Building AdditionNew York CityChicagoLos AngelesAustin
Building Addition Projects
7 building addition projects across supported cities. See real permit-backed costs and licensed businesses.
0 projects0 businesses$12,000 – $79,323 range
What Does Building Addition Cost?
Based on real permit filings — actual project costs, not estimates.
Home Addition: Roof Parapet & Patio Cover in Canoga Park
Building Addition
$15,000
July 16, 2026
ADU Addition at 5216 N Cleon Ave, North Hollywood
Building Addition
$50,000
July 9, 2026
Home Addition at 3029 S Yale Ave, Venice
Building Addition
$50,000
June 15, 2026
3 more projects with pricing in Building Addition
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