County report · Massachusetts
Building Permits in Suffolk County, Massachusetts
Every building permit issued by the City of Boston — counted, valued, and sorted by trade. Free, and updated daily.
Source: City of Boston open data — approved building permits issued by the Inspectional Services Department. Source last updated: October 17, 2026 · Our last pull: October 18, 2026 · Figures are as reported by the City of Boston.
Coverage: this report covers building permits issued by the City of Boston (Inspectional Services Department). Suffolk County also contains Chelsea, Revere, and Winthrop, which publish their permits separately and are not in this feed, so totals here are Boston totals — labeled as such, never blended. Values are the declared project values applicants reported to the city, printed as reported; a Certificate of Occupancy restates its project's declared value, so one project's value can appear on both its building permit and its certificate.
PermitsByCounty data, Suffolk County (Boston), September 2026 · Source: City of Boston
Questions, answered from the data
How many building permits were issued in Boston in September 2026?
3,145 building permits were issued in Boston in September 2026, with a reported project value of $1,462,223,769, as reported by the City of Boston.
How many building permits were issued in Boston in the last 12 months?
36,367 building permits were issued in Boston in the 12 months ending October 2026 (October 17, 2026), with a combined reported project value of $12,753,401,142, as reported by the City of Boston.
What is the most common type of building permit in Boston?
Electrical permits are the most common classified type: 10,709 issued in the last 12 months (29.4% of all permits), as reported by the City of Boston.
Permits by month
| Month | Permits issued | Reported value |
|---|---|---|
| October 2026 (to date) | 1,749 | $1,275,889,072 |
| September 2026 | 3,145 | $1,462,223,769 |
| August 2026 | 3,111 | $1,859,231,839 |
| July 2026 | 3,384 | $1,085,476,907 |
| June 2026 | 3,059 | $958,191,841 |
| May 2026 | 3,053 | $620,350,351 |
| April 2026 | 3,186 | $937,358,273 |
| March 2026 | 3,154 | $715,010,910 |
| February 2026 | 2,605 | $659,490,811 |
| January 2026 | 2,601 | $1,114,299,617 |
| December 2025 | 2,782 | $1,008,179,086 |
| November 2025 | 2,795 | $738,914,998 |
| October 2025 (from Oct 17) | 1,743 | $318,783,668 |
October 2025 coverage begins October 17, 2025 (our first full pull); October 2026 is month-to-date.
Permits by trade — last 12 months
| Trade | Permits | Share | Reported value |
|---|---|---|---|
| Electrical | 10,709 | 29.4% | $682,274,000 |
| General & Other | 10,340 | 28.4% | $4,216,705,728 |
| Plumbing | 5,693 | 15.7% | $457,917,427 |
| Gas | 3,062 | 8.4% | $23,562,988 |
| Fire Alarm | 1,923 | 5.3% | $92,186,849 |
| Roofing | 1,702 | 4.7% | $186,253,035 |
| Solar | 1,462 | 4.0% | $69,975,718 |
| HVAC | 441 | 1.2% | $468,689,326 |
| New Construction | 380 | 1.0% | $6,523,551,439 |
| Signage | 308 | 0.8% | $5,815,486 |
| Fire Protection | 187 | 0.5% | $9,358,097 |
| Demolition | 113 | 0.3% | $16,385,395 |
| Fencing | 47 | 0.1% | $725,654 |
Biggest projects issued in October 2026
| Project (permit #) | Trade | Reported value | Issued |
|---|---|---|---|
| 421 Park DR #COO1902177 Retail, Offices, Research &; Development, Laboratory and Parking GarageCertificate for Base Building Co… | New Construction | $404,947,987 | 2026-10-16 |
| 252 Huntington AV #COO1905861 432 Residential Units w/Amenity, 3 Core Shells, Assembly Uses &; Parking GarageCertificate for;Huntingt… | New Construction | $166,732,282 | 2026-10-06 |
| 1-9 Harbor Shore DR #COO1902754 One Hundred Twenty Two (122) Residential Units, Shell Space for Commercial and Shell Space for Future Resta… | New Construction | $165,775,486 | 2026-10-06 |
| 175 N Harvard ST #COO1903720 Theater including Two Performance Spaces, Rehearsal Studios, Circulation and Office Space.Certificate for t… | New Construction | $131,491,730 | 2026-10-07 |
| 47-55 Lagrange ST #COO1404847 ;One Hundred Seventy Six (176) Residential Units, Retail Space And ParkingTemporary Certificate For One Hun… | New Construction | $64,914,137 | 2026-10-08 |
| 41 Lagrange ST #COO1850182 126 Residential Units with Amenity SpaceTemporary Certificate for Same - Expires on 11/16/2026ERT1306852 Is… | New Construction | $61,075,040 | 2026-10-15 |
| 17-25 Blackfan ST #COO1621036 ;Hospital;Temporary Certificate for Prep /Recovery Rooms, New IR/Procedure Rooms, Support Spaces, Level 3 S… | General & Other | $18,500,000 | 2026-10-01 |
| 222 Berkeley ST #ALT1879799 Wayfair (222 Berkeley St/500 Boylston St-Floors 2-5)= Office renovation including selective demolition, fra… | HVAC | $13,270,701 | 2026-10-02 |
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