# Building permits at 91 Buttonwood St, Boston, MA

The biggest project within a quarter mile since May 1: a $1M new building at 781 Dorchester Av, permitted Sep 23.

Four permits on record here. The newest, Aug 10: Existing house is a single house family. Within a quarter mile, the city has issued 61 more permits since May 1. Two are for new buildings, the nearest 730 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Aug 10, 2026 | Alteration or repair | Existing house is a single house family. We would like to convert basement to an ADU unit (approx. 860 SF). The work includes constructing 2 bedrooms, 2 bathrooms, 1 living room and 1 kitchen. This would make it a single house + ADU unit. Also add an additional bathroom for the first floor bedroom. | $100,000 | [ALT1807338](https://nearbypermits.com/boston/permit/ALT1807338/) |
| Mar 9, 2010 | Plumbing | two full baths one kitchen | $4,000 | [PL17271](https://nearbypermits.com/boston/permit/PL17271/) |
| Mar 9, 2010 | Plumbing | gas piping for new warm air furnaces and water heater and gas stove. all appliances supplied by owner | $1,800 | [G17270](https://nearbypermits.com/boston/permit/G17270/) |
| Jan 29, 2010 | Electrical | rewire firstf loor second and thirth floor | $6,500 | [E12923](https://nearbypermits.com/boston/permit/E12923/) |

## Within ¼ mi since May 1, 2026

61 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 30, 2026 | [7 Cottrell St](https://nearbypermits.com/boston/address/7-cottrell-st/) | 230 ft E | Electrical | Meter replacement as part of Eversource's AMI project | $1,500 | [E1904485](https://nearbypermits.com/boston/permit/E1904485/) |
| Sep 16, 2026 | [86 Mount Vernon St](https://nearbypermits.com/boston/address/86-mount-vernon-st/) | 220 ft E | Electrical | Rewire 3 units, and house panel. Keep existing service. Bring 125a feed/panel to each unit to rewire branch cricuits. switches/outlets receptacle/lights. Bring unit up to code. Install AFCI/GFCI protection. Properly ground and bond existing service. Old work snaking and wiring in each unit | $50,000 | [E1900009](https://nearbypermits.com/boston/permit/E1900009/) |
| Aug 6, 2026 | [86 Buttonwood St](https://nearbypermits.com/boston/address/86-buttonwood-st/) | 130 ft SW | Electrical | Install 2-ton ductless mini-split system in the left side yard. | $1,000 | [E1882954](https://nearbypermits.com/boston/permit/E1882954/) |

### This block (250 to 1,000 ft), 36 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [42 Mayhew St](https://nearbypermits.com/boston/address/42-mayhew-st/) | 830 ft W | Plumbing | Gas line for laundry | $1,000 | [G1904941](https://nearbypermits.com/boston/permit/G1904941/) |
| Sep 30, 2026 | [36-38 Harvest St](https://nearbypermits.com/boston/address/36--38-harvest-st/) | 830 ft NW | Plumbing | Renovation 5 full bath, 3 kitchen sink, 3 Laundry, 3 water heater. | $25,000 | [PL1902916](https://nearbypermits.com/boston/permit/PL1902916/) |
| Sep 30, 2026 | [36-38 Harvest St](https://nearbypermits.com/boston/address/36--38-harvest-st/) | 830 ft NW | Plumbing | Renovation 3, gas pipe for furnaces, 3 gas stoves, 3 tankless water heaters. 3 gas dryers. | $12,000 | [G1902924](https://nearbypermits.com/boston/permit/G1902924/) |
| Sep 29, 2026 | [49 Buttonwood St](https://nearbypermits.com/boston/address/49-buttonwood-st/) | 370 ft S | Alteration or repair | Bathroom remodeling: tile, plumbing, cabinetry. No structural work. | $34,950 | [SF1899508](https://nearbypermits.com/boston/permit/SF1899508/) |
| Sep 29, 2026 | [781 Dorchester Av](https://nearbypermits.com/boston/address/781-dorchester-av/) | 860 ft NW | Alteration or repair | Subdivision of existing parcel located at 781-783 Dorchester Avenue into two separate lots pursuant to approved ZBA decision BOA-1677984. Proposed Lot 1 will contain the existing three-family dwelling at 783 Dorchester Avenue. Proposed Lot 2 will contain the proposed new two-family dwelling at 781 D | Not listed | [ALT1881814](https://nearbypermits.com/boston/permit/ALT1881814/) |
| Sep 28, 2026 | [42 Mayhew St](https://nearbypermits.com/boston/address/42-mayhew-st/) | 830 ft W | Electrical | Install five receptacles, three switches, and one recessed closet light; relocate the office light and add dedicated 20-amp washer and 30-amp dryer circuits, with other new devices connected to existing circuits. | $2,500 | [E1903825](https://nearbypermits.com/boston/permit/E1903825/) |
| Sep 27, 2026 | [53 Roseclair St](https://nearbypermits.com/boston/address/53-roseclair-st/) | 930 ft SW | Plumbing | Renovation of 2 bathroom and 1 kitchen sink | $6,000 | [PL1904335](https://nearbypermits.com/boston/permit/PL1904335/) |
| Sep 25, 2026 | [36 Buttonwood St](https://nearbypermits.com/boston/address/36-buttonwood-st/) | 490 ft S | Roofing | Install new rubber roof. | $27,560 | [SF1901841](https://nearbypermits.com/boston/permit/SF1901841/) |
| Sep 25, 2026 | [42 Mayhew St](https://nearbypermits.com/boston/address/42-mayhew-st/) | 830 ft W | Plumbing | New Laundry | $1,500 | [PL1903880](https://nearbypermits.com/boston/permit/PL1903880/) |
| Sep 23, 2026 | [781 Dorchester Av](https://nearbypermits.com/boston/address/781-dorchester-av/) | 860 ft NW | New building | Proposed construction of a new four-story, two-family residential building over a finished basement for storage only at 781 Dorchester Avenue, situated on the same lot as an existing three house on it with the address 783 Dorchester Avenue. Work per plans includes a fire alarm per NFPA 72 and sprink | $1,000,000 | [ERT1607946](https://nearbypermits.com/boston/permit/ERT1607946/) |
| Sep 22, 2026 | [51 Saint Margaret St](https://nearbypermits.com/boston/address/51-saint-margaret-st/) | 730 ft W | Electrical | Install owner supplied temp service | $1,000 | [ETS1901807](https://nearbypermits.com/boston/permit/ETS1901807/) |
| Sep 21, 2026 | [53 Roseclair St](https://nearbypermits.com/boston/address/53-roseclair-st/) | 930 ft SW | Alteration or repair | Replace existing bathrooms, fixtures and finishes. Licensed plumber will also replace existing waste drain and pipes under separate plumbing permit. Replace existing kitchen cabinets and sink. | $18,000 | [SF1901225](https://nearbypermits.com/boston/permit/SF1901225/) |
| Sep 10, 2026 | [24-26 Harvest St](https://nearbypermits.com/boston/address/24--26-harvest-st/) | 720 ft NW | Electrical | Upgrade service from 100 to 200 amp. Relocate meters outside | $4,000 | [E1897560](https://nearbypermits.com/boston/permit/E1897560/) |
| Sep 8, 2026 | [912-916 Dorchester Av](https://nearbypermits.com/boston/address/912--916-dorchester-av/) | 790 ft S | Sign | Install wall and blade signs | $9,019 | [ALT1886682](https://nearbypermits.com/boston/permit/ALT1886682/) |
| Aug 26, 2026 | [17 Buttonwood St](https://nearbypermits.com/boston/address/17-buttonwood-st/) | 820 ft S | Alteration or repair | Convert existing single fam residential home to 3 family. Fire Alarm &; Sprinkler system to be installed.;E[plan] Filed.*CC application Reassigned to FD on 7/14/2026 | $575,000 | [ALT1813988](https://nearbypermits.com/boston/permit/ALT1813988/) |
| Aug 20, 2026 | [36-38 Harvest St](https://nearbypermits.com/boston/address/36--38-harvest-st/) | 830 ft NW | Alteration or repair | replace all interior Doors + baseboards + Doors and windows casings + 3 kitcgen cabinet, install 3 bathroom tiles | $80,000 | [SF1890374](https://nearbypermits.com/boston/permit/SF1890374/) |
| Aug 20, 2026 | [22 Buttonwood St](https://nearbypermits.com/boston/address/22-buttonwood-st/) | 700 ft S | Alteration or repair | replaced rotted lumber on rear triple deck | $18,670 | [SF1879840](https://nearbypermits.com/boston/permit/SF1879840/) |
| Jul 31, 2026 | [790 Columbia Rd](https://nearbypermits.com/boston/address/790-columbia-rd/) | 770 ft SW | Electrical | Replace 15 existing 2x4 troffer light fixtures with 15 new Led flat panel troffers in second floor classroom Install 2 exit signs and 2 emergency back up units | $7,500 | [E1880506](https://nearbypermits.com/boston/permit/E1880506/) |
| Jul 27, 2026 | [793 Columbia Rd](https://nearbypermits.com/boston/address/793-columbia-rd/) | 790 ft SW | Electrical | Rewire wire house and new service | $30,000 | [E1878148](https://nearbypermits.com/boston/permit/E1878148/) |
| Jul 27, 2026 | [791 Columbia Rd](https://nearbypermits.com/boston/address/791-columbia-rd/) | 810 ft SW | Electrical | Rewire whole house | $280,000 | [E1873243](https://nearbypermits.com/boston/permit/E1873243/) |
| Jul 23, 2026 | [42 Mayhew St](https://nearbypermits.com/boston/address/42-mayhew-st/) | 830 ft W | Alteration or repair | install 9 replacement windows | $6,760 | [SF1871682](https://nearbypermits.com/boston/permit/SF1871682/) |
| Jul 15, 2026 | [819 Dorchester Av](https://nearbypermits.com/boston/address/819-dorchester-av/) | 560 ft NW | Electrical | Rewire 1st floor rear enclosed porch and rear 2nd + 3rd floor open decks. | $6,500 | [E1872696](https://nearbypermits.com/boston/permit/E1872696/) |
| Jul 14, 2026 | [15 Mount Vernon St](https://nearbypermits.com/boston/address/15-mount-vernon-st/) | 980 ft W | Plumbing | water heater | $1,800 | [G1872633](https://nearbypermits.com/boston/permit/G1872633/) |
| Jul 12, 2026 | [793 Columbia Rd](https://nearbypermits.com/boston/address/793-columbia-rd/) | 790 ft SW | Plumbing | Renovation all plumbing of the house. | $30,050 | [PL1867539](https://nearbypermits.com/boston/permit/PL1867539/) |
| Jul 12, 2026 | [793 Columbia Rd](https://nearbypermits.com/boston/address/793-columbia-rd/) | 790 ft SW | Plumbing | Repipe gas pipe for unit 1 and 2 only. | $16,500 | [G1867533](https://nearbypermits.com/boston/permit/G1867533/) |
| Jul 1, 2026 | [51 Saint Margaret St](https://nearbypermits.com/boston/address/51-saint-margaret-st/) | 730 ft W | New building | To erect a new 3 story / 2 residential building with parking on grade.; This will be a Nominal Fee Filing | $750,000 | [ERT1476089](https://nearbypermits.com/boston/permit/ERT1476089/) |
| Jun 30, 2026 | [790 Columbia Rd](https://nearbypermits.com/boston/address/790-columbia-rd/) | 770 ft SW | Alteration or repair | Main Ceiling R22 Blown-in Cellulose (Drill) | $16,148 | [SF1863007](https://nearbypermits.com/boston/permit/SF1863007/) |
| Jun 24, 2026 | [857-861 Dorchester Av](https://nearbypermits.com/boston/address/857--861-dorchester-av/) | 400 ft W | Electrical | Work to be done at secondary address 91 Roseclair. The imspection of the meter Because no usage mre than 1 year | $200 | [E1864268](https://nearbypermits.com/boston/permit/E1864268/) |
| Jun 8, 2026 | [793 Columbia Rd](https://nearbypermits.com/boston/address/793-columbia-rd/) | 790 ft SW | Alteration or repair | 3 Family full renovation per attached drawing. | $315,000 | [ALT1822188](https://nearbypermits.com/boston/permit/ALT1822188/) |
| Jun 4, 2026 | [793 Columbia Rd](https://nearbypermits.com/boston/address/793-columbia-rd/) | 790 ft SW | Fire systems | Install a UL Central station fire alarm system | $5,000 | [EFA1857359](https://nearbypermits.com/boston/permit/EFA1857359/) |
| Jun 4, 2026 | [791 Columbia Rd](https://nearbypermits.com/boston/address/791-columbia-rd/) | 810 ft SW | Fire systems | Install an ew UL Central station fire alarm system | $5,000 | [EFA1857357](https://nearbypermits.com/boston/permit/EFA1857357/) |
| May 27, 2026 | [40 Harvest St](https://nearbypermits.com/boston/address/40-harvest-st/) | 890 ft NW | Electrical | Add a public meter | $3,000 | [E1855040](https://nearbypermits.com/boston/permit/E1855040/) |
| May 20, 2026 | [790 Columbia Rd](https://nearbypermits.com/boston/address/790-columbia-rd/) | 770 ft SW | Alteration or repair | Install new hardwood floor/suspended ceiling and paint due to water damage | $110,850 | [SF1848992](https://nearbypermits.com/boston/permit/SF1848992/) |
| May 5, 2026 | [40 Buttonwood St](https://nearbypermits.com/boston/address/40-buttonwood-st/) | 450 ft S | Alteration or repair | Kitchen renovation and added laundry | $5,000 | [E1844334](https://nearbypermits.com/boston/permit/E1844334/) |
| May 4, 2026 | [791 Columbia Rd](https://nearbypermits.com/boston/address/791-columbia-rd/) | 810 ft SW | Plumbing | Renovation all plumbing. | $36,000 | [PL1841083](https://nearbypermits.com/boston/permit/PL1841083/) |
| May 4, 2026 | [791 Columbia Rd](https://nearbypermits.com/boston/address/791-columbia-rd/) | 810 ft SW | Plumbing | Running gas pipe for 2 furnaces, 2 gas stoves, 2 water heaters for unit 1 and 2. | $10,500 | [G1839108](https://nearbypermits.com/boston/permit/G1839108/) |

### Farther (1,000 ft to ¼ mi), 22 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Fire systems | install Hardwire line voltage smoke within unit and common area | $2,000 | [EFA1905659](https://nearbypermits.com/boston/permit/EFA1905659/) |
| Oct 2, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Electrical | add common meter with panel, remodel 3 kit with laundry mat room, add lighting in front and rear stairway add sub panel | $25,000 | [E1905658](https://nearbypermits.com/boston/permit/E1905658/) |
| Oct 1, 2026 | [944 Dorchester Av](https://nearbypermits.com/boston/address/944-dorchester-av/) | 0.24 mi S | Electrical | New bedroom addition, with a center light, recessed lights, a smoke detector extension from existing system and a hall light. Work being done in apartment #4 | $4,500 | [E1906086](https://nearbypermits.com/boston/permit/E1906086/) |
| Sep 21, 2026 | [18r Mayhew St](https://nearbypermits.com/boston/address/18r-mayhew-st/) | 0.23 mi W | Roofing | Complete strip and re-roof. House and shed included. Color is moire black pro | $9,000 | [SF1897428](https://nearbypermits.com/boston/permit/SF1897428/) |
| Sep 21, 2026 | [763-765 Columbia Rd](https://nearbypermits.com/boston/address/763--765-columbia-rd/) | 0.22 mi SW | Alteration or repair | We are going to do the vinyl siding on entire house add 3/8 insulation and install monogram vinyl siding from certainteed contract will be attaching to the application | $58,800 | [SF1887313](https://nearbypermits.com/boston/permit/SF1887313/) |
| Sep 13, 2026 | [67 Harvest St](https://nearbypermits.com/boston/address/67-harvest-st/) | 0.24 mi NW | Fire systems | Install a new wet and dry fire sprinkler system. Ref.ert1607835 | $47,500 | [ALT1856105](https://nearbypermits.com/boston/permit/ALT1856105/) |
| Sep 5, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Plumbing | Renovating a 3 Family house | $38,000 | [PL1897197](https://nearbypermits.com/boston/permit/PL1897197/) |
| Sep 5, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Plumbing | Gas fitting 3 New Stove and 2 combi Boilers | $6,000 | [G1897199](https://nearbypermits.com/boston/permit/G1897199/) |
| Aug 21, 2026 | [944 Dorchester Av](https://nearbypermits.com/boston/address/944-dorchester-av/) | 0.24 mi S | Alteration or repair | UNIT # 4 Build new Bedroom close walls create open for glass panel to be installed add pocket door at bathroom add LVL for support*2.3.26 Application assigned to FD 2.10.26 | $33,793 | [ALT1813914](https://nearbypermits.com/boston/permit/ALT1813914/) |
| Jul 28, 2026 | [57 Harvest St](https://nearbypermits.com/boston/address/57-harvest-st/) | 0.22 mi NW | Electrical | Inspection of third floor electric meter after disconnect - reconnect. | $300 | [E1875884](https://nearbypermits.com/boston/permit/E1875884/) |
| Jul 16, 2026 | [14 Grant St](https://nearbypermits.com/boston/address/14-grant-st/) | 0.24 mi S | Roofing | Strip/reroof | $15,500 | [SF1873267](https://nearbypermits.com/boston/permit/SF1873267/) |
| Jul 13, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Alteration or repair | Demo all water damaged walls in an exist 3fam. replace all fire damaged wood as needed, Repair including replacing finishes, kitchens bathrooms, new roof, carpentry, flooring, Electrical, plumbing, HVAC, insulation, all finishes, windows, siding, Deck repairs | $412,500 | [SF1871929](https://nearbypermits.com/boston/permit/SF1871929/) |
| Jul 7, 2026 | [928 Dorchester Av](https://nearbypermits.com/boston/address/928-dorchester-av/) | 0.19 mi S | Alteration or repair | fire escape repairs remove and replace all stair threads and clips install new stair threads remove all bar grating install new bar grating and secure with j-bolts remove all existing bolts and install new grade 5 hardware remove surface rust paint black | $28,500 | [SF1866800](https://nearbypermits.com/boston/permit/SF1866800/) |
| Jul 1, 2026 | [10 Crescent Av](https://nearbypermits.com/boston/address/10-crescent-av/) | 0.21 mi S | Alteration or repair | install aluminum coil on fascia & paint soffit | $7,870 | [SF1868160](https://nearbypermits.com/boston/permit/SF1868160/) |
| Jun 30, 2026 | [13 Howell St](https://nearbypermits.com/boston/address/13-howell-st/) | 0.25 mi NW | Alteration or repair | Installation of (3) Double-Hung Window Replacement Inserts and (1) Patio Door | $16,598 | [SF1864537](https://nearbypermits.com/boston/permit/SF1864537/) |
| Jun 22, 2026 | [53 Crescent Av](https://nearbypermits.com/boston/address/53-crescent-av/) | 0.22 mi S | Alteration or repair | Mass Save Insulation and Air Sealing | $8,316 | [SF1828106](https://nearbypermits.com/boston/permit/SF1828106/) |
| Jun 22, 2026 | [10 Bellflower St](https://nearbypermits.com/boston/address/10-bellflower-st/) | 0.20 mi NW | Electrical | Service upgrade | $6,000 | [E1857459](https://nearbypermits.com/boston/permit/E1857459/) |
| May 28, 2026 | [944 Dorchester Av](https://nearbypermits.com/boston/address/944-dorchester-av/) | 0.24 mi S | Alteration or repair | Install replacement tub bath system - no structural work | $15,070 | [SF1850002](https://nearbypermits.com/boston/permit/SF1850002/) |
| May 14, 2026 | [12 Bellflower St](https://nearbypermits.com/boston/address/12-bellflower-st/) | 0.20 mi NW | Alteration or repair | Clean Joe will be removing all affected drywalls, ceilings, and floors to clean up and prevent further damages. Interior finishes only. | $20,000 | [SF1848518](https://nearbypermits.com/boston/permit/SF1848518/) |
| May 12, 2026 | [15 Bellflower St](https://nearbypermits.com/boston/address/15-bellflower-st/) | 0.22 mi NW | Fire systems | Install manual fire alarm system per 527 cmr 12.00 | $10,500 | [EFA1847919](https://nearbypermits.com/boston/permit/EFA1847919/) |
| May 8, 2026 | [26 Roseclair St](https://nearbypermits.com/boston/address/26-roseclair-st/) | 0.24 mi W | Fire systems | install new fire alarm system | $5,000 | [EFA1847169](https://nearbypermits.com/boston/permit/EFA1847169/) |
| May 6, 2026 | [67 Harvest St](https://nearbypermits.com/boston/address/67-harvest-st/) | 0.24 mi NW | Fire systems | Class A fire alarm system | $21,000 | [EFA1846461](https://nearbypermits.com/boston/permit/EFA1846461/) |

## More on this street

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

- [92 Buttonwood St](https://nearbypermits.com/boston/address/92-buttonwood-st/): newest permit Nov 21, 2024
- [93 Buttonwood St](https://nearbypermits.com/boston/address/93-buttonwood-st/): newest permit Oct 8, 2024
- [86 Buttonwood St](https://nearbypermits.com/boston/address/86-buttonwood-st/): newest permit Aug 6, 2026
- [115 Buttonwood St](https://nearbypermits.com/boston/address/115-buttonwood-st/): newest permit Mar 18, 2025
- [117 Buttonwood St](https://nearbypermits.com/boston/address/117-buttonwood-st/): newest permit Nov 21, 2024
- [119 Buttonwood St](https://nearbypermits.com/boston/address/119-buttonwood-st/): newest permit Feb 26, 2026
- [120 Buttonwood St](https://nearbypermits.com/boston/address/120-buttonwood-st/): newest permit Sep 16, 2025
- [122 Buttonwood St](https://nearbypermits.com/boston/address/122-buttonwood-st/): newest permit Mar 30, 2026
- [49 Buttonwood St](https://nearbypermits.com/boston/address/49-buttonwood-st/): newest permit Sep 29, 2026
- [40 Buttonwood St](https://nearbypermits.com/boston/address/40-buttonwood-st/): newest permit May 5, 2026

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-07 20:48 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 4 permits at this address and 61 nearby: https://nearbypermits.com/boston/address/91-buttonwood-st/
