# Building permits at 51 Walnut St, Boston, MA Five permits on record here. The newest, May 22: Raze existing 1 story garage on 35 Walnut Street. Within a quarter mile, the city has issued 27 more permits (24 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | May 22, 2026 | New building | Raze existing 1 story garage on 35 Walnut Street, and erect a new 1 story, 4 door garage spanning across 35 Walnut and the abutting 51 Walnut (Both properties owned by Applicant). | $125,000 | [ERT1676367](https://nearbypermits.com/boston/permit/ERT1676367/) | | May 22, 2026 | Alteration or repair | Combine parcel 1809178000 (1,600 Sq. Ft.) with parcel 1809177001 (2,782 Sq. Ft.). See ert 1676367. | Not listed | [ALT1707721](https://nearbypermits.com/boston/permit/ALT1707721/) | | Oct 31, 2025 | Demolition | Raze existing 1 story garage at 35-51 Walnut St.;DIG SAFE #2025-431-3096 FDC - 1791560 | $20,000 | [SF1793758](https://nearbypermits.com/boston/permit/SF1793758/) | | Nov 23, 2016 | Electrical | Lamp &; Ballast change (6) Fixtures (83) | Not listed | [E659448](https://nearbypermits.com/boston/permit/E659448/) | | Apr 20, 2011 | Roofing | Roof Replacement- Remove Existing Roof Materials. Install new Rubber Roof on 3 Sections. Install new Architectural Shingles on all Roof Structures. | $11,163 | [SF72789](https://nearbypermits.com/boston/permit/SF72789/) | ## Within ¼ mi since May 1, 2026 27 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 | |---|---|---|---|---|---|---| | May 28, 2026 | [87 Maple St](https://nearbypermits.com/boston/address/87-maple-st/) | 240 ft NE | Alteration or repair | 1.- Replace with anew 2.- replace new slnding 3.- install pvc wood an door trims 4.- install water guttars square feet roof.30 SQ cement 30 sq all window ond | $70,000 | [SF1849425](https://nearbypermits.com/boston/permit/SF1849425/) | ### This block (250 to 1,000 ft), 16 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 30, 2026 | [731 Truman Pw](https://nearbypermits.com/boston/address/731-truman-pw/) | 510 ft SE | Alteration or repair | Creation of an Accessory Dwelling Unit (ADU) within the existing basement of a two-family residential dwelling. | $110,000 | [ALT1828804](https://nearbypermits.com/boston/permit/ALT1828804/) | | Aug 25, 2026 | [34 Oak St](https://nearbypermits.com/boston/address/34-oak-st/) | 980 ft N | Electrical | installed six recessed lights and relocate 5 devices | $15,000 | [E1892886](https://nearbypermits.com/boston/permit/E1892886/) | | Aug 13, 2026 | [8 Pine St](https://nearbypermits.com/boston/address/8-pine-st/) | 430 ft NW | Electrical | Wire exterior heat pump and GFI outlet | $1,200 | [E1887001](https://nearbypermits.com/boston/permit/E1887001/) | | Aug 12, 2026 | [58 Oak St](https://nearbypermits.com/boston/address/58-oak-st/) | 670 ft N | Alteration or repair | Kneewall and basement sill insulation | $14,938 | [SF1871681](https://nearbypermits.com/boston/permit/SF1871681/) | | Aug 10, 2026 | [13 Williams Av](https://nearbypermits.com/boston/address/13-williams-av/) | 860 ft SE | Electrical | Install #10 AWG circuit with 35A 2-pole GFCI breaker to 60-amp AC disconnect with surge arrester sizing per manufacturer name plate. • Install a 20-amp circuit with 20A AFCI/GFCI breaker for a service receptacle with in-use weatherproof cover. | $3,000 | [E1882603](https://nearbypermits.com/boston/permit/E1882603/) | | Aug 10, 2026 | [13 Williams Av](https://nearbypermits.com/boston/address/13-williams-av/) | 860 ft SE | Electrical | Install #10 AWG circuit and a #12 AWG with 35A 2-pole GFCI breaker to 60-amp AC disconnect with surge arrester each sizing per manufacturer name plate. • Install 2 20-amp circuit with 20A AFCI/GFCI breaker for a service receptacle with in-useweatherproof cover. | $3,000 | [E1882601](https://nearbypermits.com/boston/permit/E1882601/) | | Jul 29, 2026 | [36 Maple St](https://nearbypermits.com/boston/address/36-maple-st/) | 840 ft N | Roofing | Remove all debris on left side flat roof and apply epdm rubber membrane in accordance to industry standard and state and local codes | $10,450 | [SF1873103](https://nearbypermits.com/boston/permit/SF1873103/) | | Jul 8, 2026 | [775 Truman Pw](https://nearbypermits.com/boston/address/775-truman-pw/) | 790 ft S | Roofing | Roof replacement - Remove existing layers, inspect decking & replace if needed. Install proper underlayment, install new shingles. | $11,225 | [SF1865083](https://nearbypermits.com/boston/permit/SF1865083/) | | Jul 2, 2026 | [34 Oak St](https://nearbypermits.com/boston/address/34-oak-st/) | 980 ft N | Alteration or repair | Partial removal of a non structural partition wall between the living room and bedroom | $15,000 | [SF1868330](https://nearbypermits.com/boston/permit/SF1868330/) | | Jun 17, 2026 | [4 Neponset Av](https://nearbypermits.com/boston/address/4-neponset-av/) | 720 ft S | Alteration or repair | I Peggy Hinds Watson declare my home occupancy at 4 Neponset Av is an existing two family. | Not listed | [ALT1842285](https://nearbypermits.com/boston/permit/ALT1842285/) | | Jun 8, 2026 | [40 Dana Av](https://nearbypermits.com/boston/address/40-dana-av/) | 560 ft W | Solar | Installation of roof mounted photovoltaic solar systems, 4.51 KW 11 panels NO BATTERY STORAGE | $24,600 | [SF1852760](https://nearbypermits.com/boston/permit/SF1852760/) | | May 26, 2026 | [40 Dana Av](https://nearbypermits.com/boston/address/40-dana-av/) | 560 ft W | Solar | Installation of roof mounted photovoltaic solar systems, 4.51 KW 11 panels NO BATTERY STORAGE | $24,600 | [E1852762](https://nearbypermits.com/boston/permit/E1852762/) | | Jun 8, 2026 | [672-674 Truman Pw](https://nearbypermits.com/boston/address/672--674-truman-pw/) | 900 ft E | Plumbing | Installing a prep sink at Cappy's pizza | $1,000 | [PL1858513](https://nearbypermits.com/boston/permit/PL1858513/) | | May 22, 2026 | [4 Neponset Av](https://nearbypermits.com/boston/address/4-neponset-av/) | 720 ft S | Alteration or repair | No inspections unit the occupancy is confirmed; ALT1842285 pending.Remove existing rotted 4x30 front porch and 3 steps only. Install new footings and pressure treated framing. Install new composite decking boards and steps. Install new vinyl guardrails and handrails. | $24,000 | [SF1851727](https://nearbypermits.com/boston/permit/SF1851727/) | | May 19, 2026 | [40 Dana Av](https://nearbypermits.com/boston/address/40-dana-av/) | 560 ft W | Plumbing | Replacement of gas water heater | $2,086 | [PL1850407](https://nearbypermits.com/boston/permit/PL1850407/) | | May 19, 2026 | [40 Dana Av](https://nearbypermits.com/boston/address/40-dana-av/) | 560 ft W | Plumbing | Replacement of gas water heater | $2,086 | [G1850406](https://nearbypermits.com/boston/permit/G1850406/) | ### Farther (1,000 ft to ¼ mi), 10 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 14, 2026 | [25 Pierce St](https://nearbypermits.com/boston/address/25-pierce-st/) | 0.23 mi NE | Alteration or repair | Residential weatherization and air sealing with the Mass Save Program. No structural changes. | $12,789 | [SF1888278](https://nearbypermits.com/boston/permit/SF1888278/) | | Aug 28, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 0.19 mi S | Solar | Installation of roof mounted photovoltaic solar systems, 8.61 kw 21 panels with installation of 2 franklin batteries installed on exterior of home | $103,200 | [SF1886935](https://nearbypermits.com/boston/permit/SF1886935/) | | Aug 28, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 0.19 mi S | Solar | Installation of roof mounted photovoltaic solar systems, 8.61 kw 21 panels with installation of 2 franklin batteries installed on exterior of home | $103,200 | [E1886942](https://nearbypermits.com/boston/permit/E1886942/) | | Aug 14, 2026 | [36r Williams Av](https://nearbypermits.com/boston/address/36r-williams-av/) | 0.24 mi SE | Plumbing | New Kichten, bathrom and laundry | $8,000 | [PL1887914](https://nearbypermits.com/boston/permit/PL1887914/) | | Jul 27, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 0.19 mi S | Electrical | Install SPAN panel and replace meter and service conductors | $9,600 | [E1877930](https://nearbypermits.com/boston/permit/E1877930/) | | Jul 21, 2026 | [17 Neponset Av](https://nearbypermits.com/boston/address/17-neponset-av/) | 0.19 mi S | Alteration or repair | Confirm occupancy of existing single-family dwelling. | Not listed | [ALT1861742](https://nearbypermits.com/boston/permit/ALT1861742/) | | Jun 27, 2026 | [26 Oak St](https://nearbypermits.com/boston/address/26-oak-st/) | 0.20 mi N | Plumbing | All new rough and finish plumbing in basement for 3 mop sinks, one lav, one toilet. First floor kitchen sink, toilet, and lav | $13,000 | [PL1865365](https://nearbypermits.com/boston/permit/PL1865365/) | | Jun 18, 2026 | [2-20 Fairmount Av](https://nearbypermits.com/boston/address/2--20-fairmount-av/) | 0.22 mi N | Alteration or repair | Adding takeout to existing restaurant. no work to be done. | Not listed | [ALT1706180](https://nearbypermits.com/boston/permit/ALT1706180/) | | May 11, 2026 | [26 Oak St](https://nearbypermits.com/boston/address/26-oak-st/) | 0.20 mi N | Plumbing | Replacement water heater | $1,000 | [PL1845924](https://nearbypermits.com/boston/permit/PL1845924/) | | May 11, 2026 | [26 Oak St](https://nearbypermits.com/boston/address/26-oak-st/) | 0.20 mi N | Plumbing | Replacement water heater only | $2,600 | [G1845917](https://nearbypermits.com/boston/permit/G1845917/) | ## More on this street Other addresses on Walnut St with permits, nearest house number first: - [12 Walnut St](https://nearbypermits.com/boston/address/12-walnut-st/): newest permit Mar 25, 2026 - [10 Walnut St](https://nearbypermits.com/boston/address/10-walnut-st/): newest permit Feb 4, 2026 - [9 Walnut St](https://nearbypermits.com/boston/address/9-walnut-st/): newest permit Oct 5, 2026 - [6 Walnut St](https://nearbypermits.com/boston/address/6-walnut-st/): newest permit Feb 25, 2026 - [5 Walnut St](https://nearbypermits.com/boston/address/5-walnut-st/): newest permit Oct 5, 2026 - [2 Walnut St](https://nearbypermits.com/boston/address/2-walnut-st/): newest permit Aug 4, 2025 - [1 Walnut St](https://nearbypermits.com/boston/address/1-walnut-st/): newest permit Apr 3, 2025 - [119 Walnut St](https://nearbypermits.com/boston/address/119-walnut-st/): newest permit Aug 4, 2025 - [122 Walnut St](https://nearbypermits.com/boston/address/122-walnut-st/): newest permit Aug 26, 2025 - [152 Walnut St](https://nearbypermits.com/boston/address/152-walnut-st/): newest permit Sep 10, 2026 --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-07 23:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 5 permits at this address and 27 nearby: https://nearbypermits.com/boston/address/51-walnut-st/