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
- Licence IDs on their permits
- 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, 2026Multifamily Alteration315 New York Avenue, Brooklyn, NY 11213Alteration$13K
- Feb 6, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$720K
- Feb 5, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$78K
- Feb 5, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$78K
- Jan 28, 2026Commercial HVAC100 Henry Street, Brooklyn, NY 11201HVAC / Mechanical—
- Jan 23, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$480K
- Jan 15, 2026Multifamily Alteration580 Flatbush Avenue, Brooklyn, NY 11225Alteration$35K
- Jan 15, 2026Multifamily Alteration580 Flatbush Avenue, Brooklyn, NY 11225Alteration$35K
- Jan 15, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$161K
- Jan 15, 2026Multifamily Alteration1700 Bedford Avenue, Brooklyn, NY 11225Alteration$85K
- Jan 15, 2026Multifamily Alteration1700 Bedford Avenue, Brooklyn, NY 11225Alteration$85K
- Jan 15, 2026Multifamily Alteration590 Flatbush Avenue, Brooklyn, NY 11225Alteration$35K
- Jan 15, 2026Multifamily Alteration590 Flatbush Avenue, Brooklyn, NY 11225Alteration$35K
- Jan 15, 2026Multifamily Alteration625 West 113 Street, Manhattan, NY 10025Alteration$250K
- Jan 14, 2026Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$720K
- Dec 4, 2025Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$480K
- Dec 4, 2025Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$161K
- Sep 16, 2025Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$78K
- Sep 16, 2025Commercial Alteration22 Cortlandt Street, Manhattan, NY 10007Alteration$78K
- Sep 3, 2025Multifamily Alteration625 West 113 Street, Manhattan, NY 10025Alteration$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 INC4,761 multifamily alteration
- The Plumbing Company INC3,247 multifamily alteration
- G. Bauer, INC3,148 multifamily alteration
- Abilene, INC3,137 multifamily alteration
- C C Controlled Combustion2,605 multifamily alteration
- P.S.I. Mechanical2,437 multifamily alteration
Put Sidwell Development LLC on your call list.
Watch this contractor above for a daily email when they pull a new permit — or open the whole New York City book: every ranked contractor, enriched and parcel-joined.