# Building permits at 100 Williams Av, Boston, MA

Six permits on record here. The newest, Jul 6: Bathroom Remodeling. Within a quarter mile, the city has issued 52 more permits (48 projects) since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jul 6, 2026 | Electrical | Bathroom Remodeling | $1,500 | [E1863704](https://nearbypermits.com/boston/permit/E1863704/) |
| Jul 1, 2026 | Plumbing | Bathroom remodel: Toilet, lav, and shower on 2nd floor. | $1,500 | [PL1867412](https://nearbypermits.com/boston/permit/PL1867412/) |
| Jun 18, 2026 | 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/) |
| Dec 10, 2025 | Electrical | Wiring from panel to central heat pump and service upgrade to 200 amps | $6,500 | [E1805115](https://nearbypermits.com/boston/permit/E1805115/) |
| Oct 14, 2025 | Solar | Roof mounted installation of 14 solar panels, 5.76 kWAC, 6.02 kWDC, no ESS | $45,144 | [SF1776856](https://nearbypermits.com/boston/permit/SF1776856/) |
| Oct 6, 2025 | Solar | Roof mounted installation of 14 solar panels, 5.76 kWAC, 6.02 kWDC, no ESS | $22,572 | [E1776859](https://nearbypermits.com/boston/permit/E1776859/) |

## 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), 1 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| May 21, 2026 | [102 Williams Av](https://nearbypermits.com/boston/address/102-williams-av/) | 100 ft S | Alteration or repair | remove and replace deck boards and rails only - no digging, no framing | $20,633 | [SF1847436](https://nearbypermits.com/boston/permit/SF1847436/) |

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

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [133 Warren Av](https://nearbypermits.com/boston/address/133-warren-av/) | 810 ft E | Electrical | Replace storm-damaged exterior 100A overhead electrical service, including mast, weatherhead, meter socket, and service entrance conductors. Reconnect existing service in accordance with applicable code and utility requirements. | $2,000 | [E1905753](https://nearbypermits.com/boston/permit/E1905753/) |
| Sep 25, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 980 ft W | Plumbing | Install it on electric water, heat a forty gallon in the basement | $1,200 | [PL1903840](https://nearbypermits.com/boston/permit/PL1903840/) |
| Sep 17, 2026 | [119 Warren Av](https://nearbypermits.com/boston/address/119-warren-av/) | 720 ft NE | Alteration or repair | Demo existing landing and steps. Keep footings. Build new frame and stringers with PT lumber. Finish with composite/pvc materials and handrail | $4,374 | [SF1896219](https://nearbypermits.com/boston/permit/SF1896219/) |
| Sep 4, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 920 ft NW | Plumbing | New Gas Lines for 2 furnaces, 2 stoves, 2 waterheaters | $10,000 | [G1897568](https://nearbypermits.com/boston/permit/G1897568/) |
| Sep 3, 2026 | [176-178 Dana Av](https://nearbypermits.com/boston/address/176--178-dana-av/) | 940 ft SW | Plumbing | Adding new gas meter to supply furnace and water heater. | $2,000 | [G1895520](https://nearbypermits.com/boston/permit/G1895520/) |
| Sep 3, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 980 ft W | 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/) |
| Sep 2, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 920 ft NW | 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/) | 920 ft NW | Electrical | Comeplete rewire Add public meter Upgrade service from 100AMPS TO 200AMPS | $25,000 | [E1894515](https://nearbypermits.com/boston/permit/E1894515/) |
| Aug 28, 2026 | [210 Dana Av](https://nearbypermits.com/boston/address/210-dana-av/) | 980 ft SW | Alteration or repair | Window Replacement as per request of the customer. We are replacing 20 windows | $37,000 | [SF1884488](https://nearbypermits.com/boston/permit/SF1884488/) |
| Aug 20, 2026 | [7 Highland St](https://nearbypermits.com/boston/address/7-highland-st/) | 900 ft NW | 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/) | 920 ft NW | Alteration or repair | Confirming occupancy of existing 2 family home | Not listed | [ALT1863371](https://nearbypermits.com/boston/permit/ALT1863371/) |
| Aug 7, 2026 | [46 Neponset Av](https://nearbypermits.com/boston/address/46-neponset-av/) | 890 ft W | 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/) | 900 ft NW | 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/) | 510 ft NW | Roofing | Flat Roof Replacement - 18 square | $27,430 | [SF1796763](https://nearbypermits.com/boston/permit/SF1796763/) |
| Jul 20, 2026 | [73 Summit St](https://nearbypermits.com/boston/address/73-summit-st/) | 920 ft NE | Solar | Installation of roof mounted photovoltaic solar systems, 10.25 KW 25 panels with installation of 1 franklin battery installed on exterior of home | $64,800 | [SF1873337](https://nearbypermits.com/boston/permit/SF1873337/) |
| Jul 20, 2026 | [73 Summit St](https://nearbypermits.com/boston/address/73-summit-st/) | 920 ft NE | Solar | Installation of roof mounted photovoltaic solar systems, 10.25 KW 25 panels with installation of 1 franklin battery installed on exterior of home | $64,800 | [E1873340](https://nearbypermits.com/boston/permit/E1873340/) |
| Jul 20, 2026 | [285 Fairmount Av](https://nearbypermits.com/boston/address/285-fairmount-av/) | 630 ft E | Roofing | Strip and re-roof: commercial-grade black EPDM rubber roofing membrane // CertainTeed Landmark architectural shingles | $22,290 | [SF1871850](https://nearbypermits.com/boston/permit/SF1871850/) |
| Jun 26, 2026 | [119 Warren Av](https://nearbypermits.com/boston/address/119-warren-av/) | 720 ft NE | Roofing | strip existing epdm roof. Install new epdm rubber roof. | $33,950 | [SF1797708](https://nearbypermits.com/boston/permit/SF1797708/) |
| Jun 22, 2026 | [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/) | 920 ft NW | 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 12, 2026 | [168 Dana Av](https://nearbypermits.com/boston/address/168-dana-av/) | 980 ft W | 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 8, 2026 | [221 Dana Av](https://nearbypermits.com/boston/address/221-dana-av/) | 880 ft SW | Alteration or repair | Installation of (5) Double-Hung, Like-for-Like, Window Inserts. No structural changes per building code. | $15,763 | [SF1843545](https://nearbypermits.com/boston/permit/SF1843545/) |
| Jun 2, 2026 | [14 Washington St](https://nearbypermits.com/boston/address/14-washington-st/) | 740 ft SW | Roofing | Strip Existing Asphalt Roof And Dispose Of. Install High Temp Ice And Water barrier to Complete Roof. Install 24 gauge 16'' wide standing seam to all roof facets. | $27,000 | [SF1836010](https://nearbypermits.com/boston/permit/SF1836010/) |
| May 22, 2026 | [225 Fairmount Av](https://nearbypermits.com/boston/address/225-fairmount-av/) | 780 ft N | 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/) | 780 ft N | Plumbing | Replacement of gas water heater | $2,293 | [G1851920](https://nearbypermits.com/boston/permit/G1851920/) |
| May 12, 2026 | [243 Fairmount Av](https://nearbypermits.com/boston/address/243-fairmount-av/) | 490 ft N | Plumbing | Gas piping for Generator install | $850 | [G1844355](https://nearbypermits.com/boston/permit/G1844355/) |
| May 6, 2026 | [7 Robbart Ln](https://nearbypermits.com/boston/address/7-robbart-ln/) | 960 ft SE | Alteration or repair | Residential weatherization/air sealing. No structural changes. (CAP-40129). | $6,000 | [SF1838146](https://nearbypermits.com/boston/permit/SF1838146/) |
| May 4, 2026 | [55 Williams Av](https://nearbypermits.com/boston/address/55-williams-av/) | 820 ft NW | 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), 24 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | [306 Fairmount Av](https://nearbypermits.com/boston/address/306-fairmount-av/) | 0.22 mi E | Alteration or repair | air sealing, door kits, attic r-30 FG batting, basement R-19 FG batting, garage 4in dense pack cellulose, whole house fan cover, damming | $6,650 | [SF1894062](https://nearbypermits.com/boston/permit/SF1894062/) |
| Oct 1, 2026 | [45 Washington St](https://nearbypermits.com/boston/address/45-washington-st/) | 0.22 mi SW | Plumbing | Installing one, w/c, lav., lau. & one shower on floor one. | $5,000 | [PL1906418](https://nearbypermits.com/boston/permit/PL1906418/) |
| Aug 27, 2026 | [5 Prospect Ci](https://nearbypermits.com/boston/address/5-prospect-ci/) | 0.22 mi E | Electrical | wire existing kitchen new family room and master bedroom addition with new master bath and new smoke detectors | $20,000 | [E1894713](https://nearbypermits.com/boston/permit/E1894713/) |
| Aug 25, 2026 | [66 Warren Av](https://nearbypermits.com/boston/address/66-warren-av/) | 0.23 mi N | 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/) | 0.20 mi NW | Electrical | Install dedicated receptacles for counter top and a/c units | $2,500 | [E1891324](https://nearbypermits.com/boston/permit/E1891324/) |
| Aug 18, 2026 | [12 Newacre Rd](https://nearbypermits.com/boston/address/12-newacre-rd/) | 0.22 mi SW | Solar | Installation of roof mounted photovoltaic solar systems, 4.51 kw 11 panels with installation of 1 Franklin battery installed on exterior of home | $47,700 | [SF1879842](https://nearbypermits.com/boston/permit/SF1879842/) |
| Jul 31, 2026 | [12 Newacre Rd](https://nearbypermits.com/boston/address/12-newacre-rd/) | 0.22 mi SW | Solar | Installation of roof mounted photovoltaic solar systems, 4.51 kw 11 panels with installation of 1 Franklin battery installed on exterior of home | $47,700 | [E1879845](https://nearbypermits.com/boston/permit/E1879845/) |
| Aug 14, 2026 | [36r Williams Av](https://nearbypermits.com/boston/address/36r-williams-av/) | 0.20 mi NW | Plumbing | New Kichten, bathrom and laundry | $8,000 | [PL1887914](https://nearbypermits.com/boston/permit/PL1887914/) |
| Aug 12, 2026 | [56-58 Washington St](https://nearbypermits.com/boston/address/56--58-washington-st/) | 0.24 mi SW | Electrical | install 2 recessed light at the porch and 1 switch | $500 | [E1872885](https://nearbypermits.com/boston/permit/E1872885/) |
| Aug 3, 2026 | [179 Dana Av](https://nearbypermits.com/boston/address/179-dana-av/) | 0.20 mi SW | Electrical | Wire 1 electric water heater | $500 | [E1881347](https://nearbypermits.com/boston/permit/E1881347/) |
| Jul 28, 2026 | [179 Dana Av](https://nearbypermits.com/boston/address/179-dana-av/) | 0.20 mi SW | Plumbing | Replace electric water heater | $2,500 | [PL1879014](https://nearbypermits.com/boston/permit/PL1879014/) |
| Jul 27, 2026 | [5 Prospect Ci](https://nearbypermits.com/boston/address/5-prospect-ci/) | 0.22 mi E | Plumbing | Installation of various plumbing fixtures. | $8,500 | [PL1877649](https://nearbypermits.com/boston/permit/PL1877649/) |
| Jul 24, 2026 | [211 Fairmount Av](https://nearbypermits.com/boston/address/211-fairmount-av/) | 0.20 mi N | Electrical | wiring 2new circuit to the attic lights and receptacles | $1,500 | [E1875219](https://nearbypermits.com/boston/permit/E1875219/) |
| Jun 25, 2026 | [19 Farwell Av](https://nearbypermits.com/boston/address/19-farwell-av/) | 0.23 mi NE | Solar | Temporarily remove and reinstall existing solar equipment on side of home so that exterior renovations can be completed. | $563 | [E1863080](https://nearbypermits.com/boston/permit/E1863080/) |
| Jun 16, 2026 | [195 Dana Av](https://nearbypermits.com/boston/address/195-dana-av/) | 0.20 mi SW | Solar | Installation of roof mounted photovoltaic solar systems, 8.2 KW 20 panels NO BATTERY STORAGE | $45,000 | [SF1856810](https://nearbypermits.com/boston/permit/SF1856810/) |
| Jun 16, 2026 | [195 Dana Av](https://nearbypermits.com/boston/address/195-dana-av/) | 0.20 mi SW | Solar | Installation of roof mounted photovoltaic solar systems, 8.2 KW 20 panels NO BATTERY STORAGE | $45,000 | [E1856812](https://nearbypermits.com/boston/permit/E1856812/) |
| Jun 15, 2026 | [19 Farwell Av](https://nearbypermits.com/boston/address/19-farwell-av/) | 0.23 mi NE | Roofing | shingle replacement | $8,000 | [SF1858815](https://nearbypermits.com/boston/permit/SF1858815/) |
| May 28, 2026 | [40 Prospect St](https://nearbypermits.com/boston/address/40-prospect-st/) | 0.21 mi E | Alteration or repair | Removing and replacing 5 windows, replacing like with like, no structural changes. | $5,268 | [SF1849340](https://nearbypermits.com/boston/permit/SF1849340/) |
| May 22, 2026 | [200 Fairmount Av](https://nearbypermits.com/boston/address/200-fairmount-av/) | 0.24 mi N | Electrical | Emergency Service Wire Reattachment | $1,500 | [E1852791](https://nearbypermits.com/boston/permit/E1852791/) |
| May 19, 2026 | [48 Prospect St](https://nearbypermits.com/boston/address/48-prospect-st/) | 0.19 mi E | Plumbing | replace existing tub/shower valve and drain with new shower valve and drain | $1,895 | [PL1851232](https://nearbypermits.com/boston/permit/PL1851232/) |
| May 12, 2026 | [211 Fairmount Av](https://nearbypermits.com/boston/address/211-fairmount-av/) | 0.20 mi N | 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 | [10 Warren Pk](https://nearbypermits.com/boston/address/10-warren-pk/) | 0.21 mi E | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID - 852834) | $5,000 | [SF1841097](https://nearbypermits.com/boston/permit/SF1841097/) |
| May 4, 2026 | [56-58 Washington St](https://nearbypermits.com/boston/address/56--58-washington-st/) | 0.24 mi SW | Roofing | Construct roof over existing deck, including new framing, support posts, roof sheathing, and asphalt shingles. Install ceiling insulation and finish interior ceiling. Converting it into a season room. Relocate existing shed on the property and reinstall. | $20,000 | [SF1838108](https://nearbypermits.com/boston/permit/SF1838108/) |
| May 1, 2026 | [225 Dana Av](https://nearbypermits.com/boston/address/225-dana-av/) | 0.22 mi SW | Roofing | Strip existing roofing material Identify, Notify and repair any identified damage Install Ice and water shield and synthetic membrane Install new roofing shingles Demo and install new pvc for rakes and soffits | $13,106 | [SF1844358](https://nearbypermits.com/boston/permit/SF1844358/) |

## Zoning requests nearby

Hearings are public: you can comment or attend. Dates can move; check the city's page before you go.

| Status | Hearing | Address | Distance | Request | Case | City's words | Filed |
|---|---|---|---|---|---|---|---|
| Requested |  | 134 Warren Av | 910 ft E | To construct a new 2½-story detached single-family home on a vacant lot | [BOA1879910](https://www.boston.gov/appeal-tracker) | "Community Process" | 2026-07-29 |
| Approved | Apr 16, 2026 | 168 Dana Av | 980 ft W | To change occupancy from one-family to a two-family | [BOA1710494](https://www.boston.gov/appeal-tracker) | "Appeal Closed", decision "Approved" | 2025-04-17 |

## More on this street

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

- [102 Williams Av](https://nearbypermits.com/boston/address/102-williams-av/): newest permit May 21, 2026
- [97 Williams Av](https://nearbypermits.com/boston/address/97-williams-av/): newest permit Oct 31, 2024
- [119 Williams Av](https://nearbypermits.com/boston/address/119-williams-av/): newest permit Oct 22, 2024
- [124 Williams Av](https://nearbypermits.com/boston/address/124-williams-av/): newest permit Nov 12, 2025
- [75 Williams Av](https://nearbypermits.com/boston/address/75-williams-av/): newest permit Oct 23, 2025
- [135 Williams Av](https://nearbypermits.com/boston/address/135-williams-av/): newest permit Mar 25, 2025
- [55 Williams Av](https://nearbypermits.com/boston/address/55-williams-av/): newest permit May 4, 2026
- [53 Williams Av](https://nearbypermits.com/boston/address/53-williams-av/): newest permit Feb 20, 2025
- [52 Williams Av](https://nearbypermits.com/boston/address/52-williams-av/): newest permit Jul 14, 2025
- [48 Williams Av](https://nearbypermits.com/boston/address/48-williams-av/): newest permit Sep 4, 2026

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 18:08 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Zoning requests come from the Boston Zoning Board of Appeal tracker (https://data.boston.gov/dataset/zoning-board-of-appeal-tracker). We read it Oct 8, 17:47 UTC.

Map, all 6 permits at this address and 52 nearby: https://nearbypermits.com/boston/address/100-williams-av/