Cost of Modular Second Story Addition in MA
In Greater Boston, modular second-story additions commonly run $200 to $400 per square foot all-in, and most projects land between $150,000 and $300,000 once site work, craning, permits, and MEP tie-ins are included. The factory quote is only the starting point, because total project cost usually rises 30% to 40% after the house is prepared […]