Gardner Katherine S — 18 Willow Ave
18 Willow Ave is on the Village of Larchmont 2026 assessment roll (parcel 7-11-109). Unofficial almanac — confirm on the published village roll.
- Full market$3,670,000
- Assessed$3,670,000
- Land$580,000
- Est. annual tax$77,519
Owner on roll: Gardner Katherine S. Type: Single-family. School district: Mamaroneck. Assessed change: +3.0% vs 2025.
How this compares to its street
This parcel's assessed value rose 3.0% between the last two rolls. Across the 40 comparable parcels on Willow Ave, the median rose 3.0%.
That is within 5 points of the street's median. Assessments on a block usually move together.
Screening comparison only, computed from published rolls. It does not account for what is physically on the lot. Confirm everything with the assessor before acting.
What the public record says about this property
3 closed spill records at this address
DEC closed these cases, most recently 2021-12-17. 2 involved heating oil.
Source: NYS DEC Spill Incidents
Compiled from published federal, state and municipal records on 2026-09-16. Each finding names its source and links to the agency that holds the underlying file. FEMA flood zones are regulatory map boundaries, not forecasts — flooding occurs outside them. A DEC spill record is a report filed at an address, not a determination about the building; a closed case means the agency closed its file. This section is not a risk score, an all-clear, or insurance, legal, appraisal, or real-estate advice. Confirm anything material with FEMA, DEC, your insurer, counsel, and the municipality before you act. See also Terms of Use.
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FAQ
What is the assessed value of 18 Willow Ave?
On the 2026 Village of Larchmont roll, parcel 7-11-109 is assessed at $3,670,000 with full market value $3,670,000.
What is the estimated property tax for 18 Willow Ave?
About $77,519 using published village, Mamaroneck school, and town/county mill rates on the assessed value. Not an official bill.
Who is the owner on the roll for 18 Willow Ave?
The 2026 Village of Larchmont roll lists Gardner Katherine S as the owner for parcel 7-11-109. Owner names are public record as published on the assessment roll.
Unofficial. Confirm figures on the Village assessment rolls before decisions. Town and school taxes may use the Town of Mamaroneck assessment.