Morris County and Mendham Borough property record for 31 Mountain Ave, Mendham, NJ 07945 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 1,344 sqft · built 1950 |
| Lot Size | 0.402 acres (17,511 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $9,902 (2024) |
| APN | 18-00703-0000-00027 |
| Primary APN | 18-00703-0000-00027 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,344 sqft Living Area |
| 1st Floor Area | 1,344 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Construction Type | Frame |
| Lot Area | 17,511 sqft (0.402 acres) |
| Lot Dimensions | 175 ft deep x 100 ft wide |
| Parking Spaces | 1 Parking Space |
| Old Parcel Number | 1800003C00027 |
|---|---|
| Street Address | 31 MOUNTAIN AVE |
| City | MENDHAM |
| State | NJ |
| Zip | 07945-1401 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 703 |
| Legal Lot Number | 27 |
| Jurisdiction | MORRIS NJ |
| Township / Civil Division | MENDHAM |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 46400 |
Source: Morris County and Mendham Borough records · APN 18-00703-0000-00027
Assessment roll updated July 9, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 31 MOUNTAIN AVE, MENDHAM, NJ 07945-1401 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Morris County and Mendham Borough records · Assessment roll updated July 9, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | New Jersey |
| County | Morris County |
| Municipality | Mendham Borough |
| Elementary School District | Mendham Borough School District (KG - 08) |
| Secondary School District | West Morris Regional School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $402,500 (-) Land $285,200 Building $117,300 | $402,500 (-) Land $285,200 Building $117,300 | |
| 2025 | $402,500 (-) Land $285,200 Building $117,300 | $402,500 (-) Land $285,200 Building $117,300 | |
| 2024 | $9,902.00 (+8.87%) | ||
| 2023 | $402,500 Land $285,200 Building $117,300 | $402,500 Land $285,200 Building $117,300 | |
| 2022 | $9,095.00 |
Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 340270464001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 2 in force |
| Wildfire Risk | Low above 20% of the US · above 35% of New Jersey |
|---|---|
| Wildfire Likelihood | About 1 in 10,000 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 262 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Verizon | Fiber | 2,300 / 2,300 |
| Xfinity | Cable | 1,200 / 35 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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