21 West 46th Street
21 WEST 46 STREET, New York, NY, USA in Midtown West, Manhattan is a property zoned C6-4.5. The building spans built in 1929, 75,008 gross square feet, 15 floors, 5 units. It last traded for $43M in January 2025, and is held by MARTZ HOLDINGS DE LLC. Below, Crezly Research breaks down the building's ownership, debt profile, and recent nearby sales from New York City public records.
The building
| Address | 21 WEST 46 STREET, New York, NY, USA |
| BBL (Borough-Block-Lot) | 1-1262-24 |
| Zoning district | C6-4.5 |
| Year built | 1929 |
| Gross floor area | 75,008 sq ft |
| Lot area | 6,719 sq ft |
| Total units | 5 |
| Floors | 15 |
| Built FAR | 11.16 |
| Assessed value (total) | $9.2M |
Who owns it
MARTZ HOLDINGS DE LLC
Last recorded sale $43M (Jan 2025) · Estimated outstanding debt $27.95M
Owner contact & lender details
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Unlock owner contacts →Recent nearby sales
Recorded deeds on and around this block (ACRIS).
| Address | Recorded | Price |
|---|---|---|
| 25 WEST 45TH STREET | 2026-04-29 | $46.95M |
| 10 WEST 46 STREET | 2026-04-07 | $2.25M |
| 50 WEST 47TH STREET | 2026-03-02 | $610,000 |
| 18 WEST 48TH STREET | 2026-02-23 | $1.05M |
| 59 WEST 46 STREET | 2026-01-22 | $52.96M |
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Compiled by Crezly Research from New York City public records (ACRIS, PLUTO, DOB/HPD).
Figures are estimates from public data and may not reflect the most recent transactions. Not legal, financial or investment advice.