525 Hillside Ave, Mountainside, NJ 07092 Property Records

Union County and Mountainside Borough property record for 525 Hillside Ave, Mountainside, NJ 07092

Property Summary

Property Type	Single Family Home
Details	4,590 sqft · built 1974
Lot Size	0.894 acres (38,943 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,850,000 (Jan 2024)
Tax Bill	$27,861 (2025)
Deeds & Mortgages	Sep 2025 Line of Credit Jan 2024 Sale & Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`10-00011-0000-00004-01`

Property Details

APN / Parcel Number

Primary APN	`10-00011-0000-00004-01`
Alternative APN	`1000011000000004A`

Interior

Building Area	4,590 sqft Living Area

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Lot Area	38,943 sqft (0.894 acres)

Location & Zoning

Old Parcel Number	1000011000000004A
Street Address	525 HILLSIDE AVE
City	MOUNTAINSIDE
State	NJ
Zip	07092-2529
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-2
Legal Block	11
Legal Lot Number	4.1
Jurisdiction	UNION NJ
Township / Civil Division	MOUNTAINSIDE
Census Block Group	2
Census Block	2016
Census Tract	38300

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants in Common

Deeds, Mortgages & Sale History

Date	Document
Sep 26, 2025	Deed of Trust, Mortgage · Line of Credit CITIZENS BANK NA
Jan 19, 2024	Deed, Transfer · Conventional Mortgage MORGAN STANLEY PRIVATE BANK NA
Apr 26, 2022	Deed, Transfer · Conventional Mortgage CALIBER HOME LOANS INC
Mar 19, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY
Mar 21, 2019	Grant Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 19, 2024 · Amount on Record
Deed Sale	Jan 19, 2024 · Amount on Record
Prior Sale	Apr 26, 2022 · Amount on Record
Deed Document Number	202435171
Deed Book / Page	6534 / 2631
Prior Transfer Date	Dec 27, 2018
Prior Transfer Doc	0063130967
Record Updated	Sep 20, 2026

September 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	UNION NJ
Property Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Transaction Type	Mortgage
Record Updated	Oct 14, 2025
Title Company	ACCURATE GROUP, ACCURATE GROUP LLC OH

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529

Mortgage

Document Number	0156982102
Date	Sep 26, 2025
Book Page	15698/2102
Instrument	83480

Lender

Name	CITIZENS BANK NA
Type	Bank
Address	PROVIDENCE, RI 02903

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Sep 25, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2024: Deed, Transfer

Document Type	Deed
Jurisdiction	UNION NJ
Recording Date	Jan 19, 2024
Property Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Document Number	0065342631
Book / Page	6534 / 2631
Instrument Date	Dec 15, 2023
Instrument	35171
Transaction Type	Transfer
Record Updated	Feb 1, 2024
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$38,360.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	15 ROBERTS RD, WARREN, NJ 07059-5205

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529

Mortgage

Document Number	0000060480
Date	Jan 19, 2024
Instrument	60480

Lender

Name	MORGAN STANLEY PRIVATE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2054

April 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	UNION NJ
Recording Date	Apr 26, 2022
Property Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Document Number	0064612374
Book / Page	6461 / 2374
Instrument Date	Apr 7, 2022
Instrument	17398
Transaction Type	Transfer
Record Updated	May 12, 2022
Title Company	ANGEL TITLE AND ABSTRACT INC, ANGEL TITLE & ABSTRACT INC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$26,205.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	525 HILLSIDE AVE, 525, MOUNTAINSIDE, NJ 07092-2529

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529

Mortgage

Document Number	0000036306
Date	Apr 26, 2022
Instrument	36306

Lender

Name	CALIBER HOME LOANS INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2052

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	UNION NJ
Recording Date	Mar 19, 2019
Property Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Document Number	0063130624
Book / Page	006313 / 000624
Instrument Date	Dec 27, 2018
Instrument	310838
Transaction Type	Transfer
Record Updated	Apr 1, 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	Revocable Trust
Address	525 HILLSIDE AVE MOUNTAINSIDE NJ 070922529, MOUNTAINSIDE, NJ 07092-2529

March 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	UNION NJ
Recording Date	Mar 21, 2019
Property Address	525 HILLSIDE AVE, MOUNTAINSIDE, NJ 07092-2529
Document Number	0063130967
Book / Page	006313 / 000967
Instrument Date	Dec 27, 2018
Instrument	310929
Transaction Type	Transfer
Record Updated	Apr 3, 2019
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	525 HILLSIDE AVE MOUNTAINSIDE NJ 070922529, MOUNTAINSIDE, NJ 07092-2529

Tax Assessment & Valuation

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		$1,326,700 (-) Land $383,200 Building $943,500	$1,326,700 (-) Land $383,200 Building $943,500
2025	$27,861.00 (+2.44%)	$1,326,700 (-) Land $383,200 Building $943,500	$1,326,700 (-) Land $383,200 Building $943,500
2024	$27,197.00 (+2.65%)
2023		$1,326,700 (-) Land $383,200 Building $943,500	$1,326,700 (-) Land $383,200 Building $943,500
2022	$26,494.00	$1,326,700 Land $383,200 Building $943,500	$1,326,700 Land $383,200 Building $943,500

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

Flood

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	6 in force
Nearby Flood Claims	5 (1979–2022)
Claims Outside the SFHA	5 of 5
Most Recent Claim	Mar 2022 · 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

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	0.01% annual chance
Exposure	None beyond 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 261 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
T-Mobile Fixed Wireless	100 / 20

525 Hillside Ave, Mountainside, NJ 07092 Property Records

Property Summary

Property Details

APN / Parcel Number

Interior

Exterior

Location & Zoning

Owner

Deeds, Mortgages & Sale History

Assessor's Deed Record

September 2025: Deed of Trust, Mortgage

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

Interest

January 2024: Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

April 2022: Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

March 2019: Quit Claim Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

March 2019: Grant Deed, Transfer

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

Tax Assessment & Valuation

Property Jurisdictions

Tax Bill & Assessment History

Flood

Wildfire

Drinking Water

Violations Reported to EPA

Internet Providers

Nearby Properties on Hillside Ave

Nearby Streets

Search Property Records by Address or Parcel Number