# Building permits at 171 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.

Two permits on record here. The newest, Dec 5, 2024: Gas furnace replacement at unit 14. Within a quarter mile, the city has issued 9 more permits since May 1. One is for a new building, 270 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Dec 5, 2024 | Plumbing | Gas furnace replacement at unit 14 | $2,500 | [G1674737](https://nearbypermits.com/boston/permit/G1674737/) |
| Apr 13, 2010 | Alteration or repair | remodel bathroom | $2,000 | [PL21577](https://nearbypermits.com/boston/permit/PL21577/) |

## Within ¼ mi since May 1, 2026

9 permits in the circle. From our copy of the city's data (last 24 months).

### This block (250 to 1,000 ft), 9 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 10, 2026 | [152 Walnut St](https://nearbypermits.com/boston/address/152-walnut-st/) | 570 ft SW | 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/) | 880 ft S | 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/) | 880 ft S | 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/) | 270 ft W | 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/) | 740 ft W | 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/) |
| Jun 2, 2026 | [12r Ericsson St](https://nearbypermits.com/boston/address/12r-ericsson-st/) | 880 ft NW | 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/) | 770 ft NW | Electrical | Install 3 gang meter bank | $2,500 | [E1855363](https://nearbypermits.com/boston/permit/E1855363/) |
| May 29, 2026 | [28 Port Norfolk St](https://nearbypermits.com/boston/address/28-port-norfolk-st/) | 740 ft W | Roofing | Remove and replace existing roof shingles/ siddingincluding gutters and down spouts. | $21,500 | [SF1853806](https://nearbypermits.com/boston/permit/SF1853806/) |
| May 4, 2026 | [21 Lawley St](https://nearbypermits.com/boston/address/21-lawley-st/) | 940 ft SW | 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/) |

## More on this street

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

- [169 Walnut St](https://nearbypermits.com/boston/address/169-walnut-st/): newest permit Feb 12, 2025
- [173-175 Walnut St](https://nearbypermits.com/boston/address/173--175-walnut-st/): newest permit Jun 3, 2026
- [166 Walnut St](https://nearbypermits.com/boston/address/166-walnut-st/): newest permit Feb 5, 2025
- [158 Walnut St](https://nearbypermits.com/boston/address/158-walnut-st/): newest permit Jul 22, 2025
- [152 Walnut St](https://nearbypermits.com/boston/address/152-walnut-st/): newest permit Sep 10, 2026
- [122 Walnut St](https://nearbypermits.com/boston/address/122-walnut-st/): newest permit Aug 26, 2025
- [119 Walnut St](https://nearbypermits.com/boston/address/119-walnut-st/): newest permit Aug 4, 2025
- [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

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 02:40 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, both permits at this address and 9 nearby: https://nearbypermits.com/boston/address/171-walnut-st/