Contractor Profile
Siena Construction Corporation
Siena Construction Corporation concentrates in commercial alteration in Boston (95% of its 174 segment-eligible permits), with secondary activity across 2 other segments. Its permit record in Boston spans 2018–2026. Reliable permit valuations total ≈$179M (across the 100% of filings with a valuation we can stand behind). Filing activity is up 300% over the last 90 days versus the prior 90 — a market heating up.
First permit: Aug 9, 2018 (2,943d ago)Latest permit: Jul 16, 2026 (45d ago)
The sales record
- Market
- Boston
- Active
- 2018–2026 · 8 yrs
- Licenses on file
- 0
- Reliable value
- $179M
- Coverage
- 100%
- Reliable filings
- 173
- Rank in Boston
- #13
- Permits (all-time, all segments)
- 174
- Filings 90d
- 4
- Filings 30d
- 0
- Latest permit
- Jul 16, 2026
Typical project size$321Ktypically $151K–$815K across 173 valued permits
Where they work
Primarily Commercial Alteration — 95% of 174 segment-classified permits
Firmographics
License & registration IDs on fileNo license records in the source data.
Direct contactNot in our data — we don’t fabricate firmographics.
Monthly activity
Sep ’240–3 permits/moJul ’26
permits per month permit value
Service area
Typical service area ~1 mi around Cambridge
The p90 footprint of where Siena Construction Corporation has pulled permits in Boston — drawn from all 174 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Cambridge174
Recent permitsLargest recent$1.2M· 290 Binney St, Cambridge, MA 02142
Showing 20 of 174 permits by Siena Construction Corporation in the indexed window · most recent first
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- Jul 16, 2026Commercial Alteration75 Sidney St, Cambridge, MA 02139Alteration$131Kapplied Jul 10, 2026
- Jul 16, 2026Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$678Kapplied Jul 1, 2026
- Jun 25, 2026Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$558Kapplied Jun 1, 2026
- Jun 16, 2026Commercial Alteration290 Binney St, Cambridge, MA 02142Alteration$1.2Mapplied Jun 8, 2026
- May 26, 2026Commercial Alteration30 Acorn Park Dr, Cambridge, MA 02140Alteration$164Kapplied May 11, 2026
- Feb 9, 2026Commercial Alteration16 Divinity Ave, Cambridge, MA 02138Alteration$355Kapplied Jan 13, 2026
- Feb 4, 2026Commercial Alteration20 Sidney St, Cambridge, MA 02139Alteration$45Kapplied Dec 30, 2025
- Jan 23, 2026Commercial Demolition350 Massachusetts Ave, Cambridge, MA 02139Demolition · Commercial$4Kapplied Jan 21, 2026
- Dec 18, 2025Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$100Kapplied Oct 6, 2025
- Dec 17, 2025Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$200Kapplied Oct 6, 2025
- Nov 4, 2025Commercial Alteration16 Divinity Ave, Cambridge, MA 02138Alteration$57Kapplied Oct 17, 2025
- Oct 8, 2025Commercial Demolition1900 One Kendall Square Complex, Cambridge, MA 02141Demolition · Commercial$149Kapplied Sep 23, 2025
- Sep 29, 2025Commercial Alteration245 First St, Cambridge, MA 02142Alteration$240Kapplied Sep 19, 2025
- Sep 24, 2025Commercial Alteration16 Divinity Ave, Cambridge, MA 02138Alteration$48Kapplied Sep 23, 2025
- Sep 8, 2025Commercial Alteration314 Main St, Cambridge, MA 02142Alteration$59Kapplied Jul 28, 2025
- Aug 5, 2025Commercial Alteration38 Sidney St, Cambridge, MA 02139Alteration$606Kapplied Jul 28, 2025
- Jun 18, 2025Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$350Kapplied May 29, 2025
- Jun 18, 2025Commercial Alteration455 Main St, Cambridge, MA 02142Alteration$320Kapplied May 29, 2025
- Jun 10, 2025Commercial Alteration1 One Kendall Square Complex, Unit 400, 600, 700, Cambridge, MA 02142Alteration$108Kapplied Jun 3, 2025
- Mar 31, 2025Commercial Alteration35 Landsdowne St, Cambridge, MA 02139Alteration$52Kapplied Mar 12, 2025
Jul 16, 2026 applied Jul 10, 2026 | 75 Sidney St, Cambridge, MA 02139 | Commercial Alteration | $131K |
Jul 16, 2026 applied Jul 1, 2026 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $678K |
Jun 25, 2026 applied Jun 1, 2026 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $558K |
Jun 16, 2026 applied Jun 8, 2026 | 290 Binney St, Cambridge, MA 02142 | Commercial Alteration | $1.2M |
May 26, 2026 applied May 11, 2026 | 30 Acorn Park Dr, Cambridge, MA 02140 | Commercial Alteration | $164K |
Feb 9, 2026 applied Jan 13, 2026 | 16 Divinity Ave, Cambridge, MA 02138 | Commercial Alteration | $355K |
Feb 4, 2026 applied Dec 30, 2025 | 20 Sidney St, Cambridge, MA 02139 | Commercial Alteration | $45K |
Jan 23, 2026 applied Jan 21, 2026 | 350 Massachusetts Ave, Cambridge, MA 02139 | Commercial Demolition Commercial | $4K |
Dec 18, 2025 applied Oct 6, 2025 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $100K |
Dec 17, 2025 applied Oct 6, 2025 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $200K |
Nov 4, 2025 applied Oct 17, 2025 | 16 Divinity Ave, Cambridge, MA 02138 | Commercial Alteration | $57K |
Oct 8, 2025 applied Sep 23, 2025 | 1900 One Kendall Square Complex, Cambridge, MA 02141 | Commercial Demolition Commercial | $149K |
Sep 29, 2025 applied Sep 19, 2025 | 245 First St, Cambridge, MA 02142 | Commercial Alteration | $240K |
Sep 24, 2025 applied Sep 23, 2025 | 16 Divinity Ave, Cambridge, MA 02138 | Commercial Alteration | $48K |
Sep 8, 2025 applied Jul 28, 2025 | 314 Main St, Cambridge, MA 02142 | Commercial Alteration | $59K |
Aug 5, 2025 applied Jul 28, 2025 | 38 Sidney St, Cambridge, MA 02139 | Commercial Alteration | $606K |
Jun 18, 2025 applied May 29, 2025 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $350K |
Jun 18, 2025 applied May 29, 2025 | 455 Main St, Cambridge, MA 02142 | Commercial Alteration | $320K |
Jun 10, 2025 applied Jun 3, 2025 | 1 One Kendall Square Complex, Unit 400, 600, 700, Cambridge, MA 02142 | Commercial Alteration | $108K |
Mar 31, 2025 applied Mar 12, 2025 | 35 Landsdowne St, Cambridge, MA 02139 | Commercial Alteration | $52K |
Sites Siena Construction Corporation returns to6 in Boston
Addresses where Siena Construction Corporation has pulled repeat permits and the site itself has a deep permit history (25+ permits, all contractors). Each links to that parcel’s full record.
Other top Commercial Alteration contractors in Boston
- Wise Construction192 commercial alteration
- The Richmond Group84 commercial alteration
- Pidc Construction69 commercial alteration
- Gloucester Builders68 commercial alteration
- Berkeley Building Company67 commercial alteration
- Columbia Construction Company62 commercial alteration
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