# Building permits at 40 Langdon St, Boston, MA The biggest project within a quarter mile since May 1: a $300,000 project at 100 Magazine St, permitted Jun 15. Two permits on record here. The newest, Jun 30, 2025: Install 3/8" insulation board to exterior. Within a quarter mile, the city has issued 40 more permits (36 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jun 30, 2025 | Alteration or repair | Install 3/8" insulation board to exterior. Install 26 squares of double 4" vinyl siding. Cover trim fascia and soffit. Install new gutters and downspouts. | $55,000 | [SF1740830](https://nearbypermits.com/boston/permit/SF1740830/) | | Mar 22, 2010 | Roofing | Remove existing roof and replace with new 0.60 EPDM rubber roof system and 1' roof instulation | $16,500 | [SF18794](https://nearbypermits.com/boston/permit/SF18794/) | ## Within ¼ mi since May 1, 2026 40 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 15, 2026 | [120 George St](https://nearbypermits.com/boston/address/120-george-st/) | 120 ft NE | Fire systems | Replace existing fire alarm panel with new panel. Add cellular dialer. Work to be completed and tested during a single 8 hour shift. Building is a bha property | $6,000 | [EFA1900658](https://nearbypermits.com/boston/permit/EFA1900658/) | ### This block (250 to 1,000 ft), 22 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [20-24 Burrell St](https://nearbypermits.com/boston/address/20--24-burrell-st/) | 660 ft S | Alteration or repair | weatherization, Insulation and air sealing of #23 Burrell St | $3,780 | [SF1905526](https://nearbypermits.com/boston/permit/SF1905526/) | | Sep 30, 2026 | [30-32 Clarence St](https://nearbypermits.com/boston/address/30--32-clarence-st/) | 370 ft W | Electrical | Meter replacement as part of Eversource's AMI project | $1,500 | [E1904530](https://nearbypermits.com/boston/permit/E1904530/) | | Sep 18, 2026 | [175-177 Norfolk Av](https://nearbypermits.com/boston/address/175--177-norfolk-av/) | 680 ft E | Alteration or repair | Bathroom rehab replacing siding on the rear and right side of the house; | $83,800 | [SF1902390](https://nearbypermits.com/boston/permit/SF1902390/) | | Sep 2, 2026 | [21 Burrell St](https://nearbypermits.com/boston/address/21-burrell-st/) | 800 ft S | Solar | Installation of an interconnected rooftop pv system. 21 panels 8.61 kw dc. No ESS no structural | $10,602 | [SF1895072](https://nearbypermits.com/boston/permit/SF1895072/) | | Sep 2, 2026 | [21 Burrell St](https://nearbypermits.com/boston/address/21-burrell-st/) | 800 ft S | Solar | Installation of an interconnected rooftop pv system. 23 panels 9.43 kw dc. No ESS no structural | $13,877 | [SF1894790](https://nearbypermits.com/boston/permit/SF1894790/) | | Aug 27, 2026 | [21 Burrell St](https://nearbypermits.com/boston/address/21-burrell-st/) | 800 ft S | Solar | Installation of an interconnected rooftop pv system. 21 panels 8.61 kw dc. No ESS no structural | $35,493 | [E1895076](https://nearbypermits.com/boston/permit/E1895076/) | | Aug 27, 2026 | [21 Burrell St](https://nearbypermits.com/boston/address/21-burrell-st/) | 800 ft S | Solar | Installation of an interconnected rooftop pv system. 23 panels 9.43 kw dc. No structural no ESS | $46,459 | [E1894792](https://nearbypermits.com/boston/permit/E1894792/) | | Aug 24, 2026 | [169-171 Norfolk Av](https://nearbypermits.com/boston/address/169--171-norfolk-av/) | 520 ft NE | Roofing | Roof repair with some sections replaced to address roof leaks. | $3,900 | [SF1889471](https://nearbypermits.com/boston/permit/SF1889471/) | | Aug 20, 2026 | [451 Dudley St](https://nearbypermits.com/boston/address/451-dudley-st/) | 690 ft W | Plumbing | 2nd Floor Bathroom - Replace shower stall. No structural change. (Other is a valve) | $1,500 | [PL1890174](https://nearbypermits.com/boston/permit/PL1890174/) | | Aug 13, 2026 | [28 Shirley St](https://nearbypermits.com/boston/address/28-shirley-st/) | 390 ft S | Electrical | Replace bathroom fan with panasonic bath fan and air cycler smart switch for weatherization work. | $2,400 | [E1887153](https://nearbypermits.com/boston/permit/E1887153/) | | Aug 8, 2026 | [28 Shirley St](https://nearbypermits.com/boston/address/28-shirley-st/) | 390 ft S | Alteration or repair | Blown cellulose in attic and walls. Additional weatherization including air sealing, weather strips, and attic ventillation. | $21,091 | [SF1879712](https://nearbypermits.com/boston/permit/SF1879712/) | | Aug 7, 2026 | [75 Proctor St](https://nearbypermits.com/boston/address/75-proctor-st/) | 750 ft NE | Fire systems | Installation of Fire Alarm security device (cell back up communicator) to existing Fire Alarm located at 75 Proctor St Boston MA 02119 (100862053-02) | $1,920 | [EFA1880335](https://nearbypermits.com/boston/permit/EFA1880335/) | | Aug 3, 2026 | [500-520 Dudley St](https://nearbypermits.com/boston/address/500--520-dudley-st/) | 740 ft S | Plumbing | Disconnect/reconnect replacement RTU | $10,000 | [G1868507](https://nearbypermits.com/boston/permit/G1868507/) | | Jul 16, 2026 | [75 Proctor St](https://nearbypermits.com/boston/address/75-proctor-st/) | 750 ft NE | Electrical | Installation of fire alarm security devices to existing fire alarm located at 75 Proctor LLC 75 Proctor St Boston MA 02119 (100862053-02) | $1,920 | [ELV1869659](https://nearbypermits.com/boston/permit/ELV1869659/) | | Jun 2, 2026 | [2 Marshfield St](https://nearbypermits.com/boston/address/2-marshfield-st/) | 880 ft SE | Electrical | Low voltage alarm install | $1,200 | [ELV1856605](https://nearbypermits.com/boston/permit/ELV1856605/) | | May 29, 2026 | [17 Dennis St](https://nearbypermits.com/boston/address/17-dennis-st/) | 1,000 ft SW | Solar | Install 6.97 kW panels. Will not exceed roof panel but will add 6" to height. 17 panels total. No ESS / No Structural. | $27,000 | [E1845372](https://nearbypermits.com/boston/permit/E1845372/) | | May 6, 2026 | [17 Dennis St](https://nearbypermits.com/boston/address/17-dennis-st/) | 1,000 ft SW | Solar | Install 6.97 kW panels. Will not exceed roof panel but will add 6" to height. 17 panels total. No ESS / No Structural. | $27,000 | [SF1845369](https://nearbypermits.com/boston/permit/SF1845369/) | | May 22, 2026 | [20 Magazine St](https://nearbypermits.com/boston/address/20-magazine-st/) | 570 ft NW | Alteration or repair | Repair front stairs | $10,000 | [SF1852887](https://nearbypermits.com/boston/permit/SF1852887/) | | May 15, 2026 | [169-171 Norfolk Av](https://nearbypermits.com/boston/address/169--171-norfolk-av/) | 520 ft NE | Plumbing | Install a Rheem 30 gallon point-of-use water heater in the ceiling of men's bathroom | $1,000 | [PL1849056](https://nearbypermits.com/boston/permit/PL1849056/) | | May 7, 2026 | [17 Dennis St](https://nearbypermits.com/boston/address/17-dennis-st/) | 1,000 ft SW | Roofing | 12sq. strip & re-roof; IKO - Cambridge - Dual Black | $7,000 | [SF1843302](https://nearbypermits.com/boston/permit/SF1843302/) | | May 6, 2026 | [15 Marshfield St](https://nearbypermits.com/boston/address/15-marshfield-st/) | 990 ft SE | Alteration or repair | Install 39 replacement windows, no structural changes. | $40,773 | [SF1842035](https://nearbypermits.com/boston/permit/SF1842035/) | | May 5, 2026 | [18 Magazine St](https://nearbypermits.com/boston/address/18-magazine-st/) | 580 ft NW | Alteration or repair | Weatherization and air sealing with the mass save program. No structural changes. | $734 | [SF1844671](https://nearbypermits.com/boston/permit/SF1844671/) | ### Farther (1,000 ft to ¼ mi), 17 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 30, 2026 | [535-545 Dudley St](https://nearbypermits.com/boston/address/535--545-dudley-st/) | 0.20 mi S | Electrical | Install 2 cat6 jacks for POS. | $500 | [ELV1857189](https://nearbypermits.com/boston/permit/ELV1857189/) | | Sep 17, 2026 | [527-545 Dudley St](https://nearbypermits.com/boston/address/527--545-dudley-st/) | 0.19 mi S | Electrical | installation of controls for existing walk in coolers, door heater controls, novelty cooler shut off | $9,000 | [ELV1900822](https://nearbypermits.com/boston/permit/ELV1900822/) | | Sep 7, 2026 | [11 Albion St](https://nearbypermits.com/boston/address/11-albion-st/) | 0.20 mi S | Roofing | Remove existing rubber roofing and install new one, install new vinyl siding, install new gutter, replace 6 vinyl windows, paint some walls. | $102,300 | [SF1890221](https://nearbypermits.com/boston/permit/SF1890221/) | | Aug 3, 2026 | [100 Magazine St](https://nearbypermits.com/boston/address/100-magazine-st/) | 0.22 mi NE | Electrical | Audio Visual installation | $50,000 | [ELV1880581](https://nearbypermits.com/boston/permit/ELV1880581/) | | Jul 22, 2026 | [4-6 Robey St](https://nearbypermits.com/boston/address/4--6-robey-st/) | 0.23 mi SE | Plumbing | Gas furnace replacement | $5,500 | [G1874215](https://nearbypermits.com/boston/permit/G1874215/) | | Jul 21, 2026 | [10 E Cottage St](https://nearbypermits.com/boston/address/10-e-cottage-st/) | 0.21 mi S | Roofing | Remove all roofing, replace with new. | $66,618 | [SF1870482](https://nearbypermits.com/boston/permit/SF1870482/) | | Jul 20, 2026 | [30 E Cottage St](https://nearbypermits.com/boston/address/30-e-cottage-st/) | 0.23 mi SE | Alteration or repair | Remove 2 square siding and put new siding on. | $1,000 | [SF1870741](https://nearbypermits.com/boston/permit/SF1870741/) | | Jun 26, 2026 | [11 Albion St](https://nearbypermits.com/boston/address/11-albion-st/) | 0.20 mi S | Plumbing | replacing a boiler | $5,000 | [PL1863551](https://nearbypermits.com/boston/permit/PL1863551/) | | Jun 26, 2026 | [11 Albion St](https://nearbypermits.com/boston/address/11-albion-st/) | 0.20 mi S | Plumbing | replace boiler | $5,000 | [G1863554](https://nearbypermits.com/boston/permit/G1863554/) | | Jun 15, 2026 | [100 Magazine St](https://nearbypermits.com/boston/address/100-magazine-st/) | 0.22 mi NE | Electrical | furnish & installation of low voltage cabling & devices for telecommunications, CCTV, and access control | $300,000 | [ELV1861160](https://nearbypermits.com/boston/permit/ELV1861160/) | | Jun 8, 2026 | [535-545 Dudley St](https://nearbypermits.com/boston/address/535--545-dudley-st/) | 0.20 mi S | Plumbing | 1 Full Bath, 1 Mop Sink, 1 Hand Sink, 1 Prep Sink, 1 3 Bay Sink and 1 Floor Drain. | $550 | [PL1847188](https://nearbypermits.com/boston/permit/PL1847188/) | | Jun 3, 2026 | [535-545 Dudley St](https://nearbypermits.com/boston/address/535--545-dudley-st/) | 0.20 mi S | Electrical | Wire bakery @ 543. Wire outlets, freezer, electric oven, double convention oven, lights, fridge. | $5,000 | [E1857186](https://nearbypermits.com/boston/permit/E1857186/) | | Jun 1, 2026 | [54 Marshfield St](https://nearbypermits.com/boston/address/54-marshfield-st/) | 0.21 mi SE | Alteration or repair | fire damage repair correct V900646 | $1,000 | [SF1834961](https://nearbypermits.com/boston/permit/SF1834961/) | | May 29, 2026 | [39 Blue Hill Av](https://nearbypermits.com/boston/address/39-blue-hill-av/) | 0.22 mi W | Alteration or repair | Install two new Harvey Tribute energy-efficient double-hung windows in the basement to replace previously existing windows. Correct framing, as needed. Window specs: SunGain PLUS, Double Glazed, Double Low-E 180 RS, Argon Filled, E.Star Zone: North, U-Factor = 0.26, SHGC = 0.46 | $2,000 | [SF1842814](https://nearbypermits.com/boston/permit/SF1842814/) | | May 29, 2026 | [39 Blue Hill Av](https://nearbypermits.com/boston/address/39-blue-hill-av/) | 0.22 mi W | Other | Take down and rebuild staircase. Reuse as many materials as possible. Replace damaged treads, risers, and balusters. | $15,000 | [SF1829770](https://nearbypermits.com/boston/permit/SF1829770/) | | May 28, 2026 | [535-545 Dudley St](https://nearbypermits.com/boston/address/535--545-dudley-st/) | 0.20 mi S | Alteration or repair | Change occupancy from food market to bakery with 36A. Updating electrical panel. ran new electrical for electric powered double oven and double convection oven. No gas appliances. adding 3 sink bays in kitchen area. Installing new tile floor in kitchen. No update to bathroom. Painting entire bakery. | $45,800 | [ALT1762658](https://nearbypermits.com/boston/permit/ALT1762658/) | | May 27, 2026 | [19 Dennis St](https://nearbypermits.com/boston/address/19-dennis-st/) | 0.19 mi SW | Roofing | 10sq. strip & re-roof; IKO Dynasty - Matte Black | $7,000 | [SF1850838](https://nearbypermits.com/boston/permit/SF1850838/) | ## More on this street Other addresses on Langdon St with permits, nearest house number first: - [21 Langdon St](https://nearbypermits.com/boston/address/21-langdon-st/): newest permit Jul 7, 2025 - [16 Langdon St](https://nearbypermits.com/boston/address/16-langdon-st/): newest permit Nov 8, 2024 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-08 10:17 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, both permits at this address and 40 nearby: https://nearbypermits.com/boston/address/40-langdon-st/