Nilsson + Siden Associates, Inc. (N+SA) is a multidisciplinary architectural firm located in Salem, Massachusetts. With LEED-accreditied staff, N+SA provides environmentally-conscious architectural/planning services for commercial,
institutional, medical, and municipal projects. Sample
project types include university athletic, classroom and
housing facilities, hospital facilities and master planning,
medical offices, laboratories, branch banks, museum renovations
and urban planning. We pride ourselves on the quality
of service and attention to detail every project receives.