# Building permits at 71a Williams St, Boston, MA

The biggest project within a quarter mile since May 1: a $300,000 alteration or repair at 117 Williams St, permitted Aug 13.

Three permits on record here. The newest, May 20: New house, 3 story, unit in basement. Within a quarter mile, the city has issued 42 more permits (39 projects) since May 1. One is for a new building, 510 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| May 20, 2026 | Electrical | New house, 3 story, unit in basement | $65,000 | [E1846881](https://nearbypermits.com/boston/permit/E1846881/) |
| May 4, 2026 | Fire systems | Install new fire alarm system | $10,000 | [EFA1845510](https://nearbypermits.com/boston/permit/EFA1845510/) |
| Nov 14, 2025 | New building | Proposed new 3-story, 4 family residence, with front &; rear decks and parking at the rear of property; as per plans. Parking accessed through proposed easement with 69 Williams Street.;[ePlan] | $1,699,683 | [ERT1613746](https://nearbypermits.com/boston/permit/ERT1613746/) |

## Within ¼ mi since May 1, 2026

42 permits in the circle. From our copy of the city's data (last 24 months).

### Next door (under 250 ft), 4 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | [74 Williams St](https://nearbypermits.com/boston/address/74-williams-st/) | 190 ft E | Electrical | Air source heat pump system connections to (1) condenser and (1) air handler suspended from ceiling above washing machine, work for 2nd Floor unit only. | $12,000 | [E1884019](https://nearbypermits.com/boston/permit/E1884019/) |
| May 28, 2026 | [16a Meehan St](https://nearbypermits.com/boston/address/16a-meehan-st/) | 140 ft S | Electrical | Replace wiring for storage unit receptacles. Replace All devices in storage units. Replace Breakers for storage units to Dual function type. Replace devices controlling sump pump. Meg test Switch legs and homeruns to Storage units. | $4,500 | [E1853760](https://nearbypermits.com/boston/permit/E1853760/) |
| May 22, 2026 | [16a Meehan St](https://nearbypermits.com/boston/address/16a-meehan-st/) | 140 ft S | Alteration or repair | Interior repairs due to water damage in Condominium Common Area. Replace affected drywall up to 4ft high from floor in entire basement space. Replace. Replace finish flooring, trim and paint. | $57,319 | [SF1852170](https://nearbypermits.com/boston/permit/SF1852170/) |
| May 11, 2026 | [71 Williams St](https://nearbypermits.com/boston/address/71-williams-st/) | 40 ft SE | Plumbing | install new fixtures. | $25,000 | [PL1847135](https://nearbypermits.com/boston/permit/PL1847135/) |

### This block (250 to 1,000 ft), 25 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [3510 Washington St](https://nearbypermits.com/boston/address/3510-washington-st/) | 270 ft W | Fire systems | This amendment changes the licensed professional designer for fire alarm installation and inspection for Permit Number ALT1462358. The design remains the same as the previous design. The New Subcontractor company name is Priority 7 Alarm Systems LLC.Provide a common access to the sprinkler room.; | $25,000 | [A1901113](https://nearbypermits.com/boston/permit/A1901113/) |
| Sep 28, 2026 | [152 Williams St](https://nearbypermits.com/boston/address/152-williams-st/) | 940 ft SE | Plumbing | New install water heater (second one at this location) | $500 | [PL1904100](https://nearbypermits.com/boston/permit/PL1904100/) |
| Sep 28, 2026 | [152 Williams St](https://nearbypermits.com/boston/address/152-williams-st/) | 940 ft SE | Plumbing | New water heater installation | $500 | [PL1904092](https://nearbypermits.com/boston/permit/PL1904092/) |
| Sep 28, 2026 | [152 Williams St](https://nearbypermits.com/boston/address/152-williams-st/) | 940 ft SE | Plumbing | New water heater installation | $500 | [G1904086](https://nearbypermits.com/boston/permit/G1904086/) |
| Sep 28, 2026 | [152 Williams St](https://nearbypermits.com/boston/address/152-williams-st/) | 940 ft SE | Plumbing | New install water heater (second at this location) | $500 | [G1904104](https://nearbypermits.com/boston/permit/G1904104/) |
| Sep 21, 2026 | [144 Mcbride St](https://nearbypermits.com/boston/address/144-mcbride-st/) | 750 ft W | Electrical | City of boston event requiring generator | $500 | [ETS1902609](https://nearbypermits.com/boston/permit/ETS1902609/) |
| Sep 17, 2026 | [90-92 Rossmore Rd](https://nearbypermits.com/boston/address/90--92-rossmore-rd/) | 900 ft SE | Alteration or repair | Front deck replacement: demolish existing deck, new composite decking, rebuild knee wall in lieu of railings with paint finish, and replace one window seal/casing | $19,120 | [SF1901997](https://nearbypermits.com/boston/permit/SF1901997/) |
| Sep 9, 2026 | [63-65 Brookley Rd](https://nearbypermits.com/boston/address/63--65-brookley-rd/) | 910 ft S | Roofing | Rubber Roof Replacement | $29,899 | [SF1896635](https://nearbypermits.com/boston/permit/SF1896635/) |
| Sep 3, 2026 | [117 Williams St](https://nearbypermits.com/boston/address/117-williams-st/) | 550 ft SE | Plumbing | Kitchen and bathroom remodel | $15,000 | [PL1895983](https://nearbypermits.com/boston/permit/PL1895983/) |
| Aug 18, 2026 | [131-133 Williams St](https://nearbypermits.com/boston/address/131--133-williams-st/) | 760 ft SE | Plumbing | 1st Floor Bathroom - Replace shower stall, no structural change. (Other is a valve) | $1,500 | [PL1888643](https://nearbypermits.com/boston/permit/PL1888643/) |
| Aug 17, 2026 | [45 Lourdes Av](https://nearbypermits.com/boston/address/45-lourdes-av/) | 970 ft E | Plumbing | 40 gal gas water heater | $3,700 | [G1886241](https://nearbypermits.com/boston/permit/G1886241/) |
| Aug 13, 2026 | [117 Williams St](https://nearbypermits.com/boston/address/117-williams-st/) | 550 ft SE | Alteration or repair | plumbing, electrical, siding, kitchen renovation, bathroom renovations, deck repairs | $300,000 | [SF1887546](https://nearbypermits.com/boston/permit/SF1887546/) |
| Aug 7, 2026 | [84-86 Brookley Rd](https://nearbypermits.com/boston/address/84--86-brookley-rd/) | 990 ft S | Electrical | Install new exterior fixtures at front and back porches | $3,600 | [E1883333](https://nearbypermits.com/boston/permit/E1883333/) |
| Jul 31, 2026 | [75 Rossmore Rd](https://nearbypermits.com/boston/address/75-rossmore-rd/) | 790 ft S | Alteration or repair | Residential weatherization and air sealing with the Mass Save Program. No structural changes. | $3,142 | [SF1877289](https://nearbypermits.com/boston/permit/SF1877289/) |
| Jul 16, 2026 | [3458 Washington St](https://nearbypermits.com/boston/address/3458-washington-st/) | 510 ft N | New building | Erect new five-story mixed-use building to contain 36 dwelling units and ground-floor local retail business space, and residential amenity space, including bicycle storage room, with seven exterior accessory residential parking spaces at grade.*Clarification: Combine parcel# 1102856000 with vacant p | Not listed | [ERT1682848](https://nearbypermits.com/boston/permit/ERT1682848/) |
| Jul 9, 2026 | [49-51 Rossmore Rd](https://nearbypermits.com/boston/address/49--51-rossmore-rd/) | 510 ft S | Plumbing | Install 40 gallon gas water heater, unit 2 | $500 | [PL1869809](https://nearbypermits.com/boston/permit/PL1869809/) |
| Jul 9, 2026 | [49-51 Rossmore Rd](https://nearbypermits.com/boston/address/49--51-rossmore-rd/) | 510 ft S | Plumbing | Install 40 gallon gas water heater, unit 2 | $500 | [G1869811](https://nearbypermits.com/boston/permit/G1869811/) |
| Jul 9, 2026 | [3458 Washington St](https://nearbypermits.com/boston/address/3458-washington-st/) | 510 ft N | Alteration or repair | Foundation only permit.*See ERT of record for already stamped and approved permitted drawings for this project/FD- 7.7.2026 Costs low | Not listed | [FND1869084](https://nearbypermits.com/boston/permit/FND1869084/) |
| Jul 1, 2026 | [3531-3541 Washington St](https://nearbypermits.com/boston/address/3531--3541-washington-st/) | 630 ft W | Other | Install one (1) single sided banner. 36" H x 120" W. Flush mount to wall over main entrance. Installed for 30 days and then to be removed | $475 | [SF1867184](https://nearbypermits.com/boston/permit/SF1867184/) |
| May 21, 2026 | [16-20 Plainfield St](https://nearbypermits.com/boston/address/16--20-plainfield-st/) | 640 ft S | Electrical | Replace meter due to corrosion. | $10,000 | [E1851949](https://nearbypermits.com/boston/permit/E1851949/) |
| May 20, 2026 | [97 Williams St](https://nearbypermits.com/boston/address/97-williams-st/) | 280 ft SE | Plumbing | Gas stove, 3rd floor | $800 | [G1851412](https://nearbypermits.com/boston/permit/G1851412/) |
| May 13, 2026 | [3484 Washington St](https://nearbypermits.com/boston/address/3484-washington-st/) | 340 ft N | Electrical | Install a new 100 amp three face underground, temporary service inside the building in order to service the elevator and car lift installations | $850 | [ETS1849059](https://nearbypermits.com/boston/permit/ETS1849059/) |
| May 7, 2026 | [84-86 Brookley Rd](https://nearbypermits.com/boston/address/84--86-brookley-rd/) | 990 ft S | Plumbing | Remodel of 2nd & 3rd floor bathrooms. | $4,000 | [PL1846571](https://nearbypermits.com/boston/permit/PL1846571/) |
| May 6, 2026 | [24-28 Gartland St](https://nearbypermits.com/boston/address/24--28-gartland-st/) | 330 ft NE | Plumbing | Boiler replacement, work in 28 Gartland St only. | $7,500 | [PL1843474](https://nearbypermits.com/boston/permit/PL1843474/) |
| May 6, 2026 | [24-28 Gartland St](https://nearbypermits.com/boston/address/24--28-gartland-st/) | 330 ft NE | Plumbing | Boiler replacement, work in 28 Gartland St only. | $7,000 | [G1843470](https://nearbypermits.com/boston/permit/G1843470/) |

### Farther (1,000 ft to ¼ mi), 13 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | [155 Williams St](https://nearbypermits.com/boston/address/155-williams-st/) | 0.20 mi SE | Electrical | Replacement of the electrical panel for safety reason, and inspection of all outlets and lights in the apartment to restore electrical service. which had been cut off a year ago due to non-payment. | $500 | [E1904507](https://nearbypermits.com/boston/permit/E1904507/) |
| Sep 10, 2026 | [44 Newbern St](https://nearbypermits.com/boston/address/44-newbern-st/) | 0.24 mi NW | Roofing | Shingle Roof Replacement & Install a chimney cap | $11,397 | [SF1862259](https://nearbypermits.com/boston/permit/SF1862259/) |
| Aug 25, 2026 | [159 Forest Hills St](https://nearbypermits.com/boston/address/159-forest-hills-st/) | 0.21 mi E | Electrical | 50A EV charging station install for apartment 1 | $1,500 | [E1886273](https://nearbypermits.com/boston/permit/E1886273/) |
| Aug 11, 2026 | [99 Call St](https://nearbypermits.com/boston/address/99-call-st/) | 0.22 mi W | Roofing | Zen Roofing shall furnish all labor, materials, equipment, and supervision necessary to remove the existing roofing system and install a complete new GAF Timberline HDZ Roofing System in accordance with manufacturer specifications and industry best practices. To be included are two new sealed dryer  | $27,795 | [SF1882288](https://nearbypermits.com/boston/permit/SF1882288/) |
| Aug 5, 2026 | [103-105 Rossmore Rd](https://nearbypermits.com/boston/address/103--105-rossmore-rd/) | 0.21 mi SE | Roofing | Strip rubber roof of all rubber related products and isntall 2" polyiso insulation.060 fully adhered rubber roofing.032 drip edge, terminate/flash as required | $33,250 | [SF1880036](https://nearbypermits.com/boston/permit/SF1880036/) |
| Jul 28, 2026 | [3371-3375 Washington St](https://nearbypermits.com/boston/address/3371--3375-washington-st/) | 0.25 mi N | Demolition | Removal of underground storage tanks discovered during demolition of the existing building. Tanks have been removed from the ground, but need to be disposed of. All waste has been drained and disposed. This is an amendment/ addition to ERT1120164. EPA#MAR000636423.*6/20/24 application assigned to FD | $1,000 | [A1617323](https://nearbypermits.com/boston/permit/A1617323/) |
| Jul 21, 2026 | [3371-3375 Washington St](https://nearbypermits.com/boston/address/3371--3375-washington-st/) | 0.25 mi N | Alteration or repair | We noticed a discrepancy between the existing conditions plan and the actual field condition. This required the footings along gridline L to be redesigned. Building Permit: ERT1120164 | $8,000 | [A1653374](https://nearbypermits.com/boston/permit/A1653374/) |
| Jul 15, 2026 | [36a-36c Union Av](https://nearbypermits.com/boston/address/36a--36c-union-av/) | 0.21 mi N | Electrical | remodel basement, install lights and outlets | $3,000 | [E1869733](https://nearbypermits.com/boston/permit/E1869733/) |
| Jul 14, 2026 | [159 Forest Hills St](https://nearbypermits.com/boston/address/159-forest-hills-st/) | 0.21 mi E | Electrical | Install customer-supplied EV charger at exterior parking space with ~75' run; add 2-pole 50A breaker and service lockout; install two mini breakers to free panel space; set up charger | $1,600 | [E1871352](https://nearbypermits.com/boston/permit/E1871352/) |
| Jul 7, 2026 | [36a-36c Union Av](https://nearbypermits.com/boston/address/36a--36c-union-av/) | 0.21 mi N | Alteration or repair | Remodel Basement Storage: Frame and insulate exterior walls. Frame storage partition walls. Lighting and outlets Relocate laundry appliances Drywall, taping and painting. | $79,584 | [ALT1843265](https://nearbypermits.com/boston/permit/ALT1843265/) |
| Jun 16, 2026 | [155 Forest Hills St](https://nearbypermits.com/boston/address/155-forest-hills-st/) | 0.22 mi NE | Alteration or repair | Rebuild of back porches | $36,400 | [SF1857937](https://nearbypermits.com/boston/permit/SF1857937/) |
| Jun 1, 2026 | [3371-3375 Washington St](https://nearbypermits.com/boston/address/3371--3375-washington-st/) | 0.25 mi N | Sign | Install (1) Channel Letters on Raceway with Dimensional Graphics Flush mount to fascia (retic. brick) using hardware | $9,989 | [ALT1847158](https://nearbypermits.com/boston/permit/ALT1847158/) |
| May 22, 2026 | [3377-3379 Washington St](https://nearbypermits.com/boston/address/3377--3379-washington-st/) | 0.24 mi N | Electrical | Running a new line for stove, running a new wire CNC machine and add 16 outlets | $3,000 | [E1852007](https://nearbypermits.com/boston/permit/E1852007/) |

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 01:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 3 permits at this address and 42 nearby: https://nearbypermits.com/boston/address/71a-williams-st/