Walsh Brothers
Walsh Brothers is a specialist commercial alteration contractor in Boston — all 14 of its segment-eligible permits fall in commercial alteration. Its permit record in Boston spans 2019–2026. Reliable permit valuations total ≈$32.9M (across the 100% of filings with a valuation we can stand behind). Filing activity is steady over the last 90 days versus the prior 90.
- Territory
- Boston
- Active
- 2019–2026 · 7 yrs
- Licenses on file
- 0
- Canonical ID
- 416,145
- Reliable value
- $32.9M
- Coverage
- 100%
- Reliable filings
- 14
- Rank in Boston
- #101
- Permits (all-time)
- 15
- Filings 90d
- 1
- Filings 30d
- 0
- Latest permit
- May 4, 2026
Primarily Commercial Alteration — 100% of 14 segment-classified permits
Typical service area ~2 mi around Somerville
The p90 footprint of where Walsh Brothers has pulled permits in Boston — based on 15 geocoded permits (100% of their indexed set). It reflects detected permit activity, not a guaranteed service-area claim.
- Somerville15
Showing 14 of 14 permits by Walsh Brothers · most recent first
May 4, 2026 applied Apr 8, 2026 | 399 REVOLUTION DR, SOMERVILLE MASSACHUSETTS 02145 | Commercial Alteration | $3.1M |
Mar 12, 2026 applied Feb 10, 2026 | 399 REVOLUTION DR, SOMERVILLE MASSACHUSETTS 02145 | Commercial Alteration | $1.1M |
Nov 19, 2025 applied Oct 16, 2025 | 399 REVOLUTION DR, SOMERVILLE MASSACHUSETTS 02145 | Commercial Alteration | $400K |
Aug 6, 2024 applied Jun 17, 2024 | 399 REVOLUTION DR, SOMERVILLE MASSACHUSETTS 02145 | Commercial Alteration | $1.5M |
Aug 30, 2021 applied Aug 12, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $50K |
Jul 28, 2021 applied Jun 14, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $18.4M |
Jun 7, 2021 applied May 25, 2021 | 325 REVOLUTION DR, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $65K |
Apr 13, 2021 applied Mar 10, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $2.0M |
Apr 12, 2021 applied Mar 22, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS 02143 | Commercial Alteration | $400K |
Mar 18, 2021 applied Feb 16, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS 02143 | Commercial Alteration | $4.7M |
Feb 11, 2021 applied Jan 19, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS 02143 | Commercial Alteration | $150K |
Sep 11, 2019 applied Aug 23, 2019 | 399 REVOLUTION DR, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $50K |
— applied May 24, 2021 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS 02143 | Commercial Alteration | $928K |
— applied Oct 25, 2022 | 236 HIGHLAND AVE, SOMERVILLE MASSACHUSETTS | Commercial Alteration | $450 |
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