20 School St, Armonk, NY 10504 Property Records

Westchester County and North Castle Town property record for 20 School St, Armonk, NY 10504 · Last verified May 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bathrooms	2 Baths
Year Built	Built 1940
Square Footage	1,635 sqft Living Area
Lot Size	8,276 sqft (0.19 acres)
Garage	Attached, 250 sqft
Occupancy	Owner Occupied
Last Sale	$535,000 (2018)
Tax Bill	$18,259.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`553800 108.01-2-35`
Alternative APN	`R10`

Interior

Full Baths	2 Baths
Building Area	1,635 sqft Living Area
1st Floor	1,635 sqft 1st Floor
Stories	2 Stories
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1940
Lot Area	8,276 sqft (0.19 acres)
Parking Spaces	1 Parking Spaces
Garage Type	Attached Garage
Garage Area	250 sqft Garage

Utilities and HVAC

Cooling System	Central Cooling
Sewage	Municipal Sewage
Water Source	Commercial Water Source

Location & Zoning

Account Number	R10
Street Address	20 SCHOOL ST
City	ARMONK
State	NY
Zip	10504-1948
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Block	2
Legal Lot Number	35.000
Jurisdiction	WESTCHESTER NY
Minor Civil Division	NORTH CASTLE
Census Blockgroup	1
Census Block	1009
Census Tract	12303

Owner

Source: Westchester County and North Castle Town records · APN 553800 108.01-2-35

Assessment roll updated May 14, 2026 · Last verified May 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	20 SCHOOL ST, ARMONK, NY 10504-1948
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jan 30, 2018 · Amount on Record
Deed Sale	Jan 30, 2018 · Amount on Record
Prior Sale	Jul 12, 2013 · Amount on Record
Deed Doc Number	2018580123070
Prior Transfer Date	Mar 31, 2003
Prior Transfer Doc	0431260936
Record Refreshed	Jun 08, 2026

January 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	WESTCHESTER NY
Recording Date	Jan 30, 2018
Property Address	20 SCHOOL ST, ARMONK, NY 10504-1948
Document Number	0580123070
Book / Page	058012 / 003070
Instrument Date	Jan 12, 2018
Transaction Type	Transfer
Record Updated	Feb 13, 2018
Title Company	NEW YORK TITLE RESEARCH CORPORATION

Transaction

Amount	Amount Recorded
Tax	$2,140.00
Amount Accuracy	Confirmed
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10 MILLER CIR NORTH CASTLE NY 105041361, NORTH CASTLE, NY 10504-1361

Tax Assessment & Valuation

Source: Westchester County and North Castle Town records · Assessment roll updated May 14, 2026 · Last verified May 2026

Property Jurisdictions

Type	Name
State	New York
County	Westchester County
County Subdivision	North Castle Town
Unified School District	Byram Hills Central School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$18,259.00	$12,600 (-) Land $800 Building $11,800	$777,778 (+11.11%) Land $49,383 Building $728,395
2024		$12,600 (+7.69%) Land $800 Building $11,800	$700,000 (-1.28%) Land $44,444 Building $655,556
2023		$11,700 Land $800 Building $10,900	$709,091 Land $48,485 Building $660,606

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Westchester County (36119C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AE
Flood Hazard	High
100-Year Floodplain	Yes 1% annual chance
Special Flood Hazard Area	Yes
Flood Insurance Requirement	Required (federally backed mortgages)
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM

Wildfire

Wildfire Risk	Low above 20% of the US · above 55% of New York
Wildfire Likelihood	About 1 in 10,000 per year
Exposure	Direct burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.