# Building permits at 23 Williams Av, Boston, MA

Four permits on record here. The newest, Jan 28, 2025: Insulation installation - siding removal and reinstallation. Within a quarter mile, the city has issued 52 more permits (48 projects) since May 1. One is for a new building, 0.20 mi away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 28, 2025 | Alteration or repair | Insulation installation - siding removal and reinstallation | $5,985 | [SF1684914](https://nearbypermits.com/boston/permit/SF1684914/) |
| Mar 3, 2014 | Plumbing | Furnish + install new water heater | $1,125 | [PL323560](https://nearbypermits.com/boston/permit/PL323560/) |
| Mar 3, 2014 | Plumbing | Furnish + install new water heater | $1,125 | [G323555](https://nearbypermits.com/boston/permit/G323555/) |
| Apr 1, 2010 | Roofing | New roof | $3,200 | [SF20174](https://nearbypermits.com/boston/permit/SF20174/) |

## Within ¼ mi since May 1, 2026

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

### Next door (under 250 ft), 3 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | [36r Williams Av](https://nearbypermits.com/boston/address/36r-williams-av/) | 220 ft E | Plumbing | New Kichten, bathrom and laundry | $8,000 | [PL1887914](https://nearbypermits.com/boston/permit/PL1887914/) |
| Aug 10, 2026 | [13 Williams Av](https://nearbypermits.com/boston/address/13-williams-av/) | 220 ft W | Electrical | Install #10 AWG circuit with 35A 2-pole GFCI breaker to 60-amp AC disconnect with surge arrester sizing per manufacturer name plate. • Install a 20-amp circuit with 20A AFCI/GFCI breaker for a service receptacle with in-use weatherproof cover. | $3,000 | [E1882603](https://nearbypermits.com/boston/permit/E1882603/) |
| Aug 10, 2026 | [13 Williams Av](https://nearbypermits.com/boston/address/13-williams-av/) | 220 ft W | Electrical | Install #10 AWG circuit and a #12 AWG with 35A 2-pole GFCI breaker to 60-amp AC disconnect with surge arrester each sizing per manufacturer name plate. • Install 2 20-amp circuit with 20A AFCI/GFCI breaker for a service receptacle with in-useweatherproof cover. | $3,000 | [E1882601](https://nearbypermits.com/boston/permit/E1882601/) |

### This block (250 to 1,000 ft), 27 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | [731 Truman Pw](https://nearbypermits.com/boston/address/731-truman-pw/) | 550 ft NW | Alteration or repair | Creation of an Accessory Dwelling Unit (ADU) within the existing basement of a two-family residential dwelling. | $110,000 | [ALT1828804](https://nearbypermits.com/boston/permit/ALT1828804/) |
| Sep 4, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 330 ft SE | Plumbing | New Gas Lines for 2 furnaces, 2 stoves, 2 waterheaters | $10,000 | [G1897568](https://nearbypermits.com/boston/permit/G1897568/) |
| Sep 2, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 330 ft SE | Plumbing | Whole house plumbing renovation | $19,800 | [PL1895575](https://nearbypermits.com/boston/permit/PL1895575/) |
| Sep 1, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 330 ft SE | Electrical | Comeplete rewire Add public meter Upgrade service from 100AMPS TO 200AMPS | $25,000 | [E1894515](https://nearbypermits.com/boston/permit/E1894515/) |
| Aug 28, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 570 ft SW | Solar | Installation of roof mounted photovoltaic solar systems, 8.61 kw 21 panels with installation of 2 franklin batteries installed on exterior of home | $103,200 | [SF1886935](https://nearbypermits.com/boston/permit/SF1886935/) |
| Aug 28, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 570 ft SW | Solar | Installation of roof mounted photovoltaic solar systems, 8.61 kw 21 panels with installation of 2 franklin batteries installed on exterior of home | $103,200 | [E1886942](https://nearbypermits.com/boston/permit/E1886942/) |
| Aug 25, 2026 | [66 Warren Av](https://nearbypermits.com/boston/address/66-warren-av/) | 940 ft E | Alteration or repair | Work being performed through mass save. Air seal and insulate attic floor up to R-49 using open blown cellulsoe. Install Fiberglass and 2" Poly board on open wall in attic space | $4,000 | [SF1877499](https://nearbypermits.com/boston/permit/SF1877499/) |
| Aug 24, 2026 | [14 Highland St](https://nearbypermits.com/boston/address/14-highland-st/) | 370 ft E | Electrical | Install dedicated receptacles for counter top and a/c units | $2,500 | [E1891324](https://nearbypermits.com/boston/permit/E1891324/) |
| Aug 20, 2026 | [7 Highland St](https://nearbypermits.com/boston/address/7-highland-st/) | 350 ft SE | Alteration or repair | Confirm occupancy of existing 2 family.; | Not listed | [ALT1878953](https://nearbypermits.com/boston/permit/ALT1878953/) |
| Aug 14, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 330 ft SE | Alteration or repair | Confirming occupancy of existing 2 family home | Not listed | [ALT1863371](https://nearbypermits.com/boston/permit/ALT1863371/) |
| Aug 13, 2026 | [44 Warren Av](https://nearbypermits.com/boston/address/44-warren-av/) | 880 ft NE | Alteration or repair | Remove and replace one (1) broken storm door; Remove and replace approx. ten (10) siding shingles and Cleaning of front yard. Trash to be removed by Contractor in pick up truck to an authorized facility. | $2,400 | [SF1877700](https://nearbypermits.com/boston/permit/SF1877700/) |
| Aug 7, 2026 | [46 Neponset Av](https://nearbypermits.com/boston/address/46-neponset-av/) | 660 ft S | Electrical | Address also known as 50 Neponset ave. 200 amp overhead sevice upgrade | $5,300 | [E1884013](https://nearbypermits.com/boston/permit/E1884013/) |
| Aug 5, 2026 | [7 Highland St](https://nearbypermits.com/boston/address/7-highland-st/) | 350 ft SE | Roofing | remove and install 18sq asphalt roofing | $13,990 | [SF1864947](https://nearbypermits.com/boston/permit/SF1864947/) |
| Jul 29, 2026 | [35 Pond St](https://nearbypermits.com/boston/address/35-pond-st/) | 770 ft SE | Roofing | Flat Roof Replacement - 18 square | $27,430 | [SF1796763](https://nearbypermits.com/boston/permit/SF1796763/) |
| Jul 27, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 570 ft SW | Electrical | Install SPAN panel and replace meter and service conductors | $9,600 | [E1877930](https://nearbypermits.com/boston/permit/E1877930/) |
| Jul 24, 2026 | [211 Fairmount Av](https://nearbypermits.com/boston/address/211-fairmount-av/) | 560 ft E | Electrical | wiring 2new circuit to the attic lights and receptacles | $1,500 | [E1875219](https://nearbypermits.com/boston/permit/E1875219/) |
| Jul 21, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 570 ft SW | Alteration or repair | Confirm occupancy of existing single-family dwelling. | Not listed | [ALT1861742](https://nearbypermits.com/boston/permit/ALT1861742/) |
| Jul 8, 2026 | [775 Truman Pw](https://nearbypermits.com/boston/address/775-truman-pw/) | 890 ft W | Roofing | Roof replacement - Remove existing layers, inspect decking & replace if needed. Install proper underlayment, install new shingles. | $11,225 | [SF1865083](https://nearbypermits.com/boston/permit/SF1865083/) |
| Jun 22, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 330 ft SE | Alteration or repair | Replace windows 20 shingle part of mansortroof,drywall and plaster, remodel4 bathrooms, rewire to code,new electrical service, revise plumbing to code and ne hvav systems | $200,000 | [SF1863142](https://nearbypermits.com/boston/permit/SF1863142/) |
| Jun 17, 2026 | [4 Neponset Av](https://nearbypermits.com/boston/address/4-neponset-av/) | 570 ft W | Alteration or repair | I Peggy Hinds Watson declare my home occupancy at 4 Neponset Av is an existing two family. | Not listed | [ALT1842285](https://nearbypermits.com/boston/permit/ALT1842285/) |
| Jun 8, 2026 | [672-674 Truman Pw](https://nearbypermits.com/boston/address/672--674-truman-pw/) | 590 ft N | Plumbing | Installing a prep sink at Cappy's pizza | $1,000 | [PL1858513](https://nearbypermits.com/boston/permit/PL1858513/) |
| May 22, 2026 | [4 Neponset Av](https://nearbypermits.com/boston/address/4-neponset-av/) | 570 ft W | Alteration or repair | No inspections unit the occupancy is confirmed; ALT1842285 pending.Remove existing rotted 4x30 front porch and 3 steps only. Install new footings and pressure treated framing. Install new composite decking boards and steps. Install new vinyl guardrails and handrails. | $24,000 | [SF1851727](https://nearbypermits.com/boston/permit/SF1851727/) |
| May 22, 2026 | [225 Fairmount Av](https://nearbypermits.com/boston/address/225-fairmount-av/) | 740 ft E | Plumbing | Replacement of gas water heater | $2,293 | [PL1851921](https://nearbypermits.com/boston/permit/PL1851921/) |
| May 22, 2026 | [225 Fairmount Av](https://nearbypermits.com/boston/address/225-fairmount-av/) | 740 ft E | Plumbing | Replacement of gas water heater | $2,293 | [G1851920](https://nearbypermits.com/boston/permit/G1851920/) |
| May 22, 2026 | [200 Fairmount Av](https://nearbypermits.com/boston/address/200-fairmount-av/) | 690 ft NE | Electrical | Emergency Service Wire Reattachment | $1,500 | [E1852791](https://nearbypermits.com/boston/permit/E1852791/) |
| May 12, 2026 | [211 Fairmount Av](https://nearbypermits.com/boston/address/211-fairmount-av/) | 560 ft E | Alteration or repair | Finish attic space and add attic drop down stairs. Finished attic space to be used as a finished storage area. | $10,000 | [ALT1799979](https://nearbypermits.com/boston/permit/ALT1799979/) |
| May 4, 2026 | [55 Williams Av](https://nearbypermits.com/boston/address/55-williams-av/) | 560 ft S | Alteration or repair | No inspections until occupancy is confirmed; ALT1844278 pending.Install 3/8" foam insulation board to exterior of home. Install double 4" vinyl siding to home. Cover trim fascia and soffit. | $14,000 | [SF1844054](https://nearbypermits.com/boston/permit/SF1844054/) |

### Farther (1,000 ft to ¼ mi), 22 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 0.22 mi S | Plumbing | Install it on electric water, heat a forty gallon in the basement | $1,200 | [PL1903840](https://nearbypermits.com/boston/permit/PL1903840/) |
| Sep 3, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 0.22 mi S | Alteration or repair | Change occupancy from one-family to a two-family. No work to be done. | $80,000 | [ALT1690566](https://nearbypermits.com/boston/permit/ALT1690566/) |
| Jul 31, 2026 | [65 Highland St](https://nearbypermits.com/boston/address/65-highland-st/) | 0.23 mi E | Plumbing | Replacement of gas water heater | $2,293 | [PL1877971](https://nearbypermits.com/boston/permit/PL1877971/) |
| Jul 31, 2026 | [65 Highland St](https://nearbypermits.com/boston/address/65-highland-st/) | 0.23 mi E | Plumbing | Replacement of gas water heater | $2,293 | [G1877967](https://nearbypermits.com/boston/permit/G1877967/) |
| Jul 20, 2026 | [123 Dana Av](https://nearbypermits.com/boston/address/123-dana-av/) | 0.19 mi SW | Alteration or repair | Insulation + Air Sealing | $16,200 | [SF1874056](https://nearbypermits.com/boston/permit/SF1874056/) |
| Jul 10, 2026 | [28b Garfield Av](https://nearbypermits.com/boston/address/28b-garfield-av/) | 0.24 mi SW | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID-869246)(Unit-2) | $5,000 | [SF1861131](https://nearbypermits.com/boston/permit/SF1861131/) |
| Jul 6, 2026 | [100 Williams Av](https://nearbypermits.com/boston/address/100-williams-av/) | 0.24 mi SE | Electrical | Bathroom Remodeling | $1,500 | [E1863704](https://nearbypermits.com/boston/permit/E1863704/) |
| Jul 1, 2026 | [100 Williams Av](https://nearbypermits.com/boston/address/100-williams-av/) | 0.24 mi SE | Plumbing | Bathroom remodel: Toilet, lav, and shower on 2nd floor. | $1,500 | [PL1867412](https://nearbypermits.com/boston/permit/PL1867412/) |
| Jun 18, 2026 | [100 Williams Av](https://nearbypermits.com/boston/address/100-williams-av/) | 0.24 mi SE | Alteration or repair | Bathroom remodel including plumbing, electrical, tiles, new bathroom fixtures, painting and insulation as needed per code. | $47,700 | [SF1859089](https://nearbypermits.com/boston/permit/SF1859089/) |
| Jun 18, 2026 | [38 Beacon St](https://nearbypermits.com/boston/address/38-beacon-st/) | 0.25 mi NE | Electrical | Connect one 75 kVA trailer-mounted generator to supply 2/0 5-wire 120/240 volts to power distribution equipment that will supply power to sponsor stations and inflatables. | $1,500 | [ETS1862668](https://nearbypermits.com/boston/permit/ETS1862668/) |
| Jun 17, 2026 | [34 Beacon St](https://nearbypermits.com/boston/address/34-beacon-st/) | 0.23 mi NE | Plumbing | Boiler Replacement | $9,000 | [G1859801](https://nearbypermits.com/boston/permit/G1859801/) |
| Jun 12, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 0.22 mi S | Electrical | Electrical service 3 gang 200A addition of public panel and 1st floor panel relocation | $5,000 | [E1859145](https://nearbypermits.com/boston/permit/E1859145/) |
| Jun 10, 2026 | [19 Loring Pl](https://nearbypermits.com/boston/address/19-loring-pl/) | 0.24 mi SW | Roofing | Replace old existing shingles, 14 sq. Install high performance synthetic underlayment. Apply GAF ice and water shields. Install GAF Timberline architectural shingles. All materials, labor, and debris clean up are included. | $5,600 | [SF1859501](https://nearbypermits.com/boston/permit/SF1859501/) |
| Jun 8, 2026 | [19 Loring Pl](https://nearbypermits.com/boston/address/19-loring-pl/) | 0.24 mi SW | Solar | Installation of 12 roof mounted solar panels, no ESS. | $22,000 | [SF1854947](https://nearbypermits.com/boston/permit/SF1854947/) |
| May 27, 2026 | [19 Loring Pl](https://nearbypermits.com/boston/address/19-loring-pl/) | 0.24 mi SW | Solar | Installation of 12 roof mounted solar panels, no ESS. | $5,000 | [E1854954](https://nearbypermits.com/boston/permit/E1854954/) |
| May 28, 2026 | [87 Maple St](https://nearbypermits.com/boston/address/87-maple-st/) | 0.20 mi NW | Alteration or repair | 1.- Replace with anew 2.- replace new slnding 3.- install pvc wood an door trims 4.- install water guttars square feet roof.30 SQ cement 30 sq all window ond | $70,000 | [SF1849425](https://nearbypermits.com/boston/permit/SF1849425/) |
| May 22, 2026 | [51 Walnut St](https://nearbypermits.com/boston/address/51-walnut-st/) | 0.20 mi NW | New building | Raze existing 1 story garage on 35 Walnut Street, and erect a new 1 story, 4 door garage spanning across 35 Walnut and the abutting 51 Walnut (Both properties owned by Applicant). | $125,000 | [ERT1676367](https://nearbypermits.com/boston/permit/ERT1676367/) |
| May 22, 2026 | [125 Dana Av](https://nearbypermits.com/boston/address/125-dana-av/) | 0.19 mi SW | Electrical | Uprage service to 400 amps Add public panel Add circuits for 3 heat pumps | $8,000 | [E1852253](https://nearbypermits.com/boston/permit/E1852253/) |
| May 22, 2026 | [51 Walnut St](https://nearbypermits.com/boston/address/51-walnut-st/) | 0.20 mi NW | Alteration or repair | Combine parcel 1809178000 (1,600 Sq. Ft.) with parcel 1809177001 (2,782 Sq. Ft.). See ert 1676367. | Not listed | [ALT1707721](https://nearbypermits.com/boston/permit/ALT1707721/) |
| May 21, 2026 | [102 Williams Av](https://nearbypermits.com/boston/address/102-williams-av/) | 0.25 mi SE | Alteration or repair | remove and replace deck boards and rails only - no digging, no framing | $20,633 | [SF1847436](https://nearbypermits.com/boston/permit/SF1847436/) |
| May 12, 2026 | [243 Fairmount Av](https://nearbypermits.com/boston/address/243-fairmount-av/) | 0.21 mi SE | Plumbing | Gas piping for Generator install | $850 | [G1844355](https://nearbypermits.com/boston/permit/G1844355/) |
| May 5, 2026 | [125 Dana Av](https://nearbypermits.com/boston/address/125-dana-av/) | 0.19 mi SW | Alteration or repair | Energy retrofit scope: Replacement of two windows. Door weatherstripping. Installation of new HVAC system, electric water heater, and electrical service upgrade. Replacement of kitchen and bath ventilation fans. All work is part of the City of Boston Healthy and Green Retrofit Pilot Program. | $123,800 | [SF1840339](https://nearbypermits.com/boston/permit/SF1840339/) |

## More on this street

Other addresses on Williams Av with permits, nearest house number first:

- [17 Williams Av](https://nearbypermits.com/boston/address/17-williams-av/): newest permit Mar 18, 2025
- [15 Williams Av](https://nearbypermits.com/boston/address/15-williams-av/): newest permit Dec 2, 2024
- [31 Williams Av](https://nearbypermits.com/boston/address/31-williams-av/): newest permit Jan 22, 2026
- [32 Williams Av](https://nearbypermits.com/boston/address/32-williams-av/): newest permit Nov 3, 2025
- [13 Williams Av](https://nearbypermits.com/boston/address/13-williams-av/): newest permit Aug 10, 2026
- [11 Williams Av](https://nearbypermits.com/boston/address/11-williams-av/): newest permit Mar 24, 2025
- [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/): newest permit Sep 4, 2026
- [52 Williams Av](https://nearbypermits.com/boston/address/52-williams-av/): newest permit Jul 14, 2025
- [53 Williams Av](https://nearbypermits.com/boston/address/53-williams-av/): newest permit Feb 20, 2025
- [55 Williams Av](https://nearbypermits.com/boston/address/55-williams-av/): newest permit May 4, 2026

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 05:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 4 permits at this address and 52 nearby: https://nearbypermits.com/boston/address/23-williams-av/