Contractor Profile
Cornerstone Design/build Services
Cornerstone Design/build Services concentrates in commercial alteration in Boston (95% of its 20 segment-eligible permits), with secondary activity across 1 other segment. Its permit record in Boston spans 2018–2026. Reliable permit valuations total ≈$9.2M (across the 95% of filings with a valuation we can stand behind).
First permit: Oct 3, 2018 (2,890d ago)Latest permit: Jan 23, 2026 (221d ago)
The sales record
- Market
- Boston
- Active
- 2018–2026 · 8 yrs
- Licence IDs on their permits
- —
- Reliable value
- $9.2M
- Coverage
- 95%
- Reliable filings
- 19
- Rank in Boston
- #303
- Permits (all-time, all segments)
- 20
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- Jan 23, 2026
Typical project size$250Ktypically $110K–$742K across 19 valued permits
Where they work
Primarily Commercial Alteration — 95% of 20 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
Jan ’250–1 permits/moJan ’26
permits per month permit value
Service area
Typical service area ~2 mi around Cambridge
The p90 footprint of where Cornerstone Design/build Services has pulled permits in Boston — drawn from all 20 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Cambridge20
Recent permitsLargest recent$1.8M· 319 Main St, Cambridge, MA 02142
Showing 20 of 20 permits by Cornerstone Design/build Services in the indexed window · most recent first
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- Jan 23, 2026Commercial Alteration319 Main St, Cambridge, MA 02142Alteration$1.8Mapplied Nov 12, 2025
- Aug 15, 2025Commercial Alteration355 Main St, Cambridge, MA 02142Alteration$750Kapplied Feb 13, 2025
- Jul 23, 2025Commercial Alteration355 Main St, Cambridge, MA 02142Alteration$37Kapplied May 6, 2025
- Jan 15, 2025Commercial Alteration1288 Massachusetts Ave, Cambridge, MA 02138Alteration$75Kapplied Dec 23, 2024
- Jul 29, 2024Commercial Alteration1288 Massachusetts Ave, Cambridge, MA 02138Alteration$250Kapplied May 22, 2024
- Jan 29, 2024Commercial Alteration318 Third St, Cambridge, MA 02142Alteration$110Kapplied Jan 24, 2024
- Dec 22, 2022Commercial Alteration22 Brattle St, Cambridge, MA 02138Alteration$734Kapplied Sep 29, 2022
- Dec 16, 2022Commercial Alteration318 Third St, Cambridge, MA 02142Alteration$110Kapplied Dec 2, 2022
- Jun 13, 2022Commercial Alteration5 White St, Cambridge, MA 02140Alteration$140Kapplied Apr 25, 2022
- Jun 10, 2022Commercial Alteration1 Jfk St, Cambridge, MA 02138Alteration$352Kapplied Mar 9, 2022
- Jan 13, 2022Commercial Alteration415 Main St, Cambridge, MA 02142Alteration$882Kapplied Nov 5, 2021
- Nov 15, 2021Commercial Alteration415 Main St, Cambridge, MA 02142Alteration$57Kapplied Nov 3, 2021
- Aug 16, 2021Commercial Alteration22 Jfk St, Cambridge, MA 02138Alteration$1.5Mapplied May 25, 2021
- Jan 20, 2021Commercial Alteration96 Winthrop St, Cambridge, MA 02138Alteration$871Kapplied Apr 1, 2020
- Sep 3, 2020Commercial Demolition145 Broadway, Cambridge, MA 02142Demolition · Commercial$614Kapplied Nov 8, 2019
- Mar 13, 2020Commercial Alteration765 Massachusetts Ave, Cambridge, MA 02139Alteration$205Kapplied Feb 24, 2020
- Mar 11, 2020Commercial Alteration1 Brattle Sq, Cambridge, MA 02138Alteration$491Kapplied Dec 27, 2019
- Oct 16, 2019Commercial Alteration1 Brattle Sq, Cambridge, MA 02138Alteration$39Kapplied Sep 25, 2019
- Mar 7, 2019Commercial Alteration100 Cambridgeside Pl, Cambridge, MA 02141Alteration$250Kapplied Jan 25, 2019
- Oct 3, 2018Commercial Alteration3 Brattle St, Cambridge, MA 02138Alteration—applied Sep 13, 2018
Jan 23, 2026 applied Nov 12, 2025 | 319 Main St, Cambridge, MA 02142 | Commercial Alteration | $1.8M |
Aug 15, 2025 applied Feb 13, 2025 | 355 Main St, Cambridge, MA 02142 | Commercial Alteration | $750K |
Jul 23, 2025 applied May 6, 2025 | 355 Main St, Cambridge, MA 02142 | Commercial Alteration | $37K |
Jan 15, 2025 applied Dec 23, 2024 | 1288 Massachusetts Ave, Cambridge, MA 02138 | Commercial Alteration | $75K |
Jul 29, 2024 applied May 22, 2024 | 1288 Massachusetts Ave, Cambridge, MA 02138 | Commercial Alteration | $250K |
Jan 29, 2024 applied Jan 24, 2024 | 318 Third St, Cambridge, MA 02142 | Commercial Alteration | $110K |
Dec 22, 2022 applied Sep 29, 2022 | 22 Brattle St, Cambridge, MA 02138 | Commercial Alteration | $734K |
Dec 16, 2022 applied Dec 2, 2022 | 318 Third St, Cambridge, MA 02142 | Commercial Alteration | $110K |
Jun 13, 2022 applied Apr 25, 2022 | 5 White St, Cambridge, MA 02140 | Commercial Alteration | $140K |
Jun 10, 2022 applied Mar 9, 2022 | 1 Jfk St, Cambridge, MA 02138 | Commercial Alteration | $352K |
Jan 13, 2022 applied Nov 5, 2021 | 415 Main St, Cambridge, MA 02142 | Commercial Alteration | $882K |
Nov 15, 2021 applied Nov 3, 2021 | 415 Main St, Cambridge, MA 02142 | Commercial Alteration | $57K |
Aug 16, 2021 applied May 25, 2021 | 22 Jfk St, Cambridge, MA 02138 | Commercial Alteration | $1.5M |
Jan 20, 2021 applied Apr 1, 2020 | 96 Winthrop St, Cambridge, MA 02138 | Commercial Alteration | $871K |
Sep 3, 2020 applied Nov 8, 2019 | 145 Broadway, Cambridge, MA 02142 | Commercial Demolition Commercial | $614K |
Mar 13, 2020 applied Feb 24, 2020 | 765 Massachusetts Ave, Cambridge, MA 02139 | Commercial Alteration | $205K |
Mar 11, 2020 applied Dec 27, 2019 | 1 Brattle Sq, Cambridge, MA 02138 | Commercial Alteration | $491K |
Oct 16, 2019 applied Sep 25, 2019 | 1 Brattle Sq, Cambridge, MA 02138 | Commercial Alteration | $39K |
Mar 7, 2019 applied Jan 25, 2019 | 100 Cambridgeside Pl, Cambridge, MA 02141 | Commercial Alteration | $250K |
Oct 3, 2018 applied Sep 13, 2018 | 3 Brattle St, Cambridge, MA 02138 | Commercial Alteration | — |
Other top Commercial Alteration contractors in Boston
- Wise Construction192 commercial alteration
- Siena Construction Corporation166 commercial alteration
- The Richmond Group84 commercial alteration
- Pidc Construction69 commercial alteration
- Gloucester Builders68 commercial alteration
- Berkeley Building Company67 commercial alteration
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