1020 Nautilus Ln
1020 Nautilus Ln is on the Village of Mamaroneck 2026 assessment roll (parcel 9-55-331). This site is unofficial. Check the published village roll to confirm.
- Full market value$1,741,000
- Assessed value$1,741,000
- Land value$815,000
- Estimated annual tax$39,373
Owner on roll: Spiro William · Spiro Ruth. Property type: Single-family. School district: Mamaroneck. Change in assessed value: +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 10 comparable parcels on Nautilus Ln, the median rose 3.0%.
That is within 5 points of the street's median. Assessments on a block usually move together.
This is a rough comparison from the published rolls. It does not account for what is physically on the lot. Confirm everything with the assessor before you act.
Transfer climate on this street
2 priced transfers in the last 24 months across 11 residential parcels. That is 1.9 times the Mamaroneck Village rate. Recent closes on a block are how a street gets into the elevated band.
If last year's town rate holds, about 0.9 of these 11 parcels would record a priced sale in the next 12 months. The number belongs to the street. It does not pin a date on a house.
Streets ranked by transfer climate · How this is scored
Recorded last sales on the assessor file, not listings. Does not use owner names or age. Unofficial — confirm the deed before you act.
What the public record says about this property
Nothing was found in the records checked above. Records only show what was reported to an agency.
Compiled from published federal, state and local records as of October 27, 2026. Each finding names its source and links to the agency that holds the file. A FEMA flood zone is a line on a regulatory map. It does not predict floods, and flooding also happens outside the zones. A spill record from the state environmental agency (DEC) is a report filed for an address. It does not say what is wrong with the building, and a closed case means only that the agency closed its file. This section is not a risk score, an all-clear, or insurance, legal, appraisal or real-estate advice. Before you act on anything here, confirm it with FEMA, DEC, your insurer, a lawyer and the town or village. See also the Terms of Use.
Nautilus Ln street page · Open in search · Markdown version · Official rolls
Nearby on this street
- 1015 Nautilus Ln — assessed $1,804,000
- 1025 Nautilus Ln — assessed $3,158,000
- 1010 Nautilus Ln — assessed $2,093,000
- 1030 Nautilus Ln — assessed $3,516,000
- 1005 Nautilus Ln — assessed $2,807,000
- 1035 Nautilus Ln — assessed $2,180,000
- 1040 Nautilus Ln — assessed $3,013,000
- 1045 Nautilus Ln — assessed $5,041,000
FAQ
What is the assessed value of 1020 Nautilus Ln?
On the 2026 Village of Mamaroneck roll, parcel 9-55-331 is assessed at $1,741,000 with full market value $1,741,000.
What is the estimated property tax for 1020 Nautilus Ln?
About $39,373 using published village, Mamaroneck school, and town/county mill rates on the assessed value. This is an estimate. Your bill may differ.
Open Mamaroneck Village search
Unofficial. Confirm figures with the Village of Mamaroneck and the Town of Mamaroneck assessor before you act on them. Town and school taxes may use the Town assessment, which can differ from the Village roll.