NY Property Records
305 Union Ave
305 Union Ave
Mamaroneck, Village · Westchester County · 10543
$879,300Full market value210 · Residential
Owner of record
OwnerDebourno, Eugune
AlsoDebourno, Joanne
Mailing address305 Union Ave · Mamaroneck, NY, 10543
Assessment · 2025 roll
Land assessed$502,600
Total assessed$879,300
Full market value$879,300
Building
StyleColonial
Year built1890
Living area1,932 sq ft
Bedrooms4
Full baths1
HeatHot wtr/stm
FuelGas
Lot
Size0.3 acres
Frontage × depth50 × 256 ft
Lot sq ft12,867
Services & districts
WaterComm/public
SewerComm/public
UtilitiesGas & elec
School districtRye Neck (554801)
Recorded sales · 1
Deed$1Jan 20, 2026
seller EUGENE J DEBOURNO JR
buyer EUGENE DEBOURNO JR 2025 REVOCA
Liber 66020, page 3486
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
SBL15404200010710000000
Print key154.42-1-71
SWIS554803
Parcel ID55480315404200010710000000
Who owns 305 Union Ave?
305 Union Ave, Mamaroneck, Village is owned by Debourno, Eugune per the 2025 NYS assessment roll.
Nearby on Union 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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