Multistorey Buildings

Multi-family house Gapont

Triesen, Liechtenstein

Ansicht West 1 | Ansicht West
The latest timber construction technology has made it possible to build a building that integrates itself into the historic core of the village.
Design: The three-storey multi-family house is located on a hillside in the meadow in the centre of the village. The development of the levels in the dwellings reflects the outward rising terrain. The sleeping areas are offset by a few steps, which introduces a simple division of the rooms into day and night. The timber construction is inspired in its materialisation by the surrounding rural outbuildings.

Wood: The building is of bare solid construction, with basements and staircases made of insulating concrete. The solid timber construction (120 mm triple-laminated cross-laminated panels of large format) allows for a clean breakdown of the different structural functions and their easy decomposition. The facade, made of local larch, is untreated and has different natural greys depending on the direction of the sky. The solid wood walls are visible inside and treated only with a white glaze. The highly complex geometry could be precisely prefabricated and produced in just three days by digitally cutting large-format panels.

Energy: Gas heating, solar thermal and controlled ventilation with minimal installation and installation costs (wet cell ventilation system with flow through window).
Ansicht Süd 2 | Ansicht Süd
Höhenversatz zum Wohnbereich 3 | Höhenversatz zum Wohnbereich
Küche 4 | Küche
Basic information
Year of Completion |  2015
Investor |  Johann Frommelt, Triesen (LI)
Architecture |  Uli Mayer, Urs Hüssy Architekten ETH/SIA, Triesen (LI)
Structural Engineering |  Wenaweser und Partner Bauingenieure AG, Schaan (LI); Holz: XYLO AG, Schaan (LI)
Construction Time |  3 days (timber construction)
Number of floors |  3
Plot size |  2 082 m²
Gross floor area |  632 m² (GF SIA 416 base area), 816 m² (including garage)
Construction Costs (netto) |  2 218 €/m² (construction costs BKP2)
Awards |  German Design Award 2018, LIA Auszeichnung für Gutes Bauen in Liechtenstein

Technical aspects
Concept |  Solid wood, staircase and basement in insulating concrete, wood-concrete composite ceilings
Woodworking |  Frommelt Zimmerei und Ing. Holzbau AG, Schaan (LI)
Origin of Timber, Certification |  Home forest (CH)
Traceability of Timber |  yes
Forestry Value Chain |  All participating craft companies are from Liechtenstein
Energy Efficiency Standard |  Liechtenstein Building Act requirements for new buildings, Minergie standard without certification
Energy Systems |  Heating: gas (underfloor heating), hot water: solar collectors with gas auxiliary heating, heating, ventilation: wet cell ventilation system with flow through window
Energy Consumption  |  40.5 kWh/m²a (heating energy consumption)
U-Value Wall | Roof | Floor | Windows (W/(m²K)) |  0,15-0,21 | 0,16 | 0,24-0,38 | 0,6

Regional Wood Circular Economy