Alteration (Moderate) · DOB Job #121872811
501 Madison Avenue, Manhattan
Modification To Existing Hvac System And Plumbing Fixtures As Per Plans Filed Herewith.
- Borough
- Manhattan
- Neighborhood
- Midtown-Times Square
- Job Number
- 121872811
- Filing Type
- Alteration (Moderate)
- Status
- Signed Off
- Stories Proposed
- —
- Height Proposed
- —
- Dwelling Units Proposed
- —
- Estimated Cost
- $83K
- Last DOB Action
- Sep 29, 2026
- BBL (Borough-Block-Lot)
- 1012880021
- Owner / Applicant
- Colliers Tri-state Management Ll
- Architect / Engineer of Record
- Thomas Fiskaa (Professional Engineer)
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Permits & Contractors on File
- Michilli IncEW permit
- A Plus Plumbing CorpPL permit
Live from DOB Permit Issuance, cross-referenced by this job number — the business actually pulling the permit, not necessarily the filing applicant above.
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Source: NYC Department of Buildings, Job Application Filings.