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Day: April 9, 2026

HOME ADDITION COST GUIDE 2026

Home addition cost guide San Mateo County 2026 — new room addition with vaulted ceiling and floor-to-ceiling windows completed on the Peninsula

A home addition in San Mateo County is the highest-investment project most Peninsula homeowners undertake — and the one where the gap between an honest quote and an incomplete one is widest. Understanding what drives cost before you talk to a contractor is the difference between a budget that holds and one that doesn’t. According […]