Shed Installation Permits in Brockton

Local Rule

City of Brockton Building Department; Brockton Code of Ordinances Chapter 4; Massachusetts State Building Code 780 CMR

Brockton requires a building permit for a shed 120 square feet or larger, a stricter local threshold than the 200-square-foot exemption found in the base Massachusetts State Building Code. Sheds smaller than 120 square feet are exempt from the building permit but must still comply with the city's zoning setback rules; if a shed doesn't meet setback requirements, approval from the Zoning Board of Appeals is needed. A permitted shed requires a site plan showing placement, setbacks, and lot lines, along with construction drawings and contractor license and insurance documentation. Adding electrical wiring always requires a separate electrical permit regardless of shed size.

Source · Verified September 2026

Brockton Building Department

Hours and procedures can change — call ahead to confirm.

How This Compares to Plymouth County

Brockton's own rule is shown above (No permit under 120 sqft). Here is the separate rule that applies at the county level, for context:

Municipal — administered individually by each city/town; the

Plymouth County is one of the few Massachusetts counties not formally abolished, but its remaining functions are limited to the Sheriff's Office and the Registry of Deeds. Zoning and building permits are handled entirely at the municipal level.

See the full county page

Nearby Cities with Verified Rules

Other cities near Brockton with a confirmed shed installation rule:

FAQs

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