# Building permits at 205 Walnut Av, Boston, MA The biggest project within a quarter mile since May 1: an $860,808 alteration or repair at 56-86 Codman Pk, permitted Jul 14. Three permits on record here. The newest, Sep 11: We are insulating the walls with cellulose insulation and insulating the rim joist with r-19 fiberglass. Within a quarter mile, the city has issued 56 more permits (53 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 11, 2026 | Alteration or repair | we are insulating the walls with cellulose insulation and insulating the rim joist with r-19 fiberglass | $6,170 | [SF1897702](https://nearbypermits.com/boston/permit/SF1897702/) | | Jul 22, 2026 | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID-1716860549) (Unit-1) | $1,000 | [SF1864746](https://nearbypermits.com/boston/permit/SF1864746/) | | Sep 8, 2011 | Alteration or repair | Blown cellulose insulation | $4,686 | [SF94356](https://nearbypermits.com/boston/permit/SF94356/) | ## Within ¼ mi since May 1, 2026 56 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 | |---|---|---|---|---|---|---| | Sep 8, 2026 | [107 Munroe St](https://nearbypermits.com/boston/address/107-munroe-st/) | 200 ft S | Electrical | half bathroom | $2,000 | [E1896394](https://nearbypermits.com/boston/permit/E1896394/) | | Aug 25, 2026 | [107 Munroe St](https://nearbypermits.com/boston/address/107-munroe-st/) | 200 ft S | Plumbing | New plumbing for a half bathroom. | $5,000 | [PL1891876](https://nearbypermits.com/boston/permit/PL1891876/) | | Jul 30, 2026 | [107 Munroe St](https://nearbypermits.com/boston/address/107-munroe-st/) | 200 ft S | Alteration or repair | we would like to add a half bath to the first floor living space which would include 1 toilet, 1 sink, and proper ventilation. | $9,000 | [SF1847636](https://nearbypermits.com/boston/permit/SF1847636/) | ### This block (250 to 1,000 ft), 28 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [2850 Washington St](https://nearbypermits.com/boston/address/2850-washington-st/) | 930 ft W | Solar | Rooftop solar 21 panels 8.61 kwdc no ESS | $42,735 | [E1904830](https://nearbypermits.com/boston/permit/E1904830/) | | Sep 25, 2026 | [247 Walnut Av](https://nearbypermits.com/boston/address/247-walnut-av/) | 750 ft SW | Electrical | Replace jaws in meter for Eversource AMI project | $2,000 | [E1891726](https://nearbypermits.com/boston/permit/E1891726/) | | Sep 21, 2026 | [7 Harold Pk](https://nearbypermits.com/boston/address/7-harold-pk/) | 430 ft SE | 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/) | | Sep 16, 2026 | [76 Munroe St](https://nearbypermits.com/boston/address/76-munroe-st/) | 770 ft SE | Plumbing | gas combi boiler install | $7,500 | [PL1901476](https://nearbypermits.com/boston/permit/PL1901476/) | | Sep 16, 2026 | [76 Munroe St](https://nearbypermits.com/boston/address/76-munroe-st/) | 770 ft SE | Plumbing | gas combi boiler install | $7,500 | [G1901471](https://nearbypermits.com/boston/permit/G1901471/) | | Sep 16, 2026 | [12-26 Crestwood Pk](https://nearbypermits.com/boston/address/12--26-crestwood-pk/) | 630 ft SE | Plumbing | #12 only - (2) boiler swaps + (1) DHW swap | $15,000 | [PL1901330](https://nearbypermits.com/boston/permit/PL1901330/) | | Sep 16, 2026 | [12-26 Crestwood Pk](https://nearbypermits.com/boston/address/12--26-crestwood-pk/) | 630 ft SE | Plumbing | #12 only - (2) boiler swaps + (1) DHW swap. | $15,000 | [G1901325](https://nearbypermits.com/boston/permit/G1901325/) | | Sep 10, 2026 | [28-38 Crestwood Pk](https://nearbypermits.com/boston/address/28--38-crestwood-pk/) | 760 ft SE | Plumbing | #38 Only - Remove (2) existing boilers + (1) water heater and install (2) new heating boilers + (1) indirect water heater. | $14,000 | [PL1899781](https://nearbypermits.com/boston/permit/PL1899781/) | | Sep 10, 2026 | [28-38 Crestwood Pk](https://nearbypermits.com/boston/address/28--38-crestwood-pk/) | 760 ft SE | Plumbing | Remove (2) existing boilers + (1) water heater and install (2) new heating boilers + (1) indirect water heater. | $14,000 | [G1899775](https://nearbypermits.com/boston/permit/G1899775/) | | Aug 17, 2026 | [139 Martin Luther King Jr Bl](https://nearbypermits.com/boston/address/139-martin-luther-king-jr-bl/) | 630 ft NW | Plumbing | replace tub to shower | $1,500 | [PL1887334](https://nearbypermits.com/boston/permit/PL1887334/) | | Aug 4, 2026 | [139 Martin Luther King Jr Bl](https://nearbypermits.com/boston/address/139-martin-luther-king-jr-bl/) | 630 ft NW | Other | tub to shower conversion in 2nd bathroom | $16,363 | [SF1865614](https://nearbypermits.com/boston/permit/SF1865614/) | | Jul 30, 2026 | [78 Harold St](https://nearbypermits.com/boston/address/78-harold-st/) | 560 ft S | Roofing | Gray EZTPO Roofing Replacement on lower back section of flat roof. Asphalt shingles replacement on back half of roof around skylight. Gutter and downspouts replacement on section where we are replacing the flat lower roof. | $8,699 | [SF1874772](https://nearbypermits.com/boston/permit/SF1874772/) | | Jul 28, 2026 | [108 Harold St](https://nearbypermits.com/boston/address/108-harold-st/) | 860 ft S | Electrical | Wire 3 ton outdoor condenser with disconnect and communication wire. | $1,000 | [E1878412](https://nearbypermits.com/boston/permit/E1878412/) | | Jul 14, 2026 | [33-35 Townsend St](https://nearbypermits.com/boston/address/33--35-townsend-st/) | 830 ft W | Alteration or repair | Unit A8 Install of all new windows Replacement of full roof with new ice and water replacement of all Pvc trim on rakes soffits and corner boards Install of new railing and duckboards on exterior decks Painting to body of building 2 coats install of all new storm doors | $292,122 | [SF1867872](https://nearbypermits.com/boston/permit/SF1867872/) | | Jul 1, 2026 | [95 Munroe St](https://nearbypermits.com/boston/address/95-munroe-st/) | 370 ft SE | Roofing | Strip and reroof | $22,000 | [SF1867963](https://nearbypermits.com/boston/permit/SF1867963/) | | Jun 29, 2026 | [54 Townsend St](https://nearbypermits.com/boston/address/54-townsend-st/) | 590 ft W | Plumbing | Replacement of gas water heater | $2,980 | [PL1865215](https://nearbypermits.com/boston/permit/PL1865215/) | | Jun 29, 2026 | [54 Townsend St](https://nearbypermits.com/boston/address/54-townsend-st/) | 590 ft W | Plumbing | Replacement of gas water heater | $2,980 | [G1865208](https://nearbypermits.com/boston/permit/G1865208/) | | Jun 29, 2026 | [52 Townsend St](https://nearbypermits.com/boston/address/52-townsend-st/) | 610 ft W | Alteration or repair | Change occupancy from 3 units to 4 units in conjunction with;ALT1564659 | Not listed | [ALT1863456](https://nearbypermits.com/boston/permit/ALT1863456/) | | Jun 29, 2026 | [50 Townsend St](https://nearbypermits.com/boston/address/50-townsend-st/) | 620 ft W | Alteration or repair | Change occupancy from 3 units to 4 units in conjunction with ALT1564659 | Not listed | [ALT1863455](https://nearbypermits.com/boston/permit/ALT1863455/) | | Jun 24, 2026 | [50-52 Townsend St](https://nearbypermits.com/boston/address/50--52-townsend-st/) | 620 ft W | Alteration or repair | Combine 50 Townsend with 52 Townsend into 1 building to be known as 50-52 Townsend St.;Change occupancy from a 6 family to an 8 family to include 2 units in the basement &; Subdivide to original 50 and 52 Townsend. | $300,000 | [ALT1564659](https://nearbypermits.com/boston/permit/ALT1564659/) | | Jun 11, 2026 | [151 Townsend St](https://nearbypermits.com/boston/address/151-townsend-st/) | 960 ft SE | Alteration or repair | Change the legal occupancy from a two-family dwelling to a four family-dwelling.; (Project cost reflected on short form $720,000)eplan -- BOA decision valid until 06/2026 -- BBRS | $67,750 | [ALT1513823](https://nearbypermits.com/boston/permit/ALT1513823/) | | May 29, 2026 | [30 Townsend St](https://nearbypermits.com/boston/address/30-townsend-st/) | 710 ft W | Plumbing | Bath Kitchens Laundry's Water heaters | $18,000 | [PL1855926](https://nearbypermits.com/boston/permit/PL1855926/) | | May 29, 2026 | [30 Townsend St](https://nearbypermits.com/boston/address/30-townsend-st/) | 710 ft W | Plumbing | Range Water heater Furnace | $6,200 | [G1855922](https://nearbypermits.com/boston/permit/G1855922/) | | May 29, 2026 | [30 Townsend St](https://nearbypermits.com/boston/address/30-townsend-st/) | 710 ft W | Electrical | Wiring a 2 family home with all new kitchens and baths and upgrading the service to a 400 amp service. | $36,000 | [E1855894](https://nearbypermits.com/boston/permit/E1855894/) | | May 14, 2026 | [150 Martin Luther King Jr Bl](https://nearbypermits.com/boston/address/150-martin-luther-king-jr-bl/) | 590 ft NE | 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 11, 2026 | [145 Townsend St](https://nearbypermits.com/boston/address/145-townsend-st/) | 920 ft S | Alteration or repair | Remove existing bathtub to be replaced with new walk in shower & surround walls. All new fixtures like for like within same footprint as existing. No structural changes. Plumber will pull their own permit. All debris leaves job site with crew. | $20,046 | [SF1846687](https://nearbypermits.com/boston/permit/SF1846687/) | | May 9, 2026 | [145 Townsend St](https://nearbypermits.com/boston/address/145-townsend-st/) | 920 ft S | Plumbing | replace tub to shower, lav and toilet | $1,500 | [PL1846958](https://nearbypermits.com/boston/permit/PL1846958/) | | May 6, 2026 | [67 Townsend St](https://nearbypermits.com/boston/address/67-townsend-st/) | 760 ft SW | Roofing | Strip and reroof | $17,500 | [SF1843750](https://nearbypermits.com/boston/permit/SF1843750/) | ### Farther (1,000 ft to ¼ mi), 25 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 0.20 mi E | Other | Installing 6 zone ductless mini split system | $17,000 | [SF1904115](https://nearbypermits.com/boston/permit/SF1904115/) | | Oct 2, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 0.22 mi NE | Plumbing | Replace heating boiler | $5,000 | [PL1906249](https://nearbypermits.com/boston/permit/PL1906249/) | | Sep 30, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 0.20 mi E | Electrical | Wiring condenser for ductless mini split system | $1,500 | [E1904103](https://nearbypermits.com/boston/permit/E1904103/) | | Sep 23, 2026 | [120 Walnut Av](https://nearbypermits.com/boston/address/120-walnut-av/) | 0.21 mi E | Roofing | Church Slate Roof Restoration/Replacement (for affected area only) | $10,000 | [SF1902172](https://nearbypermits.com/boston/permit/SF1902172/) | | Sep 22, 2026 | [279 Walnut Av](https://nearbypermits.com/boston/address/279-walnut-av/) | 0.24 mi SW | Alteration or repair | 2nd floor bathroom: demo drywall bathroom shower and repalce with shower. 3rd floor: Demo drywall bathtub and replace with new bathtub and replacing toilet on 3rd floor bathroom. Inspections for firesafeing and/or insulation. | $42,230 | [SF1888259](https://nearbypermits.com/boston/permit/SF1888259/) | | Sep 8, 2026 | [6 Humboldt Av](https://nearbypermits.com/boston/address/6-humboldt-av/) | 0.20 mi E | Alteration or repair | Install 23 sq replacement siding - no structural work | $26,417 | [SF1897242](https://nearbypermits.com/boston/permit/SF1897242/) | | Aug 27, 2026 | [25 Laurel St](https://nearbypermits.com/boston/address/25-laurel-st/) | 0.22 mi E | Roofing | Chimney removal -FRONT chimney on asphalt roof. | $3,499 | [SF1891346](https://nearbypermits.com/boston/permit/SF1891346/) | | Aug 26, 2026 | [157 Crawford St](https://nearbypermits.com/boston/address/157-crawford-st/) | 0.24 mi SW | Plumbing | Boiler replacement | $5,000 | [PL1887253](https://nearbypermits.com/boston/permit/PL1887253/) | | Aug 21, 2026 | [69 Holworthy St](https://nearbypermits.com/boston/address/69-holworthy-st/) | 0.21 mi S | Roofing | Strip and reroof | $19,800 | [SF1880468](https://nearbypermits.com/boston/permit/SF1880468/) | | Aug 21, 2026 | [115 Dale St](https://nearbypermits.com/boston/address/115-dale-st/) | 0.21 mi N | Electrical | rewire unit take out aluminum wiring and wire with coper wire unit 6 | $12,000 | [E1890963](https://nearbypermits.com/boston/permit/E1890963/) | | Aug 20, 2026 | [139 Thornton St](https://nearbypermits.com/boston/address/139-thornton-st/) | 0.24 mi NW | Alteration or repair | demo and rebuild rear porch with in the same footprint | $36,000 | [SF1875273](https://nearbypermits.com/boston/permit/SF1875273/) | | Aug 18, 2026 | [2775 Washington St](https://nearbypermits.com/boston/address/2775-washington-st/) | 0.20 mi NW | Grading | Complete two 2.25" diameter soil borings to a depth of 10 feet. An additional 15 soil samples will be taken from across the property at a depth of 5' below the ground. This work is an extension of the work performed under Permit SF1837680. This is a vacant property. | $5,150 | [SF1878880](https://nearbypermits.com/boston/permit/SF1878880/) | | Aug 17, 2026 | [279 Walnut Av](https://nearbypermits.com/boston/address/279-walnut-av/) | 0.24 mi SW | Plumbing | 2nd floor bathroom shower and valve replacement. 3rd floor bathtub, valve and toilet replacement. | $8,000 | [PL1888266](https://nearbypermits.com/boston/permit/PL1888266/) | | Jul 31, 2026 | [4-6 Marcella St](https://nearbypermits.com/boston/address/4--6-marcella-st/) | 0.23 mi W | Plumbing | Gas furnace replacement | $6,500 | [G1875942](https://nearbypermits.com/boston/permit/G1875942/) | | Jul 14, 2026 | [56-86 Codman Pk](https://nearbypermits.com/boston/address/56--86-codman-pk/) | 0.21 mi W | Alteration or repair | Unit A11 Install of all new windows Replacement of full roof with new ice and water replacement of all Pvc trim on rakes soffits and corner boards Install of new railing and duckboards on exterior decks Painting to body of building 2 coats install of all new storm doors | $860,808 | [SF1867881](https://nearbypermits.com/boston/permit/SF1867881/) | | Jul 14, 2026 | [57-79 Codman Pk](https://nearbypermits.com/boston/address/57--79-codman-pk/) | 0.25 mi W | Alteration or repair | Unit A10 Install of all new windows Replacement of full roof with new ice and water replacement of all Pvc trim on rakes soffits and corner boards Install of new railing and duckboards on exterior decks Painting to body of building 2 coats install of all new storm doors | $674,354 | [SF1867877](https://nearbypermits.com/boston/permit/SF1867877/) | | Jul 14, 2026 | [2884-2894 Washington St](https://nearbypermits.com/boston/address/2884--2894-washington-st/) | 0.24 mi W | Alteration or repair | Unit A7 Install of all new windows Replacement of full roof with new ice and water replacement of all Pvc trim on rakes soffits and corner boards Install of new railing and duckboards on exterior decks Painting to body of building 2 coats install of all new storm doors | $384,525 | [SF1867870](https://nearbypermits.com/boston/permit/SF1867870/) | | Jun 24, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 0.22 mi NE | 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/) | | Jun 2, 2026 | [118-120 Thornton St](https://nearbypermits.com/boston/address/118--120-thornton-st/) | 0.23 mi N | Alteration or repair | Install Intellijack support system to stabilize floor joist or beams as shown | $8,469 | [ALT1830442](https://nearbypermits.com/boston/permit/ALT1830442/) | | May 19, 2026 | [114 Harrishof St](https://nearbypermits.com/boston/address/114-harrishof-st/) | 0.20 mi S | Roofing | Strip and reroof. | $28,250 | [SF1851237](https://nearbypermits.com/boston/permit/SF1851237/) | | May 8, 2026 | [79 Holworthy St](https://nearbypermits.com/boston/address/79-holworthy-st/) | 0.21 mi S | Electrical | 60 amp electric service to feed monitoring cabinet | $10,000 | [E1847410](https://nearbypermits.com/boston/permit/E1847410/) | | May 7, 2026 | [1 Leslie Pk](https://nearbypermits.com/boston/address/1-leslie-pk/) | 0.25 mi NE | Plumbing | Roughing 1 kitchen that's it | $2,000 | [PL1846145](https://nearbypermits.com/boston/permit/PL1846145/) | | May 6, 2026 | [160 Harrishof St](https://nearbypermits.com/boston/address/160-harrishof-st/) | 0.19 mi SW | Fire systems | The direct replacement of a fialed convnetional fire panel with a New Addressable FACP and Zone Modules. | $32,000 | [EFA1842191](https://nearbypermits.com/boston/permit/EFA1842191/) | | May 4, 2026 | [71 Dale St](https://nearbypermits.com/boston/address/71-dale-st/) | 0.22 mi NE | 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/) | 0.25 mi NE | Electrical | New kitchen on second floor | $4,500 | [E1841472](https://nearbypermits.com/boston/permit/E1841472/) | ## More on this street Other addresses on Walnut Av with permits, nearest house number first: - [196 Walnut Av](https://nearbypermits.com/boston/address/196-walnut-av/): newest permit Oct 22, 2025 - [247 Walnut Av](https://nearbypermits.com/boston/address/247-walnut-av/): newest permit Sep 25, 2026 - [154 Walnut Av](https://nearbypermits.com/boston/address/154-walnut-av/): newest permit Aug 19, 2025 - [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 - [282 Walnut Av](https://nearbypermits.com/boston/address/282-walnut-av/): newest permit Apr 14, 2026 - [120 Walnut Av](https://nearbypermits.com/boston/address/120-walnut-av/): newest permit Sep 23, 2026 - [300 Walnut Av](https://nearbypermits.com/boston/address/300-walnut-av/): newest permit Apr 21, 2026 - [302 Walnut Av](https://nearbypermits.com/boston/address/302-walnut-av/): newest permit Jul 30, 2026 - [99 Walnut Av](https://nearbypermits.com/boston/address/99-walnut-av/): newest permit Aug 26, 2026 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-06 12:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 3 permits at this address and 56 nearby: https://nearbypermits.com/boston/address/205-walnut-av/