4 Mill Ln, Armonk, NY 10504 Property Records

Westchester County and North Castle Town property record for 4 Mill Ln, Armonk, NY 10504

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 3,066 sqft · built 1955
Lot Size	1.18 acres (51,401 sqft)
Owner	2 Individual Names on File
Last Sale	$885,000 (Jun 2018)
Tax Bill	$22,283 (2026)
Deeds & Mortgages	Sep 2026 Line of Credit Aug 2021 Refinance + 4 more
Flood Zone	Zone X (minimal risk)
APN	`553800 101.04-3-62`

Property Details

APN / Parcel Number

Primary APN	`553800 101.04-3-62`
Alternative APNs	`55380000104 0010 022A` `R1A`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Building Area	3,066 sqft Living Area
1st Floor Area	3,066 sqft
Basement Area	987 sqft
Finished Basement	987 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1955
Architectural Style	Split Level
Exterior Material	Other
Lot Area	51,401 sqft (1.18 acres)
Garage Type	Attached
Garage Area	500 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	704 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Heating Fuel	Oil
Sewer	Septic
Water Source	Commercial

Location & Zoning

Account Number	R1A
Street Address	4 MILL LN
City	ARMONK
State	NY
Zip	10504-2603
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-1A
Legal Subdivision	WINDMILL FARM
Legal Block	3
Legal Lot Number	62.000
Jurisdiction	WESTCHESTER NY
Township / Civil Division	NORTH CASTLE
Census Block Group	1
Census Block	1011
Census Tract	12304

Owner

4 Mill Ln is owned and occupied by two individuals who acquired it in August 2018.

Source: Westchester County and North Castle Town records, as of October 21, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on File
Mailing Address	4 MILL LN, ARMONK, NY 10504-2603
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 17, 2026	Deed of Trust, Mortgage · Line of Credit PNC BANK
Aug 18, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance PNC BANK NA
Aug 18, 2021	Deed of Trust, Mortgage · Conventional Mortgage PNC BANK NA
Nov 26, 2019	Deed of Trust, Mortgage · Line of Credit PNC BANK NA
Mar 18, 2020	Deed of Trust, Mortgage · Line of Credit PNC BANK NA
Jan 10, 2019	Quit Claim Deed HORIZON LAND SERVICES LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 22, 2018 · Amount on File
Deed Sale	Jun 22, 2018 · Amount on File
Deed Document Number	2018581723062
Last Transfer Date	Aug 22, 2018
Transfer Doc	0582323583
Record Updated	Oct 29, 2026

September 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Recording Date	Sep 17, 2026
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Document Number	0000003065
Instrument Date	Sep 4, 2026
Instrument	20263065
Transaction Type	Mortgage
Record Updated	Sep 28, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4 MILL LN, ARMONK, NY 10504-2603

Mortgage

Document Number	0000003065,
Date	Sep 17, 2026
Instrument	20263065

Lender

Name	PNC BANK

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	480 Months
Due	Sep 15, 2066

Interest

Max Rate	-1%

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Transaction Type	Mortgage
Record Updated	Sep 10, 2021
Title Company	NATIONALLINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4 MILL LN, ARMONK, NY 10504-2603

Mortgage

Document Number	0612303159
Date	Aug 18, 2021
Instrument	612303159

Lender

Name	PNC BANK NA
Type	Bank
Address	MIAMISBURG, OH 45342

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Transaction Type	Mortgage
Record Updated	Sep 10, 2021
Title Company	NATIONALLINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4 MILL LN, ARMONK, NY 10504-2603

Mortgage

Document Number	0612303158
Date	Aug 18, 2021
Instrument	612303158

Lender

Name	PNC BANK NA
Type	Bank
Address	MIAMISBURG, OH 45342

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Jul 1, 2051

November 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0593173064
Date	Nov 26, 2019
Instrument	593173064

Lender

Name	PNC BANK NA
Type	Bank
Address	PITTSBURGH, PA 15222

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WESTCHESTER NY
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0600733044
Date	Mar 18, 2020
Instrument	600733044

Lender

Name	PNC BANK NA
Type	Bank
Address	PITTSBURGH, PA 15222

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2019: Quit Claim Deed

Document Type	Quit Claim Deed
Jurisdiction	WESTCHESTER NY
Recording Date	Jan 10, 2019
Property Address	4 MILL LN, ARMONK, NY 10504-2603
Document Number	0582323583
Book / Page	058232 / 003583
Instrument Date	Aug 22, 2018
Record Updated	Jan 24, 2019
Title Company	HORIZON LAND SERVICES LLC

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	4 MILL LN NORTH CASTLE NY 105042603, NORTH CASTLE, NY 10504-2603

Tax Assessment & Valuation

The 2026 property tax bill for 4 Mill Ln was $22,283, down 26.9% from the year before.

Source: Westchester County and North Castle Town assessment roll, as of May 14, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$22,283.00 (-26.94%)
2025	$30,501.00	$18,700 (-) Land $3,200 Building $15,500	$1,154,321 (+11.11%) Land $197,531 Building $956,790
2024		$18,700 (-) Land $3,200 Building $15,500	$1,038,889 (-8.33%) Land $177,778 Building $861,111
2023		$18,700 Land $3,200 Building $15,500	$1,133,333 Land $193,939 Building $939,394

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.

Flood

FEMA maps place 4 Mill Ln in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1978.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 13 policies
Nearby Flood Policies	13 in force
Nearby Flood Claims	11 (1978–2020)
Claims Outside the SFHA	9 of 11
Most Recent Claim	Jul 2020 · other causes

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 4 Mill Ln is low, with a 0.02% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · above 54% of New York
Wildfire Likelihood	0.02% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	NORTH CASTLE WATER DISTRICT #2 serves 1,200 people · EPA ID NY5903446
Water Source	Groundwater
Last State Inspection	Mar 2026
Lead	4 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 83 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber	2,300 / 2,300
Optimum Cable	940 / 35

Cell Coverage

4G LTE (outdoors only), no 5G reported

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