# Building permits at 21 Austin St, Boston, MA

The biggest project within a quarter mile since May 1: a $7.6M project at 1318-1320 River St, permitted May 5.

Four permits on record here. The newest, May 1, 2025: Install 16 replacement vinyl windows, no structural changes. Within a quarter mile, the city has issued 56 more permits (51 projects) since May 1. One is for a new building, 980 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| May 1, 2025 | Alteration or repair | Install 16 replacement vinyl windows, no structural changes. | $17,140 | [SF1694725](https://nearbypermits.com/boston/permit/SF1694725/) |
| Apr 19, 2022 | Plumbing | I will replace existing furnace with new 95 percent eff. | $6,500 | [G1308879](https://nearbypermits.com/boston/permit/G1308879/) |
| Sep 23, 2020 | Alteration or repair | Renovation of existing exterior;stair. | $2,899 | [SF1115344](https://nearbypermits.com/boston/permit/SF1115344/) |
| Oct 5, 2011 | Roofing | strip and reroof | $11,600 | [SF99122](https://nearbypermits.com/boston/permit/SF99122/) |

## 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), 5 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | [2 Greenbrook Rd](https://nearbypermits.com/boston/address/2-greenbrook-rd/) | 230 ft W | Alteration or repair | Attic, slope, kneewall, walls, overhang insulation | $11,964 | [SF1897931](https://nearbypermits.com/boston/permit/SF1897931/) |
| Aug 25, 2026 | [33 Austin St](https://nearbypermits.com/boston/address/33-austin-st/) | 200 ft N | Electrical | Install #10 AWG circuit with 35A 2-pole GFCI breaker to 60A AC disconnect with surge arrester Install a 20A circuit with 20A AFCI/GFCI breaker for a service receptacle with in-use weatherproof cover. Replace 16-space 100A Panel with a 30-space 100 panel. for a 3.5 ton heat pump for apt 2 | $3,000 | [E1891259](https://nearbypermits.com/boston/permit/E1891259/) |
| Aug 25, 2026 | [33 Austin St](https://nearbypermits.com/boston/address/33-austin-st/) | 200 ft N | Electrical | Install #10 AWG circuit with 35A 2-pole GFCI breaker to 60A AC disconnect with surge arrester Install a 20A circuit with 20A AFCI/GFCI breaker for a service receptacle with in-use weatherproof cover. Replace 16-space 100A Panel with a 30-space 100 panel. for a 4 ton heat pump for apt 1 | $3,000 | [E1891258](https://nearbypermits.com/boston/permit/E1891258/) |
| Aug 10, 2026 | [2 Greenbrook Rd](https://nearbypermits.com/boston/address/2-greenbrook-rd/) | 230 ft W | Electrical | Service upgrade from 100 to 200A, overhead. | $7,500 | [E1884108](https://nearbypermits.com/boston/permit/E1884108/) |
| Jun 12, 2026 | [46 Summer St](https://nearbypermits.com/boston/address/46-summer-st/) | 170 ft NE | Alteration or repair | Removing and replacing 9 windows, replacing like with like, no structural changes. | $9,105 | [SF1855441](https://nearbypermits.com/boston/permit/SF1855441/) |

### This block (250 to 1,000 ft), 20 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [1180 Hyde Park Av](https://nearbypermits.com/boston/address/1180-hyde-park-av/) | 730 ft E | Alteration or repair | Residential weatherization and air sealing with the Mass Save Program. No structural changes. | $19,750 | [SF1905841](https://nearbypermits.com/boston/permit/SF1905841/) |
| Oct 5, 2026 | [48 Gordon Av](https://nearbypermits.com/boston/address/48-gordon-av/) | 500 ft SW | Roofing | Remove and restrip with new asphalt roof - 36sq + remove and install one new skylight. | $44,545 | [SF1901532](https://nearbypermits.com/boston/permit/SF1901532/) |
| Oct 5, 2026 | [58 Summer St](https://nearbypermits.com/boston/address/58-summer-st/) | 550 ft N | Electrical | 400A service upgrade / full electric renovation old work. | $15,000 | [E1905233](https://nearbypermits.com/boston/permit/E1905233/) |
| Sep 29, 2026 | [1 Parrott St](https://nearbypermits.com/boston/address/1-parrott-st/) | 420 ft NE | Addition | New front porch and rear deck relocation with 4 seasons and porch above per plans | $80,000 | [ALT1796354](https://nearbypermits.com/boston/permit/ALT1796354/) |
| Sep 25, 2026 | [28 Avila Rd](https://nearbypermits.com/boston/address/28-avila-rd/) | 940 ft SW | Electrical | 200 amp service upgrade from 100 amps. | $3,800 | [E1904044](https://nearbypermits.com/boston/permit/E1904044/) |
| Sep 15, 2026 | [66 Child St](https://nearbypermits.com/boston/address/66-child-st/) | 900 ft SW | Alteration or repair | Porch and deck repairs. Replace steps decking and some handrails on existing porch and rear deck. | $13,800 | [SF1901166](https://nearbypermits.com/boston/permit/SF1901166/) |
| Sep 4, 2026 | [18 Summer St](https://nearbypermits.com/boston/address/18-summer-st/) | 430 ft S | Alteration or repair | Remove and replace 1 entry door; like for like size; no structural changes | $1,485 | [SF1894519](https://nearbypermits.com/boston/permit/SF1894519/) |
| Aug 20, 2026 | [28 Avila Rd](https://nearbypermits.com/boston/address/28-avila-rd/) | 940 ft SW | Electrical | 200 Amp mpu (main panel upgrade) | $3,600 | [E1890202](https://nearbypermits.com/boston/permit/E1890202/) |
| Aug 18, 2026 | [32 Linwood St](https://nearbypermits.com/boston/address/32-linwood-st/) | 730 ft SW | Solar | Installation of roof mounted photovoltaic solar systems, 6.15 KW 15 panels with installation of 1 franklin battery installed on exterior of home | $63,300 | [SF1877196](https://nearbypermits.com/boston/permit/SF1877196/) |
| Jul 31, 2026 | [32 Linwood St](https://nearbypermits.com/boston/address/32-linwood-st/) | 730 ft SW | Solar | Installation of roof mounted photovoltaic solar systems, 6.15 KW 15 panels with installation of 1 franklin battery installed on exterior of home | $63,300 | [E1877200](https://nearbypermits.com/boston/permit/E1877200/) |
| Aug 12, 2026 | [58 Summer St](https://nearbypermits.com/boston/address/58-summer-st/) | 550 ft N | Alteration or repair | New Electrical Service 2 Family, Patching up holes, Air to Air heat pumps unit and unit 2 | $100,500 | [SF1873368](https://nearbypermits.com/boston/permit/SF1873368/) |
| Aug 6, 2026 | [30 Linwood St](https://nearbypermits.com/boston/address/30-linwood-st/) | 740 ft SW | Roofing | Strip existing roof of main house and install new artisan shingles. Install ice and water shield at bottom eaves and in valleys. Install 8 inch drip edge at all outside edges. Supply all new pipe boots. Repair trim on rear and front porches and replace with PVC. Clean all roof related debris. | $16,500 | [SF1875361](https://nearbypermits.com/boston/permit/SF1875361/) |
| Aug 5, 2026 | [5 Austin St](https://nearbypermits.com/boston/address/5-austin-st/) | 330 ft SW | Roofing | Remove and restrip with new asphalt roof - 24sq | $24,520 | [SF1879285](https://nearbypermits.com/boston/permit/SF1879285/) |
| Jul 1, 2026 | [79 Summer St](https://nearbypermits.com/boston/address/79-summer-st/) | 730 ft NE | Solar | 6.970 Kw dc & 6.460 kw ac grid tied photovoltaic system | $14,010 | [SF1861559](https://nearbypermits.com/boston/permit/SF1861559/) |
| Jun 17, 2026 | [79 Summer St](https://nearbypermits.com/boston/address/79-summer-st/) | 730 ft NE | Solar | 6.970 Kw dc & 6.460 kw ac grid tied photovoltaic system | $14,010 | [E1861560](https://nearbypermits.com/boston/permit/E1861560/) |
| Jun 26, 2026 | [58 Summer St](https://nearbypermits.com/boston/address/58-summer-st/) | 550 ft N | Plumbing | replacement of a range | $200 | [G1863517](https://nearbypermits.com/boston/permit/G1863517/) |
| Jun 8, 2026 | [1161 Hyde Park Av](https://nearbypermits.com/boston/address/1161-hyde-park-av/) | 750 ft NE | Alteration or repair | remove old insulation, insulate attic, walls, kneewalls and overhang, air sealing, door kits, venting | $26,462 | [SF1852103](https://nearbypermits.com/boston/permit/SF1852103/) |
| Jun 4, 2026 | [51 Child St](https://nearbypermits.com/boston/address/51-child-st/) | 830 ft W | Alteration or repair | Remove and replace 14 windows, like for like, same size, no structural changes | $25,000 | [SF1822412](https://nearbypermits.com/boston/permit/SF1822412/) |
| May 5, 2026 | [1318-1320 River St](https://nearbypermits.com/boston/address/1318--1320-river-st/) | 980 ft S | New building | Erect 4 story mixed-use structure to consist of 30 residential units (levels 2-4) and ground floor coffee shop (small take-out restaurant; core/shell). Enclosed ground floor parking for 30 cars; stacker parking utilized.;[ePlan] In conjunction with ALT1316466SHORT FORM / DEMO PERMIT REQUIRED FOR EXI | $7,605,231 | [ERT1291940](https://nearbypermits.com/boston/permit/ERT1291940/) |
| May 4, 2026 | [1149 Hyde Park Av](https://nearbypermits.com/boston/address/1149-hyde-park-av/) | 930 ft NE | Alteration or repair | Residential weatherization/air sealing. No structural changes. (Site ID - 1211318364 905930937) (Unit-1) (Unit-2) | $15,000 | [SF1840852](https://nearbypermits.com/boston/permit/SF1840852/) |

### Farther (1,000 ft to ¼ mi), 31 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 8, 2026 | [1251-1269 River St](https://nearbypermits.com/boston/address/1251--1269-river-st/) | 0.19 mi SE | Fire systems | Replacement of Fire Alarm control panel and associated initiating and notification devices. | $12,000 | [E1893911](https://nearbypermits.com/boston/permit/E1893911/) |
| Oct 7, 2026 | [1251-1269 River St](https://nearbypermits.com/boston/address/1251--1269-river-st/) | 0.19 mi SE | Fire systems | Install a new addressable fire alarm system including FACP, notification and detection devices, pull stations, monitoring, HVAC/Ansul interfaces, programming, testing, certification, and BFD acceptance. | $65,000 | [ALT1900631](https://nearbypermits.com/boston/permit/ALT1900631/) |
| Sep 20, 2026 | [23 Braeburn Rd](https://nearbypermits.com/boston/address/23-braeburn-rd/) | 0.22 mi N | Alteration or repair | Renovation works in existing enclose porche including repair, painting, finishing, touchup in living area, bathroom and walking closet. | $62,497 | [SF1901607](https://nearbypermits.com/boston/permit/SF1901607/) |
| Sep 9, 2026 | [15-17 Harvard Av](https://nearbypermits.com/boston/address/15--17-harvard-av/) | 0.23 mi SE | Electrical | Installation of exhaust fan | $500 | [E1878633](https://nearbypermits.com/boston/permit/E1878633/) |
| Sep 3, 2026 | [22 Perkins Av](https://nearbypermits.com/boston/address/22-perkins-av/) | 0.24 mi SW | Solar | Installation of roof mounted solar pv - 13 panels - 5.33kW DC. Installation of Tesla ESS on exterior of building. No Structural. | $50,853 | [SF1890502](https://nearbypermits.com/boston/permit/SF1890502/) |
| Aug 24, 2026 | [22 Perkins Av](https://nearbypermits.com/boston/address/22-perkins-av/) | 0.24 mi SW | Solar | Installation of roof mounted solar pv - 13 panels - 5.33kW DC. Installation of Tesla ESS on exterior of building. | $35,597 | [E1890507](https://nearbypermits.com/boston/permit/E1890507/) |
| Aug 27, 2026 | [24 Webster St](https://nearbypermits.com/boston/address/24-webster-st/) | 0.24 mi E | Alteration or repair | Residential weatherization/air sealing. No structural changes. ( 851618) | $15,000 | [SF1883771](https://nearbypermits.com/boston/permit/SF1883771/) |
| Aug 24, 2026 | [101c Summer St](https://nearbypermits.com/boston/address/101c-summer-st/) | 0.25 mi N | Plumbing | Installation of plumbing system and related work will be performed for a single-family residential house at 101C Summer St in Hyde Park. | $10,000 | [PL1891047](https://nearbypermits.com/boston/permit/PL1891047/) |
| Aug 24, 2026 | [101b Summer St](https://nearbypermits.com/boston/address/101b-summer-st/) | 0.23 mi N | Plumbing | Installation of plumbing system and related work will be performed for a single-family residential house at 101B Summer St in Hyde Park. | $10,000 | [PL1891032](https://nearbypermits.com/boston/permit/PL1891032/) |
| Aug 24, 2026 | [101a Summer St](https://nearbypermits.com/boston/address/101a-summer-st/) | 0.22 mi NE | Plumbing | Install of plumbing system and related work will perform for a single-family residential house at 101A Summer St in Hyde Park. | $10,000 | [PL1890999](https://nearbypermits.com/boston/permit/PL1890999/) |
| Aug 21, 2026 | [101c Summer St](https://nearbypermits.com/boston/address/101c-summer-st/) | 0.25 mi N | Electrical | Electrical installation related work will be performed for a single family residential house at 101C Summer St, Hyde Park including fire alarm and electrical low voltage. | $10,000 | [E1890774](https://nearbypermits.com/boston/permit/E1890774/) |
| Aug 21, 2026 | [101b Summer St](https://nearbypermits.com/boston/address/101b-summer-st/) | 0.23 mi N | Electrical | Electrical installation related work will be performed for a single family residential house at 101B Summer St, Hyde Park including fire alarm and electrical low voltage. | $10,000 | [E1890772](https://nearbypermits.com/boston/permit/E1890772/) |
| Aug 21, 2026 | [101a Summer St](https://nearbypermits.com/boston/address/101a-summer-st/) | 0.22 mi NE | Electrical | Electrical installation related work will be performed for a single family residential house at 101A Summer St, Hyde Park including fire alarm and electrical low voltage. | $10,000 | [E1890769](https://nearbypermits.com/boston/permit/E1890769/) |
| Aug 20, 2026 | [1154 Hyde Park Av](https://nearbypermits.com/boston/address/1154-hyde-park-av/) | 0.20 mi NE | Roofing | Remove existing roofing materials. Properly dispose of waste. Re-roof with new materials. *See signed estimate* | $59,900 | [SF1867671](https://nearbypermits.com/boston/permit/SF1867671/) |
| Aug 19, 2026 | [15-17 Harvard Av](https://nearbypermits.com/boston/address/15--17-harvard-av/) | 0.23 mi SE | Electrical | Outlets | $1,100 | [E1889864](https://nearbypermits.com/boston/permit/E1889864/) |
| Aug 11, 2026 | [15-17 Harvard Av](https://nearbypermits.com/boston/address/15--17-harvard-av/) | 0.23 mi SE | Alteration or repair | Frame walls in bathroom frame half wall in utility room. Insulate walls where needed install drywall on walls. Install tile on walls in bathroom. Plaster wall in utility room and paint. Build soffit around pipe on bar install fire blocking around pipes where needed. | $22,000 | [SF1886013](https://nearbypermits.com/boston/permit/SF1886013/) |
| Jul 21, 2026 | [24 Webster St](https://nearbypermits.com/boston/address/24-webster-st/) | 0.24 mi E | Alteration or repair | adding Vapor barrier - 6 mil polyethylene to exposed dirt in basement insulating walls with cellulose also insulating the attic with 8" dense pack cellulose | $14,858 | [SF1868746](https://nearbypermits.com/boston/permit/SF1868746/) |
| Jul 16, 2026 | [15-17 Harvard Av](https://nearbypermits.com/boston/address/15--17-harvard-av/) | 0.23 mi SE | Plumbing | Install fixtures | $25,000 | [PL1871487](https://nearbypermits.com/boston/permit/PL1871487/) |
| Jul 16, 2026 | [15-17 Harvard Av](https://nearbypermits.com/boston/address/15--17-harvard-av/) | 0.23 mi SE | Plumbing | Replace water heater and retest gas | $15,000 | [G1871486](https://nearbypermits.com/boston/permit/G1871486/) |
| Jul 10, 2026 | [2 Braeburn Rd](https://nearbypermits.com/boston/address/2-braeburn-rd/) | 0.24 mi N | Alteration or repair | Blown in cellulose insulation at exterior walls, air sealing and weatherization. | $9,497 | [SF1861736](https://nearbypermits.com/boston/permit/SF1861736/) |
| Jul 9, 2026 | [85 Austin St](https://nearbypermits.com/boston/address/85-austin-st/) | 0.25 mi N | Electrical | 200 amp service upgrade whole home surge protector | $7,275 | [E1870350](https://nearbypermits.com/boston/permit/E1870350/) |
| Jul 7, 2026 | [1269-1281 Hyde Park Av](https://nearbypermits.com/boston/address/1269--1281-hyde-park-av/) | 0.20 mi S | Electrical | Install a portable energy storage system for an outdoor festival on 7/10/26, 7/17/26, 7/24/26 and 7/31/26 | $200 | [E1868680](https://nearbypermits.com/boston/permit/E1868680/) |
| Jun 15, 2026 | [28 Webster St](https://nearbypermits.com/boston/address/28-webster-st/) | 0.23 mi E | Electrical | FULL 200 AMP service change needed at site in order to proceed inspections | $3,000 | [E1860485](https://nearbypermits.com/boston/permit/E1860485/) |
| Jun 1, 2026 | [82 Child St](https://nearbypermits.com/boston/address/82-child-st/) | 0.21 mi SW | Plumbing | water heater replacement | $650 | [PL1855071](https://nearbypermits.com/boston/permit/PL1855071/) |
| Jun 1, 2026 | [82 Child St](https://nearbypermits.com/boston/address/82-child-st/) | 0.21 mi SW | Plumbing | water heater replacement | $650 | [G1855069](https://nearbypermits.com/boston/permit/G1855069/) |
| May 29, 2026 | [25 Winthrop St](https://nearbypermits.com/boston/address/25-winthrop-st/) | 0.22 mi E | Alteration or repair | Demo and rebuild failing front porch. Partial repair to asphalt driveway | $66,750 | [SF1852219](https://nearbypermits.com/boston/permit/SF1852219/) |
| May 27, 2026 | [30 Webster St](https://nearbypermits.com/boston/address/30-webster-st/) | 0.22 mi E | Alteration or repair | Renovate existing single family, including rear and front addition and extension of living space into attic with dormers. Change of occupancy from single-family to two-family. | $150,000 | [ALT1790167](https://nearbypermits.com/boston/permit/ALT1790167/) |
| May 6, 2026 | [1251-1269 River St](https://nearbypermits.com/boston/address/1251--1269-river-st/) | 0.19 mi SE | Electrical | Low voltage alarm install | $1,200 | [ELV1845684](https://nearbypermits.com/boston/permit/ELV1845684/) |
| May 5, 2026 | [46 Lincoln St](https://nearbypermits.com/boston/address/46-lincoln-st/) | 0.24 mi E | Alteration or repair | Remove old shakewood siding and replace it with new vinyl siding. Also remove front decking boards and replace it with composite boards. | $37,000 | [SF1840826](https://nearbypermits.com/boston/permit/SF1840826/) |
| May 5, 2026 | [11 Business St](https://nearbypermits.com/boston/address/11-business-st/) | 0.21 mi S | Electrical | Adding public meter an unit 4 meeter | $8,000 | [E1844869](https://nearbypermits.com/boston/permit/E1844869/) |
| May 4, 2026 | [88 Austin St](https://nearbypermits.com/boston/address/88-austin-st/) | 0.22 mi N | Fence, wall or deck | 10x12 prefab storage shed | $5,353 | [SF1803877](https://nearbypermits.com/boston/permit/SF1803877/) |

## 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 |
|---|---|---|---|---|---|---|---|
| Withdrawn |  | 1139 Hyde Park Av | 0.20 mi NE | To raze and replace the existing dilapidated story residential building and revitalize it with a new five… | [BOA1886901](https://www.boston.gov/appeal-tracker) | "Appeal Closed", decision "Withdrawn" | 2026-08-12 |

## More on this street

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

- [21-27 Austin St](https://nearbypermits.com/boston/address/21--27-austin-st/): newest permit Nov 14, 2024
- [20 Austin St](https://nearbypermits.com/boston/address/20-austin-st/): newest permit Dec 27, 2025
- [25 Austin St](https://nearbypermits.com/boston/address/25-austin-st/): newest permit Nov 25, 2024
- [28 Austin St](https://nearbypermits.com/boston/address/28-austin-st/): newest permit Oct 30, 2025
- [31 Austin St](https://nearbypermits.com/boston/address/31-austin-st/): newest permit Jun 4, 2026
- [33 Austin St](https://nearbypermits.com/boston/address/33-austin-st/): newest permit Aug 25, 2026
- [34 Austin St](https://nearbypermits.com/boston/address/34-austin-st/): newest permit Sep 4, 2026
- [5 Austin St](https://nearbypermits.com/boston/address/5-austin-st/): newest permit Aug 5, 2026
- [5-29 Austin St](https://nearbypermits.com/boston/address/5--29-austin-st/): newest permit Jul 14, 2026
- [5-31 Austin St](https://nearbypermits.com/boston/address/5--31-austin-st/): newest permit Nov 6, 2024

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-10 14:13 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 10, 08:47 UTC.

Map, all 4 permits at this address and 56 nearby: https://nearbypermits.com/boston/address/21-austin-st/