Union County and Mountainside Borough property record for 1023 Prospect Ave, Mountainside, NJ 07092
| Property Type | Single Family Home |
|---|---|
| Details | 2,712 sqft · built 1962 |
| Lot Size | 0.842 acres (36,678 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,814,000 (Sep 2026) |
| Tax Bill | $14,916 (2025) |
| Deeds & Mortgages | Sep 2026 Sale May 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-00005-01-00010 |
| Primary APN | 10-00005-01-00010 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,712 sqft Living Area |
| 1st Floor Area | 2,712 sqft |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Exterior Material | Frame |
| Construction Type | Frame |
| Lot Area | 36,678 sqft (0.842 acres) |
| Parking Spaces | 2 Parking Spaces |
| Old Parcel Number | 1000005A00010 |
|---|---|
| Street Address | 1023 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 | 10 |
| Jurisdiction | UNION NJ |
| Township / Civil Division | MOUNTAINSIDE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 38300 |
Source: Union County and Mountainside Borough records, as of October 13, 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 | 1023 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Husband and Wife |
| Date | Document |
|---|---|
| Sep 28, 2026 | Deed, Transfer LAND TITLE, ACRES LAND TITLE |
| May 27, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 28, 2026 · Amount on Record |
| Deed Sale | Sep 28, 2026 · Amount on Record |
| Deed Document Number | 202658173 |
| Deed Book / Page | 6633 / 2629 |
| Prior Transfer Date | May 24, 2021 |
| Prior Transfer Doc | 0064140378 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | UNION NJ |
| Recording Date | Sep 28, 2026 |
| Property Address | 1023 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508 |
| Document Number | 0000058173 |
| Book / Page | 6633 / 2629 |
| Instrument Date | Sep 9, 2026 |
| Instrument | 202658173 |
| Transaction Type | Transfer |
| Record Updated | Oct 9, 2026 |
| Title Company | LAND TITLE, ACRES LAND TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $183,214.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1023 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | UNION NJ |
| Recording Date | May 27, 2021 |
| Property Address | 1023 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508 |
| Document Number | 0064140378 |
| Book / Page | 6414 / 378 |
| Instrument Date | May 24, 2021 |
| Instrument | 5167 |
| Transaction Type | Transfer |
| Record Updated | Oct 28, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1023 PROSPECT AVE, MOUNTAINSIDE, NJ 07092-1508 |
Source: Union County and Mountainside Borough assessment roll, as of July 8, 2026
| Type | Name |
|---|---|
| State | New Jersey |
| County | Union County |
| Municipality | Mountainside Borough |
| Unified School District | Mountainside Borough School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $710,300 (-) Land $350,500 Building $359,800 | $710,300 (-) Land $350,500 Building $359,800 | |
| 2025 | $14,916.00 (+2.44%) | $710,300 (-) Land $350,500 Building $359,800 | $710,300 (-) Land $350,500 Building $359,800 |
| 2024 | $14,561.00 (+2.66%) | ||
| 2023 | $710,300 Land $350,500 Building $359,800 | $710,300 Land $350,500 Building $359,800 | |
| 2022 | $14,184.00 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
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.
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 | 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.
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 |
| 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.
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 |
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