15 Union Square West, 6, Manhattan 10003

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

Photo of 15 Union Square West, 6
USDA NAIP aerial imagery (public domain), via Microsoft Planetary Computer
Market value (FY27)
$1,020,252
Estimated annual surcharge
If non-primary, est. $40,810/yr · 4.0% tier (Class 2, $1M–$3M)
Owner of record
15 Union Square 3D Llc
Borough
Manhattan
Block / Lot
842 / 1111
BBL (PARID)
1008421111
Tax class
2
Building class
R4
Apartment
6
Condo number
102035

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 October 20, 2017 for $4,450,000. Mattson, Bryan → 15 Union Square 3D LLC

  • Seller Mattson, Bryan
    145 Clarendon Avenue, Palm Beach, FL 33480
  • Buyer 15 Union Square 3D LLC
    15 Union Square West, Unit 3D, New York, NY 10003

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