# Building permits at 47 Mason St, Somerville, MA

The biggest project within a quarter mile since May 1: a $649,322 alteration or repair at 62 Talbot Ave, permitted Jul 20.

14 permits on record here. The newest, Jan 9, 2025: Remove and replace retaining wall. Within a quarter mile, the city has issued 92 more permits (90 projects) since May 1. One is for a new building, 0.24 mi away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 9, 2025 | Fence, wall or deck | Remove and replace retaining wall | $37,906 | [B24-002233](https://nearbypermits.com/somerville/permit/B24-002233/) |
| Aug 7, 2017 | Electrical | Assorted jobs first floor See permit, E17-001342 | $2,000 | [E17-001593](https://nearbypermits.com/somerville/permit/E17-001593/) |
| Aug 1, 2017 | Plumbing | Full kitchen installation, kitchen sink, dishwasher, disposal | Not listed | [P17-000693](https://nearbypermits.com/somerville/permit/P17-000693/) |
| Aug 1, 2017 | Plumbing | gas stove replacement | Not listed | [G17-000564](https://nearbypermits.com/somerville/permit/G17-000564/) |
| Jun 22, 2017 | Electrical | Install dedicated circuit with AFCI/GFCI breaker for HOOD/Microwave | $300 | [E17-001181](https://nearbypermits.com/somerville/permit/E17-001181/) |
| Jun 20, 2017 | Electrical | Electrical wiring for 2 bathrooms | $1,500 | [E17-001168](https://nearbypermits.com/somerville/permit/E17-001168/) |
| Jun 16, 2017 | Alteration or repair | Unit 1 re-plaster walls. new appliances. renovate existing bath. create new 2nd bath in former pantry. new doors. 2 new closets. No structural work | $18,000 | [B17-001074](https://nearbypermits.com/somerville/permit/B17-001074/) |
| Jun 15, 2017 | Plumbing | Full bathroom in the first floor. Full bathroom fixture replacement in the first floor. | Not listed | [P17-000559](https://nearbypermits.com/somerville/permit/P17-000559/) |
| May 24, 2017 | Alteration or repair | Remove 2 valleys on slate roof. ReInstall 2 new copper valleys. Install 20 broken roof slates. | $3,040 | [B17-000811](https://nearbypermits.com/somerville/permit/B17-000811/) |
| Sep 21, 2016 | Electrical | two family service change and adding a common meter 200 amps | $2,400 | [E16-001404](https://nearbypermits.com/somerville/permit/E16-001404/) |
| Aug 10, 2016 | Alteration or repair | Repair/Rebuild existing wood stairs to front porch above and not including concrete stairs. Replace concrete at bottom of wood stringers. New railings. | $400 | [B16-001230](https://nearbypermits.com/somerville/permit/B16-001230/) |
| Jul 15, 2016 | Electrical | remodel kitchen | $3,000 | [E16-001166](https://nearbypermits.com/somerville/permit/E16-001166/) |
| Jul 13, 2016 | Plumbing | Fixture replacement for a full bathroom with a shower in the second floor, a full kitchen in the second floor and full bathroom with a bathtub in the third floor. | Not listed | [P16-000551](https://nearbypermits.com/somerville/permit/P16-000551/) |
| Jun 28, 2016 | Alteration or repair | Remove/Replace kitchen appliances and cabinets Remove/Replace toilet and sink in 2nd floor bathroom. Remove/Replace 3rd floor bathroom; replace 1 window. Add 3 new closets in existing bedrooms. Create opening in non-bearing/non-structural wall between dining room and living room. Reinforce existing  | $18,000 | [B16-001015](https://nearbypermits.com/somerville/permit/B16-001015/) |

## Within ¼ mi since May 1, 2026

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

### Next door (under 250 ft), 6 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | [37 Mason St](https://nearbypermits.com/somerville/address/37-mason-st/) | 130 ft SW | Plumbing | "Replacement of steam boiler in basement Purepro AGS5-HN " | Not listed | [P26-000577](https://nearbypermits.com/somerville/permit/P26-000577/) |
| Oct 1, 2026 | [37 Mason St](https://nearbypermits.com/somerville/address/37-mason-st/) | 130 ft SW | Plumbing | "Replacement of steam boiler in basement Purepro AGS5-HN " | Not listed | [G26-000448](https://nearbypermits.com/somerville/permit/G26-000448/) |
| Oct 1, 2026 | [37 Mason St](https://nearbypermits.com/somerville/address/37-mason-st/) | 130 ft SW | Plumbing | repair gas leaks | Not listed | [G26-000450](https://nearbypermits.com/somerville/permit/G26-000450/) |
| Jul 13, 2026 | [45 Mason St](https://nearbypermits.com/somerville/address/45-mason-st/) | 45 ft SW | Alteration or repair | Weatherization, Air Sealing, and Insulation | $17,977 | [B26-000987](https://nearbypermits.com/somerville/permit/B26-000987/) |
| May 29, 2026 | [45 Mason St](https://nearbypermits.com/somerville/address/45-mason-st/) | 45 ft SW | Electrical | Knob and Tube Remediation (Partial House) | $24,802 | [E26-000767](https://nearbypermits.com/somerville/permit/E26-000767/) |
| May 14, 2026 | [4 Ossipee Rd](https://nearbypermits.com/somerville/address/4-ossipee-rd/) | 180 ft W | Roofing | strip re-roof | $20,000 | [B26-000531](https://nearbypermits.com/somerville/permit/B26-000531/) |

### This block (250 to 1,000 ft), 63 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 8, 2026 | [1077 Broadway](https://nearbypermits.com/somerville/address/1077-broadway/) | 980 ft W | Plumbing | Replace gas furnace | Not listed | [G26-000461](https://nearbypermits.com/somerville/permit/G26-000461/) |
| Oct 8, 2026 | [52 Powder House Blvd](https://nearbypermits.com/somerville/address/52-powder-house-blvd/) | 460 ft SE | Alteration or repair | Installation of (1) Double Hung Window Insert, (1) Casement Window, (2) Fixed Rectangle Window Inserts in existing openings. No structural changes | $13,302 | [B26-001551](https://nearbypermits.com/somerville/permit/B26-001551/) |
| Oct 8, 2026 | [83 Irving St](https://nearbypermits.com/somerville/address/83-irving-st/) | 790 ft S | Alteration or repair | Removal and eplacement of an existing deck in the back of the house | $21,600 | [B26-001426](https://nearbypermits.com/somerville/permit/B26-001426/) |
| Oct 6, 2026 | [11 Whitman St](https://nearbypermits.com/somerville/address/11-whitman-st/) | 410 ft SW | Electrical | Installing Mitsubishi 36K BTU Outdoor Unit, Mitsubishi 6K BTU Indoor Wall Unit, (2) Mitsubishi 9K BTU Indoor Wall Unit, Mitsubishi 12K BTU Indoor Wall Unit, and service upgrade from 100AMPs to 400AMPs. | $4,500 | [E26-001056](https://nearbypermits.com/somerville/permit/E26-001056/) |
| Oct 6, 2026 | [905 Broadway](https://nearbypermits.com/somerville/address/905-broadway/) | 900 ft SE | Alteration or repair | Remove one (1) existing layer of siding; install new Tyvek house wrap, 3/8" insulation board and new vinyl siding; install aluminum wrap on all windows, doors, fascias and soffits; remove all existing gutters and install new gutters including all labor and materials; remove existing deck railings an | $78,799 | [B26-000979](https://nearbypermits.com/somerville/permit/B26-000979/) |
| Oct 5, 2026 | [915 Broadway](https://nearbypermits.com/somerville/address/915-broadway/) | 840 ft SE | Plumbing | Tub to shower conversion in 1st floor bathroom | Not listed | [P26-000571](https://nearbypermits.com/somerville/permit/P26-000571/) |
| Oct 1, 2026 | [35 Electric Ave](https://nearbypermits.com/somerville/address/35-electric-ave/) | 470 ft W | Mechanical (HVAC) | Ductwork for dual fuel furnace and heatpump | $24,500 | [SM26-000181](https://nearbypermits.com/somerville/permit/SM26-000181/) |
| Oct 1, 2026 | [128 Powder House Blvd](https://nearbypermits.com/somerville/address/128-powder-house-blvd/) | 870 ft NW | Electrical | Upgrade Service from 200 amps to 400 amps | $8,900 | [E26-001434](https://nearbypermits.com/somerville/permit/E26-001434/) |
| Sep 29, 2026 | [905 Broadway](https://nearbypermits.com/somerville/address/905-broadway/) | 900 ft SE | Electrical | Temporarily remove 1 EV charger, 2 flood lights, 1 sconce light, and 1 exterior receptacle for siding replacement. Reinstall existing electrical equipment after siding work is completed. Service removal/disconnect is not included and will not be required. | $1,100 | [E26-001422](https://nearbypermits.com/somerville/permit/E26-001422/) |
| Sep 29, 2026 | [7 Corinthian Rd](https://nearbypermits.com/somerville/address/7-corinthian-rd/) | 770 ft SW | Electrical | Upgrade existing electrical service from 100 amps to 200 amps . Provide new electrical wiring and modifications associated with the residential renovation, including: - New wiring for first-floor mudroom, entry porch, dining room, powder room, and sliding-door area. - Complete wiring for three secon | $24,000 | [E26-001337](https://nearbypermits.com/somerville/permit/E26-001337/) |
| Sep 28, 2026 | [22 Burnham St](https://nearbypermits.com/somerville/address/22-burnham-st/) | 320 ft S | Alteration or repair | Emergency reapair of deck columns and rails | $8,650 | [B26-001480](https://nearbypermits.com/somerville/permit/B26-001480/) |
| Sep 16, 2026 | [7 Corinthian Rd](https://nearbypermits.com/somerville/address/7-corinthian-rd/) | 770 ft SW | Addition | Building foundation (sonotube) -BUILDING/ADDITION PERMIT B26-001007 | $15,000 | [B26-001127](https://nearbypermits.com/somerville/permit/B26-001127/) |
| Sep 9, 2026 | [102 Wallace St](https://nearbypermits.com/somerville/address/102-wallace-st/) | 730 ft S | Mechanical (HVAC) | Apt 1 HVAC SYSTEM 1: (1) CCOXHBMZ427HP heat pump condenser, (1) CCOXHBWM06 ductless, (1) CCOXHBWM18 18k ductless HVAC SYSTEM 2:Â (1) CUSTOM COMFORT CCOXHBMZ427HP heat pump condenser, (3) CCOXHBWM06 ductless Apt 2 HVAC SYSTEM 1: (1) CUSTOM COMFORT CCOXHBMZ427HP heat pump condenser, (1) CCOXHBWM06 duc | $40,000 | [B26-001324](https://nearbypermits.com/somerville/permit/B26-001324/) |
| Sep 8, 2026 | [19 Electric Ave](https://nearbypermits.com/somerville/address/19-electric-ave/) | 320 ft W | Alteration or repair | Remove/replace 1 existing exterior door. No structural work being done. | $3,422 | [B26-001316](https://nearbypermits.com/somerville/permit/B26-001316/) |
| Sep 3, 2026 | [20 Lower Campus Rd](https://nearbypermits.com/somerville/address/20-lower-campus-rd/) | 520 ft E | Fence, wall or deck | ELLIS OVAL TUFTS UNIVERSITY: Provide rental of one pre-fabricated ADA Ramp and landing to accommodate handicap seating at bleacher section. Seating area is 5 ft deep x 15 ft wide. Ramp is 4 ft wide with appropriate slope and railings. Erect 19 September 2026 and remove after November 23, 2026. | $10,672 | [B26-001290](https://nearbypermits.com/somerville/permit/B26-001290/) |
| Sep 2, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Electrical | Provide low voltage interlock wiring for HVAC upgrades. All work will be done above ground. 1 – New Fume Hood (Mount and wire factory provided sensors, and interface the factory furnished and installed BACnet card with the BMS, all associated control components furnished by the equipment manufactu | $5,000 | [E26-001300](https://nearbypermits.com/somerville/permit/E26-001300/) |
| Aug 31, 2026 | [52 Powder House Blvd](https://nearbypermits.com/somerville/address/52-powder-house-blvd/) | 460 ft SE | Alteration or repair | Installation of (22) Double Hung Window Inserts in existing openings. Like-for-like with no structural changes. | $53,366 | [B26-001328](https://nearbypermits.com/somerville/permit/B26-001328/) |
| Aug 27, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Mechanical (HVAC) | Renovation of the Joshi Lab at Tufts University. Demo existing ductwork & reinstall as shown on HVAC Drawings. No equipment outside | $50,000 | [SM26-000126](https://nearbypermits.com/somerville/permit/SM26-000126/) |
| Aug 27, 2026 | [7 Corinthian Rd](https://nearbypermits.com/somerville/address/7-corinthian-rd/) | 770 ft SW | Addition | First-floor addition, second-floor interior renovation, and new third-floor addition with mansard roof and dormers to existing residence. Includes foundation, framing, siding, windows/doors, roofing, insulation, plaster, electrical service upgrade to 200A, plumbing for two new bathrooms, and new HVA | $522,404 | [B26-001007](https://nearbypermits.com/somerville/permit/B26-001007/) |
| Aug 26, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Electrical | Install 45 total cables, 20 locations. | $15,014 | [E26-001248](https://nearbypermits.com/somerville/permit/E26-001248/) |
| Aug 18, 2026 | [128 Powder House Blvd](https://nearbypermits.com/somerville/address/128-powder-house-blvd/) | 870 ft NW | Plumbing | fixtures replacement of kitchen sink and dishwasher of same spot and two tankless water heater | Not listed | [P26-000422](https://nearbypermits.com/somerville/permit/P26-000422/) |
| Aug 18, 2026 | [128 Powder House Blvd](https://nearbypermits.com/somerville/address/128-powder-house-blvd/) | 870 ft NW | Plumbing | 2. new gas line for water heater tankless and gas stove replacement for 2nd floor | Not listed | [G26-000340](https://nearbypermits.com/somerville/permit/G26-000340/) |
| Aug 17, 2026 | [102 Wallace St](https://nearbypermits.com/somerville/address/102-wallace-st/) | 730 ft S | Electrical | 320 amp service upgrade, wire for 3 mini split condensers, 2 service outlets, 2 ft 4 baseboard bathroom heaters. B26-001324 | $15,000 | [E26-001188](https://nearbypermits.com/somerville/permit/E26-001188/) |
| Aug 17, 2026 | [85 Chandler St](https://nearbypermits.com/somerville/address/85-chandler-st/) | 970 ft S | Alteration or repair | Rebuild existing 3 seasons porch in existing footprint due to rot. This includes all new framing and footings. | $27,300 | [B26-001204](https://nearbypermits.com/somerville/permit/B26-001204/) |
| Aug 7, 2026 | [85 Chandler St](https://nearbypermits.com/somerville/address/85-chandler-st/) | 970 ft S | Electrical | Rough and finish electrical on 3 season porch | $1,600 | [E26-001151](https://nearbypermits.com/somerville/permit/E26-001151/) |
| Aug 5, 2026 | [26 Leonard St](https://nearbypermits.com/somerville/address/26-leonard-st/) | 430 ft SE | Electrical | Install EV charger | $1,500 | [E26-001136](https://nearbypermits.com/somerville/permit/E26-001136/) |
| Aug 3, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Electrical | Electrical remodel | $25,000 | [E26-001113](https://nearbypermits.com/somerville/permit/E26-001113/) |
| Jul 31, 2026 | [25 Latin Way](https://nearbypermits.com/somerville/address/25-latin-way/) | 810 ft N | Plumbing | Install Ansul valves and replace CO solenoid valves at kitchen equipment stations | Not listed | [G26-000344](https://nearbypermits.com/somerville/permit/G26-000344/) |
| Jul 30, 2026 | [42 Whitman St](https://nearbypermits.com/somerville/address/42-whitman-st/) | 710 ft W | Plumbing | Kitchen sink disposal and dishwasher | Not listed | [P26-000426](https://nearbypermits.com/somerville/permit/P26-000426/) |
| Jul 30, 2026 | [128 Powder House Blvd](https://nearbypermits.com/somerville/address/128-powder-house-blvd/) | 870 ft NW | Alteration or repair | Replace existing kitchen cabinets and counter, reconnect machines on existing laundry room fix damage wall, run metal pipe for dryer, plumbing work by MassCode, electrical work by MassCode, finish carpentry, | $42,000 | [B26-001101](https://nearbypermits.com/somerville/permit/B26-001101/) |
| Jul 28, 2026 | [25 Latin Way](https://nearbypermits.com/somerville/address/25-latin-way/) | 810 ft N | Electrical | Add fire alarm monitor modules to Ansul and CO systems that are being installed by others. | $9,500 | [E26-001096](https://nearbypermits.com/somerville/permit/E26-001096/) |
| Jul 27, 2026 | [20 Lower Campus Rd](https://nearbypermits.com/somerville/address/20-lower-campus-rd/) | 520 ft E | Electrical | Installation of (1) 8' x 8' x 6" precast concrete pad. This pad will be used to stage (1) 225kVA transformer and (1) electrical distribution cabinet for an EV project. The electrical feed to the transformer is coming from existing building infrastructure. | $5,000 | [B26-001019](https://nearbypermits.com/somerville/permit/B26-001019/) |
| Jul 27, 2026 | [44 Walker St](https://nearbypermits.com/somerville/address/44-walker-st/) | 740 ft SE | Alteration or repair | Interior repairs due to water damage. Open walls, insulation, light electrical. | $9,908 | [B26-000974](https://nearbypermits.com/somerville/permit/B26-000974/) |
| Jul 24, 2026 | [42 Whitman St](https://nearbypermits.com/somerville/address/42-whitman-st/) | 710 ft W | Plumbing | Sub meters | Not listed | [P26-000417](https://nearbypermits.com/somerville/permit/P26-000417/) |
| Jul 22, 2026 | [128 Powder House Blvd](https://nearbypermits.com/somerville/address/128-powder-house-blvd/) | 870 ft NW | Electrical | Install new branch circuits for the kitchen and laundry, including dedicated circuits for the dishwasher, garbage disposal, range hood, countertop receptacles, refrigerator, and washing machine | $4,500 | [E26-001061](https://nearbypermits.com/somerville/permit/E26-001061/) |
| Jul 21, 2026 | [25 Latin Way](https://nearbypermits.com/somerville/address/25-latin-way/) | 810 ft N | Electrical | Furnish and install wiring for multiple Honeywell E3 (c.o. detection) systems & Ansul, gas valve to cooking equipment wiring. | $12,000 | [E26-000949](https://nearbypermits.com/somerville/permit/E26-000949/) |
| Jul 20, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Plumbing | addition of two sinks, two eyewash, dishwaher connection | Not listed | [P26-000411](https://nearbypermits.com/somerville/permit/P26-000411/) |
| Jul 20, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Alteration or repair | Renovation of existing Lab Space for research group. Scope consists of demolition of existing flooring/finishes and partial removal of existing wall to accommodate new secondary lab room. MEP demolition includes removal of existing Plumbing (where shown), HVAC equipment and piping (as shown), as wel | $649,322 | [B26-000798](https://nearbypermits.com/somerville/permit/B26-000798/) |
| Jul 13, 2026 | [49 Electric Ave](https://nearbypermits.com/somerville/address/49-electric-ave/) | 630 ft W | Electrical | Replace fire-damaged wiring, make safe all affected circuits, and install AFCI breakers as required by code. | $3,000 | [E26-000914](https://nearbypermits.com/somerville/permit/E26-000914/) |
| Jul 10, 2026 | [49 Electric Ave](https://nearbypermits.com/somerville/address/49-electric-ave/) | 630 ft W | Alteration or repair | Remove existing ceilings in bedrooms 1 & 2 of unit 1. Install sound attenuation (hush frame), insulate w/ fiberwool product, and cover with new 5/8" wallboard & plaster. | $12,781 | [B26-000968](https://nearbypermits.com/somerville/permit/B26-000968/) |
| Jul 7, 2026 | [20 Lower Campus Rd](https://nearbypermits.com/somerville/address/20-lower-campus-rd/) | 520 ft E | Electrical | Install EV charging stations with precast concrete pads and bollards WORK @ 18 LOWER CAMPUS RD- COHEN LOT | $98,000 | [E26-000951](https://nearbypermits.com/somerville/permit/E26-000951/) |
| Jul 1, 2026 | [34 Whitman St](https://nearbypermits.com/somerville/address/34-whitman-st/) | 650 ft W | Plumbing | remodel first floor bath | Not listed | [P26-000376](https://nearbypermits.com/somerville/permit/P26-000376/) |
| Jun 30, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Electrical | Demolition/make-safe, temporary lighting and power, branch power, lighting, lighting controls/switching, Wiremold/raceway, overhead service panels, equipment connections, fire alarm device work, low-voltage sleeves/pathways, cable tray, and structured cabling. | $95,000 | [E26-000886](https://nearbypermits.com/somerville/permit/E26-000886/) |
| Jun 30, 2026 | [67 Simpson Ave](https://nearbypermits.com/somerville/address/67-simpson-ave/) | 780 ft S | Alteration or repair | ONE Pipe boot replacement on section of roof above bathroom. Slate Roof maintenance on roof above bathroom. | $4,999 | [B26-000898](https://nearbypermits.com/somerville/permit/B26-000898/) |
| Jun 29, 2026 | [34 Whitman St](https://nearbypermits.com/somerville/address/34-whitman-st/) | 650 ft W | Electrical | Bathroom renovation | $500 | [E26-000876](https://nearbypermits.com/somerville/permit/E26-000876/) |
| Jun 24, 2026 | [74 Simpson Ave](https://nearbypermits.com/somerville/address/74-simpson-ave/) | 710 ft SW | Electrical | Wire and install power for hvac air handler and AC compressor | $800 | [E26-000589](https://nearbypermits.com/somerville/permit/E26-000589/) |
| Jun 24, 2026 | [85 Chandler St](https://nearbypermits.com/somerville/address/85-chandler-st/) | 970 ft S | Alteration or repair | Remove 8- existing windows and 1 door from front 3-seasons porch. Replace windows with new construction black exterior windows to match existing house. Install new door. Install composite trim around the windows and create shaker panels under windows. Install interior composite window trim and insta | $25,260 | [B26-000746](https://nearbypermits.com/somerville/permit/B26-000746/) |
| Jun 23, 2026 | [55 Ossipee Rd](https://nearbypermits.com/somerville/address/55-ossipee-rd/) | 850 ft NW | Plumbing | replace broken 4" drain pipe | Not listed | [P26-000367](https://nearbypermits.com/somerville/permit/P26-000367/) |
| Jun 22, 2026 | [34 Whitman St](https://nearbypermits.com/somerville/address/34-whitman-st/) | 650 ft W | Alteration or repair | remove tub add shower and tile as necessary | $10,500 | [B26-000843](https://nearbypermits.com/somerville/permit/B26-000843/) |
| Jun 18, 2026 | [929 Broadway](https://nearbypermits.com/somerville/address/929-broadway/) | 740 ft SE | Alteration or repair | Replace one railing on porch | $2,130 | [B26-000780](https://nearbypermits.com/somerville/permit/B26-000780/) |
| Jun 15, 2026 | [50 Simpson Ave](https://nearbypermits.com/somerville/address/50-simpson-ave/) | 990 ft SW | Alteration or repair | insulating exterior walls using cellulose R15. insulating basement rim joists with fiberglass R19. insulating and air sealing attic, adding cellulose to bring R value to R49. | $8,099 | [B26-000790](https://nearbypermits.com/somerville/permit/B26-000790/) |
| Jun 8, 2026 | [38 Ossipee Rd](https://nearbypermits.com/somerville/address/38-ossipee-rd/) | 570 ft W | Mechanical (HVAC) | New air conditioning and heating dual fuel with heat pump system and ERV installation | $43,770 | [SM26-000087](https://nearbypermits.com/somerville/permit/SM26-000087/) |
| Jun 4, 2026 | [42 Whitman St](https://nearbypermits.com/somerville/address/42-whitman-st/) | 710 ft W | Plumbing | Kitchen remodel | Not listed | [P26-000271](https://nearbypermits.com/somerville/permit/P26-000271/) |
| Jun 3, 2026 | [42 Whitman St](https://nearbypermits.com/somerville/address/42-whitman-st/) | 710 ft W | Electrical | Kitchen Remodel | $10,000 | [E26-000790](https://nearbypermits.com/somerville/permit/E26-000790/) |
| Jun 3, 2026 | [62 Talbot Ave](https://nearbypermits.com/somerville/address/62-talbot-ave/) | 750 ft N | Alteration or repair | Alteration of Classroom Space - Update floors, ceiling tiles and seating | $259,270 | [B26-000704](https://nearbypermits.com/somerville/permit/B26-000704/) |
| Jun 2, 2026 | [15 Leonard St](https://nearbypermits.com/somerville/address/15-leonard-st/) | 590 ft SE | Electrical | upgrade existing 200A 2-gang meter socket with disconnects to 400A 2-gang meter socket with disconnects. Also installing car charger. | $16,659 | [E26-000667](https://nearbypermits.com/somerville/permit/E26-000667/) |
| Jun 2, 2026 | [82 Wallace St](https://nearbypermits.com/somerville/address/82-wallace-st/) | 930 ft S | Alteration or repair | Residential weatherization/air sealing. No structural changes. ( 843335, 982183401) ( 82, Unit 2) | $1,624 | [B26-000524](https://nearbypermits.com/somerville/permit/B26-000524/) |
| May 26, 2026 | [82 Wallace St](https://nearbypermits.com/somerville/address/82-wallace-st/) | 930 ft S | Alteration or repair | Residential weatherization/air sealing. No structural changes. ( 864017) ( Unit 1) | $2,000 | [B26-000711](https://nearbypermits.com/somerville/permit/B26-000711/) |
| May 27, 2026 | [23 Mason St](https://nearbypermits.com/somerville/address/23-mason-st/) | 310 ft SW | Electrical | Run circuit for outside porch outlet.install ceiling outside sense light | $900 | [E26-000755](https://nearbypermits.com/somerville/permit/E26-000755/) |
| May 14, 2026 | [68 Electric Ave](https://nearbypermits.com/somerville/address/68-electric-ave/) | 910 ft W | Electrical | Install Ductless Mini Split - First Floor Apartment | $2,500 | [E26-000184](https://nearbypermits.com/somerville/permit/E26-000184/) |
| May 13, 2026 | [100 Wallace St](https://nearbypermits.com/somerville/address/100-wallace-st/) | 770 ft S | Alteration or repair | Replacing 28' of sill plate, constructing 20' of skirt wall, replacing 7 support columns under existing beams, adding 3 support columns and new steel beam to support another section of the floor system | $37,674 | [B26-000606](https://nearbypermits.com/somerville/permit/B26-000606/) |
| May 12, 2026 | [937 Broadway](https://nearbypermits.com/somerville/address/937-broadway/) | 680 ft SE | Alteration or repair | Replace (8) existing storm windows with new Pella 250 double-hung windows (42" x 54") black. Reframe existing window openings as required and replace exterior siding as needed on second floor enclosed front porch. | $10,000 | [B26-000332](https://nearbypermits.com/somerville/permit/B26-000332/) |
| May 6, 2026 | [42 Whitman St](https://nearbypermits.com/somerville/address/42-whitman-st/) | 710 ft W | Alteration or repair | Update kitchen same layout replacing cabinets | $30,800 | [B26-000532](https://nearbypermits.com/somerville/permit/B26-000532/) |

### Farther (1,000 ft to ¼ mi), 23 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | [88 Ossipee Rd](https://nearbypermits.com/somerville/address/88-ossipee-rd/) | 0.24 mi NW | Roofing | Remove all roofing materials and install premium Owens Corning roofing materials. Remove all debris. | $21,807 | [B26-001540](https://nearbypermits.com/somerville/permit/B26-001540/) |
| Sep 14, 2026 | [58 Irving St](https://nearbypermits.com/somerville/address/58-irving-st/) | 0.20 mi S | Electrical | Wiring replacement for a gas boiler. This is a straight equipment replacement. | $500 | [E26-001334](https://nearbypermits.com/somerville/permit/E26-001334/) |
| Sep 10, 2026 | [58 Irving St](https://nearbypermits.com/somerville/address/58-irving-st/) | 0.20 mi S | Plumbing | Replacement of Existing Cross Connection Device. | Not listed | [P26-000538](https://nearbypermits.com/somerville/permit/P26-000538/) |
| Sep 10, 2026 | [58 Irving St](https://nearbypermits.com/somerville/address/58-irving-st/) | 0.20 mi S | Plumbing | Replacement of Existing Boiler | Not listed | [G26-000420](https://nearbypermits.com/somerville/permit/G26-000420/) |
| Sep 9, 2026 | [9 Summit St](https://nearbypermits.com/somerville/address/9-summit-st/) | 0.24 mi SE | Electrical | Hard wired interconnected smokes | $1,600 | [E26-000178](https://nearbypermits.com/somerville/permit/E26-000178/) |
| Sep 1, 2026 | [1 Walker St](https://nearbypermits.com/somerville/address/1-walker-st/) | 0.22 mi SE | Demolition | Demolish existing outdoor covered garage PERMIT TO REBUILD B26-000383 DEMO ON OR AFTER SEPTEMBER 9, 2026 | $10,000 | [D26-000018](https://nearbypermits.com/somerville/permit/D26-000018/) |
| Aug 27, 2026 | [872 Broadway](https://nearbypermits.com/somerville/address/872-broadway/) | 0.24 mi SE | New building | Buildout of Physical Therapy Office | $20,000 | [B26-000836](https://nearbypermits.com/somerville/permit/B26-000836/) |
| Aug 20, 2026 | [161 College Ave](https://nearbypermits.com/somerville/address/161-college-ave/) | 0.24 mi E | Alteration or repair | Insulation + Air Sealing | $1,000 | [B26-001292](https://nearbypermits.com/somerville/permit/B26-001292/) |
| Aug 17, 2026 | [898 Broadway](https://nearbypermits.com/somerville/address/898-broadway/) | 0.20 mi SE | Alteration or repair | Interior renovation of existing attic: remove drywall, install new insulation, install new drywall, replace five windows, install new PFJ trim, and build a 151" window‑seat bench with four cubbies. | $33,250 | [B26-000756](https://nearbypermits.com/somerville/permit/B26-000756/) |
| Aug 11, 2026 | [43 Irving St](https://nearbypermits.com/somerville/address/43-irving-st/) | 0.24 mi S | Alteration or repair | Replace main beams. Sister 40 floor joists repoint interior foundation. | $64,845 | [B26-001051](https://nearbypermits.com/somerville/permit/B26-001051/) |
| Jul 16, 2026 | [1 Walker St](https://nearbypermits.com/somerville/address/1-walker-st/) | 0.22 mi SE | Electrical | 400A Electrical Service upgrade in a Two Family House. Addition of public meter. | $6,500 | [E26-000976](https://nearbypermits.com/somerville/permit/E26-000976/) |
| Jul 16, 2026 | [1 Walker St](https://nearbypermits.com/somerville/address/1-walker-st/) | 0.22 mi SE | Electrical | Electrical work in the detached garage B26-000383 | $3,500 | [E26-000539](https://nearbypermits.com/somerville/permit/E26-000539/) |
| Jul 13, 2026 | [9 Summit St](https://nearbypermits.com/somerville/address/9-summit-st/) | 0.24 mi SE | Mechanical (HVAC) | Installation of new air source heat pump installed in basement servicing the first floor through new ductwork | $25,133 | [SM26-000046](https://nearbypermits.com/somerville/permit/SM26-000046/) |
| Jul 9, 2026 | [898 Broadway](https://nearbypermits.com/somerville/address/898-broadway/) | 0.20 mi SE | Electrical | Demo make safe exposed wiring in attic, install new outlets and LED for general lighting | $2,900 | [E26-000983](https://nearbypermits.com/somerville/permit/E26-000983/) |
| Jul 9, 2026 | [80 Electric Ave](https://nearbypermits.com/somerville/address/80-electric-ave/) | 0.20 mi W | Roofing | Repoint existing masonry chimney from crown to flashing line, install new stainless steel chimney cap, perform waterproofing repairs around two existing pipe flanges, and complete minor slate roof repairs including replacement of one missing slate and reattachment of one loose slate. | $4,700 | [B26-000954](https://nearbypermits.com/somerville/permit/B26-000954/) |
| Jul 8, 2026 | [16 Powder House Blvd](https://nearbypermits.com/somerville/address/16-powder-house-blvd/) | 0.20 mi SE | Roofing | Remove and dispose of the existing garage roofing system down to the concrete deck. Install new tapered polyiso insulation and a fully adhered 60 mil white TPO roofing membrane, including all required flashing, edge metal, and waterproofing details. Install new 5" seamless aluminum gutter system and | $10,376 | [B26-000946](https://nearbypermits.com/somerville/permit/B26-000946/) |
| Jul 7, 2026 | [53 Chandler St](https://nearbypermits.com/somerville/address/53-chandler-st/) | 0.24 mi S | Mechanical (HVAC) | Install ducted heat pump systems | $38,500 | [SM26-000065](https://nearbypermits.com/somerville/permit/SM26-000065/) |
| Jul 2, 2026 | [53 Chandler St](https://nearbypermits.com/somerville/address/53-chandler-st/) | 0.24 mi S | Plumbing | Install plumbing for new home. | Not listed | [P26-000329](https://nearbypermits.com/somerville/permit/P26-000329/) |
| May 19, 2026 | [14 Whitfield Rd](https://nearbypermits.com/somerville/address/14-whitfield-rd/) | 0.21 mi NW | Alteration or repair | Remove all siding materials and install insulated vinyl siding. Remove all debris. | $66,583 | [B26-000679](https://nearbypermits.com/somerville/permit/B26-000679/) |
| May 11, 2026 | [12 Teele Ave](https://nearbypermits.com/somerville/address/12-teele-ave/) | 0.19 mi NW | Electrical | Rewire front entry switches and 2 lights | $1,100 | [E26-000653](https://nearbypermits.com/somerville/permit/E26-000653/) |
| May 7, 2026 | [1 Walker St](https://nearbypermits.com/somerville/address/1-walker-st/) | 0.22 mi SE | Plumbing | bath bar sink | Not listed | [P26-000278](https://nearbypermits.com/somerville/permit/P26-000278/) |
| May 7, 2026 | [14 Whitfield Rd](https://nearbypermits.com/somerville/address/14-whitfield-rd/) | 0.21 mi NW | Electrical | Electrical work for siding replacement | $1,000 | [E26-000649](https://nearbypermits.com/somerville/permit/E26-000649/) |
| May 7, 2026 | [12 Teele Ave](https://nearbypermits.com/somerville/address/12-teele-ave/) | 0.19 mi NW | Roofing | Create new entry door to 10 Teele Ave, first floor unit and add soundproofing wall between prev. shared entry. Create larger opening to laundry closet. Extend HVAC return vent in 2nd floor room. Replace entry door at 12 Teele. Remove existing entry door from prev. shared entry. Add supplemental heat | $66,340 | [B26-000544](https://nearbypermits.com/somerville/permit/B26-000544/) |

## Zoning requests nearby

We don't list zoning cases for Somerville yet. Look them up on the city's Zoning Board of Appeals page: https://www.somervillema.gov/departments/zoning-board-appeals

## More on this street

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

- [45 Mason St](https://nearbypermits.com/somerville/address/45-mason-st/): newest permit Jul 13, 2026
- [37 Mason St](https://nearbypermits.com/somerville/address/37-mason-st/): newest permit Oct 1, 2026
- [34 Mason St](https://nearbypermits.com/somerville/address/34-mason-st/): newest permit Feb 18, 2026
- [31 Mason St](https://nearbypermits.com/somerville/address/31-mason-st/): newest permit Feb 11, 2025
- [23 Mason St](https://nearbypermits.com/somerville/address/23-mason-st/): newest permit May 27, 2026
- [21 Mason St](https://nearbypermits.com/somerville/address/21-mason-st/): newest permit Dec 4, 2025
- [15 Mason St](https://nearbypermits.com/somerville/address/15-mason-st/): newest permit Feb 4, 2026

---
Source: Somerville Inspectional Services Division permit data (https://data.somervillema.gov/d/nneb-s3f7), SomerStat, City of Somerville, ODbL 1.0 (https://opendatacommons.org/licenses/odbl/1-0/). Checked 2026-10-09 08:41 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Contains information from Applications for Permits and Licenses (SomerStat, City of Somerville), which is made available here under the Open Database License (ODbL). Database: https://data.somervillema.gov/d/nneb-s3f7 License: https://opendatacommons.org/licenses/odbl/1-0/

Map, all 14 permits at this address and 92 nearby: https://nearbypermits.com/somerville/address/47-mason-st/