By: Lisa Voigtländer & Sung Bok Song
This project focuses on complementary wood architecture for sustainable urban densification in Tampere’s city district Tammela in Finland. Tammela had been chosen for an urban densification pilot project site, supporting the prospective developments and increasing population of Tampere city center. Moreover, there are many potential spaces to build new housing on the rooftops in Tammela. Emerging from those identified spaces for densification this project offers an infill solution by applying pre-manufactured housing units designed by Kerto LVL. The design presents an extension, which is placed on top of an existing concrete element building from the 60´s, a building typology that can be found in many cities around the world.
A significant part of the design is the proposal for a conceptual idea of a wood construction system of prefabricated, customized three dimensional units and their assembly at site. In combination of today´s common application of Building information technology (BIM) software, these prefabrication options could be integrated and coordinated already during the design process. Anticipating future possibilities of that method could result in an efficient production of unique, customized architectural housing design.
1) Design Ideas
- “Old and New”: Adapting the new building structure to the existing buildings, their edges and masses. Designing the new structure in relation to the existing one but as well balance it by developing new spatial expressions and contemporary appearance of the architecture.
- “More and Less”: A way to balance an efficient utilization of the infill spaces with a deliberate approach to improve the living and spatial qualities of the site.
- “Outside and Inside”: The outside, meaning the facades facing the streets adapting more to existing buildings with their white, plastered facade walls and straight shape. In the inside, yard facing direction appears wooden cladding, for a cozier and warmer atmosphere of the inside. To balance the two sides, wooden materials as well appear on the outside facade, for example the window frames, bay windows or shading elements.
- “Open and Close”: Big windows and opening options of the apartments, providing natural light and a close relationship to the outside, which can be balanced with shading elements to adjust open and closeness as pleased, for sun and especially sight protection.
- “Common and Private”: The semi-private terraces on the rooftops are providing variations of outside spaces to integrate private and common.
2) Strategic objectives
- Developing a related structure for the two attached buildings and take advantage of the whole connected rooftops located at the site.
- Joining the new structure through the existing staircases with the existing buildings, but also add one extra staircase for separate access and fire safety purposes.
- Reintegrating the community saunas to the new apartment structure, of interlocking duplex apartments.
- Opening a passage in form of an alley to connect all staircases and the entrances of the new houses with each other and with the new proposed roof garden on the southern rooftop.