100 Castle Rd
100 Castle Rd is on the Town of New Castle 2026 assessment roll (parcel 100.7-3-7). This site is unofficial. Check the published town roll to confirm.
- Full market value$949,821
- Assessed value$132,500
- Land value$32,000
- Estimated annual tax$21,380
Owner on roll: Hriskonich William &. Property type: Single-family. School district: Chappaqua. Change in assessed value: +26.3% vs 2025.
How this compares to its street
This parcel's assessed value rose 26.3% between the last two rolls. Across the 43 comparable parcels on Castle Rd, the median did not change.
That is 26.3 points above its own street. A finished renovation, an addition, new construction or a correction to a previously low assessment can all cause this, and none of those is an error.
If none of those happened here, ask the assessor what changed. Grievance season in Westchester lists the deadlines. If you miss one, you wait a year.
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.
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.
Castle Rd street page · Open in search · Markdown version · Official rolls
Nearby on this street
- 94 Castle Rd — assessed $88,100
- 106 Castle Rd — assessed $95,000
- 107 Castle Rd — assessed $117,000
- 111 Castle Rd — assessed $98,000
- 88 Castle Rd — assessed $74,800
- 112 Castle Rd — assessed $97,500
- 85 Castle Rd — assessed $112,300
- 115 Castle Rd — assessed $86,500
FAQ
What is the assessed value of 100 Castle Rd?
On the 2026 Town of New Castle roll, parcel 100.7-3-7 is assessed at $132,500 with full market value $949,821.
What is the estimated property tax for 100 Castle Rd?
About $21,380 using published town, Chappaqua school, and town/county mill rates on the assessed value. This is an estimate. Your bill may differ.
Unofficial. Confirm figures with the Town of New Castle Assessor before you act on them. New Castle covers Chappaqua and Millwood.