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A homeowner in San Francisco recently called us after receiving three wildly different bids for the same 400-square-foot addition – one was nearly double the others. At Rhino Builders, we’ve

ADU Construction Cost in Bay Area (2026) typically ranges from $250,000 to $450,000 for a fully permitted, detached unit, depending on size, site conditions, and finish level. At Rhino Builders, […]

ADU Construction Cost in Bay Area (2026) typically ranges from $250,000 to $450,000 for a fully permitted, detached unit, depending on size, site conditions, and finish level. At Rhino Builders, […]

At Rhino Builders, we’ve been helping clients navigate How to Choose a Bay Area General Contractor for years of experience across remodeling, additions, and structural upgrades. We’ve noticed most homeowners