100 Madison Ave
100 Madison Ave is on the Town of Mamaroneck 2026 assessment roll (parcel 1-33-16). Unofficial almanac — confirm on the published town roll.
- Full market$1,835,000
- Assessed$1,835,000
- Land$540,000
- Est. annual tax$38,889
Owner on roll: Desmond Jamie Lauren · Desmond Marc Edwin. 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 5 comparable parcels on Madison Ave, 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.
Madison Ave street hub · Open in search · Markdown (agents) · Official rolls
Nearby on this street
FAQ
What is the assessed value of 100 Madison Ave?
On the 2026 Town of Mamaroneck roll, parcel 1-33-16 is assessed at $1,835,000 with full market value $1,835,000.
What is the estimated property tax for 100 Madison Ave?
About $38,889 using published town, Mamaroneck school, and town/county mill rates on the assessed value. Not an official bill.
Unofficial. Confirm figures with the Town of Mamaroneck assessor before decisions. This edition covers the unincorporated town; the villages of Larchmont and Mamaroneck have their own rolls.