Public Buildings

Civic Center

Innerbraz, Österreich

View from Northeast 1 | View from Northeast
With various purposes in mind and housing administrative and educational facilities, the building is a vibrant new center for the rural municipality
Design: The civic center features rooms for the municipal administration, childcare, and rehearsal rooms split over three storeys. Answering the specific topographical situation of the site with a precise placement, the building is surrounded by generous spaces for private and public uses (school yard, playgrounds, public plaza).

Wood: The building was realized with a reinforced steel structure with high-quality timber elements, isolated and prefabricated, for the exterior walls. The interior surfaces, including the furnishing, are clad with untreated wood from the local forests, producing a pleasant look and feel. The exterior sidings, made of Silver fir, result in an unobtrusive appearance, while the differentiated openings in the facade and varied vertical placement of the timber slats give every side of the building its own face.

Energy: The compact building manages to reach very high energy efficiency thanks to its mechanical ventilation control and high-quality glazing (passive house). In cooperation with the Energy Institute of Vorarlberg, the planning and construction was guided by the service manual “Sustainable: Municipal Building”, and the building was eventually awarded with 946 points (out of 1000) in its municipal building certificate.
View from South 2 | View from South
Rehearsal room 3 | Rehearsal room
Staircase 4 | Staircase
Basic information
Year of Completion |  2017
Investor |  Municipality of Innerbraz (AT)
Architecture |  Arch. Dipl.-Ing. Johannes Nägele, Vandans (AT)
Structural Engineering |  Amiko Bau Consult, Bludenz (AT)
Construction Time |  16 months
Number of floors |  3 + attic
Plot size |  8 149 m²
Gross floor area |  861 m²
Construction Costs (netto) |  2 774 €/m² GFA (total costs including fees)
Awards |  Holzbaupreis Vorarlberg 2017 (Nominated)
Photography |  Pictures 1-4: Christian Flatscher, Innsbruck (AT)

Technical aspects
Concept |  Timber frame construction, reinforced steel ceilings, solid timber roof
Woodworking |  Holzbau Gerhard Sutter, Ludesch (AT)
Origin of Timber, Certification |  Alpine Region (Silver fir)
Traceability of Timber |  Yes
Forestry Value Chain |  All commissioned companies are located within 30 kilometers
Energy Efficiency Standard |  Passive house, municipal building certificate (Energy Institute of Vorarlberg)
Energy Systems |  Mechanical ventilation control with heat recovery, district heating (municipal wood chip heating facility), photovoltaics (shared with school)
Energy Consumption  |  10 kWh/m²a (heating energy demand)
U-Value Wall | Roof | Floor | Windows (W/(m²K)) |  0,12 | 0,11 | 0,17 | 0,8

Cost Saving

Floor Plan (Administration, Ground Floor) Floor Plan (Administration, Ground Floor) Floor Plan (Childcare, Downstairs  Level) Floor Plan (Childcare, Downstairs  Level) Cross Section Cross Section