Do You Need a Permit in Massachusetts to Demolish a Shed or Deck?
Whether you need a permit to demolish a shed or deck in Massachusetts depends on the size of the structure and your specific town's rules. Here's the definitive breakdown based on Massachusetts State Building Code (780 CMR):
Sheds:
- Under 120 sq. ft: Generally exempt from a state building permit, but often requires a local Zoning Permit or "Shed Registration" to ensure it meets property line setbacks.
- 120 - 200 sq. ft: Requirements vary by town. In Weymouth and Hingham, these may be exempt from building permits, but in towns like Duxbury, a permit is mandatory.
- Over 200 sq. ft: A demolition permit is typically required from your local Building Department.
- Sheds with electrical or plumbing: A permit is required regardless of size, and utilities must be capped by a licensed professional.
Decks:
- Demolition: Some towns require a "Demolition/Removal Permit" even if you aren't rebuilding. This ensures the site is left in a safe condition and that structural connections to the main house are handled correctly.
- Decks attached to the home's structure — Consult your local Building Department before any work begins.
- Rebuilding: A construction permit is required for all new deck builds.
Town-Specific Rules:
Hingham: Strictly enforces permits for structures over 200 sq. ft. Fines for unpermitted work can reach $1,000/day.
Cohasset: Requires pre-permitting meetings for most demolition projects.
Duxbury: Requires a Zoning Permit for sheds even under the 200 sq. ft. limit ($45 fee).
**Laws/Codes are subject to change so always check with your local town**
Important: Demolishing a structure without a required permit can result in fines and complications when you sell the property. Clean Slate always advises clients to check with their local Building Department before we start any demo work.
Does Clean Slate pull permits for shed demolition?
We advise on what's required and help clients understand the process, but the homeowner or property owner is responsible for obtaining any required permits.
Can I demolish a shed in my backyard without a permit in Hingham, MA?
If the shed is under 200 sq. ft., you generally do not need a demolition permit in Hingham. For larger structures, contact the Hingham Building Department before proceeding.
