# Building permits at 23 Haydn St, Boston, MA

Three permits on record here. The newest, Oct 15, 2025: Remove and Replace Asphalt Shingle Roof. Within a quarter mile, the city has issued 59 more permits (58 projects) since May 1. Two are for new buildings, the nearest 0.24 mi away. A zoning hearing Oct 22 covers 294 Stratford St, 0.20 mi west.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Oct 15, 2025 | Roofing | Remove and Replace Asphalt Shingle Roof | $16,114 | [SF1787758](https://nearbypermits.com/boston/permit/SF1787758/) |
| Oct 9, 2025 | Solar | Roof-mounted solar PV installation, 9.68 kW DC / 7.04 kW AC, 22 modules & microinverters | $21,814 | [SF1784909](https://nearbypermits.com/boston/permit/SF1784909/) |
| Oct 9, 2025 | Solar | Roof-mounted solar PV installation, 9.68 kW DC / 7.04 kW AC, 22 modules & microinverters | $5,000 | [E1784913](https://nearbypermits.com/boston/permit/E1784913/) |

## Within ¼ mi since May 1, 2026

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

### Next door (under 250 ft), 7 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | [14 Haydn St](https://nearbypermits.com/boston/address/14-haydn-st/) | 190 ft S | Plumbing | Gas boiler replacement | $1,000 | [PL1899083](https://nearbypermits.com/boston/permit/PL1899083/) |
| Jul 22, 2026 | [31 Mendelssohn St](https://nearbypermits.com/boston/address/31-mendelssohn-st/) | 210 ft N | Plumbing | Installation and wiring of ductless system consisting of one condenser and four mini split heads. Provide and wire one electric water heater (plumbing to be subcontracted). Service upgrade 100A > 300A to support installs. | $27,079 | [SF1863138](https://nearbypermits.com/boston/permit/SF1863138/) |
| Jun 27, 2026 | [31 Mendelssohn St](https://nearbypermits.com/boston/address/31-mendelssohn-st/) | 210 ft N | Electrical | Installation and wiring of ductless system consisting of one condenser and four mini split heads. Provide and wire one electric water heater (plumbing to be subcontracted). Service upgrade 100A > 300A to support installs. | $9,026 | [E1863139](https://nearbypermits.com/boston/permit/E1863139/) |
| Jun 12, 2026 | [7 Haydn St](https://nearbypermits.com/boston/address/7-haydn-st/) | 200 ft SE | Electrical | 3rd floor kitchen and bath, 2nd floor kitchen and bath | $5,000 | [E1860369](https://nearbypermits.com/boston/permit/E1860369/) |
| Jun 3, 2026 | [11 Brahms St](https://nearbypermits.com/boston/address/11-brahms-st/) | 210 ft SW | Plumbing | Renovate kitchen and add 1/2 bath on first floor | $8,000 | [PL1856260](https://nearbypermits.com/boston/permit/PL1856260/) |
| May 12, 2026 | [14 Haydn St](https://nearbypermits.com/boston/address/14-haydn-st/) | 190 ft S | Alteration or repair | Remove & repalce front porch | $32,500 | [SF1847767](https://nearbypermits.com/boston/permit/SF1847767/) |
| May 1, 2026 | [11 Brahms St](https://nearbypermits.com/boston/address/11-brahms-st/) | 210 ft SW | Electrical | New wiring for a kitchen appliances, lights, outlets and electric range. Toe kick space force hot water heater New wiring for a 1/2 bath lights, outlets and exhaust fan Dining room light and switch, new circuit for 2nd floor outlets Upgrade 100amp to 200amp service | $19,000 | [E1844846](https://nearbypermits.com/boston/permit/E1844846/) |

### This block (250 to 1,000 ft), 26 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | [227 Roslindale Av](https://nearbypermits.com/boston/address/227-roslindale-av/) | 900 ft N | Other | Install zero clearance wood burning fireplace in exterior chase. | $5,000 | [SF1886250](https://nearbypermits.com/boston/permit/SF1886250/) |
| Sep 29, 2026 | [778 West Roxbury Pw](https://nearbypermits.com/boston/address/778-west-roxbury-pw/) | 870 ft NW | Alteration or repair | Mass Save Weatherization - Air-sealing, blown-in insulation. | $3,060 | [SF1900270](https://nearbypermits.com/boston/permit/SF1900270/) |
| Sep 29, 2026 | [259 Beech St](https://nearbypermits.com/boston/address/259-beech-st/) | 690 ft N | Solar | Installation of 23 modules-roof mounted - 9.890 kw dc, 8.027 kw ac | $23,108 | [E1903491](https://nearbypermits.com/boston/permit/E1903491/) |
| Sep 28, 2026 | [43 Leniston St](https://nearbypermits.com/boston/address/43-leniston-st/) | 630 ft N | Electrical | Installed new Surge Protector Device in main electrical panel board. Removed old non functioning doorbell transformer and installed new 24V 40VA transformer for ring door bell installation. | $911 | [E1904773](https://nearbypermits.com/boston/permit/E1904773/) |
| Sep 25, 2026 | [185 Walworth St](https://nearbypermits.com/boston/address/185-walworth-st/) | 660 ft NE | Electrical | Replace meter box for Eversource AMI project | $2,000 | [E1891424](https://nearbypermits.com/boston/permit/E1891424/) |
| Sep 23, 2026 | [4629-4631 Washington St](https://nearbypermits.com/boston/address/4629--4631-washington-st/) | 760 ft S | Alteration or repair | Remodel of kitchen and baths and new siding, | $350,000 | [SF1901899](https://nearbypermits.com/boston/permit/SF1901899/) |
| Sep 17, 2026 | [4555-4557 Washington St](https://nearbypermits.com/boston/address/4555--4557-washington-st/) | 400 ft E | Alteration or repair | Tub to shower remodel with an acrylic replacement unit and prefabricated base at 4557 Washington Street Unit 1. Replace the fixture and valve. No structural work. | $20,482 | [SF1894899](https://nearbypermits.com/boston/permit/SF1894899/) |
| Sep 17, 2026 | [4555-4557 Washington St](https://nearbypermits.com/boston/address/4555--4557-washington-st/) | 400 ft E | Plumbing | Tub to shower remodel with an acrylic replacement unit and prefabricated base. Replace the fixture and valve. No structural work. | $4,959 | [PL1894843](https://nearbypermits.com/boston/permit/PL1894843/) |
| Sep 3, 2026 | [37 Mendelssohn St](https://nearbypermits.com/boston/address/37-mendelssohn-st/) | 260 ft N | Electrical | Installing outlets, recessed lights, switches, | $2,500 | [E1895997](https://nearbypermits.com/boston/permit/E1895997/) |
| Sep 1, 2026 | [23 Brahms St](https://nearbypermits.com/boston/address/23-brahms-st/) | 250 ft W | Roofing | strip and re-roof 19sq asphalt shingles | $17,925 | [SF1894213](https://nearbypermits.com/boston/permit/SF1894213/) |
| Sep 1, 2026 | [4555-4557 Washington St](https://nearbypermits.com/boston/address/4555--4557-washington-st/) | 400 ft E | Alteration or repair | Remove 3 existing windows and replace with 3 new windows. No structural work. Work is on 3rd Flr | $4,671 | [SF1891209](https://nearbypermits.com/boston/permit/SF1891209/) |
| Aug 18, 2026 | [778 West Roxbury Pw](https://nearbypermits.com/boston/address/778-west-roxbury-pw/) | 870 ft NW | Electrical | Electrical work for new full bathroom on the second floor: install lighting, GFCI receptacle, exhaust fan, and required branch circuits. | $3,000 | [E1888338](https://nearbypermits.com/boston/permit/E1888338/) |
| Aug 17, 2026 | [778 West Roxbury Pw](https://nearbypermits.com/boston/address/778-west-roxbury-pw/) | 870 ft NW | Plumbing | Second floor bathroom remodel | $4,000 | [PL1887856](https://nearbypermits.com/boston/permit/PL1887856/) |
| Aug 13, 2026 | [34 Leniston St](https://nearbypermits.com/boston/address/34-leniston-st/) | 670 ft NE | Alteration or repair | weatherization work through the mass save program | $11,558 | [SF1886047](https://nearbypermits.com/boston/permit/SF1886047/) |
| Jul 30, 2026 | [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/) | 260 ft W | Alteration or repair | Removal of existing decking and replacement with new decking. Structure of deck will not be modified. | $6,600 | [SF1797202](https://nearbypermits.com/boston/permit/SF1797202/) |
| Jul 29, 2026 | [778 West Roxbury Pw](https://nearbypermits.com/boston/address/778-west-roxbury-pw/) | 870 ft NW | Alteration or repair | Covert the closet in the master bedroom into a full bathroom with 48"x32" shower, one toilet and one vanity. | $22,600 | [SF1873539](https://nearbypermits.com/boston/permit/SF1873539/) |
| Jul 22, 2026 | [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/) | 260 ft W | Alteration or repair | 1st Floor Bathroom - Replace shower stall, no structural change. | $18,000 | [SF1872081](https://nearbypermits.com/boston/permit/SF1872081/) |
| Jul 22, 2026 | [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/) | 260 ft W | Alteration or repair | 2nd Floor Bathroom - Replace shower stall, no structural change. | $16,500 | [SF1871913](https://nearbypermits.com/boston/permit/SF1871913/) |
| Jul 16, 2026 | [39 Liszt St](https://nearbypermits.com/boston/address/39-liszt-st/) | 420 ft SW | Alteration or repair | Remove and reconstruct the existing exterior deck in the same location, dimensions, footprint, and configuration as the existing deck. No increase in size or change in layout is proposed. | $11,709 | [SF1868583](https://nearbypermits.com/boston/permit/SF1868583/) |
| Jul 14, 2026 | [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/) | 260 ft W | Plumbing | 1st Floor Bathroom - Replace shower stall, no structural change. (Other is a valve) | $1,500 | [PL1872084](https://nearbypermits.com/boston/permit/PL1872084/) |
| Jul 14, 2026 | [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/) | 260 ft W | Plumbing | 2nd Floor Bathroom - Replace shower stall, no structural change. (Other is a valve) | $1,500 | [PL1871920](https://nearbypermits.com/boston/permit/PL1871920/) |
| Jun 9, 2026 | [16 Brahms St](https://nearbypermits.com/boston/address/16-brahms-st/) | 300 ft SW | Alteration or repair | Carpet replacement * Cabinet installation * Interior door replacement * Finish carpentry and trim work * Finish hardware installation * Interior painting * Final cleaning and debris removal | $15,000 | [SF1858623](https://nearbypermits.com/boston/permit/SF1858623/) |
| Jun 4, 2026 | [396 Beech St](https://nearbypermits.com/boston/address/396-beech-st/) | 910 ft E | Electrical | Replace existing 20 amp ev charger outlet with a hardwired 40 amp ev charger | $2,700 | [E1857197](https://nearbypermits.com/boston/permit/E1857197/) |
| Jun 2, 2026 | [305 Beech St](https://nearbypermits.com/boston/address/305-beech-st/) | 400 ft NE | Alteration or repair | To insulate attic and exterior walls with blown in cellulose insulation. | $16,080 | [SF1845490](https://nearbypermits.com/boston/permit/SF1845490/) |
| May 22, 2026 | [15 Eugenia Rd](https://nearbypermits.com/boston/address/15-eugenia-rd/) | 570 ft NE | Plumbing | gas test | $1,000 | [G1852516](https://nearbypermits.com/boston/permit/G1852516/) |
| May 20, 2026 | [305 Beech St](https://nearbypermits.com/boston/address/305-beech-st/) | 400 ft NE | Electrical | replace bathroom fan in apartment 1 and 2 | $1,000 | [E1851092](https://nearbypermits.com/boston/permit/E1851092/) |

### Farther (1,000 ft to ¼ mi), 26 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [59 Bellevue Hill Rd](https://nearbypermits.com/boston/address/59-bellevue-hill-rd/) | 0.24 mi W | Addition | Reframe roof for new third floor half with new dormers, second floor addition to east above existing footprint, Rear roof deck at the second floor above existing first floor. Request to pay nominal fee. | $350,000 | [ALT1804412](https://nearbypermits.com/boston/permit/ALT1804412/) |
| Sep 30, 2026 | [16 Havana St](https://nearbypermits.com/boston/address/16-havana-st/) | 0.24 mi N | Alteration or repair | Remodel Kitchen and bath | $77,750 | [SF1905929](https://nearbypermits.com/boston/permit/SF1905929/) |
| Sep 25, 2026 | [149 Orange St](https://nearbypermits.com/boston/address/149-orange-st/) | 0.21 mi N | Electrical | Replace meter socket for Eversource AMI project | $2,000 | [E1891417](https://nearbypermits.com/boston/permit/E1891417/) |
| Sep 9, 2026 | [437 Beech St](https://nearbypermits.com/boston/address/437-beech-st/) | 0.23 mi SE | Electrical | Complete electrical renovation of a 3 family residential property. Each unit. will consist of 3 bedrooms, 2 bath, 1 kitchen, laundry,dining, living, basement storage. the electrical service will be upgraded from 200Amp to 300Amp | Not listed | [E1896720](https://nearbypermits.com/boston/permit/E1896720/) |
| Sep 2, 2026 | [9 Havana St](https://nearbypermits.com/boston/address/9-havana-st/) | 0.21 mi N | Solar | Installation of roof mounted photovoltaic solar systems, 9.02 kw 22 panels with installation of 1 franklin battery installed on exterior of home | $82,200 | [SF1890424](https://nearbypermits.com/boston/permit/SF1890424/) |
| Aug 24, 2026 | [9 Havana St](https://nearbypermits.com/boston/address/9-havana-st/) | 0.21 mi N | Solar | Installation of roof mounted photovoltaic solar systems, 9.02 kw 22 panels with installation of 1 franklin battery installed on exterior of home | $82,200 | [E1890430](https://nearbypermits.com/boston/permit/E1890430/) |
| Aug 31, 2026 | [157 Orange St](https://nearbypermits.com/boston/address/157-orange-st/) | 0.19 mi N | Electrical | Service upgrade from 100amps to 200amps | $3,000 | [E1883286](https://nearbypermits.com/boston/permit/E1883286/) |
| Aug 25, 2026 | [43-45 Wellsmere Rd](https://nearbypermits.com/boston/address/43--45-wellsmere-rd/) | 0.24 mi NE | Plumbing | Remodeling three family home | $50,000 | [PL1893927](https://nearbypermits.com/boston/permit/PL1893927/) |
| Aug 10, 2026 | [197 Roslindale Av](https://nearbypermits.com/boston/address/197-roslindale-av/) | 0.25 mi N | Alteration or repair | Install 2x FranklinWH aPower 2 battery back-up systems (30kWh) on cement pad outside of home. | $36,572 | [ALT1830382](https://nearbypermits.com/boston/permit/ALT1830382/) |
| Aug 5, 2026 | [437 Beech St](https://nearbypermits.com/boston/address/437-beech-st/) | 0.23 mi SE | Alteration or repair | Remodel of 3 kitchen and baths only | $100,000 | [SF1849589](https://nearbypermits.com/boston/permit/SF1849589/) |
| Aug 4, 2026 | [50-52 Cedrus Av](https://nearbypermits.com/boston/address/50--52-cedrus-av/) | 0.22 mi E | Alteration or repair | Insulation work as part of the MASS Save program. We are doing both unit 1 and unit 2. | $23,000 | [SF1871811](https://nearbypermits.com/boston/permit/SF1871811/) |
| Jul 21, 2026 | [4620 Washington St](https://nearbypermits.com/boston/address/4620-washington-st/) | 0.21 mi S | Alteration or repair | Removal of 10 antennas, 6 TMAS, 3 Radios, 2 equipment cabinets, unused equipment and cables, install 7 new antennas, 8 radios, 3 hybrid cables, 2 cabinets on an unmanned existing cell site at location. | $45,000 | [SF1851723](https://nearbypermits.com/boston/permit/SF1851723/) |
| Jul 15, 2026 | [50-52 Cedrus Av](https://nearbypermits.com/boston/address/50--52-cedrus-av/) | 0.22 mi E | Alteration or repair | Confirm Occupancy for a 2 Family connected to permit # SF1871811.;NO RECORD OF OCCUPANCYHOMEOWNER: | Not listed | [ALT1872022](https://nearbypermits.com/boston/permit/ALT1872022/) |
| Jul 9, 2026 | [19 Havana St](https://nearbypermits.com/boston/address/19-havana-st/) | 0.23 mi N | Electrical | meter to be replaced as part of Eversource's AMI project | $1,500 | [E1870486](https://nearbypermits.com/boston/permit/E1870486/) |
| Jul 9, 2026 | [131 Orange St](https://nearbypermits.com/boston/address/131-orange-st/) | 0.23 mi N | Electrical | meter to be replaced as part of Eversource's AMI project | $1,500 | [E1870483](https://nearbypermits.com/boston/permit/E1870483/) |
| Jul 8, 2026 | [197 Roslindale Av](https://nearbypermits.com/boston/address/197-roslindale-av/) | 0.25 mi N | Electrical | Install 2x FranklinWH battery back-up systems (30kWh) on cement pad outside next to home. | $24,381 | [E1833203](https://nearbypermits.com/boston/permit/E1833203/) |
| Jun 25, 2026 | [39 Wellsmere Rd](https://nearbypermits.com/boston/address/39-wellsmere-rd/) | 0.24 mi NE | Alteration or repair | Subdive existing lot of 13,200 sf into 3 lots, this lot #3 to contain 4,400 SF. Move existing 2 family approx 10' to left, change occupancy to 3 family and add dormers on both sides add 6 parking spaces in the rear. This application in conjunction w/ 37 Wellsmere ERT1603129 & 35 Wellsmere ERT1603126 | $500,000 | [ALT1603134](https://nearbypermits.com/boston/permit/ALT1603134/) |
| Jun 23, 2026 | [10 Hobson St](https://nearbypermits.com/boston/address/10-hobson-st/) | 0.21 mi NW | Electrical | 3 season room finished with 4 recess lights and general outlets | $3,200 | [E1855709](https://nearbypermits.com/boston/permit/E1855709/) |
| Jun 11, 2026 | [37 Wellsmere Rd](https://nearbypermits.com/boston/address/37-wellsmere-rd/) | 0.24 mi NE | New building | Subdive existing lot of 13,200 sf into 3 lots, this lot #2 to contain 4,400 SF. Erect a 3 family dwelling with 6 parking spaces in the rear. This application in conjunction with 35 Wellsmere Rd (ERT1603126) and 39 Wellsmere Rd ALT1603134 Existing garage to be demolished. | $500,000 | [ERT1603129](https://nearbypermits.com/boston/permit/ERT1603129/) |
| Jun 11, 2026 | [35 Wellsmere Rd](https://nearbypermits.com/boston/address/35-wellsmere-rd/) | 0.24 mi NE | New building | Subdive existing lot of 13,200 sf into 3 lots, this lot #1 to contain 4,400 SF. Erect a 3 family dwelling with 6 parking spaces in the rear. This application in conjunction with 37 Wellsmere Rd ERT1603129 and 39 Wellsmere Rd ALT1603134 Existing rear garage to be demolished | $500,000 | [ERT1603126](https://nearbypermits.com/boston/permit/ERT1603126/) |
| May 22, 2026 | [23 Wellsmere Rd](https://nearbypermits.com/boston/address/23-wellsmere-rd/) | 0.24 mi NE | Alteration or repair | Tub to shower conversion in 2nd floor bathroom | $17,910 | [SF1843641](https://nearbypermits.com/boston/permit/SF1843641/) |
| May 20, 2026 | [43-45 Wellsmere Rd](https://nearbypermits.com/boston/address/43--45-wellsmere-rd/) | 0.24 mi NE | Addition | Renovate 3 kitchens and 3 bathrooms, add one bathroom to the second floor. Add two small dormers to the third floor, dormers are to improve egress to/from 3rd floor, no increase to habitable square footage. Add 2nd egress from third floor. | $325,000 | [ALT1825745](https://nearbypermits.com/boston/permit/ALT1825745/) |
| May 19, 2026 | [10 Hobson St](https://nearbypermits.com/boston/address/10-hobson-st/) | 0.21 mi NW | Alteration or repair | Project consists of the renovation and conversion of an existing enclosed area into a new conditioned office space at 10 Hobson Street, Roslindale, MA. Scope of work includes selective demolition of existing finishes, removal of existing windows and framing as required, installation of new framing, | $30,589 | [SF1847482](https://nearbypermits.com/boston/permit/SF1847482/) |
| May 8, 2026 | [191-193 Cornell St](https://nearbypermits.com/boston/address/191--193-cornell-st/) | 0.23 mi E | Other | build new barroom on the basement by floor plan | $28,000 | [SF1840776](https://nearbypermits.com/boston/permit/SF1840776/) |
| May 5, 2026 | [19 Havana St](https://nearbypermits.com/boston/address/19-havana-st/) | 0.23 mi N | Alteration or repair | insulating slope 6" cellulose dense pack we are also insulating a kneewall wall with 3 " fiberglass batting and 2" rigid board and blowing the kneewall flat with 15" of cellulose | $1,534 | [SF1844994](https://nearbypermits.com/boston/permit/SF1844994/) |
| May 1, 2026 | [23 Wellsmere Rd](https://nearbypermits.com/boston/address/23-wellsmere-rd/) | 0.24 mi NE | Plumbing | Tub to shower conversion in 2nd floor bathroom | $2,500 | [PL1843646](https://nearbypermits.com/boston/permit/PL1843646/) |

## Zoning requests nearby

Hearings are public: you can comment or attend. Dates can move; check the city's page before you go.

| Status | Hearing | Address | Distance | Request | Case | City's words | Filed |
|---|---|---|---|---|---|---|---|
| Requested | Oct 22, 2026 | 294 Stratford St | 0.20 mi W | To extend the existing living space into the basement, including the addition of a shower to the existing… | [BOA1879905](https://www.boston.gov/appeal-tracker) | "Hearing Scheduled" | 2026-07-29 |
| Requested |  | 191 Walworth St | 590 ft NE | Zoning appeal: "Ground up multifamily 3 residential unit building with on grade parking & roof decks…" | [BOA1820289](https://www.boston.gov/appeal-tracker) | "Community Process" | 2026-02-11 |
| Approved | Sep 17, 2026 | 257 Cornell St | 0.21 mi NE | Zoning appeal: "Addition to the rear of the structure" | [BOA1829505](https://www.boston.gov/appeal-tracker) | "ZBA Decision Finalized", decision "Approved" | 2026-03-19 |
| Approved | May 14, 2026 | 59 Bellevue Hill Rd | 0.24 mi W | Zoning appeal: "Reframe roof for new third floor half with new dormers, second floor addition to east above…" | [BOA1813812](https://www.boston.gov/appeal-tracker) | "Appeal Closed", decision "Approved" | 2026-01-21 |

## More on this street

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

- [19 Haydn St](https://nearbypermits.com/boston/address/19-haydn-st/): newest permit Nov 5, 2024
- [14 Haydn St](https://nearbypermits.com/boston/address/14-haydn-st/): newest permit Sep 25, 2026
- [35 Haydn St](https://nearbypermits.com/boston/address/35-haydn-st/): newest permit Nov 11, 2025
- [8 Haydn St](https://nearbypermits.com/boston/address/8-haydn-st/): newest permit Jan 8, 2025
- [7 Haydn St](https://nearbypermits.com/boston/address/7-haydn-st/): newest permit Jun 12, 2026
- [40 Haydn St](https://nearbypermits.com/boston/address/40-haydn-st/): newest permit Jul 30, 2026

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-11 20:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Zoning requests come from the Boston Zoning Board of Appeal tracker (https://data.boston.gov/dataset/zoning-board-of-appeal-tracker). We read it Oct 11, 17:17 UTC.

Map, all 3 permits at this address and 59 nearby: https://nearbypermits.com/boston/address/23-haydn-st/