Cornerstone Structures Ll
Name shown as recorded. This name is cut off at 25 characters by the New York City source. The full name is not published in any NYC dataset, so we show exactly what the record contains.
Cornerstone Structures Ll is a diversified New York City contractor — 51 segment-eligible permits spanning 5 segments, led by multifamily alteration (51%) and temporary construction support (29%). Its permit record in New York City spans 2016–2025.
- Market
- New York City
- Active
- 2016–2025 · 9 yrs
- Licence IDs on their permits
- 2
- Reliable value
- —
- Coverage
- —
- Reliable filings
- —
- Rank in New York City
- #8,410
- Permits (all-time, all segments)
- 87
- Filings 90d
- 0
- Filings 30d
- 0
- Latest permit
- May 16, 2025
- 0616128
- 616128
As named in the permit records — identifiers we surface, not verified state licensure.
Cornerstone Structures Ll has 87 permits, but too few carry a value we can stand behind — so we publish — for reliable value, never a guess. They still rank by volume; the dollar figure stays honest.
Monthly value isn’t shown: too few of Cornerstone Structures Ll’s permits carry a reliable valuation, so we publish the count trend only rather than a value line built from gaps.
Typical service area ~6 mi in New York City
The p90 footprint of where Cornerstone Structures Ll has pulled permits in New York City — drawn from all 87 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- NYC87
Showing 20 of 51 permits by Cornerstone Structures Ll in the indexed window · most recent first
- May 16, 2025Multifamily Alteration429 Kent Avenue, Brooklyn, NY 11249Alteration$101K
- Mar 8, 2024Commercial Alteration345 Butler Street, Brooklyn, NY 11217Alteration$112K
- Sep 8, 2023Commercial Alteration3225 Broadway, Manhattan, NY 10027Alteration$106K
- Sep 8, 2023Commercial Alteration3225 Broadway, Manhattan, NY 10027Alteration$7K
- Jul 31, 2023Residential MEP267 Putnam Avenue, Brooklyn, NY 11216HVAC / Mechanical · Residential$31K
- Jul 22, 2022Temporary Construction Support443 West 54 Street, Manhattan, NY 10019Construction Fence$1 ⚠
- Jul 15, 2022Temporary Construction Support443 West 54 Street, Manhattan, NY 10019Construction Fence$1 ⚠
- Jul 13, 2022Multifamily Alteration1370 Dean Street, Brooklyn, NY 11216Alteration · Residential—
- Jun 6, 2022Multifamily Alteration349 West 19th Street, Manhattan, NY 10011Alteration · Residential—applied May 25, 2022
- Dec 3, 2021Multifamily Alteration1370 Dean Street, Brooklyn, NY 11216Foundation Only · Residential—
- Dec 3, 2021Multifamily Alteration1370 Dean Street, Brooklyn, NY 11216Foundation Only · Residential—
- Dec 3, 2021Multifamily Alteration1370 Dean Street, Brooklyn, NY 11216Alteration · Residential—
- Dec 3, 2021Temporary Construction Support1370 Dean Street, Brooklyn, NY 11216Construction Equipment · Residential—
- Oct 18, 2021Temporary Construction Support443 West 54 Street, Manhattan, NY 10019Construction Fence$1 ⚠
- Dec 31, 2020Multifamily Alteration443 West 54th Street, Manhattan, NY 10019Foundation Only · Residential—
- Dec 31, 2020Multifamily Alteration443 West 54th Street, Manhattan, NY 10019Foundation Only · Residential—
- Oct 6, 2020Temporary Construction Support443 West 54 Street, Manhattan, NY 10019Construction Fence$1 ⚠
- Jul 27, 2020Multifamily Alteration443 West 54th Street, Manhattan, NY 10019Foundation Only · Residential—
- Jul 27, 2020Multifamily Alteration443 West 54th Street, Manhattan, NY 10019Foundation Only · Residential—
- Dec 21, 2019Commercial Alteration444 West 55 Street, Manhattan, NY 10019Alteration$114K
May 16, 2025 | 429 Kent Avenue, Brooklyn, NY 11249 | Multifamily Alteration | $101K |
Mar 8, 2024 | 345 Butler Street, Brooklyn, NY 11217 | Commercial Alteration | $112K |
Sep 8, 2023 | 3225 Broadway, Manhattan, NY 10027 | Commercial Alteration | $106K |
Sep 8, 2023 | 3225 Broadway, Manhattan, NY 10027 | Commercial Alteration | $7K |
Jul 31, 2023 | 267 Putnam Avenue, Brooklyn, NY 11216 | Residential MEP Residential | $31K |
Jul 22, 2022 | 443 West 54 Street, Manhattan, NY 10019 | Temporary Construction Support | $1 ⚠ |
Jul 15, 2022 | 443 West 54 Street, Manhattan, NY 10019 | Temporary Construction Support | $1 ⚠ |
Jul 13, 2022 | 1370 Dean Street, Brooklyn, NY 11216 | Multifamily Alteration Residential | — |
Jun 6, 2022 applied May 25, 2022 | 349 West 19th Street, Manhattan, NY 10011 | Multifamily Alteration Residential | — |
Dec 3, 2021 | 1370 Dean Street, Brooklyn, NY 11216 | Multifamily Alteration Residential | — |
Dec 3, 2021 | 1370 Dean Street, Brooklyn, NY 11216 | Multifamily Alteration Residential | — |
Dec 3, 2021 | 1370 Dean Street, Brooklyn, NY 11216 | Multifamily Alteration Residential | — |
Dec 3, 2021 | 1370 Dean Street, Brooklyn, NY 11216 | Temporary Construction Support Residential | — |
Oct 18, 2021 | 443 West 54 Street, Manhattan, NY 10019 | Temporary Construction Support | $1 ⚠ |
Dec 31, 2020 | 443 West 54th Street, Manhattan, NY 10019 | Multifamily Alteration Residential | — |
Dec 31, 2020 | 443 West 54th Street, Manhattan, NY 10019 | Multifamily Alteration Residential | — |
Oct 6, 2020 | 443 West 54 Street, Manhattan, NY 10019 | Temporary Construction Support | $1 ⚠ |
Jul 27, 2020 | 443 West 54th Street, Manhattan, NY 10019 | Multifamily Alteration Residential | — |
Jul 27, 2020 | 443 West 54th Street, Manhattan, NY 10019 | Multifamily Alteration Residential | — |
Dec 21, 2019 | 444 West 55 Street, Manhattan, NY 10019 | Commercial Alteration | $114K |
Addresses where Cornerstone Structures Ll 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 INC4,768 multifamily alteration
- The Plumbing Company INC3,247 multifamily alteration
- G. Bauer, INC3,152 multifamily alteration
- Abilene, INC3,137 multifamily alteration
- C C Controlled Combustion2,606 multifamily alteration
- P.S.I. Mechanical2,442 multifamily alteration
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