Contractor Profile
Cornerstone Construction
Cornerstone Construction concentrates in residential alteration in Boston (88% of its 33 segment-eligible permits), with secondary activity across 2 other segments. Its permit record in Boston spans 2014–2026. Reliable permit valuations total ≈$1.9M (across the 100% of filings with a valuation we can stand behind).
First permit: Jun 11, 2014 (4,487d ago)Latest permit: May 12, 2026 (134d ago)
The sales record
- Market
- Boston
- Active
- 2014–2026 · 12 yrs
- Licence IDs on their permits
- —
- Reliable value
- $1.9M
- Coverage
- 100%
- Reliable filings
- 33
- Rank in Boston
- #159
- Permits (all-time, all segments)
- 33
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- May 12, 2026
Typical project size$20Ktypically $11K–$45K across 33 valued permits
Where they work
Primarily Residential Alteration — 88% of 33 segment-classified permits
Firmographics
License & registration IDs on fileNot in our data — we don’t hold licensing-board registries, and this city’s permit records carry no licence number. This is a gap in our coverage, not a statement about this firm’s licensure.
Direct contactNot in our data — we don’t fabricate firmographics.
Monthly activity
May ’260–1 permits/moMay ’26
permits per month permit value
Service area
Typical service area ~1 mi around Somerville
The p90 footprint of where Cornerstone Construction has pulled permits in Boston — drawn from all 33 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Somerville33
Showing 20 of 33 permits by Cornerstone Construction in the indexed window · most recent first
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- May 12, 2026Commercial Alteration730 Broadway, Somerville MassachusettsAlteration$334Kapplied Mar 24, 2026
- Aug 28, 2024Residential Alteration233 Cedar St, Somerville Massachusetts 02145Alteration$68Kapplied Jul 25, 2024
- Apr 10, 2024Residential Alteration36 Trull St, Somerville Massachusetts 02145Alteration$11Kapplied Mar 22, 2024
- Feb 13, 2024Residential Alteration272 Willow Ave, Somerville Massachusetts 02144Alteration$45Kapplied Feb 2, 2024
- Jan 8, 2024Residential Alteration238 Willow Ave, Somerville Massachusetts 02144Alteration$15Kapplied Dec 11, 2023
- Sep 15, 2023Residential Alteration238 Willow Ave, Somerville Massachusetts 02144Alteration$47Kapplied Aug 19, 2023
- Jan 23, 2023Residential Alteration739 Broadway, Somerville Massachusetts 02144Alteration$5Kapplied Sep 7, 2022
- Nov 8, 2022Residential Demolition234 Willow Ave, Somerville Massachusetts 02144Demolition · Residential$3Kapplied Apr 21, 2022
- Jan 6, 2022Residential Alteration234 Willow Ave, Somerville Massachusetts 02144Alteration$280Kapplied Nov 24, 2021
- Feb 9, 2021Residential Alteration26 Lowden Ave, Somerville Massachusetts 02144Alteration$13Kapplied Sep 21, 2020
- Oct 6, 2020Residential Alteration175 Albion St, Somerville Massachusetts 02144Alteration$3Kapplied May 30, 2020
- Feb 7, 2020Residential Alteration37 Willow Ave, Somerville Massachusetts 02144Alteration$455Kapplied Jan 29, 2020
- Jul 24, 2019Residential Alteration18 Lowden Ave, Somerville Massachusetts 02144Alteration$19Kapplied Jul 21, 2019
- Jun 3, 2019Residential Alteration106 Summer St, Somerville Massachusetts 02143Alteration$158Kapplied May 15, 2019
- Apr 23, 2019Commercial Alteration720 Broadway, Somerville MassachusettsAlteration$3Kapplied Apr 12, 2019
- Oct 9, 2018Residential Alteration22 Lowden Ave, Somerville Massachusetts 02144Alteration$10Kapplied Oct 2, 2018
- Aug 2, 2018Residential Alteration783 Broadway, Somerville Massachusetts 02144Alteration$15Kapplied Jul 10, 2018
- Jun 26, 2018Residential Alteration37 Lowden Ave, Somerville Massachusetts 02144Alteration$14Kapplied Jun 18, 2018
- Apr 19, 2018Residential Alteration722 Broadway, Somerville Massachusetts 02144Alteration$11Kapplied Apr 16, 2018
- Oct 27, 2017Residential Alteration739 Broadway, Somerville Massachusetts 02144Alteration$5Kapplied Oct 11, 2017
May 12, 2026 applied Mar 24, 2026 | 730 Broadway, Somerville Massachusetts | Commercial Alteration | $334K |
Aug 28, 2024 applied Jul 25, 2024 | 233 Cedar St, Somerville Massachusetts 02145 | Residential Alteration | $68K |
Apr 10, 2024 applied Mar 22, 2024 | 36 Trull St, Somerville Massachusetts 02145 | Residential Alteration | $11K |
Feb 13, 2024 applied Feb 2, 2024 | 272 Willow Ave, Somerville Massachusetts 02144 | Residential Alteration | $45K |
Jan 8, 2024 applied Dec 11, 2023 | 238 Willow Ave, Somerville Massachusetts 02144 | Residential Alteration | $15K |
Sep 15, 2023 applied Aug 19, 2023 | 238 Willow Ave, Somerville Massachusetts 02144 | Residential Alteration | $47K |
Jan 23, 2023 applied Sep 7, 2022 | 739 Broadway, Somerville Massachusetts 02144 | Residential Alteration | $5K |
Nov 8, 2022 applied Apr 21, 2022 | 234 Willow Ave, Somerville Massachusetts 02144 | Residential Demolition Residential | $3K |
Jan 6, 2022 applied Nov 24, 2021 | 234 Willow Ave, Somerville Massachusetts 02144 | Residential Alteration | $280K |
Feb 9, 2021 applied Sep 21, 2020 | 26 Lowden Ave, Somerville Massachusetts 02144 | Residential Alteration | $13K |
Oct 6, 2020 applied May 30, 2020 | 175 Albion St, Somerville Massachusetts 02144 | Residential Alteration | $3K |
Feb 7, 2020 applied Jan 29, 2020 | 37 Willow Ave, Somerville Massachusetts 02144 | Residential Alteration | $455K |
Jul 24, 2019 applied Jul 21, 2019 | 18 Lowden Ave, Somerville Massachusetts 02144 | Residential Alteration | $19K |
Jun 3, 2019 applied May 15, 2019 | 106 Summer St, Somerville Massachusetts 02143 | Residential Alteration | $158K |
Apr 23, 2019 applied Apr 12, 2019 | 720 Broadway, Somerville Massachusetts | Commercial Alteration | $3K |
Oct 9, 2018 applied Oct 2, 2018 | 22 Lowden Ave, Somerville Massachusetts 02144 | Residential Alteration | $10K |
Aug 2, 2018 applied Jul 10, 2018 | 783 Broadway, Somerville Massachusetts 02144 | Residential Alteration | $15K |
Jun 26, 2018 applied Jun 18, 2018 | 37 Lowden Ave, Somerville Massachusetts 02144 | Residential Alteration | $14K |
Apr 19, 2018 applied Apr 16, 2018 | 722 Broadway, Somerville Massachusetts 02144 | Residential Alteration | $11K |
Oct 27, 2017 applied Oct 11, 2017 | 739 Broadway, Somerville Massachusetts 02144 | Residential Alteration | $5K |
Other top Residential Alteration contractors in Boston
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- The Home Depot223 residential alteration
- Renewal By Andersen193 residential alteration
- Renewal By Andersen191 residential alteration
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