Cambridge Massachusetts Trade Historic and Inspection Guide

Cambridge electrical, plumbing, gas, building, zoning, historic, conservation, demolition, roof, siding, solar, and tent projects should be coordinated before work begins.

Permit takeaway

Cambridge uses an online permitting system for building, electrical, plumbing, and gas permits, with building applications available for new construction, additions, alterations, roofs, siding, solar, and tents.

Zoning and placement

Historic districts, neighborhood conservation districts, landmarks, preservation restrictions, and structures over 50 years old can require Historical Commission approval before demolition or certain exterior work.

Building and trade review

Cambridge inspectors follow permits from application through rough and final inspections, and utility work must be signed off before related building steps can be approved.

Call before applying when

Call before applying if the project includes electrical work, plumbing, gas, roof, siding, solar, tent, demolition, exterior changes to an older building, or work in a historic or conservation district.

Documents to prepare

• Online application
• Trade permit materials
• Product specifications
• Historical Commission approval when applicable
• Final cost affidavit when required

Inspection planning

• Apply online
• Coordinate trade permits
• Schedule rough inspections
• Obtain utility signoffs before building approval
• Request final inspection

Official sources

• Cambridge Building Electric Plumbing Permits
• Cambridge How to Apply
• Cambridge Building Permit FAQ

This guide is a planning summary. Always verify the current requirements with the local office before starting work.