City of Cambridge Inspectional Services Department (ISD)
AI-researched from the official website · pending reviewer verification- Address
- 831 Massachusetts Ave., 1st Floor, Cambridge, MA 02139
- Phone
- 617-349-6100
- Hours
- Mon 7AM-6PM; Tue-Thu 7AM-3:30PM; Fri 7AM-12PM. Counter hours: Mon 7:00-8:30am and 3:30-5:30pm; Tue-Thu 7:00-8:30am and 2:30-3:30pm; Fri 7:00-8:30am and 11:00am-12:00pm
- Online portal
- cambridgema.portal.opengov.com/
- Building code
- 780 CMR 10th Edition (based on 2021 IBC/IRC with Massachusetts amendments; Massachusetts Residential…
- Jurisdiction
- City in Middlesex County · Boston metro
Researched October 13, 2026 from the office's official website. Offices change hours and fees; confirm before you visit. See an error? Report it.
Permit types issued
- Building Permit
- Demolition Permit (buildings and structures)
- Electrical/Wiring Permit
- Gas Permit
- Mechanical (HVAC) Permit
- Plumbing Permit
Fees, review times and which of these your project needs are in the .