# Building permits at 812 River St, Boston, MA The biggest project within a quarter mile since May 1: a $344,670 alteration or repair at 5 Mercer St, permitted Sep 15. One permit on record here. The newest, Nov 1, 2024: Install 2 entry doors for replacement no structural changes. Within a quarter mile, the city has issued 54 more permits (50 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Nov 1, 2024 | Alteration or repair | Install 2 entry doors for replacement no structural changes | $5,934 | [SF1667493](https://nearbypermits.com/boston/permit/SF1667493/) | ## Within ¼ mi since May 1, 2026 54 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 2 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 10, 2026 | [800 River St](https://nearbypermits.com/boston/address/800-river-st/) | 130 ft E | Solar | Commercial rooftop installation 146.34kW solar system | $112,755 | [ALT1859899](https://nearbypermits.com/boston/permit/ALT1859899/) | | Jun 30, 2026 | [800 River St](https://nearbypermits.com/boston/address/800-river-st/) | 130 ft E | Solar | Commercial rooftop solar installation of 146.34kW solar system | $56,691 | [E1859921](https://nearbypermits.com/boston/permit/E1859921/) | ### This block (250 to 1,000 ft), 34 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [25 Agnes Av](https://nearbypermits.com/boston/address/25-agnes-av/) | 280 ft S | Alteration or repair | Repairs to roof and blocking of walls. | $18,000 | [SF1904595](https://nearbypermits.com/boston/permit/SF1904595/) | | Sep 22, 2026 | [1-3 Locust St](https://nearbypermits.com/boston/address/1--3-locust-st/) | 970 ft N | Electrical | Basement ADU. Service upgrade adding two meters | $22,000 | [E1894507](https://nearbypermits.com/boston/permit/E1894507/) | | Sep 15, 2026 | [5 Mercer St](https://nearbypermits.com/boston/address/5-mercer-st/) | 840 ft N | Alteration or repair | ;During the review process, the City of Boston advised that a separate permit for lot consolidation; | $344,670 | [ALT1806399](https://nearbypermits.com/boston/permit/ALT1806399/) | | Sep 14, 2026 | [314 Wood Av](https://nearbypermits.com/boston/address/314-wood-av/) | 620 ft W | Plumbing | add a new bathroom in the basement | $4,500 | [PL1900902](https://nearbypermits.com/boston/permit/PL1900902/) | | Sep 10, 2026 | [39 Blake St](https://nearbypermits.com/boston/address/39-blake-st/) | 930 ft N | Electrical | Installing a 5 indoor unit mini split system | $33,000 | [E1896418](https://nearbypermits.com/boston/permit/E1896418/) | | Sep 10, 2026 | [16 Blake St](https://nearbypermits.com/boston/address/16-blake-st/) | 440 ft NW | Alteration or repair | Adding a room two bathrooms and an exercise room into the basement; | $125,000 | [ALT1878774](https://nearbypermits.com/boston/permit/ALT1878774/) | | Sep 4, 2026 | [20 Oakcrest Rd](https://nearbypermits.com/boston/address/20-oakcrest-rd/) | 610 ft NE | Electrical | Installation of 1 Tesla powerwall3 battery installed on exterior of home | $10,000 | [SF1894613](https://nearbypermits.com/boston/permit/SF1894613/) | | Sep 4, 2026 | [20 Oakcrest Rd](https://nearbypermits.com/boston/address/20-oakcrest-rd/) | 610 ft NE | Electrical | Installation of 1 Tesla powerwall3 battery installed on exterior of home | $10,000 | [E1894616](https://nearbypermits.com/boston/permit/E1894616/) | | Aug 28, 2026 | [39 Blake St](https://nearbypermits.com/boston/address/39-blake-st/) | 930 ft N | Alteration or repair | Insulation work as part of the MASS Save program. | $9,000 | [SF1886101](https://nearbypermits.com/boston/permit/SF1886101/) | | Aug 24, 2026 | [310 Wood Av](https://nearbypermits.com/boston/address/310-wood-av/) | 650 ft W | Electrical | Service upgrade to 200 amps Add public meter | $7,500 | [E1887990](https://nearbypermits.com/boston/permit/E1887990/) | | Aug 11, 2026 | [14 Oakcrest Rd](https://nearbypermits.com/boston/address/14-oakcrest-rd/) | 560 ft NE | Plumbing | install: toilets, lavs, showers, kitchen sink and tubs | $1,400 | [PL1862835](https://nearbypermits.com/boston/permit/PL1862835/) | | Jul 22, 2026 | [17 Blake St](https://nearbypermits.com/boston/address/17-blake-st/) | 470 ft N | Plumbing | boiler | $6,000 | [G1874389](https://nearbypermits.com/boston/permit/G1874389/) | | Jul 21, 2026 | [17 Blake St](https://nearbypermits.com/boston/address/17-blake-st/) | 470 ft N | Electrical | Steam boiler wiring | $800 | [E1874240](https://nearbypermits.com/boston/permit/E1874240/) | | Jul 21, 2026 | [12 Osceola St](https://nearbypermits.com/boston/address/12-osceola-st/) | 990 ft E | Electrical | Main panel replacement | $2,500 | [E1872330](https://nearbypermits.com/boston/permit/E1872330/) | | Jul 14, 2026 | [1-3 Locust St](https://nearbypermits.com/boston/address/1--3-locust-st/) | 970 ft N | Solar | We are removing 13 current solar panels due to roof work, as well reinstalling once roof work is completed. Removal & Reinstall. We are not the roofers. No upgrades, no changes. No ground electrical will be touched. | $1,690 | [SF1868235](https://nearbypermits.com/boston/permit/SF1868235/) | | Jul 6, 2026 | [1-3 Locust St](https://nearbypermits.com/boston/address/1--3-locust-st/) | 970 ft N | Solar | We are removing 13 current solar panels for emergency repairs, as well reinstalling once roof work is completed. Removal & Reinstall. We are not the roofers. No upgrades, No changes. No ground electrical will be touched. The system will be reinstalled as originally installed. | $1,690 | [E1868302](https://nearbypermits.com/boston/permit/E1868302/) | | Jul 1, 2026 | [6 Frazer St](https://nearbypermits.com/boston/address/6-frazer-st/) | 810 ft W | Electrical | Adding public meter. | $7,500 | [E1867808](https://nearbypermits.com/boston/permit/E1867808/) | | Jun 25, 2026 | [19-21 Osceola St](https://nearbypermits.com/boston/address/19--21-osceola-st/) | 910 ft E | Plumbing | replace heating boiler | $5,000 | [PL1863345](https://nearbypermits.com/boston/permit/PL1863345/) | | Jun 25, 2026 | [19-21 Osceola St](https://nearbypermits.com/boston/address/19--21-osceola-st/) | 910 ft E | Plumbing | replace heating boiler | $5,000 | [G1863341](https://nearbypermits.com/boston/permit/G1863341/) | | Jun 18, 2026 | [25 Blake St](https://nearbypermits.com/boston/address/25-blake-st/) | 640 ft N | Electrical | Replace bath exhaust fan | $1,200 | [E1860525](https://nearbypermits.com/boston/permit/E1860525/) | | Jun 15, 2026 | [314 Wood Av](https://nearbypermits.com/boston/address/314-wood-av/) | 620 ft W | Electrical | 1st fl lvg.rm ext install 10 ea 120v rec's/ install 8ea recessed lgt's w/3ea sw's.2nd fl office,bathroom and closet ext(office.install 4ea rec's and 4ea recessed lgt's,bathroom,install 2ea rec's, 2ea recessed lgt's, 1ea vanity lgt and 1ea bathroom fan/lgt. closet,install 1ea rec and 3ea lgt's | $5,500 | [E1861086](https://nearbypermits.com/boston/permit/E1861086/) | | Jun 8, 2026 | [12 Osceola St](https://nearbypermits.com/boston/address/12-osceola-st/) | 990 ft E | Solar | Installation of roof mounted photovoltaic solar systems, 4.1 Kw 10 panels with installation of 1 franklin battery installed on exterior of home | $48,600 | [SF1851626](https://nearbypermits.com/boston/permit/SF1851626/) | | May 26, 2026 | [12 Osceola St](https://nearbypermits.com/boston/address/12-osceola-st/) | 990 ft E | Solar | Installation of roof mounted photovoltaic solar systems, 4.1 Kw 10 panels with installation of 1 franklin battery installed on exterior of home | $48,600 | [E1851627](https://nearbypermits.com/boston/permit/E1851627/) | | Jun 4, 2026 | [25 George St](https://nearbypermits.com/boston/address/25-george-st/) | 660 ft NW | Electrical | 1) new sub panel for garage. 2) new lighting and plugs for garage. 3) new underground feeder in trench for garage power. 4) new 1/2 PVC conduit for low voltage cable. | $4,500 | [E1857300](https://nearbypermits.com/boston/permit/E1857300/) | | Jun 3, 2026 | [14 Oakcrest Rd](https://nearbypermits.com/boston/address/14-oakcrest-rd/) | 560 ft NE | Fire systems | Add 6 smokes 2 combo | $4,000 | [EFA1857478](https://nearbypermits.com/boston/permit/EFA1857478/) | | Jun 3, 2026 | [14 Oakcrest Rd](https://nearbypermits.com/boston/address/14-oakcrest-rd/) | 560 ft NE | Electrical | Rewire whole house with 2 bedrooms, 2 full bath, 1 half bath, kitchen, dining room, livingroom, playroom in basement. Upgrad service from 100amp to 200 amp. | $20,000 | [E1857476](https://nearbypermits.com/boston/permit/E1857476/) | | Jun 1, 2026 | [25 Blake St](https://nearbypermits.com/boston/address/25-blake-st/) | 640 ft N | Alteration or repair | Insulation work as part of the MASS Save program. | $8,000 | [SF1846912](https://nearbypermits.com/boston/permit/SF1846912/) | | May 26, 2026 | [15 Mercer St](https://nearbypermits.com/boston/address/15-mercer-st/) | 910 ft N | Electrical | Replace meter bank from a 3 gang to a 4 gang to add a public meter space. New electrical meter will be installed while the power is off to the home. Electrical meter will be supported and wired per code. Conduits will be reinstalled into the meter. | $5,120 | [E1852898](https://nearbypermits.com/boston/permit/E1852898/) | | May 21, 2026 | [6 Linden Av](https://nearbypermits.com/boston/address/6-linden-av/) | 390 ft N | Plumbing | Sewage ejector toilet vantu shower in basement | $6,000 | [PL1848912](https://nearbypermits.com/boston/permit/PL1848912/) | | May 20, 2026 | [1-3 Locust St](https://nearbypermits.com/boston/address/1--3-locust-st/) | 970 ft N | Roofing | Strip and re-roof 16sq 1 layer | $10,323 | [SF1848122](https://nearbypermits.com/boston/permit/SF1848122/) | | May 14, 2026 | [25 Belnel Rd](https://nearbypermits.com/boston/address/25-belnel-rd/) | 610 ft SE | Plumbing | Plumbing of electric water heater | $2,000 | [PL1848001](https://nearbypermits.com/boston/permit/PL1848001/) | | May 11, 2026 | [25 Belnel Rd](https://nearbypermits.com/boston/address/25-belnel-rd/) | 610 ft SE | Electrical | Upgrade service from 100amps to 200 amps. Wire 3.5 ton outdoor condenser with disconnect. Wire electric water heater | $5,000 | [E1847880](https://nearbypermits.com/boston/permit/E1847880/) | | May 6, 2026 | [9 Coronado Rd](https://nearbypermits.com/boston/address/9-coronado-rd/) | 700 ft E | Plumbing | Water heater replacement. | $5,000 | [PL1844645](https://nearbypermits.com/boston/permit/PL1844645/) | | May 6, 2026 | [9 Coronado Rd](https://nearbypermits.com/boston/address/9-coronado-rd/) | 700 ft E | Electrical | Service upgrade from 100 to 200 amps. Panel upgrade to add more slots. Connections to (2) exterior condensers, (1) air handler, and 3 floor mounted heads, and hybrid DHW. | $30,000 | [E1846190](https://nearbypermits.com/boston/permit/E1846190/) | ### Farther (1,000 ft to ¼ mi), 18 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 5, 2026 | [14 Joyce Rd](https://nearbypermits.com/boston/address/14-joyce-rd/) | 0.24 mi NW | Alteration or repair | Remove and replace kitchen cabinet, 5 windows,1exterior door,front entrance stairs | $45,000 | [SF1905696](https://nearbypermits.com/boston/permit/SF1905696/) | | Sep 25, 2026 | [47 Blake St](https://nearbypermits.com/boston/address/47-blake-st/) | 0.19 mi N | Solar | Installation of roof mounted photovoltaic solar systems, 4.1 kw 10 panels with installation of 1 tesla powerwall3 battery installed on exterior of home | $36,600 | [E1904139](https://nearbypermits.com/boston/permit/E1904139/) | | Sep 21, 2026 | [20 Osceola St](https://nearbypermits.com/boston/address/20-osceola-st/) | 0.20 mi E | Electrical | Install SPAN panel and replace service disconnect | $8,200 | [E1902450](https://nearbypermits.com/boston/permit/E1902450/) | | Sep 21, 2026 | [20 Osceola St](https://nearbypermits.com/boston/address/20-osceola-st/) | 0.20 mi E | Solar | Installation of roof mounted photovoltaic solar systems, 7.79 kw 19 panels with installation of 1 Tesla powerwall3 battery installed on exterior of home | $61,500 | [E1902086](https://nearbypermits.com/boston/permit/E1902086/) | | Sep 9, 2026 | [92 Radcliffe Rd](https://nearbypermits.com/boston/address/92-radcliffe-rd/) | 0.21 mi N | Alteration or repair | repair the front entry steps | $3,500 | [SF1890144](https://nearbypermits.com/boston/permit/SF1890144/) | | Sep 2, 2026 | [79 Taunton Av](https://nearbypermits.com/boston/address/79-taunton-av/) | 0.25 mi N | Alteration or repair | Removal of existing vinyl siding, wrap the house with tyvek, install trims around windows and wrap with aluminum. Install vinyl siding and soffit, j-channel and corners. | $37,000 | [SF1888406](https://nearbypermits.com/boston/permit/SF1888406/) | | Aug 27, 2026 | [120 Belnel Rd](https://nearbypermits.com/boston/address/120-belnel-rd/) | 0.24 mi SE | Addition | Build an addition to the second floor to include Two Bedroom and Two bathroom, Second floor elevation | $100,000 | [ALT1890847](https://nearbypermits.com/boston/permit/ALT1890847/) | | Aug 26, 2026 | [7 Hopewell Rd](https://nearbypermits.com/boston/address/7-hopewell-rd/) | 0.21 mi SE | Electrical | Upgrade the existing service from 100 amps to 200 amps and relocated the panel breaker from inside the bathroom to new Location. | $4,000 | [E1891452](https://nearbypermits.com/boston/permit/E1891452/) | | Aug 20, 2026 | [79 Taunton Av](https://nearbypermits.com/boston/address/79-taunton-av/) | 0.25 mi N | Alteration or repair | Siding job, remove meter and replace. | $1,000 | [E1889857](https://nearbypermits.com/boston/permit/E1889857/) | | Jul 22, 2026 | [13 Joyce Rd](https://nearbypermits.com/boston/address/13-joyce-rd/) | 0.22 mi NW | Alteration or repair | To insulate attic with blown in cellulose insulation. | $3,842 | [SF1860904](https://nearbypermits.com/boston/permit/SF1860904/) | | Jul 17, 2026 | [67 Oakcrest Rd](https://nearbypermits.com/boston/address/67-oakcrest-rd/) | 0.22 mi NE | Alteration or repair | insulating exterior walls using cellulose R15. insulating and air sealing attic, adding cellulose to bring R value to R49. insulating basement rim joists with fiberglass R19. | $6,911 | [SF1862062](https://nearbypermits.com/boston/permit/SF1862062/) | | Jun 26, 2026 | [22 Joyce Rd](https://nearbypermits.com/boston/address/22-joyce-rd/) | 0.23 mi NW | Solar | Installation of roof mounted photovoltaic solar systems, 7.38 KW 18 panels with installation of 1 franklin battery installed on exterior of home | $59,100 | [SF1859323](https://nearbypermits.com/boston/permit/SF1859323/) | | Jun 10, 2026 | [22 Joyce Rd](https://nearbypermits.com/boston/address/22-joyce-rd/) | 0.23 mi NW | Solar | Installation of roof mounted photovoltaic solar systems, 7.38 KW 18 panels with installation of 1 franklin battery installed on exterior of home | $59,100 | [E1859327](https://nearbypermits.com/boston/permit/E1859327/) | | Jun 24, 2026 | [720 River St](https://nearbypermits.com/boston/address/720-river-st/) | 0.21 mi E | Electrical | Replace (1) receptacle and box in the living room due to damage. Replace breaker panel and install AFCI breaker in Unit #43 | $1,100 | [E1863707](https://nearbypermits.com/boston/permit/E1863707/) | | May 26, 2026 | [45 Frazer St](https://nearbypermits.com/boston/address/45-frazer-st/) | 0.24 mi W | Solar | Installation of roof mounted photovoltaic solar systems, 7.38 kw 18 panels NO BATTERY STORAGE | $30,900 | [E1853281](https://nearbypermits.com/boston/permit/E1853281/) | | May 26, 2026 | [45 Frazer St](https://nearbypermits.com/boston/address/45-frazer-st/) | 0.24 mi W | Electrical | Service conductor refeed 100A | $1,800 | [E1852087](https://nearbypermits.com/boston/permit/E1852087/) | | May 22, 2026 | [96a-96 Radcliffe Rd](https://nearbypermits.com/boston/address/96a--96-radcliffe-rd/) | 0.20 mi N | Electrical | Upgrade service from existing service 100amp to 200amp move all the meter gang outdoor, replace two new panels | $9,800 | [E1852528](https://nearbypermits.com/boston/permit/E1852528/) | | May 1, 2026 | [45 Frazer St](https://nearbypermits.com/boston/address/45-frazer-st/) | 0.24 mi W | Roofing | Existing solar panels will be removed by solar company and re applied after work has been completed. | $6,500 | [SF1842858](https://nearbypermits.com/boston/permit/SF1842858/) | ## More on this street Other addresses on River St with permits, nearest house number first: - [819 River St](https://nearbypermits.com/boston/address/819-river-st/): newest permit May 23, 2025 - [821 River St](https://nearbypermits.com/boston/address/821-river-st/): newest permit Dec 11, 2025 - [800 River St](https://nearbypermits.com/boston/address/800-river-st/): newest permit Aug 10, 2026 - [797-801 River St](https://nearbypermits.com/boston/address/797--801-river-st/): newest permit Dec 5, 2025 - [850 River St](https://nearbypermits.com/boston/address/850-river-st/): newest permit Oct 14, 2025 - [750 River St](https://nearbypermits.com/boston/address/750-river-st/): newest permit Jan 30, 2025 - [885 River St](https://nearbypermits.com/boston/address/885-river-st/): newest permit Jun 27, 2025 - [892 River St](https://nearbypermits.com/boston/address/892-river-st/): newest permit Sep 9, 2025 - [720 River St](https://nearbypermits.com/boston/address/720-river-st/): newest permit Jun 24, 2026 - [715 River St](https://nearbypermits.com/boston/address/715-river-st/): newest permit May 7, 2025 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 12:03 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 54 nearby: https://nearbypermits.com/boston/address/812-river-st/