# Building permits at 7 Walden St, Boston, MA

The biggest project within a quarter mile since May 1: a $499,991 alteration or repair at 91 Heath St, permitted Jul 29.

Five permits on record here. The newest, Nov 3, 2025: Remove shingles to decking. Within a quarter mile, the city has issued 55 more permits (52 projects) since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Nov 3, 2025 | Roofing | Remove shingles to decking; replace rotten wood as needed. Clean thoroughly. Install 6' ice & water shield at eaves, 8" drip edge, flashing at protrusions & valleys. Apply synthetic underlayment, Dynasty® shingles, ridge cap & vent, full starter shingles, 130?mph wind nails. | $12,900 | [SF1790501](https://nearbypermits.com/boston/permit/SF1790501/) |
| Aug 12, 2020 | Plumbing | Emergency repair to 2 unions on boilers | $500 | [G1100655](https://nearbypermits.com/boston/permit/G1100655/) |
| Nov 19, 2019 | Alteration or repair | Replace existing deck in kind. Install new composite decking and railings. | $34,745 | [SF1024467](https://nearbypermits.com/boston/permit/SF1024467/) |
| Jun 27, 2018 | Plumbing | replace boiler and water heater with a combi-boiler | $6,500 | [PL847899](https://nearbypermits.com/boston/permit/PL847899/) |
| Jun 27, 2018 | Plumbing | installing 2 combi boilers | $1,200 | [G847900](https://nearbypermits.com/boston/permit/G847900/) |

## Within ¼ mi since May 1, 2026

55 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 |
|---|---|---|---|---|---|---|
| Jul 28, 2026 | [6 Schiller St](https://nearbypermits.com/boston/address/6-schiller-st/) | 120 ft W | Plumbing | Remove and replace (3) combi boilers | $21,000 | [PL1874104](https://nearbypermits.com/boston/permit/PL1874104/) |
| Jul 28, 2026 | [6 Schiller St](https://nearbypermits.com/boston/address/6-schiller-st/) | 120 ft W | Plumbing | Remove and replace (3) combi boilers. | $21,000 | [G1874098](https://nearbypermits.com/boston/permit/G1874098/) |
| May 4, 2026 | [178 Heath St](https://nearbypermits.com/boston/address/178-heath-st/) | 75 ft N | Plumbing | Replacement of water heater | $4,000 | [PL1844529](https://nearbypermits.com/boston/permit/PL1844529/) |

### This block (250 to 1,000 ft), 36 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | [29 Lawn St](https://nearbypermits.com/boston/address/29-lawn-st/) | 460 ft N | Plumbing | Adding 2 half bath and 3 laundry for each floor. | $7,000 | [PL1902945](https://nearbypermits.com/boston/permit/PL1902945/) |
| Sep 29, 2026 | [64-66 Lawn St](https://nearbypermits.com/boston/address/64--66-lawn-st/) | 680 ft NW | Plumbing | Replacement of like-for-like electric water heater at 66 Lawn Street | $1,349 | [PL1904641](https://nearbypermits.com/boston/permit/PL1904641/) |
| Sep 28, 2026 | [110-120 Fisher Av](https://nearbypermits.com/boston/address/110--120-fisher-av/) | 710 ft N | Electrical | Make necessary modifications and final connections of existing wiring and equipment associated with the emergency generator system. | $21,000 | [E1904428](https://nearbypermits.com/boston/permit/E1904428/) |
| Sep 25, 2026 | [20 Edge Hill St](https://nearbypermits.com/boston/address/20-edge-hill-st/) | 820 ft SW | Electrical | Forge will install and wire a dual fuel heat pump system. This system will consist of one outdoor condenser and one cased heat pump coil which will be mounted to the existing furnace and adapted into the existing ductwork. Forge will also be doing a service upgrade of 100 AMP to 200 AMP. | $3,275 | [E1904081](https://nearbypermits.com/boston/permit/E1904081/) |
| Sep 21, 2026 | [91 Heath St](https://nearbypermits.com/boston/address/91-heath-st/) | 850 ft NE | Fire systems | Install 18 Hons strobe device,1 Pull station and Annunciator | $5,000 | [EFA1902498](https://nearbypermits.com/boston/permit/EFA1902498/) |
| Sep 3, 2026 | [73 Walden St](https://nearbypermits.com/boston/address/73-walden-st/) | 810 ft S | Fence, wall or deck | Removal of 12ft x 6ft x 9ft shed structure | $3,100 | [SF1897452](https://nearbypermits.com/boston/permit/SF1897452/) |
| Aug 31, 2026 | [25 Round Hill St](https://nearbypermits.com/boston/address/25-round-hill-st/) | 500 ft S | Alteration or repair | Second floor and attic insulation. 3"R22 of closed cell spray foam to all outside walls. 5"R38 of closed cell spray foam to the entire roof deck. | $14,500 | [SF1882637](https://nearbypermits.com/boston/permit/SF1882637/) |
| Aug 21, 2026 | [31 Gay Head St](https://nearbypermits.com/boston/address/31-gay-head-st/) | 340 ft S | Alteration or repair | Change occupancy from three-family to four-family. Build a new kitchen on the ground floor, new sprinkler, and fire alarm systems. [ePlan] | $50,000 | [ALT1195079](https://nearbypermits.com/boston/permit/ALT1195079/) |
| Aug 17, 2026 | [154-162 Heath St](https://nearbypermits.com/boston/address/154--162-heath-st/) | 280 ft E | Electrical | Low Voltage HVAC Control Wiring | $50,000 | [ELV1886728](https://nearbypermits.com/boston/permit/ELV1886728/) |
| Aug 6, 2026 | [3 Edge Hill St](https://nearbypermits.com/boston/address/3-edge-hill-st/) | 620 ft SW | Electrical | Installation of a new high voltage electrical for (1) system. Includes: - New disconnect with surge protector built-in - New GFCI - New dedicated circuit - New wiring for the HVAC system | $1,050 | [E1882606](https://nearbypermits.com/boston/permit/E1882606/) |
| Aug 5, 2026 | [91 Heath St](https://nearbypermits.com/boston/address/91-heath-st/) | 850 ft NE | Electrical | Wiring a dog care facility Kitchen, laundry, office and replace a 200A panel | $15,000 | [E1880527](https://nearbypermits.com/boston/permit/E1880527/) |
| Aug 3, 2026 | [200 Heath St](https://nearbypermits.com/boston/address/200-heath-st/) | 610 ft W | Electrical | Disconnect & make safe feeds for (2) condensers & fans for existing freezer & cooler. Extend existing feeds for (2) new condensers on exterior wall & reconnect feeds for new fans & lighting in new freezer & cooler. Add a convenience outlet near exterior condensers. | $15,000 | [E1881054](https://nearbypermits.com/boston/permit/E1881054/) |
| Jul 29, 2026 | [101 Heath St](https://nearbypermits.com/boston/address/101-heath-st/) | 750 ft E | Plumbing | install water heater and mop sink | $400 | [PL1877506](https://nearbypermits.com/boston/permit/PL1877506/) |
| Jul 29, 2026 | [91 Heath St](https://nearbypermits.com/boston/address/91-heath-st/) | 850 ft NE | Alteration or repair | Change of occupancy from office, warehouse and light manufacturing to office, warehouse and dog daycare. Commercial tenant fit-out for dog daycare, boarding, grooming, and training facility. Includes interior renovations, non-structural partitions, plumbing, electrical, HVAC, fire alarm and sprinkle | $499,991 | [ALT1863382](https://nearbypermits.com/boston/permit/ALT1863382/) |
| Jul 28, 2026 | [25 Gay Head St](https://nearbypermits.com/boston/address/25-gay-head-st/) | 410 ft S | Plumbing | Remove and replace (2) combi boilers | $14,000 | [PL1874161](https://nearbypermits.com/boston/permit/PL1874161/) |
| Jul 28, 2026 | [25 Gay Head St](https://nearbypermits.com/boston/address/25-gay-head-st/) | 410 ft S | Plumbing | Remove and replace (2) combi boilers | $14,000 | [G1874159](https://nearbypermits.com/boston/permit/G1874159/) |
| Jul 28, 2026 | [13 Round Hill St](https://nearbypermits.com/boston/address/13-round-hill-st/) | 730 ft S | Plumbing | Remove and replace (2) combi boilers | $14,000 | [PL1874154](https://nearbypermits.com/boston/permit/PL1874154/) |
| Jul 28, 2026 | [13 Round Hill St](https://nearbypermits.com/boston/address/13-round-hill-st/) | 730 ft S | Plumbing | Remove and replace (2) combi boilers | $14,000 | [G1874122](https://nearbypermits.com/boston/permit/G1874122/) |
| Jul 23, 2026 | [31 Round Hill St](https://nearbypermits.com/boston/address/31-round-hill-st/) | 440 ft SW | Roofing | Remove and replace asphalt shingles. Like to like materials. | $12,950 | [SF1873797](https://nearbypermits.com/boston/permit/SF1873797/) |
| Jul 23, 2026 | [111 Heath St](https://nearbypermits.com/boston/address/111-heath-st/) | 600 ft NE | Alteration or repair | Structural Repairs of Existing Beam and Foundation Sill | $21,550 | [ALT1873450](https://nearbypermits.com/boston/permit/ALT1873450/) |
| Jul 22, 2026 | [89 Heath St](https://nearbypermits.com/boston/address/89-heath-st/) | 920 ft E | Plumbing | installation of new gas piping for 2 rooftop furnaces & 1 rice steamer | $5,000 | [G1874376](https://nearbypermits.com/boston/permit/G1874376/) |
| Jul 16, 2026 | [91 Heath St](https://nearbypermits.com/boston/address/91-heath-st/) | 850 ft NE | Plumbing | Plumbling renovation | $15,000 | [PL1873324](https://nearbypermits.com/boston/permit/PL1873324/) |
| Jul 15, 2026 | [101 Heath St](https://nearbypermits.com/boston/address/101-heath-st/) | 750 ft E | Alteration or repair | Changing occupancy from office space to barbershop. [ePlans] | $20,000 | [ALT1843178](https://nearbypermits.com/boston/permit/ALT1843178/) |
| Jul 7, 2026 | [12 Sunnyside St](https://nearbypermits.com/boston/address/12-sunnyside-st/) | 870 ft SW | Electrical | Wire a single zone 3.6 KW heat pump/AC system. | $1,250 | [E1867951](https://nearbypermits.com/boston/permit/E1867951/) |
| Jul 2, 2026 | [12 Sunnyside St](https://nearbypermits.com/boston/address/12-sunnyside-st/) | 870 ft SW | Mechanical (HVAC) | Install Custom Comfort, Extreme Heat Single Zone Mini Split System. 12k Heat Pump Condenser at Ground Level on the Right Side of the House and 12k Wall Mounted Unit in the Basement. | $10,000 | [SF1865557](https://nearbypermits.com/boston/permit/SF1865557/) |
| Jun 26, 2026 | [89 Heath St](https://nearbypermits.com/boston/address/89-heath-st/) | 920 ft E | Fire systems | Change existing fire alarm system to an addressable system. | $19,500 | [EFA1863538](https://nearbypermits.com/boston/permit/EFA1863538/) |
| Jun 16, 2026 | [219 Heath St](https://nearbypermits.com/boston/address/219-heath-st/) | 640 ft NW | Electrical | Installation of new handhole in sidewalk at 215-221 Heath Street. Install 30 amp underground service from Eversource Manhole. Install #6 conductors and 30 Amp Fused H-tap in Handhole for future Crown Castle pole. Dor_exp-003 | $1,500 | [E1861520](https://nearbypermits.com/boston/permit/E1861520/) |
| Jun 10, 2026 | [25 Round Hill St](https://nearbypermits.com/boston/address/25-round-hill-st/) | 500 ft S | Fence, wall or deck | Permit is for cost difference in refence to SF1770868 per inspectors instructions; | $45,000 | [SF1859986](https://nearbypermits.com/boston/permit/SF1859986/) |
| Jun 8, 2026 | [123-127 Heath St](https://nearbypermits.com/boston/address/123--127-heath-st/) | 460 ft NE | Alteration or repair | Heath Street Partners, LLC, as owner of the property located at 127 Heath Street with Parcel ID: 1001281000 (the "Premises") desires to file Long Form Applications to subdivide the Premises into eight (8) separate parcels, as per the submitted plans (the "Subdivision"). The 7 premises in the residen | Not listed | [ALT1823395](https://nearbypermits.com/boston/permit/ALT1823395/) |
| May 14, 2026 | [18 Lawn St](https://nearbypermits.com/boston/address/18-lawn-st/) | 350 ft N | Alteration or repair | Roof Remodeling: Replace roofing, clear old roof, install insultaion, add metal fleche, and new rubber. Deck Renovation: New flooring, new railing, new pvc finish. | $31,000 | [SF1847206](https://nearbypermits.com/boston/permit/SF1847206/) |
| May 12, 2026 | [148 Minden St](https://nearbypermits.com/boston/address/148-minden-st/) | 710 ft W | Fence, wall or deck | Remove and replace existing deck, stairs, railings, framing, sonotubes, posts, and colums. Install new 12"x4' sonotubes, framing, comoposite decking, PVC railings, posts/post sleeves, and stairs. Paint perimeter framing and post bases. | $41,900 | [SF1848648](https://nearbypermits.com/boston/permit/SF1848648/) |
| May 12, 2026 | [40 Day St](https://nearbypermits.com/boston/address/40-day-st/) | 760 ft W | Fence, wall or deck | Remove and replace existing deck, stairs, railings, framing, sonotubes, posts, and colums. Install new 12"x4" sonotubes, framing, composite decking, PVC railings, posts/post sleeves, and stairs. Paint perimeter framing and post bases. | $49,800 | [SF1848645](https://nearbypermits.com/boston/permit/SF1848645/) |
| May 12, 2026 | [13 Round Hill St](https://nearbypermits.com/boston/address/13-round-hill-st/) | 730 ft S | Fence, wall or deck | Remove and replace existing deck, stairs, railings, framing, sonotubes, posts, and colums. Install new 12" x 4" sonotubes, framing, composite decking, PVC railings, posts/post sleeves, and stairs. Paint perimieter framing and post bases. | $46,500 | [SF1848640](https://nearbypermits.com/boston/permit/SF1848640/) |
| May 12, 2026 | [115-115a Fisher Av](https://nearbypermits.com/boston/address/115--115a-fisher-av/) | 890 ft N | Plumbing | Replace shower valve and vanity | $2,500 | [PL1847361](https://nearbypermits.com/boston/permit/PL1847361/) |
| May 6, 2026 | [30-40 Bickford St](https://nearbypermits.com/boston/address/30--40-bickford-st/) | 990 ft E | Electrical | Install line side tap, 25' rule in existing service Install 200 amp meter main with smart meter Install new conduits, supports, fittings and conductors from electrical room to roof where new Mobile platform will be Install new Outdoor panel on new platform Install all conduits, fittings, supports | $45,000 | [E1845468](https://nearbypermits.com/boston/permit/E1845468/) |
| May 5, 2026 | [115-115a Fisher Av](https://nearbypermits.com/boston/address/115--115a-fisher-av/) | 890 ft N | Electrical | demo and make safe for others electric wires in the bathroom first floor | $600 | [E1845636](https://nearbypermits.com/boston/permit/E1845636/) |

### Farther (1,000 ft to ¼ mi), 16 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | [330 Centre St](https://nearbypermits.com/boston/address/330-centre-st/) | 0.23 mi S | Plumbing | Installing new gas line for first and third floor. New line for first. Third is re test.; | $2,500 | [G1902738](https://nearbypermits.com/boston/permit/G1902738/) |
| Sep 4, 2026 | [315 Centre St](https://nearbypermits.com/boston/address/315-centre-st/) | 0.19 mi S | Plumbing | Relocation of gas line serving one range to accommodate its new location in conjunction with the new hood location. Approximately 15' of piping. | $1,000 | [G1897634](https://nearbypermits.com/boston/permit/G1897634/) |
| Aug 6, 2026 | [239 Parker Hill Av](https://nearbypermits.com/boston/address/239-parker-hill-av/) | 0.21 mi NE | Electrical | Diesel generator to Power Inflatables for duration of event | $339 | [E1883297](https://nearbypermits.com/boston/permit/E1883297/) |
| Jul 31, 2026 | [85 Walden St](https://nearbypermits.com/boston/address/85-walden-st/) | 0.19 mi S | Alteration or repair | Remove old stairs and dispose Reframe new steps New handrails both sides of stairs New 2x12 treads New risers | $4,750 | [SF1877546](https://nearbypermits.com/boston/permit/SF1877546/) |
| Jul 30, 2026 | [940-944 Parker St](https://nearbypermits.com/boston/address/940--944-parker-st/) | 0.23 mi E | Grading | The proposed work includes extending soil borings for subsurface soil exploration. This involves drilling and sampling in various locations of the site. | $10,700 | [SF1880273](https://nearbypermits.com/boston/permit/SF1880273/) |
| Jul 29, 2026 | [35 Creighton St](https://nearbypermits.com/boston/address/35-creighton-st/) | 0.22 mi SW | Alteration or repair | Interior water damage repair of existing building includes repair and patching of interior walls and ceilings (gypsum board/plasters as needed) and repair of existing floor areas, including replacement of damaged sections. The work is limited to like-kind repairs with on structural alterations. | $28,000 | [SF1873583](https://nearbypermits.com/boston/permit/SF1873583/) |
| Jul 28, 2026 | [10 Mozart St](https://nearbypermits.com/boston/address/10-mozart-st/) | 0.23 mi S | Electrical | Parks department event requiring generator | $500 | [ETS1878986](https://nearbypermits.com/boston/permit/ETS1878986/) |
| Jun 29, 2026 | [12 Fisher Av](https://nearbypermits.com/boston/address/12-fisher-av/) | 0.24 mi NE | Alteration or repair | Creation will remove & replace the existing staircase treads with new steel grating treads, replace the existing balusters with new steel balusters, reinforce & secure the existing steel landing, & apply primer & paint to the entire egress. | $9,500 | [SF1865031](https://nearbypermits.com/boston/permit/SF1865031/) |
| Jun 25, 2026 | [10 Westerly St](https://nearbypermits.com/boston/address/10-westerly-st/) | 0.20 mi SW | Electrical | low voltage for 3 units | $2,500 | [ELV1855334](https://nearbypermits.com/boston/permit/ELV1855334/) |
| Jun 25, 2026 | [10 Westerly St](https://nearbypermits.com/boston/address/10-westerly-st/) | 0.20 mi SW | Electrical | Complete rewire 3 family with service upgrade | $30,000 | [E1863770](https://nearbypermits.com/boston/permit/E1863770/) |
| Jun 16, 2026 | [12 Fisher Av](https://nearbypermits.com/boston/address/12-fisher-av/) | 0.24 mi NE | Alteration or repair | Repair exterior staircase consisting of four(4) steps located on the left side of the property. | $750 | [SF1859086](https://nearbypermits.com/boston/permit/SF1859086/) |
| Jun 8, 2026 | [3 Kenney St](https://nearbypermits.com/boston/address/3-kenney-st/) | 0.23 mi SW | Alteration or repair | Residential weatherization and air sealing with the Mass Save Prohgram. No structural changes. | $1,695 | [SF1852157](https://nearbypermits.com/boston/permit/SF1852157/) |
| Jun 3, 2026 | [35 Creighton St](https://nearbypermits.com/boston/address/35-creighton-st/) | 0.22 mi SW | Electrical | Water damage repair. Replace misc. lights in unit 101, hallway, office and run circuit to room 203 to separate power. Replace breakers as needed. *Go out on emergency for water damage and re-store power. | $5,000 | [E1856990](https://nearbypermits.com/boston/permit/E1856990/) |
| May 31, 2026 | [10 Westerly St](https://nearbypermits.com/boston/address/10-westerly-st/) | 0.20 mi SW | Fire systems | 120v smoke detectors for 3 units and whole fire alarm system for whole building | $10,000 | [EFA1855333](https://nearbypermits.com/boston/permit/EFA1855333/) |
| May 20, 2026 | [921-925 Parker St](https://nearbypermits.com/boston/address/921--925-parker-st/) | 0.20 mi E | Alteration or repair | Change of occupancy to include wireless communication. Installation of a telecommunications facility consisting of 3 sets of 3 panel antennas installed within faux chimneys, along with an equipment platform and equipment to be installed within an enclosure on the rooftop of the building. All antenna | $283,200 | [ALT1618473](https://nearbypermits.com/boston/permit/ALT1618473/) |
| May 1, 2026 | [251 Heath St](https://nearbypermits.com/boston/address/251-heath-st/) | 0.24 mi NW | Fire systems | Replace existing fire alarm system which is obsolete, with a new Edwards EST4 fire alarm panel, and associated devices for compatibility with the new system. Existing wiring and device locations will be utilized | $200,795 | [ALT1830311](https://nearbypermits.com/boston/permit/ALT1830311/) |

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 16:49 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 5 permits at this address and 55 nearby: https://nearbypermits.com/boston/address/7-walden-st/