# Building permits at 20 Keystone St, Boston, MA

The biggest project within a quarter mile since May 1: a $405,000 new building at 67 Belle Av, permitted Jul 23.

One permit on record here. The newest, Jan 16: Strip the old shingles roof - install water-Resistant Underlayment. Within a quarter mile, the city has issued 52 more permits (49 projects) since May 1. One is for a new building, 530 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 16, 2026 | Roofing | -strip the old shingles roof - install water-Resistant Underlayment. Roofrunner in the rest of the house -F8 Open Face x 10 ft. White Aluminum Drip Edge Flashing around the house -Install Starter Shingles Swiftstart -Install Shingles Landmark weathered wood -Install Ventilation Ridge Vent | $9,000 | [SF1812602](https://nearbypermits.com/boston/permit/SF1812602/) |

## 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), 4 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 13, 2026 | [68 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/68-joyce-kilmer-rd/) | 220 ft W | Plumbing | Kitchen sink, dishwasher, and refrigerator plumbing connections | $1,500 | [PL1886954](https://nearbypermits.com/boston/permit/PL1886954/) |
| Aug 13, 2026 | [68 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/68-joyce-kilmer-rd/) | 220 ft W | Plumbing | New gas oven connection for kitchen remodel | $1,000 | [G1886958](https://nearbypermits.com/boston/permit/G1886958/) |
| Aug 12, 2026 | [68 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/68-joyce-kilmer-rd/) | 220 ft W | Electrical | Re-wiring new kitchen outlets per code add 2 outlets on dining room area install 12 4" recess lights and install 2 island pendants, upgrade the existing 100amp service to new 200amp service | $13,000 | [E1886052](https://nearbypermits.com/boston/permit/E1886052/) |
| Aug 5, 2026 | [68 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/68-joyce-kilmer-rd/) | 220 ft W | Alteration or repair | Gut kitchen renovation. Including demo and dispose of existing kitchen finishes walls, ceiling and flooring. Install new hardwood flooring, cabinets, counters and appliances. All related plumbing and electrical work. | $70,620 | [SF1882518](https://nearbypermits.com/boston/permit/SF1882518/) |

### This block (250 to 1,000 ft), 21 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | [40 Glenhaven Rd](https://nearbypermits.com/boston/address/40-glenhaven-rd/) | 350 ft N | Plumbing | Replacement of 2 gas water heaters | $2,247 | [PL1903350](https://nearbypermits.com/boston/permit/PL1903350/) |
| Sep 29, 2026 | [40 Glenhaven Rd](https://nearbypermits.com/boston/address/40-glenhaven-rd/) | 350 ft N | Plumbing | Replacement of 2 gas water heaters | $2,247 | [G1903343](https://nearbypermits.com/boston/permit/G1903343/) |
| Sep 24, 2026 | [14 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/14-joyce-kilmer-rd/) | 530 ft N | Alteration or repair | Install replacement bath system - no strucutral work | $23,727 | [SF1899751](https://nearbypermits.com/boston/permit/SF1899751/) |
| Sep 18, 2026 | [67 Belle Av](https://nearbypermits.com/boston/address/67-belle-av/) | 530 ft W | Electrical | Wire new single family 3 bed room home with a 400 amp overhead service | $30,000 | [E1900725](https://nearbypermits.com/boston/permit/E1900725/) |
| Sep 3, 2026 | [66 Baker St](https://nearbypermits.com/boston/address/66-baker-st/) | 720 ft N | Alteration or repair | Remove and replace 1 entry door; like for like size; no structural changes | $8,600 | [SF1890302](https://nearbypermits.com/boston/permit/SF1890302/) |
| Sep 3, 2026 | [2356 Centre St](https://nearbypermits.com/boston/address/2356-centre-st/) | 760 ft E | Alteration or repair | Insulate exterior walls with 4" dense pack cellulose, insulate attic floor with 15" cellulose, insulate knee wall slope with cellulose and 2" ISO board. | $21,703 | [SF1886809](https://nearbypermits.com/boston/permit/SF1886809/) |
| Sep 2, 2026 | [67 Belle Av](https://nearbypermits.com/boston/address/67-belle-av/) | 530 ft W | Plumbing | rough and finish plumbing for new home | $17,000 | [PL1896797](https://nearbypermits.com/boston/permit/PL1896797/) |
| Sep 1, 2026 | [23 Glenellen Rd](https://nearbypermits.com/boston/address/23-glenellen-rd/) | 370 ft SE | Alteration or repair | Mass save insulation and air sealing. no structural changes. no dumpster needed. | $1,676 | [SF1888177](https://nearbypermits.com/boston/permit/SF1888177/) |
| Aug 24, 2026 | [89 Glenellen Rd](https://nearbypermits.com/boston/address/89-glenellen-rd/) | 980 ft S | Roofing | Replace asphalt shingles, underlayment, ice and water on edges, and drip edge | $5,000 | [SF1891633](https://nearbypermits.com/boston/permit/SF1891633/) |
| Aug 12, 2026 | [62 Paragon Rd](https://nearbypermits.com/boston/address/62-paragon-rd/) | 600 ft S | Roofing | Strip roof. Install ice and water shield and synthetic underlayer. Install 16 squares of architect type roofing shingles. | $12,900 | [SF1884470](https://nearbypermits.com/boston/permit/SF1884470/) |
| Aug 12, 2026 | [2389 Centre St](https://nearbypermits.com/boston/address/2389-centre-st/) | 790 ft SE | Electrical | Low voltage alarm install | $1,200 | [ELV1883628](https://nearbypermits.com/boston/permit/ELV1883628/) |
| Jul 23, 2026 | [67 Belle Av](https://nearbypermits.com/boston/address/67-belle-av/) | 530 ft W | New building | Erect new single family dwelling with an unfinished basement for mechanical/storage use, and an attic that is unfinished except for a bedroom/hallway.Includes; two off- street parking spots; and a Solar -Ready Zone. On the vacant lot parcel # 2010596000- 10th Edition;e[Plans] Filed | $405,000 | [ERT1797639](https://nearbypermits.com/boston/permit/ERT1797639/) |
| Jul 10, 2026 | [78 Glenellen Rd](https://nearbypermits.com/boston/address/78-glenellen-rd/) | 850 ft S | Roofing | Strip & re-roof house | $12,500 | [SF1867009](https://nearbypermits.com/boston/permit/SF1867009/) |
| Jun 10, 2026 | [11 Johnson St](https://nearbypermits.com/boston/address/11-johnson-st/) | 860 ft N | Alteration or repair | Installing ductless mini split heat pump system with 1 outdoor unit. | $5,300 | [SF1851667](https://nearbypermits.com/boston/permit/SF1851667/) |
| Jun 3, 2026 | [27 Belle Av](https://nearbypermits.com/boston/address/27-belle-av/) | 860 ft NW | Electrical | Furnish and install (2) recessed LED lights on the new porch. Furnish and install (2) wall sconce light fixtures on the porch. Furnish and install (2) weather-resistant receptacle outlets: (1) receptacle outlet on the porch. (1) receptacle outlet on the side of the house. | $2,000 | [E1856673](https://nearbypermits.com/boston/permit/E1856673/) |
| Jun 2, 2026 | [11 Centre Ln](https://nearbypermits.com/boston/address/11-centre-ln/) | 840 ft E | Electrical | Low voltage alarm install | $1,200 | [ELV1856606](https://nearbypermits.com/boston/permit/ELV1856606/) |
| May 26, 2026 | [11 Johnson St](https://nearbypermits.com/boston/address/11-johnson-st/) | 860 ft N | Electrical | Wiring 1 outdoor unit for ductless mini split heat pump system | $1,000 | [E1851636](https://nearbypermits.com/boston/permit/E1851636/) |
| May 20, 2026 | [105 Belle Av](https://nearbypermits.com/boston/address/105-belle-av/) | 650 ft SW | Solar | Installation of roof mounted photovoltaic solar systems, 2.05 kw 5 panels with installation of 1 Tesla powerwall3 battery installed on exterior of home | $37,500 | [SF1841837](https://nearbypermits.com/boston/permit/SF1841837/) |
| May 15, 2026 | [27 Belle Av](https://nearbypermits.com/boston/address/27-belle-av/) | 860 ft NW | Alteration or repair | The Contractor shall demolish and dispose of the existing enclosed front porch, front masonry stairs and wrought iron railings. The Contractor shall rebuild the front porch as an open porch, with new masonry front stairs. The Contractor shall modify the front walkway to align with the new stairs | $38,900 | [SF1848876](https://nearbypermits.com/boston/permit/SF1848876/) |
| May 7, 2026 | [115 Northdale Rd](https://nearbypermits.com/boston/address/115-northdale-rd/) | 670 ft W | Electrical | Wiring 2 heat pumps and 1 wall mount heater | $1,650 | [E1566291](https://nearbypermits.com/boston/permit/E1566291/) |
| May 5, 2026 | [51 Joyce Kilmer Rd](https://nearbypermits.com/boston/address/51-joyce-kilmer-rd/) | 360 ft NW | Electrical | Install EV charger 50A hardwired option inside garage (Tesla Charger). | $900 | [E1845840](https://nearbypermits.com/boston/permit/E1845840/) |

### Farther (1,000 ft to ¼ mi), 27 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | [12 Woodbrier Rd](https://nearbypermits.com/boston/address/12-woodbrier-rd/) | 0.25 mi NE | Electrical | Install wiring for hot water heater and dryer | $750 | [E1895978](https://nearbypermits.com/boston/permit/E1895978/) |
| Sep 4, 2026 | [93 Baker St](https://nearbypermits.com/boston/address/93-baker-st/) | 0.24 mi N | Plumbing | Replacement of gas water heater | $2,753 | [PL1895466](https://nearbypermits.com/boston/permit/PL1895466/) |
| Sep 4, 2026 | [93 Baker St](https://nearbypermits.com/boston/address/93-baker-st/) | 0.24 mi N | Plumbing | Replacement of gas water heater | $2,753 | [G1895462](https://nearbypermits.com/boston/permit/G1895462/) |
| Sep 3, 2026 | [23 Wedgemere Rd](https://nearbypermits.com/boston/address/23-wedgemere-rd/) | 0.21 mi E | Plumbing | Run new gas line to the attic furnace. Note there is not gas line on the street at this time. This work is being completed for the future, when a gas meter is installed at their house. | $1,500 | [G1889789](https://nearbypermits.com/boston/permit/G1889789/) |
| Sep 2, 2026 | [19 New Haven St](https://nearbypermits.com/boston/address/19-new-haven-st/) | 0.21 mi SW | Fire systems | Wire and install 4 smoke detectors Wire and install 3 carbon smoke detectors | $2,000 | [EFA1888863](https://nearbypermits.com/boston/permit/EFA1888863/) |
| Aug 27, 2026 | [12 Woodbrier Rd](https://nearbypermits.com/boston/address/12-woodbrier-rd/) | 0.25 mi NE | Plumbing | Water Heater Swap, converting from Gas to electric. 50 Gallon | $3,000 | [PL1891819](https://nearbypermits.com/boston/permit/PL1891819/) |
| Aug 27, 2026 | [12 Woodbrier Rd](https://nearbypermits.com/boston/address/12-woodbrier-rd/) | 0.25 mi NE | Plumbing | Removing remaining gas line and Capping at Meter. | $150 | [G1891812](https://nearbypermits.com/boston/permit/G1891812/) |
| Aug 18, 2026 | [137 Keystone St](https://nearbypermits.com/boston/address/137-keystone-st/) | 0.23 mi S | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID-305636418) | $1,000 | [SF1882023](https://nearbypermits.com/boston/permit/SF1882023/) |
| Aug 18, 2026 | [127 Laurie Av](https://nearbypermits.com/boston/address/127-laurie-av/) | 0.24 mi NW | Plumbing | New gas service tie in | $800 | [G1852902](https://nearbypermits.com/boston/permit/G1852902/) |
| Aug 18, 2026 | [19 New Haven St](https://nearbypermits.com/boston/address/19-new-haven-st/) | 0.21 mi SW | Electrical | Upgrade electrical service from 100 amps to 200 amps Re wire 3 bedrooms, kitchen, 1.5 bathrooms, living room, dining room wire and install an exterior RV outlet | $28,000 | [E1888853](https://nearbypermits.com/boston/permit/E1888853/) |
| Aug 11, 2026 | [106 Eastwood Cc](https://nearbypermits.com/boston/address/106-eastwood-cc/) | 0.20 mi W | Plumbing | 2nd fl. Rough and finish a 3/4 bathroom, a half bath and bar sink. 3rd fl. Rough and finish a full bathroom and washing machine connection. | $11,000 | [PL1884350](https://nearbypermits.com/boston/permit/PL1884350/) |
| Aug 11, 2026 | [106 Eastwood Cc](https://nearbypermits.com/boston/address/106-eastwood-cc/) | 0.20 mi W | Plumbing | 2ndfl. Rough a 1/2" gas line for stove. | $1,100 | [G1884352](https://nearbypermits.com/boston/permit/G1884352/) |
| Aug 7, 2026 | [92 Baker St](https://nearbypermits.com/boston/address/92-baker-st/) | 0.25 mi N | Alteration or repair | Remove and replace 1 entry door; like for like size; no structural changes | $16,442 | [SF1879303](https://nearbypermits.com/boston/permit/SF1879303/) |
| Aug 7, 2026 | [106 Eastwood Cc](https://nearbypermits.com/boston/address/106-eastwood-cc/) | 0.20 mi W | Electrical | 2nd and 3rd floor addition, service upgrade | $7,000 | [E1869315](https://nearbypermits.com/boston/permit/E1869315/) |
| Jul 30, 2026 | [108 Glenellen Rd](https://nearbypermits.com/boston/address/108-glenellen-rd/) | 0.25 mi S | Alteration or repair | Renovations of existing kitchen and bathrooms. No change to building footprint. | $100,000 | [SF1852696](https://nearbypermits.com/boston/permit/SF1852696/) |
| Jul 21, 2026 | [10 Altacrest Rd](https://nearbypermits.com/boston/address/10-altacrest-rd/) | 0.19 mi NE | Alteration or repair | Air sealing, weather strip & sweep for doors, fiberglass for rim joist, insulate basement door, & blown in cellulose for exterior walls | $3,474 | [SF1869950](https://nearbypermits.com/boston/permit/SF1869950/) |
| Jul 20, 2026 | [29 Woodbrier Rd](https://nearbypermits.com/boston/address/29-woodbrier-rd/) | 0.24 mi NE | Alteration or repair | Remove 9 existing windows and replace with 9 new windows No structural work | $13,690 | [SF1864250](https://nearbypermits.com/boston/permit/SF1864250/) |
| Jul 17, 2026 | [23 Wedgemere Rd](https://nearbypermits.com/boston/address/23-wedgemere-rd/) | 0.21 mi E | Plumbing | Customer is adding second floor to house with new full bathroom. Roughing in toilet, lav and shower with shower valve. Bringing existing stack through roof. | $5,600 | [PL1873942](https://nearbypermits.com/boston/permit/PL1873942/) |
| Jul 15, 2026 | [99 Laurie Av](https://nearbypermits.com/boston/address/99-laurie-av/) | 0.21 mi NW | Plumbing | Replace a gas fired water heater | $950 | [G1871836](https://nearbypermits.com/boston/permit/G1871836/) |
| Jul 14, 2026 | [99 Laurie Av](https://nearbypermits.com/boston/address/99-laurie-av/) | 0.21 mi NW | Plumbing | Replace a gas fired water heater | $950 | [PL1871842](https://nearbypermits.com/boston/permit/PL1871842/) |
| Jun 15, 2026 | [118 Keystone St](https://nearbypermits.com/boston/address/118-keystone-st/) | 0.21 mi S | Roofing | Strip roof shingles, and re-roof per GAF code (14 SQ), using 6' of ice and water shield. | $15,833 | [SF1700443](https://nearbypermits.com/boston/permit/SF1700443/) |
| Jun 15, 2026 | [23 Wedgemere Rd](https://nearbypermits.com/boston/address/23-wedgemere-rd/) | 0.21 mi E | Electrical | Install a temporary electrical service off the home for a home addition. | $1,800 | [ETS1859657](https://nearbypermits.com/boston/permit/ETS1859657/) |
| Jun 9, 2026 | [12 Bronx Rd](https://nearbypermits.com/boston/address/12-bronx-rd/) | 0.23 mi NE | Alteration or repair | Deck. Interior renovation & finishing of existing basement Scope: construction of a finished TV/family rm, new bathrm & enclosed mech rm. Work to include framing, insulation drywall, flooring, painting, electrical and lighting installation, plumbing fixtures/connections, Existing structure to remain | $20,000 | [ALT1850287](https://nearbypermits.com/boston/permit/ALT1850287/) |
| May 21, 2026 | [127 Laurie Av](https://nearbypermits.com/boston/address/127-laurie-av/) | 0.24 mi NW | Electrical | wire new inground swimming pool. | $7,000 | [E1851781](https://nearbypermits.com/boston/permit/E1851781/) |
| May 18, 2026 | [127 Laurie Av](https://nearbypermits.com/boston/address/127-laurie-av/) | 0.24 mi NW | Pool or spa | Installation of a 9' x 16' Fiberglass Swimming Pool | $71,000 | [ALT1824447](https://nearbypermits.com/boston/permit/ALT1824447/) |
| May 7, 2026 | [11 Woodbrier Rd](https://nearbypermits.com/boston/address/11-woodbrier-rd/) | 0.23 mi NE | Electrical | Service change 100 to 200 amps | $5,000 | [E1846276](https://nearbypermits.com/boston/permit/E1846276/) |
| May 4, 2026 | [127 Laurie Av](https://nearbypermits.com/boston/address/127-laurie-av/) | 0.24 mi NW | Plumbing | pool heater install | $3,500 | [G1843863](https://nearbypermits.com/boston/permit/G1843863/) |

## More on this street

Other addresses on Keystone St with permits, nearest house number first:

- [19 Keystone St](https://nearbypermits.com/boston/address/19-keystone-st/): newest permit Jul 14, 2025
- [24 Keystone St](https://nearbypermits.com/boston/address/24-keystone-st/): newest permit Jan 20, 2026
- [25 Keystone St](https://nearbypermits.com/boston/address/25-keystone-st/): newest permit May 14, 2025
- [14 Keystone St](https://nearbypermits.com/boston/address/14-keystone-st/): newest permit Feb 18, 2026
- [29 Keystone St](https://nearbypermits.com/boston/address/29-keystone-st/): newest permit Feb 5, 2026
- [50 Keystone St](https://nearbypermits.com/boston/address/50-keystone-st/): newest permit Jan 26, 2026
- [59 Keystone St](https://nearbypermits.com/boston/address/59-keystone-st/): newest permit Dec 9, 2025
- [66 Keystone St](https://nearbypermits.com/boston/address/66-keystone-st/): newest permit Oct 20, 2025
- [76 Keystone St](https://nearbypermits.com/boston/address/76-keystone-st/): newest permit Aug 5, 2025
- [91 Keystone St](https://nearbypermits.com/boston/address/91-keystone-st/): newest permit Jan 2, 2026

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 11:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, the one permit at this address and 52 nearby: https://nearbypermits.com/boston/address/20-keystone-st/