20 Prospect St
Mendham, NJ 07945
5 Beds
7 Baths
6,384 sqft (on 1.40 acres)
5 Beds
7 Baths
6,384 sqft
(on 1.40 acres)
Home Value
Trulia Estimate
$2.01MSince last month
Decreased$2K (-0.1%)Since last year
Increased$121K (+6.4%)Since last sale
Increased$2M (+345.2%)Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.
Trulia Estimate
The of this home's value increased by +50% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $2M |
| July 2026 | $2.01M |
| June 2026 | $2.03M |
| May 2026 | $2.01M |
| April 2026 | $1.92M |
| March 2026 | $1.91M |
| February 2026 | $1.86M |
| January 2026 | $1.82M |
2025 | |
2024 | |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2018 | |
2017 | |
2016 | |
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.17 | Single-Family Home | $950,000 | 11/03/25 | 5 | 6 | - | |
0.14 | Single-Family Home | $1,220,000 | 07/17/26 | 4 | 3 | - | |
0.17 | Single-Family Home | $880,000 | 07/24/26 | 4 | 4 | - | |
0.43 | Single-Family Home | $769,000 | 10/14/25 | 3 | 3 | - | |
0.28 | Single-Family Home | $750,000 | 09/02/25 | 3 | 2 | - | |
0.19 | Single-Family Home | $1,080,000 | 12/16/25 | 3 | 3 | - | |
0.42 | Single-Family Home | $849,000 | 11/17/25 | 4 | 3 | - | |
0.95 | Single-Family Home | $785,000 | 10/30/25 | 4 | 2.5 | 2,428 | |
0.71 | Single-Family Home | $920,000 | 11/14/25 | 4 | 3 | - | |
0.73 | Single-Family Home | $1,100,000 | 04/28/26 | 4 | 4 | - |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.08 | $1,636,400 | 5 | 5 | - | Off Market | |
0.12 | $737,300 | 3 | 3 | - | Off Market | |
0.14 | $712,400 | 4 | 2 | - | Off Market | |
0.14 | $1,220,000 | 4 | 3 | - | Recently Sold | |
0.16 | $1,342,500 | 4 | 5 | - | Recently Sold | |
0.11 | $1,505,300 | 6 | 4 | - | Off Market | |
0.10 | $1,914,700 | 5 | 5 | - | Off Market | |
0.16 | $1,129,600 | 4 | 2.5 | - | Off Market | |
0.17 | $880,000 | 4 | 4 | - | Recently Sold | |
0.18 | $885,400 | 4 | 3 | - | Off Market | |
0.17 | $950,000 | 5 | 6 | - | Recently Sold | |
0.18 | $702,100 | 1 | 1 | - | Off Market |
Local Information
- Map ViewExplore the area around 20 Prospect St.
- Schools1 Preschool School2 Elementary Schools1 Middle School1 High School
- Shop & Eat
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1999
Lot Size
1.4 acres
Living Area
6,384 sqft
Price/Sqft
$315
Parking
Garage
About this House
EXQUISITE CUSTOM COLONIAL LOCATED AT THE END OF A PRIVATE STREET IN THE HEART OF MENDHAM BORO. THIS 5 BDRM, 5.2 BATH HOME OFFERS OVER 6,000 SQ. FT. ON 1.4 ACRES WITHIN STEPS TO TOWN. SPECIAL FEATURES INCLUDE A SPACIOUS KITCHEN WITH CHERRY CABINETS & LARGE GRANITE CENTER ISLAND OPENING TO THE FAMILY ROOM COMPLETE WITH FIREPLACE, CUSTOM BUILT IN CABINETRY, TREY CEILING & ACCESS TO THE DECK AND PATIO. THE GRAND MASTER SUITE BOASTS A LUXURIOUS MASTER BATH, 2 LARGE WALK-IN CLOSETS & SITTING ROOM. THE GRACIOUS FOYER WELCOMES YOU TO THE FORMAL LIVING ROOM WITH BEAUTIFUL GAS FIREPLACE AND THE LARGE DINING ROOM WITH CUSTOM WAINSCOTING. COMPLETING THE FIRST FLOOR IS A LIBRARY/OFFICE, LAUNDRY ROOM & 2 POWDER ROOMS. THE HUGE WALK-OUT LOWER LEVEL OFFERS A MEDIA ROOM, GAME ROOM, OFFICE & FULL BATH. N.J ENERGY STAR HOME.
20 Prospect St, Mendham, NJ 07945 is a 5 bedroom, 8 bathroom, 6,384 sqft single-family home built in 1999. It last sold for $450,000 on Aug 2, 1999. It is currently off market. The Trulia Estimate is $2,013,000, with a rent estimate of $7,552/month.
Home Details for 20 Prospect St
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Interior Details BasementAdditional StorageAtticNumber of Rooms: 10Types of Rooms: Walk In Closet, Breakfast Nook, Dining Room, Family Room, Laundry Room, Library, Master Bath, Mud Room, Office, Pantry, Recreation RoomStorageCeiling Fan |
Heating & Cooling Heating: Forced Air, GasAir ConditioningCooling System: CentralHeating Fuel: Forced Air |
Levels, Entrance, & Accessibility Stories: 3Floors: Tile, Carpet, Hardwood |
Appliances & Utilities DishwasherDryerRefrigeratorWasher |
Fireplace & Spa FireplaceJetted Bath Tub |
Security Security System |
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Exterior Home Features Roof: AsphaltDeckExterior: Stone, WoodGardenLawnPatioPorchSprinkler System |
Parking & Garage GarageParking Spaces: 6Parking: Garage Attached, Off Street |
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Year Built Year Built: 1999Year Updated: 2017 |
Property Type / Style Property Type: Single Family HomeArchitecture: Colonial |
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Units in Building: 1 |
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Lot Area: 1.40 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Jul 14, 2016 Source: Agent Provided | ListingRemoved | $1,399,000 |
Mar 14, 2016 Source: Agent Provided | Listed For Sale | $1,399,000 |
Dec 6, 2015 Source: Agent Provided | ListingRemoved | $1,595,000 |
May 18, 2015 Source: Agent Provided | PriceChange | $1,595,000 Price decreased by 2% |
Apr 19, 2015 Source: Agent Provided | Listed For Sale | $1,629,000 |
Oct 21, 2011 Source: Agent Provided | ListingRemoved | $1,650,000 |
Jun 18, 2011 Source: Agent Provided | Listed For Sale | $1,650,000 |
Aug 2, 1999 Source: N/A | Sold | $450,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $27,060 | $1,100,000 |
Home facts updated by county records
Market trends in Mendham
Last updated July 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
28
2MoM
Around this home
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
84 % 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
63 % Say kids play outside
61 % 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.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Frequently asked questions about 20 Prospect St
- What is 20 Prospect St estimated to be worth?Trulia's estimated value for 20 Prospect St in Mendham, NJ is $2,013,000.
- What is the price history for 20 Prospect St?20 Prospect St in Mendham, NJ last sold for $450,000 in August 1999.
- Is Mendham a buyer's or seller's market?Mendham is currently a seller's market, based on recent for-sale activity.
- What do residents say about Mendham?Residents describe Mendham, NJ as easy to park in, dog-friendly, and quiet. Most residents say you need a car. See recently sold homes in Mendham, NJ.
- Does 20 Prospect St have air conditioning?Yes, 20 Prospect St in Mendham, NJ has air conditioning.
- Does 20 Prospect St have laundry facilities?Yes, 20 Prospect St in Mendham, NJ has in-unit laundry.
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- SOLDAUG 21, 2026Keller Williams Towne Square Real
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