Nathan Winslow Block, Facade and Lobby Renovation

Long occupied by one of Portland’s largest law firms, 245-251 Commercial St., first renovated by CHA Architecture in 1985, was sold to a new owner and renovated for offices, retail, and a restaurant.

Working with the city Historic Preservation Commission, CHA Architecture settled on a light-touch exterior façade renovation with new windows and color schemes.

In the lobby, the exposed brick side wall was retained and a new, sculptural light wall adds interest while providing sound insulation from the restaurant next door. New carpet, wallcoverings, lighting, and an oval ceiling panel add modern notes that contrast with the traditional exterior. Four floors of offices, corridors, and bathrooms were renovated and repainted.