# Building permits at 99 Walnut Av, Boston, MA The biggest project within a quarter mile since May 1: a $631,638 alteration or repair at 4-18 Crispus Attucks Pl, permitted Aug 7. One permit on record here. The newest, Aug 26: Complete interior demo. Within a quarter mile, the city has issued 50 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 26, 2026 | Alteration or repair | Complete interior demo | $27,000 | [SF1894859](https://nearbypermits.com/boston/permit/SF1894859/) | ## Within ¼ mi since May 1, 2026 50 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 170 ft SW | Plumbing | Replace heating boiler | $5,000 | [PL1906249](https://nearbypermits.com/boston/permit/PL1906249/) | | Aug 17, 2026 | [90 Walnut Av](https://nearbypermits.com/boston/address/90-walnut-av/) | 140 ft E | Alteration or repair | update all baths, and kitchen | $10,000 | [SF1888873](https://nearbypermits.com/boston/permit/SF1888873/) | | Jun 24, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 170 ft SW | Electrical | Replace bathroom fan with panasonic bath fan and air cycler smart switch for weatherization work. | $1,200 | [E1863731](https://nearbypermits.com/boston/permit/E1863731/) | | May 7, 2026 | [1 Leslie Pk](https://nearbypermits.com/boston/address/1-leslie-pk/) | 65 ft W | Plumbing | Roughing 1 kitchen that's it | $2,000 | [PL1846145](https://nearbypermits.com/boston/permit/PL1846145/) | | May 4, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 170 ft SW | Alteration or repair | Blown in cellulose insulation at exterior walls, air sealing and weatherization. | $23,954 | [SF1844614](https://nearbypermits.com/boston/permit/SF1844614/) | | May 1, 2026 | [1 Leslie Pk](https://nearbypermits.com/boston/address/1-leslie-pk/) | 65 ft W | Electrical | New kitchen on second floor | $4,500 | [E1841472](https://nearbypermits.com/boston/permit/E1841472/) | ### This block (250 to 1,000 ft), 18 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 540 ft S | Mechanical (HVAC) | Installing 6 zone ductless mini split system | $17,000 | [SF1904115](https://nearbypermits.com/boston/permit/SF1904115/) | | Sep 30, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 540 ft S | Electrical | Wiring condenser for ductless mini split system | $1,500 | [E1904103](https://nearbypermits.com/boston/permit/E1904103/) | | Sep 28, 2026 | [31 Dale St](https://nearbypermits.com/boston/address/31-dale-st/) | 610 ft SE | Electrical | 300 amps service upgrade run circuits for 2 hot water heaters run circuit for condenser run circuit for air handler install bathroom vent fan | $10,000 | [E1904743](https://nearbypermits.com/boston/permit/E1904743/) | | Sep 23, 2026 | [120 Walnut Av](https://nearbypermits.com/boston/address/120-walnut-av/) | 400 ft S | Roofing | Church Slate Roof Restoration/Replacement (for affected area only) | $10,000 | [SF1902172](https://nearbypermits.com/boston/permit/SF1902172/) | | Sep 18, 2026 | [46 Catawba St](https://nearbypermits.com/boston/address/46-catawba-st/) | 760 ft SE | Alteration or repair | FRONT PORCH REPAIR- Remove existing wood rails, flooring, frame as needed, install new trex flooring, pvc parts, vinyl railing, replace granite step with concrete pad, install door on side of porch. | $16,800 | [SF1902105](https://nearbypermits.com/boston/permit/SF1902105/) | | Sep 8, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 540 ft S | Alteration or repair | Install 23 sq replacement siding - no structural work | $26,417 | [SF1897242](https://nearbypermits.com/boston/permit/SF1897242/) | | Sep 2, 2026 | [39 Catawba St](https://nearbypermits.com/boston/address/39-catawba-st/) | 670 ft SE | Alteration or repair | FRONT PORCH REPAIR remove existing wood rails, flooring, frame as needed, install new wood flooring, steel rails and privacy panel | $3,800 | [SF1896896](https://nearbypermits.com/boston/permit/SF1896896/) | | Aug 27, 2026 | [25 Laurel St](https://nearbypermits.com/boston/address/25-laurel-st/) | 650 ft S | Roofing | Chimney removal -FRONT chimney on asphalt roof. | $3,499 | [SF1891346](https://nearbypermits.com/boston/permit/SF1891346/) | | Aug 21, 2026 | [115 Dale St](https://nearbypermits.com/boston/address/115-dale-st/) | 850 ft W | Electrical | rewire unit take out aluminum wiring and wire with coper wire unit 6 | $12,000 | [E1890963](https://nearbypermits.com/boston/permit/E1890963/) | | Aug 12, 2026 | [31 Dale St](https://nearbypermits.com/boston/address/31-dale-st/) | 610 ft SE | Alteration or repair | New electrical service, duct work repair, heat pump installation, hot water heater replacement, | $74,145 | [SF1879820](https://nearbypermits.com/boston/permit/SF1879820/) | | Aug 4, 2026 | [25 Catawba St](https://nearbypermits.com/boston/address/25-catawba-st/) | 810 ft SE | Electrical | 400 amp Service broke from the couplin emergency Eversource came out and cut the power work was completed and ready to put back power back on. | $1,800 | [E1882085](https://nearbypermits.com/boston/permit/E1882085/) | | Aug 2, 2026 | [9 Sherman St](https://nearbypermits.com/boston/address/9-sherman-st/) | 720 ft E | Alteration or repair | Remove and replace 2 windows, like for like, same size, no structural changes | $3,994 | [SF1879560](https://nearbypermits.com/boston/permit/SF1879560/) | | Jul 5, 2026 | [6 Laurel St](https://nearbypermits.com/boston/address/6-laurel-st/) | 570 ft SE | Alteration or repair | insulating attic and exterior walls with blown in insulation | $13,141 | [SF1867863](https://nearbypermits.com/boston/permit/SF1867863/) | | Jul 5, 2026 | [30 Circuit St](https://nearbypermits.com/boston/address/30-circuit-st/) | 510 ft N | Roofing | - Remove and replaces home's current top layer of roof. - Install new drip edge along the entire entire perimeter. - Install new 060 commercial grade rubber roofing to the entire roof with new sea tape - Remove one chimney. - Install new pipe jacks and flashing to roof as needed. - Remove debris | $16,000 | [SF1862251](https://nearbypermits.com/boston/permit/SF1862251/) | | Jun 11, 2026 | [3 Hestia Pk](https://nearbypermits.com/boston/address/3-hestia-pk/) | 470 ft N | Alteration or repair | Demo all water damaged walls in an exist 2fam. replace all fire damaged wood as needed, Repair including finished basement, 2 kitchens, bathrooms and existing finished attic, roof repair replace joist. Partition walls. Electrical, plumbing, HVAC, insulation, all finishes, window siding, Deck repair | $374,275 | [SF1859603](https://nearbypermits.com/boston/permit/SF1859603/) | | May 15, 2026 | [91 Regent St](https://nearbypermits.com/boston/address/91-regent-st/) | 830 ft NW | Roofing | Emergency Repair: the slate hip caps on all the hip locations around the building are failing and creating a hazard at the sidewalk, ADA ramp. Remove existing slate hip caps, make repairs to wood below, install metal hip caps over all hip locations fastened through the slate and into the roof deck | $29,850 | [SF1848669](https://nearbypermits.com/boston/permit/SF1848669/) | | May 14, 2026 | [150 Martin Luther King Jr Bl](https://nearbypermits.com/boston/address/150-martin-luther-king-jr-bl/) | 880 ft W | Other | Setting up a hexagon, (2) 20x20, and (2) 30x30 tents for the ymca summer program | $20,670 | [SF1848185](https://nearbypermits.com/boston/permit/SF1848185/) | | May 4, 2026 | [3 Hestia Pk](https://nearbypermits.com/boston/address/3-hestia-pk/) | 470 ft N | Alteration or repair | Exterior board up of property due to a fire | $8,000 | [SF1829230](https://nearbypermits.com/boston/permit/SF1829230/) | ### Farther (1,000 ft to ¼ mi), 26 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [18 Dunreath St](https://nearbypermits.com/boston/address/18-dunreath-st/) | 0.25 mi E | Fire systems | Installation of (1) Fire-Lite ES-50X, (1) Starlink Cellular Communicator, (5) SD365 Smoke Detectors, (2) BG-12LX Pull-Stations, (5) MMF-300 Monitor Modules and (3) P2RLED Horn Strobes. | $8,593 | [EFA1905098](https://nearbypermits.com/boston/permit/EFA1905098/) | | Sep 21, 2026 | [7 Harold Pk](https://nearbypermits.com/boston/address/7-harold-pk/) | 0.23 mi SW | Alteration or repair | Scrape old siding and install new hardie plank siding, install new asphalt roof shingles, new windows, repair back porche, install new florring, new doors, kitchen and bathroom and interior paint, | $350,000 | [SF1900603](https://nearbypermits.com/boston/permit/SF1900603/) | | Aug 31, 2026 | [30-40 Crispus Attucks Pl](https://nearbypermits.com/boston/address/30--40-crispus-attucks-pl/) | 0.21 mi NW | Electrical | 30-40 Crispus Attucks Place: Replacing meter bank for whole building and adding (1) switch and overhead fixture (if not already present), replacing (1) exterior GFCI, Removing (2) existing ceiling fans, and wiring (1) new ERV in every unit. | $15,000 | [E1895579](https://nearbypermits.com/boston/permit/E1895579/) | | Aug 31, 2026 | [4-18 Crispus Attucks Pl](https://nearbypermits.com/boston/address/4--18-crispus-attucks-pl/) | 0.24 mi NW | Electrical | 4-16 Crispus Attucks Place: Replacing meter stack for whole building, and adding (1) switch and overhead fixture (if not already present), replacing (1) exterior GFCI, removing (2) ceiling fans, and wiring (1) new ERV in every unit. | $15,000 | [E1895577](https://nearbypermits.com/boston/permit/E1895577/) | | Aug 31, 2026 | [18-28 Crispus Attucks Pl](https://nearbypermits.com/boston/address/18--28-crispus-attucks-pl/) | 0.22 mi NW | Electrical | 18-28 Crispus Attucks Place: Replacing meter stack for whole building, and wiring (1) new switch and overhead light (if not already present), replacing (1) exterior GFCI, disconnecting (2) fans, and wiring (1) new ERV in all units. | $15,000 | [E1895574](https://nearbypermits.com/boston/permit/E1895574/) | | Aug 25, 2026 | [2691 Washington St](https://nearbypermits.com/boston/address/2691-washington-st/) | 0.24 mi NW | Plumbing | Work to be done at 2693 Washington;REPLACEING GAS WATER HEATER | $4,500 | [PL1893976](https://nearbypermits.com/boston/permit/PL1893976/) | | Aug 25, 2026 | [2691 Washington St](https://nearbypermits.com/boston/address/2691-washington-st/) | 0.24 mi NW | Plumbing | Work to be done at 2693 washington;replacing flexible gas pipe with hard pipe | $4,500 | [G1893980](https://nearbypermits.com/boston/permit/G1893980/) | | Aug 24, 2026 | [2691 Washington St](https://nearbypermits.com/boston/address/2691-washington-st/) | 0.24 mi NW | Electrical | Rewiring of a hot water heater | $750 | [E1889546](https://nearbypermits.com/boston/permit/E1889546/) | | Aug 17, 2026 | [24 Dabney St](https://nearbypermits.com/boston/address/24-dabney-st/) | 0.23 mi NE | Electrical | Replace meter sockets and renovated interiors as requested by owner | $5,000 | [E1888609](https://nearbypermits.com/boston/permit/E1888609/) | | Aug 17, 2026 | [22 Dabney St](https://nearbypermits.com/boston/address/22-dabney-st/) | 0.23 mi N | Electrical | Replace meter sockets and renovated interiors as requested by owner | $5,000 | [E1888606](https://nearbypermits.com/boston/permit/E1888606/) | | Aug 17, 2026 | [20 Dabney St](https://nearbypermits.com/boston/address/20-dabney-st/) | 0.23 mi N | Electrical | Replace meter sockets and renovated interiors as requested by owner | $5,000 | [E1888605](https://nearbypermits.com/boston/permit/E1888605/) | | Aug 17, 2026 | [18 Dabney St](https://nearbypermits.com/boston/address/18-dabney-st/) | 0.23 mi N | Electrical | Replace meter sockets and renovate interior as requested by owner/contractor | $5,000 | [E1887710](https://nearbypermits.com/boston/permit/E1887710/) | | Aug 17, 2026 | [16 Dabney St](https://nearbypermits.com/boston/address/16-dabney-st/) | 0.23 mi N | Electrical | Replace meter sockets and renovate interior as requested by owner/contractor | $5,000 | [E1887704](https://nearbypermits.com/boston/permit/E1887704/) | | Aug 17, 2026 | [14 Dabney St](https://nearbypermits.com/boston/address/14-dabney-st/) | 0.23 mi N | Electrical | Replace meter sockets and renovate interior as requested by owner/contractor | $5,000 | [E1887696](https://nearbypermits.com/boston/permit/E1887696/) | | Aug 7, 2026 | [4-18 Crispus Attucks Pl](https://nearbypermits.com/boston/address/4--18-crispus-attucks-pl/) | 0.24 mi NW | Alteration or repair | Siding, windows, and ERV's in 7 units | $631,638 | [SF1884018](https://nearbypermits.com/boston/permit/SF1884018/) | | Aug 7, 2026 | [18-28 Crispus Attucks Pl](https://nearbypermits.com/boston/address/18--28-crispus-attucks-pl/) | 0.22 mi NW | Alteration or repair | Supply and Install new windows, siding, and ERV's in 6 units | $541,404 | [SF1884006](https://nearbypermits.com/boston/permit/SF1884006/) | | Aug 7, 2026 | [2691 Washington St](https://nearbypermits.com/boston/address/2691-washington-st/) | 0.24 mi NW | Alteration or repair | - Utility Room: Fire restoration, including framing and replacing one I-joist. - Front Door: Installation of a new front door. - Foyer: Repairing the foyer ceiling. - Exterior: Reinstalling siding and installing windows. * Work to be done at secondary address 2693 Washington* | $12,990 | [SF1881743](https://nearbypermits.com/boston/permit/SF1881743/) | | Jul 14, 2026 | [24 Dabney St](https://nearbypermits.com/boston/address/24-dabney-st/) | 0.23 mi NE | Alteration or repair | Remove,repair,and reinstall existing fire balcony. Repair damaged CMU party wall. Repair,replace damaged structural members as per structural details. Work as per plans. | $10,000 | [SF1867179](https://nearbypermits.com/boston/permit/SF1867179/) | | Jul 14, 2026 | [22 Dabney St](https://nearbypermits.com/boston/address/22-dabney-st/) | 0.23 mi N | Alteration or repair | Remove,repair and reinstall existing fire balcony. Repair damaged CMU party wall. Repair,replace damaged structural members as per structural details. Work as per plans. | $10,000 | [SF1867166](https://nearbypermits.com/boston/permit/SF1867166/) | | Jul 14, 2026 | [20 Dabney St](https://nearbypermits.com/boston/address/20-dabney-st/) | 0.23 mi N | Alteration or repair | Remove, repair, and reinstall existing fire balcony. Repair damaged CMU party wall. Repair,replace damaged structural members as per structural details. Work as per plans. | $10,000 | [SF1867151](https://nearbypermits.com/boston/permit/SF1867151/) | | Jul 14, 2026 | [18 Dabney St](https://nearbypermits.com/boston/address/18-dabney-st/) | 0.23 mi N | Alteration or repair | Remove,repair, and reinstall existing fire balcony. Repair damaged CMU party wall. Repair, replace damaged Structural members as per structural details. Work as per plans. | $10,000 | [SF1867139](https://nearbypermits.com/boston/permit/SF1867139/) | | Jul 14, 2026 | [16 Dabney St](https://nearbypermits.com/boston/address/16-dabney-st/) | 0.23 mi N | Alteration or repair | Remove,repair,and reinstall existing fire balcony. Repair damaged CMU party wall. Repair, replace damaged structural members as per structural details. Work as per plans. | $10,000 | [SF1867121](https://nearbypermits.com/boston/permit/SF1867121/) | | Jul 14, 2026 | [14 Dabney St](https://nearbypermits.com/boston/address/14-dabney-st/) | 0.23 mi N | Alteration or repair | Remove,repair, and reinstall existing fire balcony. Repair damaged CMU party wall. Repair,replace damaged structural members as per structural details. Work as per plans. | $10,000 | [SF1867105](https://nearbypermits.com/boston/permit/SF1867105/) | | Jul 9, 2026 | [30-40 Crispus Attucks Pl](https://nearbypermits.com/boston/address/30--40-crispus-attucks-pl/) | 0.21 mi NW | Alteration or repair | Supply and Install new windows, siding, and ERV's in 6 units | $541,404 | [SF1869204](https://nearbypermits.com/boston/permit/SF1869204/) | | Jun 11, 2026 | [2691 Washington St](https://nearbypermits.com/boston/address/2691-washington-st/) | 0.24 mi NW | Alteration or repair | Insulation work as part of the MASS Save program. Specifically for unit 2693 | $2,000 | [SF1858676](https://nearbypermits.com/boston/permit/SF1858676/) | | Jun 10, 2026 | [146-150 Charlame St](https://nearbypermits.com/boston/address/146--150-charlame-st/) | 0.19 mi SE | Electrical | Permit to restore utility power | $500 | [E1859775](https://nearbypermits.com/boston/permit/E1859775/) | ## More on this street Other addresses on Walnut Av with permits, nearest house number first: - [92 Walnut Av](https://nearbypermits.com/boston/address/92-walnut-av/): newest permit May 29, 2025 - [90 Walnut Av](https://nearbypermits.com/boston/address/90-walnut-av/): newest permit Aug 17, 2026 - [88 Walnut Av](https://nearbypermits.com/boston/address/88-walnut-av/): newest permit Sep 12, 2025 - [120 Walnut Av](https://nearbypermits.com/boston/address/120-walnut-av/): newest permit Sep 23, 2026 - [154 Walnut Av](https://nearbypermits.com/boston/address/154-walnut-av/): newest permit Aug 19, 2025 - [196 Walnut Av](https://nearbypermits.com/boston/address/196-walnut-av/): newest permit Oct 22, 2025 - [205 Walnut Av](https://nearbypermits.com/boston/address/205-walnut-av/): newest permit Oct 5, 2026 - [247 Walnut Av](https://nearbypermits.com/boston/address/247-walnut-av/): newest permit Sep 25, 2026 - [277 Walnut Av](https://nearbypermits.com/boston/address/277-walnut-av/): newest permit Oct 9, 2025 - [279 Walnut Av](https://nearbypermits.com/boston/address/279-walnut-av/): newest permit Sep 22, 2026 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-07 19:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 50 nearby: https://nearbypermits.com/boston/address/99-walnut-av/