50 Sidney Place, Brooklyn 11201

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

Photo of 50 Sidney Place
© Mapillary contributors
Market value (FY27)
$7,230,000
Estimated annual surcharge
If non-primary, est. $57,840/yr · 0.8% tier (Class 1, $5M–$15M)
Owner of record
Gary A. Alexion, Trustee
Borough
Brooklyn
Block / Lot
263 / 61
BBL (PARID)
3002630061
Tax class
1
Building class
B3

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 March 11, 2025. Healy, Maureen C; Alexion, Gary A → Gary A. Alexion, Trustee; Maureen C. Healy, Trustee; The Maureen C. Healy Revocable Trust, 50%; The Gary A. Alexion Revocable Trust, 50%

  • Buyer Gary A. Alexion, Trustee
    50 Sidney Place, Brooklyn, NY 11201
  • Seller Healy, Maureen C
    50 Sidney Place, Brooklyn, NY 11201
  • Seller Alexion, Gary A
    50 Sidney Place, Brooklyn, NY 11201
  • Buyer Maureen C. Healy, Trustee
    50 Sidney Place, Brooklyn, NY 11201
  • Buyer The Maureen C. Healy Revocable Trust, 50%
    50 Sidney Place, Brooklyn, NY 11201
  • Buyer The Gary A. Alexion Revocable Trust, 50%
    50 Sidney Place, Brooklyn, NY 11201

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 50 Sidney Place, NYC

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

  • 1980s tax photo of 50 Sidney Place, 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.