the hillsboro civic center is a government-built, mixed-use development in downtown hillsboro, oregon, united states. the development includes the city hall for the county seat of washington county, located west of portland, oregon. covering , the civic center has a total of over in the complex. the total of six stories for the main structure makes the building the tallest in the city, tied with tuality community hospital. in addition to government offices, the civic center includes retail space, public plazas, and residential housing. the complex was built to centralize city government functions under one roof.