Extension of Laboratory Building

An existing ensemble of buildings belonging to the State Office for the Environment in the rural Weilheim alpine foothills is being expanded to include a laboratory building in timber construction.

Project description

The LfU Wielenbach was founded almost 100 years ago as the ‘Royal Bavarian Fish Farming Research Station’ and is thus the oldest institution of the State Office for the Environment. Today, it employs an interdisciplinary team of 50 staff who investigate fisheries issues and use laboratory facilities.

The existing laboratory building from the 1980s, a two-storey service building with a north-south ridge orientation, is part of a rural ensemble. The building, which has a full basement, contains functional and technical rooms as well as sanitary facilities in the basement and laboratory and office space on the ground and upper floors. The new extension adds to the existing building with a freestanding structure measuring 12.5 x 12.5 m and a connecting structure. Neither part has a basement and both are timber constructions. The angled arrangement of the extension in relation to the existing building responds on the one hand to the space-defining aspects of the property and the existing vegetation and on the other hand to a required minimum distance to the neighbouring weather station to the south.

The construction is essentially a solid wood structure. The ceilings and load-load-bearing walls are made of cross-laminated timber elements, while the roof structure is of a traditional carpentry design. The foundation of the new building consists of a reinforced concrete floor slab. The exterior and interior appearance of the building reflects the materiality of the wood, with the façade consisting of profiled untreated spruce formwork. In line with the energy concept, the building meets passive house standards. Due to the low heating requirements, the extension can be supplied by the existing heating system.

Project data

Client
Staatliches Bauamt Weilheim

Planning
plan-stelle, stieglmeier architekten
Staff: Manfred Stieglmeier, Simone Matschi (Projektleitung), Christoph Ammer

in cooperation mit arcs Architekten, München

Location
Demollstraße 31, 82407 Wielenbach

Data
Floor space (DIN 277): 390 m2
Finalization: 01/2023
 
Photos
Antje Hanebeck

Photo gallery