347 Prospect Ave
347 Prospect Ave is on the Village of Mamaroneck 2026 assessment roll (parcel 9-8-383). Unofficial almanac — confirm on the published village roll.
- Full market$1,623,000
- Assessed$1,623,000
- Land$226,000
- Est. annual tax$36,927
Owner on roll: Desmond C James · Desmond Katherine. Type: Single-family. School district: Mamaroneck. Assessed change: +5.0% vs 2025.
How this compares to its street
This parcel's assessed value rose 5.0% between the last two rolls. Across the 59 comparable parcels on Prospect Ave, the median rose 5.0%.
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
2 closed spill records at this address
DEC closed these cases, most recently 2011-03-03. 2 involved heating oil.
Source: NYS DEC Spill Incidents
Compiled from published federal, state and municipal records on 2026-09-10. 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.
Prospect Ave street hub · Open in search · Markdown (agents) · Official rolls
Nearby on this street
- 128 Prospect Ave
- 129 Prospect Ave
- 184 Prospect Ave
- 209 Prospect Ave
- 215 Prospect Ave
- 228 Prospect Ave
- 303 Prospect Ave
- 304 Prospect Ave
FAQ
What is the assessed value of 347 Prospect Ave?
On the 2026 Village of Mamaroneck roll, parcel 9-8-383 is assessed at $1,623,000 with full market value $1,623,000.
What is the estimated property tax for 347 Prospect Ave?
About $36,927 using published village, Mamaroneck school, and town/county mill rates on the assessed value. Not an official bill.
Open Mamaroneck Village search
Unofficial. Confirm figures with the Village of Mamaroneck and the Town of Mamaroneck assessor before decisions. Town and school taxes may use the Town assessment, which can differ from the Village roll.