# Building permits at 84-100 River St, Boston, MA

39 permits on record here. The newest, Dec 8, 2025: Relocating existing sign cabinet. Within a quarter mile, the city has issued 38 more permits (35 projects) since May 1. A zoning hearing Nov 10 covers 121r River St, 580 ft northwest.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Dec 8, 2025 | Sign | Relocating existing sign cabinet. Client has moved from 10 Fairway St Mattapan to a new location at 90 River St. in Mattapan. | $600 | [ALT1782515](https://nearbypermits.com/boston/permit/ALT1782515/) |
| Sep 26, 2025 | Fire systems | This is an amendment to the ALT1708872 permit due to change in scope. This project's scope now consists of installing new initiating and notification devices within the nail salon. Devices are to be connected to the building's existing fire alarm system. | $22,478 | [A1741385](https://nearbypermits.com/boston/permit/A1741385/) |
| Aug 8, 2025 | Fire systems | This project's scope now consists of installing new initiating and notification devices within the nail salon. Devices are to be connected to the building's existing fire alarm system. | $22,478 | [EFA1741387](https://nearbypermits.com/boston/permit/EFA1741387/) |
| Jul 17, 2025 | Electrical | Install outlets in rear office and break room. Install outlets in reception area. Install new or repair all emergency lights Please note the this job is at #90 River Street (a physical therapy office for Amy Vetstein). #90 River Street was not an option to pick | $2,500 | [E1735585](https://nearbypermits.com/boston/permit/E1735585/) |
| Jun 24, 2025 | Electrical | Wiring 18- bypass VAV thermostats, 1- Ductless split thermostat, 2- Wall mounted CO2 sensors, 1- time clock for EF2, 3- temp sensors for duct heaters, 2- Anthalpy sensors for existing AHU | $4,000 | [ELV1725247](https://nearbypermits.com/boston/permit/ELV1725247/) |
| Jun 16, 2025 | Fire systems | Amend ALT1555686. Change fire alarm system. Install revised fire alarm system per June 10, 2025 plans and June 9, 2025 fire alarm narrative. | $10,000 | [A1732564](https://nearbypermits.com/boston/permit/A1732564/) |
| May 27, 2025 | Alteration or repair | 90 River St. - Interior renovations to existing 3,256SF of commercial office space (Suite 4) to include; adding non-structural partition walls in rear for office and break room. New carpeting, vinyl flooring, light electrical, painting and minor cosmetic repairs. Walls will stop 18" before ceiling | $55,905 | [SF1714765](https://nearbypermits.com/boston/permit/SF1714765/) |
| May 19, 2025 | Plumbing | installing new womens and mens room mothers bathroom and kitchen sink | $30,000 | [PL1721153](https://nearbypermits.com/boston/permit/PL1721153/) |
| May 14, 2025 | Plumbing | Removing existing bathrooms and installing new mens, womens room, mother's bathroom mop sink water bubbler, kitchen sink. | $70,000 | [PL1720704](https://nearbypermits.com/boston/permit/PL1720704/) |
| May 10, 2025 | Fire systems | Amend ALT1555686. Fire alarm and sprinkler work for this office revovation. Increase the cost of work from $2,500,000.00 to $3,455,000.00. | $955,000 | [A1680563](https://nearbypermits.com/boston/permit/A1680563/) |
| May 2, 2025 | Fire systems | Install program and test Simplex 4007ES fire alarm control panel and cellular dialer along with devices specified on drawings at the New Nail Salon at this plaza. | $22,478 | [ALT1708872](https://nearbypermits.com/boston/permit/ALT1708872/) |
| Apr 16, 2025 | Fire systems | Install program and test Simplex 4007ES fire alarm control panel and cellular dialer along with devices specified on drawings at the New Nail Salon at this plaza. | $22,478 | [EFA1708859](https://nearbypermits.com/boston/permit/EFA1708859/) |
| Mar 19, 2025 | Plumbing | This is the replacement of four (4) Carrier 7.5-ton 140,000 BTU gas package roof top units, all gas pipe will be disconnected for the removal of the existing units and reconnected when the new units are installed. Work being done at 90 River St | $10,000 | [G1700392](https://nearbypermits.com/boston/permit/G1700392/) |
| Mar 4, 2025 | Electrical | Installation of Tel/Data, CCTV, Access Control, Duress/ Panic Alarm systems for office fitup | $62,148 | [ELV1689141](https://nearbypermits.com/boston/permit/ELV1689141/) |
| Mar 4, 2025 | Fire systems | installation of new fire alarm system for tenant fitup | $26,441 | [EFA1689190](https://nearbypermits.com/boston/permit/EFA1689190/) |
| Mar 4, 2025 | Electrical | Tenant fit up for new tenant space for offices. Will include relocation of reuse of existing panels for power, new lighting & lighting control, new FA system, low voltage, lighting, power | $199,656 | [E1689135](https://nearbypermits.com/boston/permit/E1689135/) |
| Dec 31, 2024 | Sign | Install a set of backlit letters " River Nailbar" with overall size of 33"H x 242"W. Letters will be space mounted directly onto front wall. And to apply vinyl lettering to existing pylon sign panels. | $7,700 | [ALT1660511](https://nearbypermits.com/boston/permit/ALT1660511/) |
| Dec 27, 2024 | Alteration or repair | Change occupancy from "retail" to "professional office". Construct tenant fit-out.\*Existing 2 Retail, Bank, Restaurant, Gym, Beauty Salon, Dental Office, Offices #ALT1038141/2020Fire protection to be filed on seperate Amendment as Approved. | $2,500,000 | [ALT1555686](https://nearbypermits.com/boston/permit/ALT1555686/) |
| Mar 12, 2024 | Alteration or repair | Changing Occupancy from a Bank to a Nail Salon | $130,000 | [ALT1381302](https://nearbypermits.com/boston/permit/ALT1381302/) |
| Jan 18, 2024 | Sign | 90 River Street: rebrand - remove Eblens and replace with Snipes, replace existing oval facesAS OF 10/6/23 WAITING FOR BPDA SIGN APPROVAL. | $2,500 | [ALT1529797](https://nearbypermits.com/boston/permit/ALT1529797/) |
| Jul 26, 2022 | Electrical | Rework existing conduits to reconnect proposed new base. Wire, mount and install pole using existing pole heads. | $7,200 | [E1362263](https://nearbypermits.com/boston/permit/E1362263/) |
| Feb 24, 2020 | Sign | Installation of (1) set of channel letters, (2) refacing of the sign faces on the pylons. eplan | $8,000 | [ALT1038141](https://nearbypermits.com/boston/permit/ALT1038141/) |
| Jan 13, 2020 | Sign | Update signs as proposed in drawings [ePlan] | $8,500 | [ALT997960](https://nearbypermits.com/boston/permit/ALT997960/) |
| Jul 30, 2019 | Fire systems | install 3 horn strobes | $400 | [EFA981406](https://nearbypermits.com/boston/permit/EFA981406/) |
| Feb 21, 2019 | Electrical | Electrical renovation of area in the gym area | $10,000 | [E925673](https://nearbypermits.com/boston/permit/E925673/) |
| Feb 21, 2019 | Electrical | Install 1- 60 amp feed and disconnect to rooftop ductless split heat pump 4- interconnected air handlers | $1,400 | [E924447](https://nearbypermits.com/boston/permit/E924447/) |
| Jan 10, 2019 | Alteration or repair | Interior fitup of existing Planet Fitness at #90 River Street | $60,000 | [ALT891324](https://nearbypermits.com/boston/permit/ALT891324/) |
| Aug 17, 2016 | Fire systems | Install additional smoke detectors and horn stobes for the rite aid tenant alteration project. | $5,000 | [EFA621654](https://nearbypermits.com/boston/permit/EFA621654/) |
| May 11, 2016 | Sign | The Riverway -; Installation of a;new freestanding sign | $48,787 | [ALT513149](https://nearbypermits.com/boston/permit/ALT513149/) |
| Sep 14, 2015 | Electrical | Remoldeling existing store.valance lights and new cooler and freezers to be installed | $24,000 | [E519287](https://nearbypermits.com/boston/permit/E519287/) |
| Jun 19, 2015 | Electrical | Install new wiring pole lights in Rite Aid parking lot. Install new wiring and lighting for exterior façade. | $43,000 | [E484654](https://nearbypermits.com/boston/permit/E484654/) |
| May 7, 2015 | Alteration or repair | remodel of existing retail, move some walls new construction finishes,fire alarm, and sprinkler rework. | $285,000 | [ALT454831](https://nearbypermits.com/boston/permit/ALT454831/) |
| Mar 27, 2015 | Alteration or repair | exterior façade, | $375,000 | [SF448552](https://nearbypermits.com/boston/permit/SF448552/) |
| Feb 5, 2015 | Electrical | Security System Reconnect Uprade 90 River Street | $429 | [ELV444018](https://nearbypermits.com/boston/permit/ELV444018/) |
| Apr 11, 2013 | Electrical | Install of additional BA equipment 11 Devices | $499 | [ELV231526](https://nearbypermits.com/boston/permit/ELV231526/) |
| Oct 1, 2012 | Electrical | Install of addt'l CCTV 12 Devices Correct address 100 River Street/Lower Mills BC, Mattapan, MA | $2,422 | [ELV184154](https://nearbypermits.com/boston/permit/ELV184154/) |
| Jun 21, 2011 | Electrical | Install new conduits and light poles for parking lot. | $20,000 | [E82683](https://nearbypermits.com/boston/permit/E82683/) |
| Apr 14, 2010 | Sign | Install (1) set of illuminated channel letters (36" x 282 1/2") and replacement faces for existing pylon | $9,800 | [ALT18048](https://nearbypermits.com/boston/permit/ALT18048/) |
| Feb 9, 2010 | Electrical | gym | $95,000 | [E14167](https://nearbypermits.com/boston/permit/E14167/) |

## Within ¼ mi since May 1, 2026

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

### This block (250 to 1,000 ft), 18 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | [30-32 Temple St](https://nearbypermits.com/boston/address/30--32-temple-st/) | 980 ft NE | Electrical | Replace 3 jaws in meter at 32 temple st for Eversource AMI project | $2,000 | [E1895119](https://nearbypermits.com/boston/permit/E1895119/) |
| Sep 14, 2026 | [18-20 Monson St](https://nearbypermits.com/boston/address/18--20-monson-st/) | 610 ft N | Electrical | Replacing two exhaust fans in the bathrooms | $1,200 | [E1900820](https://nearbypermits.com/boston/permit/E1900820/) |
| Aug 18, 2026 | [14 Groveland St](https://nearbypermits.com/boston/address/14-groveland-st/) | 930 ft NW | Solar | Installing rooftop railed solar PV of 10.25 KW and 25 modules. No ESS installation. | $14,286 | [ALT1866998](https://nearbypermits.com/boston/permit/ALT1866998/) |
| Jul 27, 2026 | [14 Groveland St](https://nearbypermits.com/boston/address/14-groveland-st/) | 930 ft NW | Solar | Installing rooftop railed solar PV of 10.25 KW and 25 modules. No ESS installation. | $33,335 | [E1867001](https://nearbypermits.com/boston/permit/E1867001/) |
| Aug 14, 2026 | [25 Groveland St](https://nearbypermits.com/boston/address/25-groveland-st/) | 900 ft NW | Plumbing | Install: bar sink, tub, shower, kitchen sink lavs. | $20,000 | [PL1887898](https://nearbypermits.com/boston/permit/PL1887898/) |
| Aug 14, 2026 | [25 Groveland St](https://nearbypermits.com/boston/address/25-groveland-st/) | 900 ft NW | Plumbing | install: stove and boiler | $5,000 | [G1887901](https://nearbypermits.com/boston/permit/G1887901/) |
| Jul 14, 2026 | [130 River St](https://nearbypermits.com/boston/address/130-river-st/) | 660 ft W | Roofing | Remove old 30 SQ roof and install new | $20,000 | [SF1872154](https://nearbypermits.com/boston/permit/SF1872154/) |
| Jul 7, 2026 | [25 Groveland St](https://nearbypermits.com/boston/address/25-groveland-st/) | 900 ft NW | Addition | To build addition to existing single family as per attached plans. | $248,620 | [ALT1867351](https://nearbypermits.com/boston/permit/ALT1867351/) |
| Jun 18, 2026 | [30-32 Temple St](https://nearbypermits.com/boston/address/30--32-temple-st/) | 980 ft NE | Electrical | To provide temp power for a FIFA watch Party on Temple Street on 6/19/2026. | $3,450 | [ETS1861748](https://nearbypermits.com/boston/permit/ETS1861748/) |
| Jun 17, 2026 | [20 Temple St](https://nearbypermits.com/boston/address/20-temple-st/) | 870 ft NE | Alteration or repair | Pending Occupancy Committee - ALT1854896.Window Replacement as per request of the customer. We will be replacing 16 windows | $26,000 | [SF1853650](https://nearbypermits.com/boston/permit/SF1853650/) |
| Jun 10, 2026 | [7 Groveland St](https://nearbypermits.com/boston/address/7-groveland-st/) | 790 ft NW | Roofing | Remove existing asphalt shingles and dispose of debris. Install 6 feet ice and water shield, synthetic underlayment, drip edge, pipe flashings, chimney reflashing, ridge vent and new GAF Timberline HDZ asphalt shingles. | $10,000 | [SF1856142](https://nearbypermits.com/boston/permit/SF1856142/) |
| Jun 9, 2026 | [20 Temple St](https://nearbypermits.com/boston/address/20-temple-st/) | 870 ft NE | Alteration or repair | Need to confirm that this is an existing one family home for our building permit # SF1853650.; | Not listed | [ALT1854896](https://nearbypermits.com/boston/permit/ALT1854896/) |
| Jun 5, 2026 | [32-34 Sturbridge St](https://nearbypermits.com/boston/address/32--34-sturbridge-st/) | 620 ft N | Electrical | Bathroom fan upgrade | $850 | [E1857929](https://nearbypermits.com/boston/permit/E1857929/) |
| May 19, 2026 | [61 Old Morton St](https://nearbypermits.com/boston/address/61-old-morton-st/) | 980 ft NE | Roofing | Strip roof on full house and dispose. Install new roof to full house. Dispose of all debris. | $10,445 | [SF1848633](https://nearbypermits.com/boston/permit/SF1848633/) |
| May 18, 2026 | [121 River St](https://nearbypermits.com/boston/address/121-river-st/) | 570 ft NW | Fence, wall or deck | Proposed installation of a 6 feet vinyl privacy residential fence along the side property line facing Idaho Street, as shown on the submitted plot plan. The installation will not interfere with visibility at the intersection and will have a 10ft setback from the curb. | $4,800 | [ALT1835407](https://nearbypermits.com/boston/permit/ALT1835407/) |
| May 15, 2026 | [121 River St](https://nearbypermits.com/boston/address/121-river-st/) | 570 ft NW | Roofing | rip and replacee roof with shingles asphalt | $7,000 | [SF1843538](https://nearbypermits.com/boston/permit/SF1843538/) |
| May 6, 2026 | [5-7 Caddy Rd](https://nearbypermits.com/boston/address/5--7-caddy-rd/) | 910 ft N | Plumbing | install and connect Oxbox J801V060AM3SEA Furnace, including gas, venting, ductwork, and electrical, followed by startup and testing to ensure proper operation. | $1,900 | [G1845770](https://nearbypermits.com/boston/permit/G1845770/) |
| May 4, 2026 | [7 Monson St](https://nearbypermits.com/boston/address/7-monson-st/) | 850 ft NE | Electrical | Low voltage alarm install | $1,200 | [ELV1844681](https://nearbypermits.com/boston/permit/ELV1844681/) |

### Farther (1,000 ft to ¼ mi), 20 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | [63 Sanford St](https://nearbypermits.com/boston/address/63-sanford-st/) | 0.20 mi N | Electrical | Low voltage alarm install | $1,200 | [ELV1906002](https://nearbypermits.com/boston/permit/ELV1906002/) |
| Oct 1, 2026 | [63 Idaho St](https://nearbypermits.com/boston/address/63-idaho-st/) | 0.22 mi NW | Plumbing | Convert bathtub to shower in second floor bathroom. Replace valve. | $4,000 | [PL1904982](https://nearbypermits.com/boston/permit/PL1904982/) |
| Sep 25, 2026 | [7-11 Glenmore St](https://nearbypermits.com/boston/address/7--11-glenmore-st/) | 0.21 mi NW | Plumbing | New baths New kitchens New laundry's Electric water heaters | $18,900 | [PL1904537](https://nearbypermits.com/boston/permit/PL1904537/) |
| Sep 14, 2026 | [16 Tanglewood Rd](https://nearbypermits.com/boston/address/16-tanglewood-rd/) | 0.24 mi NE | Electrical | Wire additon and existing space for a 3 familuy dwelling | $25,000 | [E1889646](https://nearbypermits.com/boston/permit/E1889646/) |
| Sep 9, 2026 | [174 Manchester St](https://nearbypermits.com/boston/address/174-manchester-st/) | 0.24 mi N | Roofing | Strip and install a new roof. | $11,850 | [SF1894082](https://nearbypermits.com/boston/permit/SF1894082/) |
| Sep 3, 2026 | [64-66 Old Morton St](https://nearbypermits.com/boston/address/64--66-old-morton-st/) | 0.20 mi NE | Alteration or repair | Remove and Replace Existing 5K Gutter System & Corrugated Aluminum Downspouts, Remove and Replace Existing Deck with Azek Composite Decking, Install Azek Composite Railings, Remove and Replace Existing Sliding Door | $11,511 | [SF1886088](https://nearbypermits.com/boston/permit/SF1886088/) |
| Aug 28, 2026 | [4-16 River St](https://nearbypermits.com/boston/address/4--16-river-st/) | 0.24 mi E | Alteration or repair | Concrete Repairs to the Existing Parking Garage at Direction of Boston ISD | $75,000 | [SF1893915](https://nearbypermits.com/boston/permit/SF1893915/) |
| Aug 28, 2026 | [35-35b Old Morton St](https://nearbypermits.com/boston/address/35--35b-old-morton-st/) | 0.24 mi NE | Plumbing | new gas for furnace, tankless water heat,dryer,stove foe 3 unit | $3,000 | [G1893910](https://nearbypermits.com/boston/permit/G1893910/) |
| Aug 12, 2026 | [36 Groveland St](https://nearbypermits.com/boston/address/36-groveland-st/) | 0.20 mi NW | Electrical | Replace bathroom fan with panasonic bath fan and air cycler smart switch for weatherization work. | $1,200 | [E1885829](https://nearbypermits.com/boston/permit/E1885829/) |
| Aug 6, 2026 | [186 Manchester St](https://nearbypermits.com/boston/address/186-manchester-st/) | 0.24 mi N | Plumbing | replace heating boiler | $5,000 | [PL1882196](https://nearbypermits.com/boston/permit/PL1882196/) |
| Aug 6, 2026 | [186 Manchester St](https://nearbypermits.com/boston/address/186-manchester-st/) | 0.24 mi N | Plumbing | Replace heating boiler | $5,000 | [G1882192](https://nearbypermits.com/boston/permit/G1882192/) |
| Aug 5, 2026 | [54-56 Cedar St](https://nearbypermits.com/boston/address/54--56-cedar-st/) | 0.21 mi N | Alteration or repair | Kitchen and Bath renovations | $27,000 | [SF1879764](https://nearbypermits.com/boston/permit/SF1879764/) |
| Jul 31, 2026 | [54-56 Cedar St](https://nearbypermits.com/boston/address/54--56-cedar-st/) | 0.21 mi N | Alteration or repair | unit 2, add bath room GFCI circuit, add 2 GFCI kitchen circuit, 1 refrigerator circuit. upgrade 12 circuit panel to 24. | $1,000 | [E1878939](https://nearbypermits.com/boston/permit/E1878939/) |
| Jul 23, 2026 | [54-56 Cedar St](https://nearbypermits.com/boston/address/54--56-cedar-st/) | 0.21 mi N | Plumbing | Disconnect and reconnect all plumbing fixtures in the kitchen as well as the bathroom in unit #2 on the second floor. | $5,000 | [PL1871674](https://nearbypermits.com/boston/permit/PL1871674/) |
| Jul 7, 2026 | [36 Old Morton St](https://nearbypermits.com/boston/address/36-old-morton-st/) | 0.24 mi NE | Plumbing | 2nd Floor Bathroom - Replace bathtub, no structural change. (Other is a valve) | $1,500 | [PL1869267](https://nearbypermits.com/boston/permit/PL1869267/) |
| May 18, 2026 | [36 Groveland St](https://nearbypermits.com/boston/address/36-groveland-st/) | 0.20 mi NW | Alteration or repair | Blown cellulose in attics and walls. Additional weatherization including air sealing, sill insulation, and door weather strips. | $14,850 | [SF1844850](https://nearbypermits.com/boston/permit/SF1844850/) |
| May 11, 2026 | [25 Standard St](https://nearbypermits.com/boston/address/25-standard-st/) | 0.24 mi NW | Roofing | Strip and install a new roof with CertainTeed shingles. | $19,665 | [SF1846109](https://nearbypermits.com/boston/permit/SF1846109/) |
| May 6, 2026 | [8 Menton St](https://nearbypermits.com/boston/address/8-menton-st/) | 0.24 mi NW | Plumbing | Install and connect Weil-McLain GV90+3 Boiler with Heat-Flo 40 Gallon Water Heater, including all gas, water, venting, and heating connections, followed by startup and testing to ensure proper operation. | $2,100 | [PL1845762](https://nearbypermits.com/boston/permit/PL1845762/) |
| May 6, 2026 | [8 Menton St](https://nearbypermits.com/boston/address/8-menton-st/) | 0.24 mi NW | Plumbing | install and connect Weil-McLain GV90+3 Boiler with Heat-Flo 40 Gallon Water Heater, including all gas, water, venting, and heating connections, followed by startup and testing to ensure pr | $2,100 | [G1845760](https://nearbypermits.com/boston/permit/G1845760/) |
| May 5, 2026 | [57 Old Morton St](https://nearbypermits.com/boston/address/57-old-morton-st/) | 0.19 mi NE | Solar | Installation of roof mounted photovoltaic solar systems, 5.74 KW 14 panels with installation of 1 franklin battery installed on exterior of home | $78,000 | [SF1842961](https://nearbypermits.com/boston/permit/SF1842961/) |

## 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 | Nov 10, 2026 | 121r River St | 580 ft NW | To change occupancy from Stable to 2 Story Detached ADU with approximately 898 sq. ft. to 970 sq. ft. | [BOA1782691](https://www.boston.gov/appeal-tracker) | "Hearing Rescheduled" | 2025-09-25 |
| Requested |  | 31 Old Morton St | 0.25 mi NE | To add roof dormers to extend living space up to attic level | [BOA1692931](https://www.boston.gov/appeal-tracker) | "Community Process" | 2025-02-19 |

## More on this street

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

- [84 River St](https://nearbypermits.com/boston/address/84-river-st/): newest permit Oct 24, 2024
- [70 River St](https://nearbypermits.com/boston/address/70-river-st/): newest permit Sep 4, 2025
- [56 River St](https://nearbypermits.com/boston/address/56-river-st/): newest permit Nov 13, 2025
- [52 River St](https://nearbypermits.com/boston/address/52-river-st/): newest permit Aug 20, 2026
- [121 River St](https://nearbypermits.com/boston/address/121-river-st/): newest permit May 18, 2026
- [124 River St](https://nearbypermits.com/boston/address/124-river-st/): newest permit Nov 24, 2025
- [127-129 River St](https://nearbypermits.com/boston/address/127--129-river-st/): newest permit Nov 1, 2024
- [128 River St](https://nearbypermits.com/boston/address/128-river-st/): newest permit Jan 15, 2026
- [130 River St](https://nearbypermits.com/boston/address/130-river-st/): newest permit Jul 14, 2026
- [36 River St](https://nearbypermits.com/boston/address/36-river-st/): newest permit Apr 20, 2026

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 23:01 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 8, 17:47 UTC.

Map, all 39 permits at this address and 38 nearby: https://nearbypermits.com/boston/address/84--100-river-st/