Building costs more than most people expect. Here's an honest look at where every dollar goes — so your first real number isn't a gut punch.
Trying to save by building smaller? Cost per square foot usually goes UP as the house gets smaller. Here's the math nobody explains.
A straight-answer guide to what an accessory dwelling unit really costs to build in Southeastern Massachusetts in 2026 — real price ranges, what drives the number, the new statewide by-right law, and timelines.

