NY Property Records
21 Willett Ave
21 Willett Ave
Port Chester · Westchester County · 10573
$27,000,000Full market value411 · CommercialSold $32,250,000 · Dec 2020
Owner of record
OwnerUpaca Mariner, LLC
AlsoMariner Coinvest, LLC
Mailing address95 Church St Ste 201 · White Plains, NY, 10601
Assessment · 2025 roll
Land assessed$2,648,800
Total assessed$27,000,000
Full market value$27,000,000
Building
UseHighrise apt
Year built2011
Lot
Size1.39 acres
Lot sq ft60,559
Services & districts
WaterComm/public
SewerComm/public
UtilitiesGas & elec
School districtPort Chester-Rye (554804)
Recorded sales · 1
Deed$32,250,000Dec 20, 2020
seller MARINER PORT CHESTER LLC
buyer UPACA MARINER LLC
Liber 60317, page 3721
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page60317 / 3721
SBL14202300020470000000
Print key142.23-2-47
SWIS554801
Parcel ID55480114202300020470000000
Who owns 21 Willett Ave?
21 Willett Ave, Port Chester is owned by Upaca Mariner, LLC per the 2025 NYS assessment roll. It last sold for $32,250,000 in Dec 2020.
Nearby on Willett Ave
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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