Somerset County and Hillsborough Township property record for 23 E Mountain Rd, Hillsborough, NJ 08844
| Property Type | Single Family Home |
|---|---|
| Details | 1,532 sqft · built 1780 |
| Lot Size | 1.18 acres (51,836 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $155,000 (May 1993) |
| Tax Bill | $9,651 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-00012-0000-00024 |
| Primary APN | 10-00012-0000-00024 |
|---|---|
| Alternative APN |
|
| Total Rooms | 4 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 1,532 sqft Living Area |
| Year Built | Built 1780 |
|---|---|
| Effective Year Built | Effective 1780 |
| Construction Type | Frame |
| Lot Area | 51,836 sqft |
| Lot Dimensions | 529 ft deep x 92 ft wide |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 23 E MOUNTAIN RD |
|---|---|
| City | HILLSBOROUGH |
| State | NJ |
| Zip | 08844-3369 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R |
| Legal Description | ADDITIONAL LOTS: POOL AKA 599 AMWELL |
| Legal Block | 12 |
| Legal Lot Number | 24 |
| Jurisdiction | SOMERSET NJ |
| Township / Civil Division | HILLSBOROUGH |
| Census Block Group | 1 |
| Census Block | 1033 |
| Census Tract | 53707 |
23 E Mountain Rd is owned and occupied by two individuals who bought it in May 1993.
Source: Somerset County and Hillsborough Township records, as of July 7, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 23 E MOUNTAIN RD, HILLSBOROUGH, NJ 08844-3369 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 10, 1993 · Amount on File |
| Deed Sale | May 10, 1993 · Amount on File |
| Prior Sale | Jun 17, 1991 · Amount on File |
| Deed Book / Page | 1905 / 204 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 23 E Mountain Rd was $9,651, up 12.8% from the year before.
Source: Somerset County and Hillsborough Township assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | New Jersey |
| County | Somerset County |
| County Subdivision | Hillsborough Township |
| Unified School District | Hillsborough Township School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $450,400 (+3.42%) Land $276,900 Building $173,500 | $450,400 (+3.42%) Land $276,900 Building $173,500 | |
| 2025 | $9,651.00 (+12.78%) | $435,500 Land $261,900 Building $173,600 | $435,500 Land $261,900 Building $173,600 |
| 2024 | $8,557.00 | ||
| 2023 | $403,800 Land $236,900 Building $166,900 | $403,800 Land $236,900 Building $166,900 | |
| 2022 | $8,570.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 23 E Mountain Rd in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1999.
Source: FEMA National Flood Hazard Layer, effective September 3, 2025 · 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 | 3 in force |
| Nearby Flood Claims | 5 (1999–2021) |
| Claims Outside the SFHA | 1 of 5 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| Claims by Event |
|
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 risk around 23 E Mountain Rd is low, with a 0.01% 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 | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 150 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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