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September 2026 Building Permits

Official permit data from Cambridge— updated Mon, Wed & Fri from the county permitting office.

Cambridge, MA issued 515 building permits in September 2026, down 4% from the prior month. The most active zip code was 02138 with 190 permits. Electrical was the top permit type, making up 36% of all permits issued.

Permits issued
515
vs. prior month
-4%
538 last month
Most active zip
02138
190 permits
Top permit type
Electrical
36% of total

Permit activity by zip code

Top 10 zip codes by permit volume — September 2026

02138
190
02139
145
02140
81
02142
54
02141
44
02143
1

Permits by type

September 2026 · Cambridge, MA

Electrical
186 (36%)
Building: Short Form
83 (16%)
Plumbing
40 (8%)
Asbestos
30 (6%)
Mechanical
30 (6%)
Gas
29 (6%)
Sheet Metal
25 (5%)
Building: Alteration and Addition
24 (5%)
Roof
24 (5%)
Sprinkler and Standpipe
15 (3%)
Demolition
9 (2%)
Solar Installation
6 (1%)
Application to Modify Building Plans
4 (1%)
Building: New Construction
4 (1%)
Siding
3 (1%)
Signs
3 (1%)

Other months — Cambridge

August 2026July 2026June 2026May 2026
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