434 West 20 Street, Manhattan 10011

This property may be subject to NYC’s non-primary residence (pied-à-terre) surcharge.

Photo of 434 West 20 Street
© Mapillary contributors
Market value (FY27)
$7,019,000
Estimated annual surcharge
If non-primary, est. $456,235/yr · 6.5% tier (Class 2, over $5M)
Owner of record
434 Owners Corp
Borough
Manhattan
Block / Lot
717 / 61
BBL (PARID)
1007170061
Tax class
2C
Building class
C6
Co-op account
100700

Estimate = phase-1 rate × FY27 DOF market value. Co-op unit values are imputed by DOF at determination; see methodology.

Ownership records

Last deed recorded January 27, 1983. Flamborough N.V. → 434 Owners CORP.

  • Buyer 434 Owners CORP.
    00000
  • Seller Flamborough N.V.
    00000

City housing registration (HPD)

  • Agent CO-OP Ernest Biscardi · 434 Owners CORP
    434 W 20 St 1, NY, NY 10011
  • Corporate Owner CO-OP 434 Owners CORP
    434 West 20th Street 1, New York, NY 10011
  • Head Officer CO-OP Ernest Biscardi
    434 West 20th Street 1, New York, NY 10011
  • Lessee CO-OP Ernest Biscardi · 434 Owners CORP
    434 W 20 St 1, NY, NY 10011
  • Officer CO-OP Ernest Biscardi
    434 W 20 St 1, NY, NY 10011
  • Site Manager CO-OP Adaias Fuentez

Public ACRIS deed records and HPD registration data. LLC officers are not published by New York State; parties and addresses shown are as recorded.

Historic photos

  • 1940s tax photo of 434 West 20 Street, NYC

    1939–41 tax photo · © City of New York, NYC Municipal Archives · via 1940s.nyc

  • 1980s tax photo of 434 West 20 Street, NYC

    1980s tax photo · © City of New York, NYC Municipal Archives · via 1940s.nyc

NYC Municipal Archives tax photographs — view on 1940s.nyc (opens in new tab). Images © City of New York; bulk/commercial reuse requires Archives permission.