Pacific Coast Architecture Database (PCAD)


Mercer Island Presbyterian Church, Mercer Island, WA

ID: 10519
Construction Date: End Date: 1962
Notes: Alteration Note: This church's thin concrete shell, hyperbolic paraboloid roof was one of the most daring forms developed by Thiry. The roof was originally sheathed with Neoprene-Hypalon elastomeric roofing supplied by Gaco Western, Incorporated of Seattle, WA. This coating was removed during a renovation that finished in 2001 and replaced with a copper roof. Broweleit Peterson Hammer Architects of Lynwood, WA, supervised the renovation, while Crownover Construction was the Building Contractor.
Building History: Paul Thiry designed this church with a hovering thin shell concrete roof; this expressionistic element--composed of 16 hyperbolic paraboloids--covered a 3,700-square-foot, hexagonal sanctuary with seating for over 350. The sanctuary's south side faced a garden, while a view of Lake Washington dominated the northern exposure. Like many during the era, Thiry was experimenting with tilt-up concrete walls. Strand, Incorporated, served as the Building Contractor for the Mercer Island Presbyterian Church, completed in 1962 for a budget of $193,000.
Structure Size: Total Square Feet: 7800
Number of Floors: 1
Structure Type: built works - religious structures - churches
Locations: Structure:
3605 84th Avenue SE
Mercer Island, WA
map latlong or map of street number