High-Rises Riebeckplatz, Refurbishment
Halle a. d. Saale, Germany
2007
Competition: 2nd prize

Headquarters of the
Volkswohl Bund
Insurance Company
Dortmund, 2007
Competition: 3rd prize

Burj Al-Taqa - Energy Tower
Concept 2006/2007

Twin Towers
Qingdao, China
2003
Competition

Tower 24
Frankfurt a. M.
2001
Competition: purchase

RWE Tower
Dortmund, Germany
2005 completed
Competition: 1st prize

Harenberg Publishing House
Dortmund
1994 completed