# Building permits at 12 Prospect Pk, Boston, MA

New buildings permitted at two addresses within 850 ft since May 1, the largest $481,950.

One permit on record here. The newest, Jan 12: We are insulating the walls with cellulose with 4" dense pack cellulose. Within a quarter mile, the city has issued 49 more permits (43 projects) since May 1. The nearest permit for a new building is 810 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 12, 2026 | Alteration or repair | we are insulating the walls with cellulose with 4" dense pack cellulose, insulating the attic with 14" of cellulose and air seal second attic insulating with 9" fiberglass and air sealing, insulating the garage ceiling with 10" cellulose, insulating the crawlspace with 2" r-max rigid board | $22,246 | [SF1810865](https://nearbypermits.com/boston/permit/SF1810865/) |

## Within ¼ mi since May 1, 2026

49 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 |
|---|---|---|---|---|---|---|
| Jun 25, 2026 | [19 Farwell Av](https://nearbypermits.com/boston/address/19-farwell-av/) | 190 ft 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 15, 2026 | [19 Farwell Av](https://nearbypermits.com/boston/address/19-farwell-av/) | 190 ft NE | Roofing | shingle replacement | $8,000 | [SF1858815](https://nearbypermits.com/boston/permit/SF1858815/) |
| May 4, 2026 | [10 Warren Pk](https://nearbypermits.com/boston/address/10-warren-pk/) | 230 ft SE | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID - 852834) | $5,000 | [SF1841097](https://nearbypermits.com/boston/permit/SF1841097/) |

### This block (250 to 1,000 ft), 31 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [133 Warren Av](https://nearbypermits.com/boston/address/133-warren-av/) | 340 ft SW | 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/) |
| Oct 1, 2026 | [306 Fairmount Av](https://nearbypermits.com/boston/address/306-fairmount-av/) | 750 ft S | 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/) |
| Sep 28, 2026 | [8 Prospect St](https://nearbypermits.com/boston/address/8-prospect-st/) | 590 ft SE | Roofing | Remove existing roofing and install new asphalt singles, underlayment, ice and water shield, flashing, and roof ventilation as required. replace damage roof decking as needed. | $16,280 | [SF1904988](https://nearbypermits.com/boston/permit/SF1904988/) |
| Sep 17, 2026 | [119 Warren Av](https://nearbypermits.com/boston/address/119-warren-av/) | 340 ft W | 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 15, 2026 | [136 Milton Av](https://nearbypermits.com/boston/address/136-milton-av/) | 550 ft NE | Alteration or repair | Install manual garage door no electricity. Repair garage windows, replace side door. Repair rear steps. Repair rear door. Install storm doors at front, rear and roof deck. Repair wood shutters. Repair ceiling in bedroom / closet. Paint sunroom / French doors. Repair 6 bath tiles. Replace 6' trim. | $53,860 | [SF1896206](https://nearbypermits.com/boston/permit/SF1896206/) |
| Sep 9, 2026 | [7 Kinsale Ln](https://nearbypermits.com/boston/address/7-kinsale-ln/) | 820 ft E | New building | Eight lot single family subdivision. Lot #4. Construct a wood framed 4 Bed, 2 full bathrooms and 2 half bathrooms, 2 car attached garage as per plans.eplanProviso: Public Works Dept. to sign off their review before issuance of final COO.; | $481,950 | [ERT1230769](https://nearbypermits.com/boston/permit/ERT1230769/) |
| Aug 31, 2026 | [42 Summit St](https://nearbypermits.com/boston/address/42-summit-st/) | 610 ft N | Alteration or repair | To insulate attic and exterior walls with blown in cellulose insulation. | $16,469 | [SF1882520](https://nearbypermits.com/boston/permit/SF1882520/) |
| Aug 27, 2026 | [5 Prospect Ci](https://nearbypermits.com/boston/address/5-prospect-ci/) | 620 ft S | 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 24, 2026 | [33 Summit St](https://nearbypermits.com/boston/address/33-summit-st/) | 950 ft NE | Roofing | Replace old existing shingles, 6 sq, detached garage only. Install high performance synthetic underlayment. Install GAF ice and water shields. Install GAF Timberline architectural shingles, Materials, labor, and debris clean up are included. | $5,740 | [SF1887942](https://nearbypermits.com/boston/permit/SF1887942/) |
| Aug 12, 2026 | [33 Summit St](https://nearbypermits.com/boston/address/33-summit-st/) | 950 ft NE | Solar | Installation of roof mounted solar pv - 28 panels - 11.48kW DC. Installation of Franklin ESS on exterior of building. No Structural. | $84,627 | [SF1878561](https://nearbypermits.com/boston/permit/SF1878561/) |
| Jul 31, 2026 | [33 Summit St](https://nearbypermits.com/boston/address/33-summit-st/) | 950 ft NE | Solar | Installation of roof mounted solar pv - 28 panels - 11.48kW DC. Installation of Franklin ESS on exterior of building. Trenching required: (dc ) wire to be trenched 20 FT in dirt material. | $59,239 | [E1878582](https://nearbypermits.com/boston/permit/E1878582/) |
| Aug 12, 2026 | [42 Summit St](https://nearbypermits.com/boston/address/42-summit-st/) | 610 ft N | Electrical | removal of knob and tube, 1st floor lighting in living, dining, 2 bedrooms and bathroom, bedroom plugs, bath plug 2nd floor lighting in living room, dining room 2 bedrooms and bathroom, bedroom plugs, bath plug. | $20,000 | [E1886516](https://nearbypermits.com/boston/permit/E1886516/) |
| Aug 10, 2026 | [34 Spring Hill Rd](https://nearbypermits.com/boston/address/34-spring-hill-rd/) | 900 ft N | Electrical | upgrade service to 200 amp | $4,000 | [E1882617](https://nearbypermits.com/boston/permit/E1882617/) |
| Aug 5, 2026 | [16 Prospect St](https://nearbypermits.com/boston/address/16-prospect-st/) | 540 ft SE | Alteration or repair | Residential weatherization/air sealing. No structural changes. Site ID: 864530 | $6,000 | [SF1870398](https://nearbypermits.com/boston/permit/SF1870398/) |
| Aug 5, 2026 | [49 Summit St](https://nearbypermits.com/boston/address/49-summit-st/) | 700 ft N | Alteration or repair | Insulation + Air Sealing | $9,500 | [SF1869731](https://nearbypermits.com/boston/permit/SF1869731/) |
| Jul 27, 2026 | [5 Prospect Ci](https://nearbypermits.com/boston/address/5-prospect-ci/) | 620 ft S | Plumbing | Installation of various plumbing fixtures. | $8,500 | [PL1877649](https://nearbypermits.com/boston/permit/PL1877649/) |
| Jul 20, 2026 | [73 Summit St](https://nearbypermits.com/boston/address/73-summit-st/) | 440 ft NW | 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/) | 440 ft NW | 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/) | 690 ft SW | 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/) |
| Jul 8, 2026 | [18 Red Pine Rd](https://nearbypermits.com/boston/address/18-red-pine-rd/) | 670 ft N | Alteration or repair | Roof and siding | $70,415 | [SF1858763](https://nearbypermits.com/boston/permit/SF1858763/) |
| Jun 26, 2026 | [8 Prospect St](https://nearbypermits.com/boston/address/8-prospect-st/) | 590 ft SE | Solar | Installation of roof mounted photovoltaic solar systems, 4.05 kw 9 panels NO BATTERY STORAGE | $29,988 | [SF1858017](https://nearbypermits.com/boston/permit/SF1858017/) |
| Jun 23, 2026 | [8 Prospect St](https://nearbypermits.com/boston/address/8-prospect-st/) | 590 ft SE | Solar | Installation of roof mounted photovoltaic solar systems, 4.05 kw 9 panels NO BATTERY STORAGE | $29,988 | [E1858019](https://nearbypermits.com/boston/permit/E1858019/) |
| May 5, 2026 | [8 Prospect St](https://nearbypermits.com/boston/address/8-prospect-st/) | 590 ft SE | Solar | Installation of roof mounted photovoltaic solar systems, 3.6 kw 8 panels NO BATTERY STORAGE | $29,700 | [SF1841604](https://nearbypermits.com/boston/permit/SF1841604/) |
| Jun 26, 2026 | [119 Warren Av](https://nearbypermits.com/boston/address/119-warren-av/) | 340 ft W | Roofing | strip existing epdm roof. Install new epdm rubber roof. | $33,950 | [SF1797708](https://nearbypermits.com/boston/permit/SF1797708/) |
| Jun 1, 2026 | [46 Summit St](https://nearbypermits.com/boston/address/46-summit-st/) | 520 ft N | Roofing | Replace the asphalt roof on home. | $12,750 | [SF1855621](https://nearbypermits.com/boston/permit/SF1855621/) |
| May 28, 2026 | [40 Prospect St](https://nearbypermits.com/boston/address/40-prospect-st/) | 580 ft S | 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 19, 2026 | [48 Prospect St](https://nearbypermits.com/boston/address/48-prospect-st/) | 650 ft S | Plumbing | replace existing tub/shower valve and drain with new shower valve and drain | $1,895 | [PL1851232](https://nearbypermits.com/boston/permit/PL1851232/) |
| May 18, 2026 | [8 Kinsale Ln](https://nearbypermits.com/boston/address/8-kinsale-ln/) | 810 ft NE | New building | Eight lot single family subdivision. Lot #5. Construct a wood framed 3 Bed, 2 full bathrooms, 2 half bathrooms, 2 car unattached garage as per plans.;Garage building excluded from this application on ERT1230791;eplan;Proviso: Public Works review to be answered before issuance of COO.; | $481,950 | [ERT1230791](https://nearbypermits.com/boston/permit/ERT1230791/) |
| May 14, 2026 | [136 Milton Av](https://nearbypermits.com/boston/address/136-milton-av/) | 550 ft NE | Electrical | ev charger | $1,000 | [E1823160](https://nearbypermits.com/boston/permit/E1823160/) |
| May 12, 2026 | [243 Fairmount Av](https://nearbypermits.com/boston/address/243-fairmount-av/) | 790 ft W | Plumbing | Gas piping for Generator install | $850 | [G1844355](https://nearbypermits.com/boston/permit/G1844355/) |
| May 6, 2026 | [8 Prospect St](https://nearbypermits.com/boston/address/8-prospect-st/) | 590 ft SE | Roofing | Deck replacement - composite trex select // partial roof replacment - epdm rubber roof replacement | $35,395 | [SF1845473](https://nearbypermits.com/boston/permit/SF1845473/) |

### Farther (1,000 ft to ¼ mi), 15 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | [9 Spring Hill Rd](https://nearbypermits.com/boston/address/9-spring-hill-rd/) | 0.22 mi N | Alteration or repair | Confirm occupancy of single family. Assembly of 12x24 eow above ground pool w/cantilevered safety ledge &; rail barrier (overall dimensions incl. Airspace beneath cantilever 16x32);no record of occupancyhomeowners: justina and gabriel virga;tel. | $52,985 | [ALT1896521](https://nearbypermits.com/boston/permit/ALT1896521/) |
| Sep 30, 2026 | [9 Spring Hill Rd](https://nearbypermits.com/boston/address/9-spring-hill-rd/) | 0.22 mi N | Alteration or repair | Pending;alt1896521-occupancy committeeremove &; replace 21 windows; like for like size; no structural changes | $65,540 | [SF1896213](https://nearbypermits.com/boston/permit/SF1896213/) |
| Sep 9, 2026 | [9 Spring Hill Rd](https://nearbypermits.com/boston/address/9-spring-hill-rd/) | 0.22 mi N | Electrical | 100 to 200a overhead service upgrade and pool wiring and bonding. | $10,000 | [E1899355](https://nearbypermits.com/boston/permit/E1899355/) |
| Aug 25, 2026 | [66 Warren Av](https://nearbypermits.com/boston/address/66-warren-av/) | 0.22 mi NW | 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 10, 2026 | [73 Highland St](https://nearbypermits.com/boston/address/73-highland-st/) | 0.22 mi NW | Alteration or repair | Install shade roof over exsisting patio on left side of house | $13,000 | [ALT1873472](https://nearbypermits.com/boston/permit/ALT1873472/) |
| Jul 31, 2026 | [65 Highland St](https://nearbypermits.com/boston/address/65-highland-st/) | 0.21 mi NW | 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/) | 0.21 mi NW | Plumbing | Replacement of gas water heater | $2,293 | [G1877967](https://nearbypermits.com/boston/permit/G1877967/) |
| Jul 23, 2026 | [80 Milton Av](https://nearbypermits.com/boston/address/80-milton-av/) | 0.23 mi N | Electrical | 100 to 200 amp service upgrade. Overhead service. | $5,000 | [E1875464](https://nearbypermits.com/boston/permit/E1875464/) |
| Jul 6, 2026 | [100 Williams Av](https://nearbypermits.com/boston/address/100-williams-av/) | 0.20 mi SW | 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/) | 0.20 mi SW | 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/) | 0.20 mi SW | 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/) |
| May 22, 2026 | [225 Fairmount Av](https://nearbypermits.com/boston/address/225-fairmount-av/) | 0.20 mi W | 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/) | 0.20 mi W | Plumbing | Replacement of gas water heater | $2,293 | [G1851920](https://nearbypermits.com/boston/permit/G1851920/) |
| May 21, 2026 | [102 Williams Av](https://nearbypermits.com/boston/address/102-williams-av/) | 0.21 mi SW | 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 6, 2026 | [7 Robbart Ln](https://nearbypermits.com/boston/address/7-robbart-ln/) | 0.23 mi S | Alteration or repair | Residential weatherization/air sealing. No structural changes. (CAP-40129). | $6,000 | [SF1838146](https://nearbypermits.com/boston/permit/SF1838146/) |

## More on this street

Other addresses on Prospect Pk with permits, nearest house number first:

- [11 Prospect Pk](https://nearbypermits.com/boston/address/11-prospect-pk/): newest permit Jul 18, 2025

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 10:15 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, the one permit at this address and 49 nearby: https://nearbypermits.com/boston/address/12-prospect-pk/