Ölzbündt, Dornbirn
Ölzbündt, Dornbirn

Project Information


Kaufmann Anton, Reuthe und Gerold Ölz, Dornbirn



Project facts
n.b.ar. 1.900,00 m², GFA 2.300,00 m²,
GBV 5.475,00 m³


Text Hermann Kaufmann + Partner ZT GmbH,
Translation Bronwen Rolls

Photo Ignacio Martinez

Project Stakeholders
  • Structural Engineering
    merz kaufmann partner gmbH, Dornbirn
  • Heating Ventilation and Sanitary Planning
    GMI Ingenieure, Dornbirn
  • Electronics Planning
    Hecht Elektroplanung, Rankweil
  • Building Physics/Acoustics
    DI Dr. Lothar Künz ZT GmbH, Hard

Ölzbündt, Dornbirn

The long structure lies on a narrow plot of land on the north-eastern outskirts of Dornbirn, in Austria. The square, elongated, three-story building is clad with larch which emphasises the structure’s volume. The balconies on the western side, along the tree-lined walkways, are made of slender steel struts with timber planking, differentiating the main structure and adjacent outer spaces. The stairway is the third structural element and its individuality is created by its glass shell.

A single family residential unit that is integrated in the large overall shape occupies the southern segment. Exterior space was added to the building in the form of multi-level balconies. On the inside, the residential floor section is protected against fire and acoustically insulated by a cement wall. The twelve apartments are compactly organised. Each of the units has either two or three rooms and all apartments feature a large room that makes use of the full depth for cooking, dining and living.

The narrow tall windows, with their deep sills and the almost 0.5 meter thick outer walls, give the building a feeling of being a vast space despite the cost-efficient construction method that was used. Timber is not intended for provisional purposes here, it is meant for sustained use. In addition to the larch used on the weather boarding, the building also features a canopy roof that acts as protection against the weather for the facade, in order to prolong its life-cycle without using protective treatments. Access to the subterranean parking garage and the stairs is possible from the north. However, a path leads from the uppermost tree-lined walkway, over a staircase and bridge, to the south as well. The building is also linked with its surroundings on this side.

The three-story, integral structure is primarily made of timber components that are finished as prefabricated elements by a workshop, for a grid measuring 2.40 meters. This allowed them to be assembled quickly on-site. Bonded timber panels, three-layer panels, plywood and solid timber planking were employed according to their structural characteristics, weather resilience and even design criteria. Economic considerations also played a major role in these decisions. The hollow, box-shaped roof elements were filled with gravel for sound damping and plasterboard panels were used on the interior. Heating elements were not necessary due to the good heat insulating properties of the outer walls. No more then 26 kWh/Btu per square meter per year is necessary since the building features individually adjustable ventilation, heat exchangers and uses residual energy efficiently.  Photovoltaic panels on the roof generate hot water.

The energy concept makes use of the very well insulated, sealed building shell, making it possible to heat incoming air even if it is a minimal amount of air that is circulated. Compact, individually adjustable devices control the ventilation and heating in every apartment. Fresh air is heated to minimum of 0° centigrade by the geothermic heat exchanger in each building. Up to 60 per cent of the residual heat can be recycled via a plate heat exchanger. A small heating pump increase the incoming air temperature to a maximum of 40° centigrade. However, it is still possible to vent additional air via the windows.


Project Details


  • Haus der Zukunft – BM für Wirtschaftliche Angelegenheiten
    2000 (Preis)
  • Arge Alp Umweltpreis silber
  • Vorarlberger Hypo-Bauherrenpreis
  • Holzbaupreis Vorarlberg
    1997 (Preis)
  • Wohnalage Ölzbündt
    ZN B-006, Mehrgeschossiger Holzhausbau, S.123, 124
  • Wohnungsbau in Dornbirn
    ZN Z-001, baumeister, 10/1997, S. 18-23
  • Subtile Architektur einer hölzernen Welt
    ZN Z-005, architektur & wirtschaft, 12/1997, S.103-107
  • Baukasten für Architekten
    ZN Z-007, architektur aktuell, H. 209, 11/1997, S. 98-107
  • Passivhaus
    ZN Z-008, Translation, Dokum. Sommerakademie Murau 97, S. 28-29
  • Die Fenster beleiben zu
    ZN Z-009, Das Haus, 3/98, S. 64/65
  • Schritt für Schritt
    ZN Z-010, architektur, holzbau, 4/1998, S.40-47
  • Wohnalage Ölzbündt
    ZN Z-015, Pro Holz Österreich, 1.Aufl.98, S. 44-47
  • Wohnanlage Ölzbündt in Dornbirn
    ZN Z-016, Architektur + Wettbewerbe, 175, Sept. 1998, S. 30-35
  • Ein Holzbau in Vorarlberg
    ZN Z-017, Jan Capol, Hochparterre, 03/1998, S. 12-17
  • Mehrgeschossige Wohnanlage in Holz- und Passivhaus- Bauweise
    ZN Z-018, Projektreport 8
  • Housing Project Ölzbündt
    ZN B-016, architecture in austria, S.306-307
  • Wohnalage Ölzbündt
    ZN B-017, Wohnmodelle Bayern, S. 36,37,45-49
  • Wohnanlage Ölzbündt in Dornbirn
    ZN Z-002, DBZ, 4/99, S. 37-44
  • Drei Geschosse mit Passivhaus- Standard
    ZN Z-003, Der Zimmermeister, 7-8/1999, S.40-43
  • Ölzbündt
    ZN Z-011, - Wärmebrücken, Luft- u. Winddichte, Energie Tirol 1999, S. 63
  • Mut für Innovation
    ZN Z-004, Der Zimmermeister, (A), 4/2000, S. I
  • Holzbau hat die nase vorn
    ZN Z-006, Mikado, 12/2000, S. 64-65
  • Wohnanlage Ölzbündt
    ZN Z-013, Haus der Zukunft, 2000, S. 6-7
  • Longements collectifs experimentaux
    ZN Z-019, sequences bois, 32 /2000, S. 14-15
  • Haus der Zukunft 2000 – Preisträger, Auszeichnungen, Anerkennung
    ZN Z-070, Haus der Zukunft, Impulsprgramm Nachhaltig Wirtschaften, 2000, S. 4-9 und 20-21
  • Logements collectivs a Dornbirn
    ZN B-019, Dominique Gauzin-Müller, L' Architecture Écolo Gique, S 142-147
  • Kaufmann
    ZN B-020, Teske / Uhlig / Kupferschmid, Preiswerter Wohnungsbau in Österreich, S. 146-149
  • Purismus made in Austria
    ZN Z-014, Architektur & Wohnen, 3/2001, S. 163-164
  • Mehrgeschossiger Holzbau – WA Ölzbündt
    ZN Z-077, Holzbulletin 59/2001, Mehrgeschossiger Holzbau S 954-957
  • Analyse WA Ölzbündt
    ZN Z-079, Sabine Ziegler, Zulassungsarbeit
  • Kostenlose Wärme
    ZN Z-089, Doris Kornitzer, Wohnforum Nr. 15/24, Raiffeisen Bausparkasse, S. 7
  • Neubau Wohnanlage Ölzbündt
    ZN Z-091, Baukunst und Energieeffizienz, Symposium 2002, S. 45-51
  • Résidence Ölzbündt, Dornbirn
    ZN Z-098, Dominique Gauzin-Müller, A+ Arcitecture+Urbanisme+Design+Art
  • Résidence expérimentale Ölzbündt à Dornbirn
    ZN Z-100, d´Architecture Nr. 128/April S.33
  • Wohnalage Ölzbündt
    ZN B-034, Bernhard Kolb, Nachhaltiges Bauen in der Praxis, S. 131-133
  • Holz – ein universeller Baustoff
    ZN Z-108, Hermann Kaufmann, Detail, Bauen mit Holz 1/2 2004, S.14
  • Holzspanplatte
    ZN B-027, Ambrozy / Giertlova, Planungshandbuch Holzwerkstoffe, S. 160-161, 186-187
  • Ölzbündt Dornbirn
    ZN B-033, Jakub Kyncl, Living in the city, Era Group, S. 124-127
  • Residential projekt, dornbirn
    ZN Z-118, World Architecture, 8/2005, S. 52-57
  • Economiser l´energie, ne pas morceler les espaces, ne pas multipier les materiaux
    ZN B-037, Ouvrage publics & Cout Global, S. 72-73
  • Energieeffizientes Bauen und Sanieren in den Alpen
    ZN Z-125, Energieeffizientes Bauen und Sanieren in den Alpen, S. 71, S.75, S. 80
  • WA Ölzbündt
    ZN B-072, Architektur in Österreich im 20. und 21. Jahrhundert, S. 369