Harper Katherine · Harper Seth — 45 Dillon Rd
45 Dillon Rd is on the Town of Mamaroneck 2026 assessment roll (parcel 5-4-593). Unofficial almanac — confirm on the published town roll.
- Full market$1,303,000
- Assessed$1,303,000
- Land$335,000
- Est. annual tax$27,614
Owner on roll: Harper Katherine · Harper Seth. Type: Single-family. School district: Mamaroneck. Assessed change: +22.3% vs 2025.
How this compares to its street
This parcel's assessed value rose 22.3% between the last two rolls. Across the 19 comparable parcels on Dillon Rd, the median rose 2.0%.
That is 20.4 points above its own street. A finished renovation, an addition, new construction, or a correction to a previously low assessment all do this, and none of them is an error.
If none of those happened here, ask the assessor what changed. Grievance season in Westchester has the deadlines; miss one and you wait a year.
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
Part of this lot lies in the AE flood zone
The lot boundary crosses the zone. Whether the house itself is inside it depends on where it sits on the lot, which this does not know. FEMA describes AE as: 1% annual chance flood, base flood elevation published. Base flood elevation 12.0 ft.
Source: FEMA National Flood Hazard Layer
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.
Dillon Rd street hub · Open in search · Markdown (agents) · Official rolls
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FAQ
What is the assessed value of 45 Dillon Rd?
On the 2026 Town of Mamaroneck roll, parcel 5-4-593 is assessed at $1,303,000 with full market value $1,303,000.
What is the estimated property tax for 45 Dillon Rd?
About $27,614 using published town, Mamaroneck school, and town/county mill rates on the assessed value. Not an official bill.
Who is the owner on the roll for 45 Dillon Rd?
The 2026 Town of Mamaroneck roll lists Harper Katherine · Harper Seth as the owner for parcel 5-4-593. Owner names are public record as published on the assessment roll.
Unofficial. Confirm figures with the Town of Mamaroneck assessor before decisions. This edition covers the unincorporated town; the Village of Larchmont and Village of Mamaroneck have their own rolls.