21 Mountainside Rd
Mendham, NJ 07945
4 Beds
2.5 Baths
2,506 sqft (on 3.01 acres)
4 Beds
2.5 Baths
2,506 sqft
(on 3.01 acres)
Local Information
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Description
Pristine 4 bedroom colonial located on Mendham's east side with many updates! Kitchen '12, Master Bath '17, Main Bath '16, Roof '15, Furnace '14, Water Heater '16. Plus new septic being installed. 3+ private, park-like acres and beautiful front views that can be enjoyed throughout the house. The lush, professionally landscaped yard hosts an abundance of specimen trees and perennial plantings. Inside, the home offers a beautifully renovated kitchen that will please any chef, updated bathrooms and allows for easy expansion possibilities. The large family room with wood burning fireplace and generous dining and living rooms make for comfortable living and easy entertaining. Close to schools, shopping and commuting roads, this home has it all!
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.
Home Highlights
Parking
No Info
Outdoor
Patio
HOA
None
Price/Sqft
No Info
Listed
No Info
Home Details for 21 Mountainside Rd
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Year Built Year Built: 1972 |
Property Type / Style Property Type: Single Family HomeArchitecture: Colonial |
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Interior Details Additional StorageStorage |
Fireplace & Spa Fireplace |
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Exterior Home Features Patio |
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Units in Building: 1 |
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Lot Area: 3.01 acres |
Price History for 21 Mountainside Rd
| Date | Price | Event | Source |
|---|---|---|---|
| 09/06/2017 | $753,500 | Sold | GSMLS #3390198 |
| 05/23/2017 | $772,000 | Listed For Sale | Agent Provided |
| 11/07/2003 | $642,500 | Sold | N/A |
| 06/25/1997 | $372,000 | Sold | N/A |
| 12/06/1995 | $389,000 | Sold | N/A |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $15,563 |
| Assessment | $801,400 |
Home facts updated by county records
Comparable Sales for 21 Mountainside Rd
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.82 | Single-Family Home | $785,000 | 10/30/25 | 4 | 2.5 | 2,428 | |
0.43 | Single-Family Home | $700,000 | 12/11/25 | 3 | 3 | 1,522 | |
0.21 | Single-Family Home | $1,150,000 | 10/31/25 | 5 | 4 | - | |
0.99 | Single-Family Home | $940,000 | 07/21/25 | 4 | 2 | 1,968 | |
0.24 | Single-Family Home | $587,500 | 03/26/26 | 2 | 2 | - | |
0.58 | Single-Family Home | $1,575,000 | 12/12/25 | 4 | 4.5 | 4,514 | |
0.19 | Single-Family Home | $620,000 | 04/30/26 | 3 | 3 | - | |
0.17 | Single-Family Home | $735,000 | 07/09/25 | 3 | 4 | - | |
0.69 | Single-Family Home | $835,000 | 01/21/26 | 3 | 2 | - | |
0.17 | Single-Family Home | $670,000 | 11/14/25 | 3 | 4 | - |
Nearby homes
Get a sense of prices in the area by checking nearby homes.
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Assigned Schools
These are the assigned schools for 21 Mountainside Rd.
- Mendham Twp Elementary School
- PK-4
- Public
- 456 Students
9/10GreatSchools RatingParent Rating AverageDoes a great job with gifted and talented students, really prepares everyone for the challenges of middle school. Great STEM programs.Parent Review7y ago - Mendham Twp Middle School
- 5-8
- Public
- 301 Students
9/10GreatSchools RatingParent Rating AverageIn my recent experience a girl was racist to my black friend and my other friend got suspended for defending him also the girl got no consequence even though the school has had multiple assembelys on anti bullying only to not care.Student Review3mo ago - West Morris Mendham High School
- 9-12
- Public
- 1077 Students
10/10GreatSchools RatingParent Rating AverageMy 2 sons have had a great experience at the high school. The teachers and counselors have been great to our family when support was needed. We are grateful for the years at the school and to all the staff for the magnificent education given to our sons.Our son are very prepared for college thanks to the IB program and we’re accepted to great schools for undergraduate education.Parent Review11mo ago 
Check out schools near 21 Mountainside Rd.
What Locals Say about Mendham
At least 49 Trulia users voted on each feature.
95 % Say parking is easy
95 % Say car is needed
87 % Say there's wildlife
85 % Say there's holiday spirit
81 % Say it's dog friendly
80 % Say it's quiet
76 % Say yards are well-kept
73 % Say people would walk alone at night
72 % Say neighbors are friendly
68 % Say they plan to stay for at least 5 years
62 % Say kids play outside
60 % Say there are community events
50 % Say there are sidewalks
46 % Say it's walkable to restaurants
45 % Say it's walkable to grocery stores
37 % Say streets are well-lit
Sourced by Trulia users. Learn more about our methodology.
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Apartments for Rent
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Homes for sale near 21 Mountainside Rd
FOR SALE BY OWNER- NEW - 1 DAY AGO0.56 ACRESCrossroads Realty Inc
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Off Market Homes Near 21 Mountainside Rd
SOLDMAY 19, 2026Keller Williams Realty Metropolitan- See more homes for sale inMendham
Homes for rent near 21 Mountainside Rd
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21 Mountainside Rd, Mendham, NJ 07945 is a 4 bedroom, 3 bathroom, 2,506 sqft single-family home built in 1972. This property is not currently available for sale. 21 Mountainside Rd was last sold on Sep 6, 2017 for $753,500. The current Trulia Estimate for 21 Mountainside Rd is $1,145,300.