| Primary address | 89 Mountain Avenue, Mendham |
| Zip code | 07945 |
| County | Morris |
| Municipality | Mendham Borough |
| Block | 501 |
| Lot | 8 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 10/19/2005 |
| Sale price | $1 |
| Arm's length | Register |
| Property tax | $10,168 |
| Building sqft | 2,140 |
| Building class | Residential (2) |
| Acreage | 1.37 |
| Year built | 1955 |
| Stories | 1 |
| Exterior structural material | Register |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
89 Mountain Avenue, Mendham, NJ 07945 was built in 1955 and has a total of 2,140 square feet.
What is the assessed value of 89 Mountain Avenue, Mendham, NJ 07945 and the property tax paid?Assessed at $552,900, the tax amount paid for 89 Mountain Avenue, Mendham, NJ 07945 is $10,167.
When was 89 Mountain Avenue, Mendham, NJ 07945 last sold and what was the last sale price?89 Mountain Avenue, Mendham, NJ 07945 was last sold in 10/19/2005 for $1.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 89 Mountain Avenue, Mendham, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 89 Mountain Avenue, Mendham, NJ 07945. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025 |
| Property tax | $10,168 |
| Market value | $552,900 |
Here's the assessment & property tax history for 89 Mountain Avenue, Mendham, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|---|
| 2025 | $552,900 | $552,900 | 1.839 | $10,168 | -25.24% |
| 2024 | $552,900 | $552,900 | 2.46 | $13,601 | +0.24% |
| 2023 | $552,900 | $552,900 | 2.454 | $13,568 | +2.94% |
| 2022 | $552,900 | $552,900 | 2.384 | $13,181 | +1.79% |
| 2021 | $552,900 | $552,900 | 2.342 | $12,949 | +1.78% |
Create a free account to unlock extended information for 89 Mountain Avenue, Mendham, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| Fire hazard zone | See more on map |
| Geohazard zones map | Register |
Access the detailed traffic volume map for 89 Mountain Avenue, Mendham to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| Mountain View Middle School | 10 | Public | 5-8 | 229 | 0.67 |
| The Cottage School | NR | Private | PK, K-3 | 23 | 1.02 |
| The Cottage School | NR | Private | PK, K-3 | 23 | 1.02 |
| St Joseph Elementary School | NR | Private | K-8 | 146 | 1.03 |
| Hilltop School | 4 | Public | PK, K-4 | 262 | 1.11 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| Mountain View Middle School | 10 | Public | 5-8 | 229 | 0.67 |
| St Joseph Elementary School | NR | Private | K-8 | 146 | 1.03 |
| Daytop Preparatory School | NR | Private | 8-12 | 62 | 1.29 |
| Mendham Twp Middle School | 10 | Public | 5-8 | 301 | 3.12 |
| Black River Middle School | 7 | Public | 6-8 | 345 | 3.35 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| West Morris Mendham High School | 8 | Public | 9-12 | 1,077 | 1.22 |
| Daytop Preparatory School | NR | Private | 8-12 | 62 | 1.29 |
| Delbarton School | NR | Private | 7-12 | 609 | 4.15 |
| Randolph High School | 6 | Public | 9-12 | 1,349 | 4.57 |
| American Christian School | NR | Private | PK-12 | 241 | 5.16 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 89 Mountain Avenue, Mendham.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 2 Valley Way, Mendham | 2,480 | ||
| 6 Birch St, Mendham | 1,944 | 03/17/2014 | $615,000 |
| 170 Mountainside Rd, Mendham | 1,068 | ||
| 174 Mountainside Rd, Mendham | 1,126 | 09/13/2016 | $326,000 |
| 136 Mountainside Rd, Mendham | 1,468 | 09/12/2022 | $574,000 |
| 87 Mountain Ave, Mendham | 2,547 | 04/09/2015 | $623,000 |
| 83 Mountain Ave, Mendham | 3,310 | 09/22/2017 | $1,070,000 |
| 79 Mountain Ave, Mendham | 3,346 | 05/12/2025 | $870,000 |
| 176 Mountainside Rd, Mendham | 3,960 | 03/28/2017 | $949,900 |
| 5 Aster Ter, Mendham | 2,542 | 12/05/2019 | $10 |
| 81 Mountain Ave, Mendham | 1,768 | 09/12/2023 | $610,000 |
| 120 Mountainside Rd, Mendham | 1,092 | 01/15/2026 | $835,000 |
| 4 Valley Way, Mendham | 2,544 | 07/19/2013 | $740,000 |
| 146 Mountainside Rd, Mendham | 5,920 | 09/30/2025 | $1,775,000 |
| 130 Mountainside Rd, Mendham | 3,190 | 04/26/2016 | $845,000 |
| 116 Mountainside Rd, Mendham | 3,473 | ||
| 2 Birch St, Mendham | 2,361 | 06/11/2008 | $1 |
| 160 Mountainside Rd, Mendham | 3,613 | 06/20/2002 | $439,000 |
| 124 Mountainside Rd, Mendham | 3,230 | 12/18/2009 | $575,000 |
| 85 Mountain Ave, Mendham | 4,352 | 10/20/2021 | $1 |