# Building permits at 420 D St, Boston, MA 11 permits on record here. The newest, Aug 29, 2025: Install temporary 45kva generator used to power A/V & catering equipment. Within a quarter mile, the city has issued 48 more permits (33 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 29, 2025 | Electrical | Install temporary 45kva generator used to power A/V & catering equipment. Installed 9/2. Removed 9/2. Event date 9/2 | $3,360 | [ETS1770777](https://nearbypermits.com/boston/permit/ETS1770777/) | | Jul 22, 2025 | Electrical | Grounding of 36KW generator for one day event on the lawn at D Street | $1,200 | [ETS1750535](https://nearbypermits.com/boston/permit/ETS1750535/) | | Sep 8, 2022 | Other | Erect 6 10x10 tents & 1 20x20 Tent August 28th for Susan G Komen Walk. No sides | $4,800 | [SF1378506](https://nearbypermits.com/boston/permit/SF1378506/) | | Sep 27, 2021 | Electrical | grounding of 20 KW generator | $500 | [E1250251](https://nearbypermits.com/boston/permit/E1250251/) | | Apr 19, 2019 | Plumbing | Install (3) 170,000btu heaters for Lawn on D. Installed 5/3 by 3pm, removed on 5/3 @ 11am, event on 5/3 from 8pm-11pm | $975 | [G943572](https://nearbypermits.com/boston/permit/G943572/) | | Oct 22, 2018 | Plumbing | Install (4) 170,000BTU heaters for temp tent and (4) patio heaters. Installed 10/25, removed 10/25 | $1,240 | [G892273](https://nearbypermits.com/boston/permit/G892273/) | | Oct 8, 2018 | Plumbing | Install (4) 170,000 BTU heaters for temp tents. Installed & removed 10/4 | $1,240 | [G885784](https://nearbypermits.com/boston/permit/G885784/) | | Sep 19, 2018 | Electrical | Using a temporary Generator, provide power to an event on the Lawn of the BCEC. | $300 | [ETS880781](https://nearbypermits.com/boston/permit/ETS880781/) | | Oct 3, 2017 | Plumbing | Install (3) 170,000BTU heaters in a temp tent. Install 10/5 removed 10/5 | $930 | [G763630](https://nearbypermits.com/boston/permit/G763630/) | | Nov 2, 2016 | Plumbing | Install (4) 170,000 BTU heaters. Installed on 11/2/16 removed by 11/16/16 | $1,240 | [G652972](https://nearbypermits.com/boston/permit/G652972/) | | Feb 16, 2010 | Electrical | Supply temporary power by generator for Big Apple Circus. Grounded generator and grounded connections. | $500 | [E14909](https://nearbypermits.com/boston/permit/E14909/) | ## Within ¼ mi since May 1, 2026 48 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 44 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S603 | $4,000 | [PL1906608](https://nearbypermits.com/boston/permit/PL1906608/) | | Oct 2, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S603 | $4,000 | [G1906610](https://nearbypermits.com/boston/permit/G1906610/) | | Sep 25, 2026 | [437-447 D St](https://nearbypermits.com/boston/address/437--447-d-st/) | 810 ft NE | Plumbing | Replacing gas furnace with new in existing location in the ceiling. | $4,000 | [G1904378](https://nearbypermits.com/boston/permit/G1904378/) | | Sep 25, 2026 | [437-447 D St](https://nearbypermits.com/boston/address/437--447-d-st/) | 810 ft NE | Electrical | Replace & reconnect gas furnace & AC in ceiling. | $2,000 | [E1904379](https://nearbypermits.com/boston/permit/E1904379/) | | Sep 15, 2026 | [405-409a D St](https://nearbypermits.com/boston/address/405--409a-d-st/) | 350 ft E | Alteration or repair | Image upgrade for a Dunkin Donuts. New millwork, paint, wall tile and equipment. NO structural work or interior layout changes to the existing space. | $62,000 | [SF1894198](https://nearbypermits.com/boston/permit/SF1894198/) | | Sep 15, 2026 | [405-409a D St](https://nearbypermits.com/boston/address/405--409a-d-st/) | 350 ft E | Electrical | Remodel- Power Lighting Data | $15,000 | [E1900468](https://nearbypermits.com/boston/permit/E1900468/) | | Sep 14, 2026 | [451 D St](https://nearbypermits.com/boston/address/451-d-st/) | 1,000 ft NE | Electrical | Relocate & raise conduits for installation of new roof. | $250,000 | [E1900075](https://nearbypermits.com/boston/permit/E1900075/) | | Sep 11, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S321 | $4,000 | [PL1900066](https://nearbypermits.com/boston/permit/PL1900066/) | | Sep 11, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S321 | $4,000 | [G1900069](https://nearbypermits.com/boston/permit/G1900069/) | | Sep 11, 2026 | [405-409a D St](https://nearbypermits.com/boston/address/405--409a-d-st/) | 350 ft E | Plumbing | add 2 floor sinks, hand sink, dump sink | $22,000 | [PL1899440](https://nearbypermits.com/boston/permit/PL1899440/) | | Sep 9, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N315 | $4,000 | [PL1898014](https://nearbypermits.com/boston/permit/PL1898014/) | | Sep 9, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N315 | $4,000 | [G1898018](https://nearbypermits.com/boston/permit/G1898018/) | | Aug 28, 2026 | [391-395 D St](https://nearbypermits.com/boston/address/391--395-d-st/) | 370 ft S | Plumbing | Element Hotel - replacement pool heater | $6,500 | [G1894284](https://nearbypermits.com/boston/permit/G1894284/) | | Aug 18, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N311 | $4,000 | [PL1888237](https://nearbypermits.com/boston/permit/PL1888237/) | | Aug 18, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N311 | $4,000 | [G1888240](https://nearbypermits.com/boston/permit/G1888240/) | | Aug 6, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N605 | $4,000 | [PL1883029](https://nearbypermits.com/boston/permit/PL1883029/) | | Aug 6, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N605 | $4,000 | [G1883033](https://nearbypermits.com/boston/permit/G1883033/) | | Aug 5, 2026 | [437-447 D St](https://nearbypermits.com/boston/address/437--447-d-st/) | 810 ft NE | Plumbing | Replacing gas furnace with new in existing location in the 3rd floor ceiling. | $4,000 | [G1882643](https://nearbypermits.com/boston/permit/G1882643/) | | Jul 29, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S409 | $4,000 | [PL1879631](https://nearbypermits.com/boston/permit/PL1879631/) | | Jul 29, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S409 | $4,000 | [G1879633](https://nearbypermits.com/boston/permit/G1879633/) | | Jul 28, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S308 | $4,000 | [PL1874986](https://nearbypermits.com/boston/permit/PL1874986/) | | Jul 28, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S308 | $4,000 | [G1874987](https://nearbypermits.com/boston/permit/G1874987/) | | Jul 21, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N313 | $4,000 | [PL1874582](https://nearbypermits.com/boston/permit/PL1874582/) | | Jul 21, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N313 | $4,000 | [G1874590](https://nearbypermits.com/boston/permit/G1874590/) | | Jul 20, 2026 | [451 D St](https://nearbypermits.com/boston/address/451-d-st/) | 1,000 ft NE | Electrical | JPMC 451D - CRAC Replacement. MISC Low Voltage HVAC Control Wiring FK 264249 | $35,500 | [ELV1854868](https://nearbypermits.com/boston/permit/ELV1854868/) | | Jun 26, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N508. | $4,000 | [PL1862997](https://nearbypermits.com/boston/permit/PL1862997/) | | Jun 26, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N508. | $4,000 | [G1863001](https://nearbypermits.com/boston/permit/G1863001/) | | Jun 26, 2026 | [437-447 D St](https://nearbypermits.com/boston/address/437--447-d-st/) | 810 ft NE | Plumbing | Furnace replaced | $1,250 | [G1860150](https://nearbypermits.com/boston/permit/G1860150/) | | Jun 18, 2026 | [451 D St](https://nearbypermits.com/boston/address/451-d-st/) | 1,000 ft NE | Fire systems | Added required Sprinkler work due to unforeseen site conditions. Original Permit is ALT1763859. | $10,000 | [A1858308](https://nearbypermits.com/boston/permit/A1858308/) | | Jun 17, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S220 | $4,000 | [PL1860949](https://nearbypermits.com/boston/permit/PL1860949/) | | Jun 17, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S220 | $4,000 | [G1860954](https://nearbypermits.com/boston/permit/G1860954/) | | Jun 10, 2026 | [420 E St](https://nearbypermits.com/boston/address/420-e-st/) | 960 ft S | Roofing | Install flute-fill iso in between low flutes of metal roof panels. over flute-fill install new 1" polyisocyanurate iso mechanically attached to deck using heavy duty plates and fasteners. Install new 60 mil TPO membrane in accordance with manufacturers specifications. | $489,650 | [SF1850241](https://nearbypermits.com/boston/permit/SF1850241/) | | Jun 5, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N202 | $4,000 | [PL1856600](https://nearbypermits.com/boston/permit/PL1856600/) | | Jun 5, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N202 | $4,000 | [G1856604](https://nearbypermits.com/boston/permit/G1856604/) | | Jun 4, 2026 | [420 E St](https://nearbypermits.com/boston/address/420-e-st/) | 960 ft S | Electrical | install 3 new twist lock battery charger outlets. | $800 | [E1856690](https://nearbypermits.com/boston/permit/E1856690/) | | May 26, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S501 | $4,000 | [PL1851598](https://nearbypermits.com/boston/permit/PL1851598/) | | May 26, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S501 | $4,000 | [G1851603](https://nearbypermits.com/boston/permit/G1851603/) | | May 15, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S619 | $4,000 | [PL1848955](https://nearbypermits.com/boston/permit/PL1848955/) | | May 15, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit S619 | $4,000 | [G1848957](https://nearbypermits.com/boston/permit/G1848957/) | | May 12, 2026 | [451 D St](https://nearbypermits.com/boston/address/451-d-st/) | 1,000 ft NE | Electrical | 451D St - JPMC UPS Replacement. MISC Low Voltage HVAC Control Wiring FK 253552 | $27,000 | [ELV1836663](https://nearbypermits.com/boston/permit/ELV1836663/) | | May 11, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N414 | $4,000 | [PL1847804](https://nearbypermits.com/boston/permit/PL1847804/) | | May 11, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N414 | $4,000 | [G1847806](https://nearbypermits.com/boston/permit/G1847806/) | | May 4, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N618 | $4,000 | [PL1844822](https://nearbypermits.com/boston/permit/PL1844822/) | | May 4, 2026 | [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/) | 470 ft NE | Plumbing | Replace failed gas fired water heater Unit N618 | $4,000 | [G1844823](https://nearbypermits.com/boston/permit/G1844823/) | ### Farther (1,000 ft to ¼ mi), 4 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jul 27, 2026 | [380 E St](https://nearbypermits.com/boston/address/380-e-st/) | 0.21 mi S | Electrical | Need existing solar meter inspected was deactivated in Eversource system Meter #8584886 We did a site inspection the meter and solar array are in good working condition and have no reason to be off. | $1,500 | [E1874659](https://nearbypermits.com/boston/permit/E1874659/) | | Jul 21, 2026 | [346 D St](https://nearbypermits.com/boston/address/346-d-st/) | 0.23 mi SW | Electrical | Connecting 10 furniture feeds at 346 D st, 2nd floor, Boston for Verizon. | $315 | [E1874788](https://nearbypermits.com/boston/permit/E1874788/) | | Jun 16, 2026 | [346 D St](https://nearbypermits.com/boston/address/346-d-st/) | 0.23 mi SW | Electrical | Network wiring for Verizon | $5,200 | [ELV1861479](https://nearbypermits.com/boston/permit/ELV1861479/) | | May 18, 2026 | [346 D St](https://nearbypermits.com/boston/address/346-d-st/) | 0.23 mi SW | Electrical | Security Scope 1 Card Access Panel 14 Card Reader Doors 11 Glass Break Detectors 26 Video Cameras | $95,000 | [ELV1850157](https://nearbypermits.com/boston/permit/ELV1850157/) | ## More on this street Other addresses on D St with permits, nearest house number first: - [411-415 D St](https://nearbypermits.com/boston/address/411--415-d-st/): newest permit Oct 2, 2026 - [437-447 D St](https://nearbypermits.com/boston/address/437--447-d-st/): newest permit Sep 25, 2026 - [391-395 D St](https://nearbypermits.com/boston/address/391--395-d-st/): newest permit Aug 28, 2026 - [451 D St](https://nearbypermits.com/boston/address/451-d-st/): newest permit Sep 14, 2026 - [370 D St](https://nearbypermits.com/boston/address/370-d-st/): newest permit Sep 30, 2025 - [346 D St](https://nearbypermits.com/boston/address/346-d-st/): newest permit Jul 21, 2026 - [345 D St](https://nearbypermits.com/boston/address/345-d-st/): newest permit Jul 14, 2026 - [500 D St](https://nearbypermits.com/boston/address/500-d-st/): newest permit Oct 23, 2024 - [339 D St](https://nearbypermits.com/boston/address/339-d-st/): newest permit May 13, 2025 - [272 D St](https://nearbypermits.com/boston/address/272-d-st/): newest permit Jul 8, 2025 --- 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 11 permits at this address and 48 nearby: https://nearbypermits.com/boston/address/420-d-st/