251 Williamson Ave, Hillside, NJ 07205 Property Records

Union County and Hillside Township property record for 251 Williamson Ave, Hillside, NJ 07205

Property Summary

Property Type	Single Family Home
Details	1,496 sqft · built 1929
Lot Size	0.088 acres (3,838 sqft)
Owner	2 Individual Names on File
Last Sale	$260,000 (Aug 2022)
Tax Bill	$9,139 (2025)
Deeds & Mortgages	Aug 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`07-00416-0000-00002`

Property Details

APN / Parcel Number

Primary APN	`07-00416-0000-00002`
Alternative APNs	`070041600002` `00105400`

Interior

Stories	2 Stories
Building Area	1,496 sqft Living Area

Exterior

Year Built	Built 1929
Effective Year Built	Effective 1929
Architectural Style	Colonial
Construction Type	Frame
Lot Area	3,838 sqft (0.088 acres)
Lot Dimensions	101 ft deep x 38 ft wide

Location & Zoning

Account Number	00105400
Street Address	251 WILLIAMSON AVE
City	HILLSIDE
State	NJ
Zip	07205-1440
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-40
Legal Subdivision	MAPLE GROVE
Legal Block	416
Legal Lot Number	2
Jurisdiction	UNION NJ
Township / Civil Division	HILLSIDE
Census Block Group	3
Census Block	3001
Census Tract	32200

Owner

251 Williamson Ave is owned and occupied by two individuals who bought it in August 2022.

Source: Union County and Hillside Township records, as of July 8, 2026

Owner of Record	2 Individual Names on File
Mailing Address	251 WILLIAMSON AVE, HILLSIDE, NJ 07205-1440
Occupancy	Owner Occupied
Owner Type	Individual

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

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 3, 2022 · Amount on File
Deed Sale	Aug 3, 2022 · Amount on File
Deed Document Number	202221013
Deed Book / Page	6475 / 2908
Record Updated	Oct 29, 2026

August 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	UNION NJ
Recording Date	Aug 3, 2022
Property Address	251 WILLIAMSON AVE, HILLSIDE, NJ 07205-1440
Document Number	0064752908
Book / Page	6475 / 2908
Instrument Date	Jan 25, 2021
Instrument	21013
Transaction Type	Transfer
Record Updated	Aug 19, 2022
Title Company	TITLE EXPERTS LLC

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$425.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	377 S HARRISON ST, 377, EAST ORANGE, NJ 07018-1218

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	251 WILLIAMSON AVE, HILLSIDE, NJ 07205-1440

Mortgage

Document Number	0152592082
Date	Aug 3, 2022
Book Page	15259/2082
Instrument	41330

Lender

Name	FIRST ALLIANCE HOME MORTGAGE LLC
Type	Mortgage Company
Address	CRANFORD, NJ 07016

Agreement

Type	FHA Mortgage
Amount	Amount on Record
Term	342 Months
Due	Feb 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 251 Williamson Ave was $9,139, up 7.8% from the year before.

Source: Union County and Hillside Township assessment roll, as of July 8, 2026

Property Jurisdictions

Type	Name
State	New Jersey
County	Union County
County Subdivision	Hillside Township
Unified School District	Hillside Township School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$102,700 (-) Land $41,800 Building $60,900	$102,700 (-) Land $41,800 Building $60,900
2025	$9,139.00 (+7.83%)	$102,700 Land $41,800 Building $60,900	$102,700 Land $41,800 Building $60,900
2024	$8,475.00
2023		$102,700 Land $41,800 Building $60,900	$102,700 Land $41,800 Building $60,900
2022	$8,153.00

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

FEMA maps place 251 Williamson Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2021.

Source: FEMA National Flood Hazard Layer, effective September 24, 2020 · 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
Nearby Flood Claims	1 (2021)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Sep 2021 · Remnants Of Hurricane Ida

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

The area around 251 Williamson Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within ember reach

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	NJ AMERICAN WATER - RARITAN private · serves 615,430 people · EPA ID NJ2004002
Water Source	Surface water
Last State Inspection	Jun 2024
Lead	1 ppb (2026) 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 914 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Xfinity Cable	2,000 / 250
AT&T Fixed Wireless	100 / 20

May also be available: Optimum, T-Mobile.

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