# Building permits at 122 Walnut St, Boston, MA The biggest project within a quarter mile since May 1: a $7.4M new building at 173-175 Walnut St, permitted Jun 3. Four permits on record here. The newest, Aug 26, 2025: Vinyl siding installation strip entire home of wood siding down to substrate install Grip Rite Vapor Barrier. Within a quarter mile, the city has issued 10 more permits since May 1. One is for a new building, 740 ft away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 26, 2025 | Alteration or repair | Vinyl siding installation strip entire home of wood siding down to substrate install Grip Rite Vapor Barrier Install Market Sq siding install new gutters and downspouts | $30,000 | [SF1763992](https://nearbypermits.com/boston/permit/SF1763992/) | | Nov 13, 2015 | Plumbing | add 1/2 bath to first floor | $1,500 | [PL538970](https://nearbypermits.com/boston/permit/PL538970/) | | Sep 23, 2013 | Plumbing | plumbing | $1,000 | [PL287966](https://nearbypermits.com/boston/permit/PL287966/) | | Sep 23, 2013 | Plumbing | gas | $1,000 | [G287969](https://nearbypermits.com/boston/permit/G287969/) | ## Within ¼ mi since May 1, 2026 10 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 8 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 10, 2026 | [152 Walnut St](https://nearbypermits.com/boston/address/152-walnut-st/) | 360 ft N | Plumbing | Gas furnace replacement | $2,500 | [G1895403](https://nearbypermits.com/boston/permit/G1895403/) | | Aug 17, 2026 | [6-8 Water St](https://nearbypermits.com/boston/address/6--8-water-st/) | 280 ft SE | Plumbing | Replacement of existing boiler & add drain in penthouse | $10,000 | [PL1887590](https://nearbypermits.com/boston/permit/PL1887590/) | | Aug 14, 2026 | [6-8 Water St](https://nearbypermits.com/boston/address/6--8-water-st/) | 280 ft SE | Plumbing | Replacement of Boiler | $20,000 | [G1887593](https://nearbypermits.com/boston/permit/G1887593/) | | Jun 3, 2026 | [173-175 Walnut St](https://nearbypermits.com/boston/address/173--175-walnut-st/) | 740 ft N | New building | Erect new 3-story, 14-unit, residential building w/garage on a vacant 19,823 sf lot. Building features side &; roof decks, and sprinkler &; fire alarm systems, as per plans submitted.eplan | $7,365,000 | [ERT1461641](https://nearbypermits.com/boston/permit/ERT1461641/) | | Jun 3, 2026 | [28 Port Norfolk St](https://nearbypermits.com/boston/address/28-port-norfolk-st/) | 450 ft NW | Electrical | Existing is 200 amp, 120/240 volt, 2-family service with no public bypass or emergency service disconnects. New service to be 200 amp, 120/240 volt, include public bypass meter and panel for shared areas. | $7,000 | [E1856061](https://nearbypermits.com/boston/permit/E1856061/) | | May 29, 2026 | [28 Port Norfolk St](https://nearbypermits.com/boston/address/28-port-norfolk-st/) | 450 ft NW | Roofing | Remove and replace existing roof shingles/ siddingincluding gutters and down spouts. | $21,500 | [SF1853806](https://nearbypermits.com/boston/permit/SF1853806/) | | May 13, 2026 | [50 Redfield St](https://nearbypermits.com/boston/address/50-redfield-st/) | 550 ft SW | Fire systems | Wiring for horn strobes with NAC power supply panel inside unit 102 on first floor. | $8,100 | [EFA1849033](https://nearbypermits.com/boston/permit/EFA1849033/) | | May 4, 2026 | [21 Lawley St](https://nearbypermits.com/boston/address/21-lawley-st/) | 310 ft NW | Alteration or repair | Install 3/8" foam insulation board. Install double 4" vinyl siding. Cover all trim fascia and soffit. Install 20 U28 DH thermopane windows. | $55,000 | [SF1842757](https://nearbypermits.com/boston/permit/SF1842757/) | ### Farther (1,000 ft to ¼ mi), 2 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 2, 2026 | [12r Ericsson St](https://nearbypermits.com/boston/address/12r-ericsson-st/) | 0.23 mi N | Electrical | 25-056 - Power for containers to serve as drink garden on the greenway. (2) temp power feeds 30 and 50amp as specified (2) spider boxes and associated cords for connections to equipment, grounding and bonding as needed. | $27,000 | [E1856340](https://nearbypermits.com/boston/permit/E1856340/) | | Jun 1, 2026 | [12 Ericsson St](https://nearbypermits.com/boston/address/12-ericsson-st/) | 0.20 mi N | Electrical | Install 3 gang meter bank | $2,500 | [E1855363](https://nearbypermits.com/boston/permit/E1855363/) | ## More on this street Other addresses on Walnut St with permits, nearest house number first: - [119 Walnut St](https://nearbypermits.com/boston/address/119-walnut-st/): newest permit Aug 4, 2025 - [152 Walnut St](https://nearbypermits.com/boston/address/152-walnut-st/): newest permit Sep 10, 2026 - [158 Walnut St](https://nearbypermits.com/boston/address/158-walnut-st/): newest permit Jul 22, 2025 - [166 Walnut St](https://nearbypermits.com/boston/address/166-walnut-st/): newest permit Feb 5, 2025 - [169 Walnut St](https://nearbypermits.com/boston/address/169-walnut-st/): newest permit Feb 12, 2025 - [171 Walnut St](https://nearbypermits.com/boston/address/171-walnut-st/): newest permit Dec 5, 2024 - [173-175 Walnut St](https://nearbypermits.com/boston/address/173--175-walnut-st/): newest permit Jun 3, 2026 - [51 Walnut St](https://nearbypermits.com/boston/address/51-walnut-st/): newest permit May 22, 2026 - [12 Walnut St](https://nearbypermits.com/boston/address/12-walnut-st/): newest permit Mar 25, 2026 - [10 Walnut St](https://nearbypermits.com/boston/address/10-walnut-st/): newest permit Feb 4, 2026 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 01:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 4 permits at this address and 10 nearby: https://nearbypermits.com/boston/address/122-walnut-st/