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No longer exists
This structure no longer exists today – this entry tells its story.
© A.Savin · CC BY-SA 3.0

Haus OBU

Eight ivy-covered timber domes made up the experimental home and studio of architect Erwin H. Zander in Köln-Hahnwald, linked by a Dani Karavan water installation. Demolished in 2011.

The name OBU was more than an abbreviation: it was an address. It derived from the then "Oberbuschweg," which was later renamed "Unter den Birken."

At a Glance

Type
Residence and studio (no longer extant)
Location
Villa suburb of Köln-Hahnwald, Rodenkirchen district
Architect and client
Erwin H. Zander
Construction period
1976 to 1982
Construction method
Eight lightweight domes above a masonry base level
Installation
Water basins and walkways designed by Dani Karavan
Demolition
Autumn 2011
Did you know?

The name "OBU" comes from the former address "Oberbuschweg", and the house's eight ivy- and vine-covered wooden domes were handmade as lattice shells, which is why construction took six years.

A House Made of Domes

Zander designed the building as his own home and studio. The experimental design consisted of eight domes overgrown with ivy and grapevines. They were built as timber lattice shells, made by hand and at low cost. This method of production is the reason the construction took six years.

Layout

The masonry base level housed the service spaces: dressing rooms, bathrooms, utility rooms and cellars. Above, beneath the domes, were the living rooms, bedrooms and the studio. Some of these rooms opened up to views of the sky. At the center was a two-storey living hall that remained free of built-in fixtures and opened onto the garden across a wide expanse.

Water as a Connecting Element

The individual domes were linked by an installation by the artist Dani Karavan. It consisted of water basins and walkways and ran through both the interior and the outdoor space.

Significance and Demolition

The house was regarded as a masterpiece of experimental, postmodern and at the same time archaic, nature-oriented architecture. In Germany, the building had no successors. In autumn 2011, the new owners had the building demolished.

Timeline

  1. 1976
    Construction begins on the residential and studio house designed by Erwin H. Zander
  2. 1982
    House completed after six years of construction
  3. Herbst 2011
    House demolished by the new owners

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Auto-generated, last verified: 2026-10-23

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