1051 Prospect Ave, Mountainside, NJ 07092 Property Records

Union County and Mountainside Borough property record for 1051 Prospect Ave, Mountainside, NJ 07092

Property Summary

Property Type	Single Family Home
Details	2,566 sqft · built 1966
Lot Size	0.976 acres (42,515 sqft)
Owner	Company Name on File
Tax Bill	$14,799 (2025)
Deeds & Mortgages	Jan 2019 Transfer
Flood Zone	Zone X (minimal risk)
APN	`10-00005-01-00008`

Property Details

APN / Parcel Number

Primary APN	`10-00005-01-00008`
Alternative APN	`1000005A00008`

Interior

Stories	1 Story
Building Area	2,566 sqft Living Area
1st Floor Area	2,566 sqft

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1966
Construction Type	Frame
Lot Area	42,515 sqft (0.976 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Old Parcel Number	1000005A00008
Street Address	1051 PROSPECT AVE
City	MOUNTAINSIDE
State	NJ
Zip	07092-1508
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-2
Legal Block	5.1
Legal Lot Number	8
Jurisdiction	UNION NJ
Township / Civil Division	MOUNTAINSIDE
Census Block Group	3
Census Block	3005
Census Tract	38300

Owner

1051 Prospect Ave is owned by a company that acquired it in January 2019.

Source: Union County and Mountainside Borough records, as of July 8, 2026

Owner of Record	Company Name on File
Mailing Address	153 WASHINGTON ROCK RD, WATCHUNG, NJ 07069-6261
Owner Type	Company

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	Name on Deed
Last Sale	Jan 14, 2019
Deed Sale	Jan 14, 2019
Prior Sale	Aug 21, 2001 · Amount on File
Deed Document Number	2019308886
Deed Book / Page	6304 / 950
Prior Transfer Date	May 24, 2001
Prior Transfer Doc	0051320107
Record Updated	Oct 29, 2026

January 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	UNION NJ
Recording Date	Jan 14, 2019
Property Address	1051 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508
Document Number	0063040950
Book / Page	006304 / 000950
Instrument Date	Jan 9, 2019
Instrument	308886
Transaction Type	Transfer
Record Updated	Jan 29, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	153 WASHINGTON ROCK RD WATCHUNG NJ 070696261, WATCHUNG, NJ 07069-6261

Tax Assessment & Valuation

The 2025 property tax bill for 1051 Prospect Ave was $14,799, up 2.4% from the year before.

Source: Union County and Mountainside Borough assessment roll, as of July 8, 2026

Property Jurisdictions

Type	Name
State	New Jersey
County	Union County
Municipality	Mountainside Borough
Unified School District	Mountainside Borough School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$704,700 (-) Land $357,200 Building $347,500	$704,700 (-) Land $357,200 Building $347,500
2025	$14,799.00 (+2.44%)	$704,700 Land $357,200 Building $347,500	$704,700 Land $357,200 Building $347,500
2024	$14,446.00
2023		$704,700 Land $357,200 Building $347,500	$704,700 Land $357,200 Building $347,500
2022	$14,072.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 1051 Prospect Ave in Zone X, an area of minimal flood risk.

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 Policies	1 in force

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 1051 Prospect Ave 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 · lower than 65% of New Jersey
Wildfire Likelihood	0.02% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 237 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
T-Mobile Fixed Wireless	100 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Prospect Ave

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