"Hoehler + Partner LLC Architects and Engineers have been operating for over 41 years and have offices based in Muscat, Hamburg, Aachen, Munchen and Frankfurt. Our Muscat office was established in 2009, through a partnership between Ernst Hoehler and Muhammad Al Salmy. The partners combine German architectural standards with traditional Omani elements in all of their designs."
Source:
Hoehler + Partners. "About." Accessed September 16, 2016.