoulides

Location

Continent: Europe
City: Geri
Country/Region: Cyprus

Description

The block can be reinterpreted as a collection of ‘suburban residences’ that include two levels of spaces offering a separation of common areas and private spaces, a more immediate and effective relationship with the outside, a relatively large covered outdoor area, and the use of natural elements as deciduous trees to moderate the microclimate of each space. The relationship to the street becomes secondary with the arrangement of the spaces suggesting a more introverted experience that also encourages the modern dwellers to maximize use of the space and the relationship between indoors and outdoors. The traditional protruding verandas of the typical apartment block are reintegrated into the main mass of the building becoming an integral part of the interior/exterior spatial experience, both visually and functionally. Consequently the apartments attempt to satisfy contemporary desires which require flexibility, privacy, and a more inclusive relationship with the outdoors.
The area is relatively densely populated and characterized mostly by large residences, as well as a small number of apartment blocks, and full-grown vegetation offering shade during the summer months. It offers the benefits of a small and quiet neighborhood, with the convenience of being within walking distance to the city center.

Block 0704 includes eight apartments, four two bedroom units and four three bedroom units. The units are arranged in two levels, with the bedrooms being on a different level from the living and kitchen areas. The sleeping areas of the smaller units are on the lower level while in the larger units they are situated on the upper level.

The building was designed to reduce the need for mechanical support in creating a comfortable environment as much as possible. All apartments are two level with double height spaces and are located at the four corners of the block. Daylight enters the interior spaces from two directions and at both levels.
Also cross ventilation for cooling becomes much more effective. To allow for direct sunlight in all spaces at some point during the day, especially during the winter months, all the units have controlled openings facing either east, south, and/or west. The deep verandas facing east and west receive plenty of sunlight but prevent direct sunlight from reaching the large sliding glass doors and interior spaces during the hot summer months.

All exterior spaces are covered except the cantilevered sections of the balconies that have provisions for trees. These trees can act as a brise-soleil regulating the micro climate of the immediate covered spaces, and also of the interior spaces. The outdoor covered areas for each apartment are very generous and are in direct relationship with the interior spaces. This makes them useable at all times of the day, and for the greater part of the year.

The plot size is 669 sq.m. The interior spaces are 936 sq.m. There is an additional 316 sq.m. of covered areas. The three bedroom apartments are 150 sq.m. and the two bedroom 120 sq.m.

Apartment Building in Pagkrati

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Apartment Building in Pagkrati

Mismatches
Financing
Promotion and production
Ownership and tenure

Main objectives of the project

The six- storey apartment building attempts to redefine the expression of a multi-unit housing building and its relationship with the existing, densely populated, urban fabric of Athens. At the same time, it is a new bioclimatic approach of organizing the front of the building block to the street and the public space of the city.

Date

  • 2019: Construction

Stakeholders

  • Architect: Demetrios Issaias
  • Architect: Tassis Papaioannou

Location

Continent: Europe
City: Atene
Country/Region: Athens, Greece

Description

After the Second World War, Greek cities developed under a particular entrepreneurial activity based on the activities of a small-scale construction industry and land acquisition. The key economic mechanism used was what is known in Greek as ‘antiparochi’, a land allowance, quid-pro-quo informal agreement between landowners and contractors, and the building model that fit the above was the multi-storey apartment building, namely the “polykatoikia” type. In order for this to work and to be profitable, plot sizes had to be of a certain dimension. This meant that many smaller plots have remained until today unbuilt, unused and abandoned, with small structures as traces and ruins of the past.

The plot, of just 119m2 and with an almost triangular shape, is what was left unbuilt in the block, defined by a partially demolished, pre-war three-storey building. If this plot was uneconomical and unprofitable for the typical contractor to develop, it consisted of a particular challenge for the design of a new building of small housing units, which would have to evolve in height.
A dense, homogenous urban form of tall apartment buildings characterizes the neighborhood. The building operates as an infill to the block, completing the continuous urban, street façades, while a sense of ‘hovering’ is created by leaving the entrance level open and permeable, creating a pilotis with a courtyard at the back of the plot. This courtyard visually connects the busy street with the small, uncovered spaces at the heart of the block.

The tubular-shaped staircase defines and differentiates the building from the adjacent “polykatoikia” and, like swivel, signifies the vertical circulation. Moreover, it liberates building mass from the party wall, expressing and transferring to the street the dynamic geometry of the triangular plot.

A particularly important strategic decision, which serves the environmental and bioclimatic design, is the creation of a layered façade, from the second level to the top of the building. At the top floor, the façade folds and turns into a pergola of a generous roof garden offered to all inhabitants to enjoy the spectacular, panoramic view to the city and its two most characteristic landmarks: the Parthenon and Lycabettus Hill.
The building is constructed of reinforced concrete, left un-plastered and in its natural color, both externally and internally. There is also extensive use of metal elements, in secondary structural elements, window frames and various details. The bioclimatic performance and energy output of the building was of particular concern with natural light and ventilation for all spaces and the use of renewable energy sustainable systems. The wooden panels are a key characteristic of the morphology and materiality of the project. Apart from creating double façade for solar protection and management, they operate as filter for the noise and the disturbance of the city, forming private semi-outdoor spaces. The panels are movable and therefore introduce an element of constant and dynamic variability through time.

Finally, the project explored the organic relationship between architecture and art, with the introduction of carefully selected forms from the work of Greek painter Alekos Fassianos that define different edges of the project. The architects also designed most furniture and internal equipment, made of plywood boards and timber in natural color.

Serpentine House Refurbishment

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Serpentine House Refurbishment

Policies and regulations
Financing
Promotion and production
Ownership and tenure

Main objectives of the project

The Serpentine House is one of the best-known residential developments from the post-war years in Finland and listed by DOCOMOMO Finland as a significant example of modern architecture. The aim of the refurbishment project has been to preserve and enhance the building´s architectural values while solving multiple technical and functional issues.

Date

  • 2020: Construction

Stakeholders

  • Architect: Marica Schalin
  • Architect: Kristina Karlsson
  • Architect: Mona Schalin

Location

Continent: Europe
City: Helsinki
Country/Region: Finland

Description

The long, undulating, four storey tenant block, with its 189 rental flats, is situated on a hilly site at the edge of an garden city area. The courtyards have been redesigned preserving the sylvan character.

The flats consist mainly of two rooms, kitchenette and bathroom. They have been upgraded with special attention to bathrooms, fixtures and fittings. The original kitchen cabinets have been repaired when possible.

Common facilities have been refurbished.

The roof slab has been replaced by a ventilated construction. The exterior rough plastering and balconies with their delicate railings have been reconstructed. Windows and balcony doors have been repaired and any details in poor condition have been replaced. The original colour scheme has been reconstructed in collaboration with a conservator, applying traditional paint methods.
The long road from preliminary condition surveys to successful completion of construction can be seen as a didactic example of a process with many stakeholders involved. Not least because of the specific challenges concerning the conservation of modern architecture.

By 2010, the exterior and the dwellings had long suffered from lack of funding for maintenance. Rejecting the initial renovation programme, based on purely technical and functional priorities, the building permit authorities demanded focus on architectural values. Eventually, the Serpentine House, both buildings and site, were protected in a detailed town plan.

Since the protection had established strict boundaries for intervention, preserving the original architectural, spatial and material characteristics clearly emerged as an objective shared by the client, the authorities and the design team, even as the task was to solve serious technical and structural problems and introduce functional improvements.

The implementation was planned in two stages, the first stage serving as a test lab for the methods and practices during the four years of construction.
The main improvement issues have been the technical performance of the roof and the external walls, built of brick and Betocel blocks. The balconies from a time when steel was scarce, have been rebuilt. The ventilation duct system has been renovated.

The Serpentine House has received publicity as a model for sustainable renovation - the original wooden windows and kitchen cupboards have been repaired with carpenters´skills, the natural ventilation has been improved, the tenants have been able to return to their flats after the construction, the common facilities and the courtyards have been improved.

The future lifespan of the 70 years old buildings has now been secured. The lasting features are the loadbearing structure, the building envelope and the floor plan, while roofing, ventilation, plastered and painted surfaces, fixtures, cupboards, windows etc. will require maintenance according to an appropriate plan. Fortunately, Helsinki City Housing Company has an expertise in dealing with the maintenance of a huge amount of buildings from the 20th century.

5 Social Dwellings

1

5 Social Dwellings

Policies and regulations
Urban Design
Promotion and production
Ownership and tenure

Main objectives of the project

This is the first project completed by the Institut Balear de l’Habitatge – IBAVI (Balearic Institute of Social Housing) that continues the Life Reusing Posidonia research line in Formentera, in this case adapted to the Mallorca resource map.

Date

  • 2019: Construction

Stakeholders

Location

Continent: Europe
Country/Region: Spain

Description

Marès stone, the industrialized material with the smallest ecological footprint in Mallorca, is the material used to built all the walls of the 3-storey high building. The objective is to demonstrate that the construction of load-bearing walls with this material, abandoned in the structural use of multi-family buildings for the last 30 years, allows compliance with current regulations, the Sustainable Development Goals and recovering its own material culture.

The CO2 emissions embedded in the facade construction system are 31,62 kg/CO2 per m2. If the façade had been solved using a conventional solution, the emissions would be 126,04 kg/CO2. In other words, the pollution produced during the construction of the façade has been reduced by 75%. This approach has been extended to all elements of the building. Passive measures in the summer season have been prioritized, introducing inertia as a basic element of temperature regulation.
The building is located in Son Gotleu, which began to develop in 1943. Initially, the urban fabric combined the typologies of closed blocks with one floor or two floors terraced houses with a patio, with isolated single-family houses. During the 60s, with the aim of accommodating the workers arriving from Spanish mainland, these single-family houses were replaced by blocks following the line of the modern movement, built in the cheapest way possible that have become, eventually, a source of social conflicts. In fact, Son Gotleu is one of the neighbourhoods with the highest index of social vulnerability and concentration of population with few economic resources. This conflict is another collateral effect of mass tourism in the 1960s.

The project recovers one of the best features of the area: the small terraced houses built in marès, the local stone, and revealing the map of resources of the island, which is once again economically viable in the 21st century thanks to the thermal and acoustic of the technical requirements and the different European directives. The climate emergency makes it possible to reuse those systems that would have prevented such a climate crisis.
Marès stone, the industrialized material with the smallest ecological footprint in Mallorca, is the material used to build the 3-story high building, except for the elevator shaft, made of white reinforced concrete to comply with the earthquake resistant regulations. The construction system is the same as the one used by Jørn Utzon in Can Lis in 1972: 20 cm internal load-bearing walls and a 10 cm external rain wall. In order to meet current habitability requirements, a 10 cm recycled cotton insulation has been incorporated into the air chamber, protected with a breathable waterproof sheet, low-emission glass with watertight FSC-certified wood carpentry, and BCN roller blinds have been installed.

The distribution of the five houses, takes advantage of all possible buildability by using the duplex typology on the right side of the staircase, where the two houses on three floors ara placed like a Tetris. On the left side of the staircase there are three simplex dwellings, one per floor. The houses are peasants and enjoy cross ventilation.

The building is A energy class, and the production of ACS is carried out aerothermal pumps, supported by a battery of photovoltaic panels.