Addition Cost Per Square Foot: Greater Boston Pricing Guide
In Greater Boston, most professionally built home additions land between $250 and $600+ per square foot all-in, and the final number usually comes down more to structural scope, permitting, and MEP tie-ins than to raw square footage. If you're weighing a room addition in Arlington or Cambridge, that's the number to keep in mind before […]
Second Story Addition Cost in Boston: A 2026 Guide
In Arlington, Cambridge, and the other older neighborhoods around Boston, a full second-story addition realistically costs $250 to $500+ per square foot, with many full projects landing between $200,000 and $500,000 because of older foundations, tighter sites, and stricter code review. If you're planning to stay in your home but need more space, that price […]