Sidwell Development LLC
Sidwell Development LLC is a diversified New York City contractor — 97 segment-eligible permits spanning 5 segments, led by multifamily alteration (51%) and commercial alteration (26%). Its permit record in New York City spans 2012–2026. Reliable permit valuations total ≈$14.3M (across the 48% of filings with a valuation we can stand behind).
- Market
- New York City
- Active
- 2012–2026 · 14 yrs
- Licenses on file
- 3
- Reliable value
- $14.3M
- Coverage
- 48%
- Reliable filings
- 39
- Rank in New York City
- #5,132
- Permits (all-time, all segments)
- 160
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- Feb 20, 2026
- 0607943
- 607943
- 999991
As named in the permit records — identifiers we surface, not verified state licensure.
Typical service area ~5 mi in New York City
The p90 footprint of where Sidwell Development LLC has pulled permits in New York City — drawn from all 160 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- NYC160
Showing 20 of 97 permits by Sidwell Development LLC in the indexed window · most recent first
Feb 20, 2026 | 315 New York Avenue, Brooklyn, NY 11213 | Multifamily Alteration | $13K |
Feb 6, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $720K |
Feb 5, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $78K |
Feb 5, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $78K |
Jan 28, 2026 | 100 Henry Street, Brooklyn, NY 11201 | Commercial HVAC | — |
Jan 23, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $480K |
Jan 15, 2026 | 580 Flatbush Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $35K |
Jan 15, 2026 | 580 Flatbush Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $35K |
Jan 15, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $161K |
Jan 15, 2026 | 1700 Bedford Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $85K |
Jan 15, 2026 | 1700 Bedford Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $85K |
Jan 15, 2026 | 590 Flatbush Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $35K |
Jan 15, 2026 | 590 Flatbush Avenue, Brooklyn, NY 11225 | Multifamily Alteration | $35K |
Jan 15, 2026 | 625 West 113 Street, Manhattan, NY 10025 | Multifamily Alteration | $250K |
Jan 14, 2026 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $720K |
Dec 4, 2025 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $480K |
Dec 4, 2025 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $161K |
Sep 16, 2025 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $78K |
Sep 16, 2025 | 22 Cortlandt Street, Manhattan, NY 10007 | Commercial Alteration | $78K |
Sep 3, 2025 | 625 West 113 Street, Manhattan, NY 10025 | Multifamily Alteration | $250K |
Addresses where Sidwell Development LLC 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.
- Orbit Plbg & Htg INC4,742 multifamily alteration
- The Plumbing Company INC3,247 multifamily alteration
- G. Bauer, INC3,147 multifamily alteration
- Abilene, INC3,136 multifamily alteration
- C C Controlled Combustion2,591 multifamily alteration
- Squan Construction Servic2,432 multifamily alteration
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