Terrafirma Building

We're Terrafirma, a company that develops and builds fine new residences and commercial buildings. Our home is Portland Oregon, a city with a history of beautiful architecture. Our purpose is to continue that history: to craft buildings that leave clients and neighborhoods absolutely delighted with the finished product, and that contribute new beauty to the region's aesthetic. David Hassin, Terrafirma's President, founded the company in 1990, bringing 25 years' experience in the building industry. He is supported by Terrafirma's ambassadors: experienced office and field staff, who share the company vision. We work with families to build dream homes. We partner with investors to develop real estate into valuable long term assets. We serve commercial clients to build or renovate both residential and commercial buildings. Our services are diverse, but our philosophy and approach are always the same. Terrafirma operates from three core values: honesty and integrity in all aspects of our company; responsibility to the client and the community in which we live and do business, and lasting relationships. Finally, and most importantly, we give back. Terrafirma is proud to be involved with and support local, socially and environmentally responsible organizations such as The Rebuilding Center and Basco-Mulligan Foundation.