Second story additions in Wallingford

Wallingford is one of Seattle's great streetcar suburbs, and nearly half its houses were standing before 1939 — a neighborhood typified by 1920s box houses and bungalows on close-set lots between Gas Works Park and Green Lake. The two-story Seattle Box and the one-story Craftsman bungalow sit side by side on the same blocks, which is exactly why a second-story addition looks so natural here: the bungalow that grows a floor is simply catching up with the house next door.

Doing that well is a craft problem as much as a structural one. A Wallingford pop-top has to match pre-war detailing — the eaves, the window proportions, the siding lines that make these streets read the way they do — so the finished house looks like it was always two stories. Underneath the detailing, the engineering is thoroughly modern: Seattle's seismic codes require the new level to be designed with shear walls and a continuous load path, and a 1920s foundation gets a structural assessment before design, because houses of this era were not built expecting a second floor and many older foundations need anchorage or reinforcement first.

Pacific Pro Group handles the whole sequence — design, structural engineering, the SDCI permit, construction — as one team, and the build method is made for this climate: the new floor is framed and fully weatherproofed above your existing roof before the old roof is removed, so the house below never sits open to Seattle weather. Your family stays home, in a sealed house, while Wallingford gets one more proper two-story.

Neighborhoods we serve in Wallingford

ZIP codes served: 98103