Stefan Forster GmbH is an architecture firm based in Frankfurt am Main, Germany, founded in 1989 by Stefan Forster. Initially set up in Darmstadt, the office moved to Frankfurt in 1995, establishing itself as a significant force in residential architecture. As of 2024, the firm employs about 30 architects and is led by Stefan Forster and Florian Kraft. Their main office is located at Carl-von-Noorden-Platz 5, in Frankfurt.
The practice’s core focus is on housing—ranging from high-end apartments to affordable rental units and large city blocks. They are also active in remodeling office and administrative buildings, as well as transforming entire housing estates. Their client base includes municipal housing associations, cooperatives, and private developers. Over its three decades, Stefan Forster GmbH has been recognized for raising the quality of urban residential environments, frequently emphasizing mixed-use developments and a careful distinction between public and private spaces.
Projects exemplifying their approach include the revitalization of the Platensiedlung residential area and the Mainzer Landstraße apartment complex, where 117 new apartments have replaced obsolete office space. Other prominent works are the transformation of the 1950s Philosophicum building and residential projects characterized by robust brick facades that have proven durable over time.
The firm’s service scope includes project planning (work phases 1–5), BIM management, and master planning. In response to recent economic shifts in construction, they have increasingly focused on remodeling and office conversions. Stefan Forster GmbH is widely recognized for its pragmatic, context-aware architecture that directly addresses the evolving needs of urban living.