Morris County and Mendham Borough property record for 5 Mountain Ave, Mendham, NJ 07945
| Property Type | Single Family Home |
|---|---|
| Details | 1,416 sqft · built 1920 |
| Lot Size | 0.48 acres (20,909 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $10,386 (2024) |
| APN | 18-00601-0000-00029 |
| Primary APN | 18-00601-0000-00029 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,416 sqft Living Area |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Exterior Material | Stucco |
| Lot Area | 20,909 sqft (0.48 acres) |
| Lot Dimensions | 208 ft deep x 100 ft wide |
| Parking Spaces | 1 Parking Space |
| Old Parcel Number | 1800003A00029 |
|---|---|
| Street Address | 5 MOUNTAIN AVE |
| City | MENDHAM |
| State | NJ |
| Zip | 07945-1424 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1/4A |
| Legal Block | 601 |
| Legal Lot Number | 29 |
| Jurisdiction | MORRIS NJ |
| Township / Civil Division | MENDHAM |
| Census Block Group | 1 |
| Census Block | 1027 |
| Census Tract | 46400 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Mendham Historic District (Boundary Increase) listed 2014 · 86 contributing resources · NRIS 14000932 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Morris County and Mendham Borough records, as of July 9, 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 | 5 MOUNTAIN AVE, MENDHAM, NJ 07945-1424 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Dec 11, 2017 |
| Transfer Doc | 2018002693 |
| Record Updated | Sep 20, 2026 |
Source: Morris County and Mendham Borough assessment roll, as of July 9, 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) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $422,200 (-) Land $292,600 Building $129,600 | $422,200 (-) Land $292,600 Building $129,600 | |
| 2025 | $422,200 (-) Land $292,600 Building $129,600 | $422,200 (-) Land $292,600 Building $129,600 | |
| 2024 | $10,386.00 (+3.19%) | ||
| 2023 | $422,200 Land $292,600 Building $129,600 | $422,200 Land $292,600 Building $129,600 | |
| 2022 | $10,065.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 2 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 - SHORT HILLS private · serves 217,230 people · EPA ID NJ0712001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2022 |
| Lead | 3 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 262 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 | 1,200 / 35 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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