4 County Line Rd
Mendham Boro, NJ 07945-2801
- 5 beds
- 8 baths
- 9,282 sqft
- ~5 acre lot
- $409 per sqft
- 1989 build
- – on site
Surrounded by nature, this 22-room custom built estate with 5 bedrooms, 6 full and 4 half baths is a welcoming oasis. From first glimpse, a discerning buyer will be impressed with the architectural features and attention to detail in this elegant home. This magnificent estate boasts a gracious foyer with curved staircase, copious custom millwork and cabinetry, French doors, and beautiful windows with transoms. A stunning main suite with sitting and dressing rooms, walk-in closet, handsome great room with bar, three fireplaces, and superb kitchen with 2 islands are some of the many outstanding quality features. A mirrored workout area on the third level and walk-out lower level with game room, recreation room, baths and 2 wine cellars are added amenities. While relaxing on the spacious stone terrace, enjoy the views of the beautiful perennial gardens, freeform pool and spa. A 4-car finished garage with custom built-ins and amazing detailed woodwork completes this 4.98-acre private estate.Take advantage of this rare opportunity to live in luxury in this highly sought after location.
Last checked:
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Last updated Apr 25, 2025
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MLS# 3958961 —
The Building
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Construction Date/Year Built:Renovated
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Construction Date/Year Built:1989
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Renovated Year:2006
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Style:Colonial, Custom Home
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Primary Style:Colonial
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Roof Description:Metal, Wood Shingle
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Exterior Description:Stone, Wood Shingle
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Basement:Yes
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Handicap Modified:No
Interior
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Interior Features:Bar-Wet, Beam Ceilings, Blinds, Carbon Monoxide Detector, Cedar Closets, High Ceilings, Smoke Detector, Walk-In Closet
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Flooring:Stone, Tile, Wood
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# of Rooms:22
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Level 1 Rooms:Breakfast Room, Den, Dining Room, Entrance Vestibule, Foyer, Great Room, Kitchen, Living Room, Office, Pantry, Powder Room
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Level 2 Rooms:4 Or More Bedrooms, Bath Main, Bath(s) Other, Family Room, Laundry Room
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Level 3 Rooms:Exercise Room, Storage Room
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Kitchen Level:First
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Kitchen Area:Center Island, Eat-In Kitchen, See Remarks, Separate Dining Area
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Living Room Level:First
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Dining Room Level:First
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Dining Area:Formal Dining Room
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Family Room Level:First
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Basement Level Rooms:Bath(s) Other, Laundry Room, Powder Room, Rec Room, Storage Room, Walkout
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Basement Description:Finished, French Drain, Full, Walkout
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Other Room 1 Level:Second
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Other Room 1:Bedroom
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Other Room 2 Level:First
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Other Room 2:Office
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Other Room 3 Level:Third
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Other Room 3:Exercise Room
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Other Room 4 Level:First
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Other Level Rooms:Additional Bathroom, Additional Bedroom
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# of Fireplaces:3
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Fireplace Description:Bedroom 1, Dining Room, Gas Fireplace, Great Room, Wood Burning
Room Dimensions
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Living Room Dimensions:19x15
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Kitchen Dimensions:28x16
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Dining Room Dimensions:28x15
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Bedroom 1 Dimensions:28x19
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Bedroom 2 Dimensions:15 Sqft
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Bedroom 3 Dimensions:21x13
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Bedroom 4 Dimensions:21x13
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Other Room 1 Dimensions:15x14
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Other Room 2 Dimensions:17x16
Financial & Terms
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Possession:POT
Location
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Directions:From RT 24 (Main St. in Mendham) to Hilltop Rd., becomes Bernardsville Rd. to left on County Line Rd. (private Rd.), house on left.
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Latitude:40.75141
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Longitude:-74.58864
The Property
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Property Subtype:Single Family
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Approx Lot Size:4 Sqft
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Lot Description:Level Lot, Open Lot, Private Road
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Approx SqFt:9,282 Sqft
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Total Acres:4 Sqft
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Lot Identifier:35
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Zoning:Residential
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Exterior Features:Barbeque, Patio, Storage Shed, Thermal Windows/Doors, Underground Lawn Sprinkler
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Exclusions:ASK AGENT
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Easements:Yes
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Easement Description:Road/driveway
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Farm Assessment:No
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Assessment Land:798000
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Assess Amount Land Tax:*
Listing Agent
- Contact info:
- Agent phone:
- (973) 543-2552
- Office phone:
- (973) 543-2552
Taxes
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Tax ID:*
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Tax ID For Property:2318-02401-0000-00035-0000-
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Tax Year:2024
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Tax Year:*
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Tax Rate:*
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Tax Rate Year:2024
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Tax Rate Amount:2.460
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Tax Amount:$54,120
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Tax Amount:$*
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Lot ID Tax:*
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Lot Size Tax:*
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Acres Tax:$*
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Block ID Tax:*
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City Tax:$*
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City Code Tax:*
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County Tax:$*
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County Code Tax:*
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Zip Code Tax:*
Beds
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# of Bedrooms:5
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Master Bedroom Description:Dressing Room, Fireplace, Full Bath, Sitting Room, Walk-In Closet
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Bedroom 1 Level:Second
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Bedroom 2 Level:Second
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Bedroom 3 Level:Second
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Bedroom 4 Level:Second
Baths
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# of Baths:6.40
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# of Full Baths:6
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# of Half Baths:4
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Master Bath Features:Soaking Tub, Stall Shower
Heating & Cooling
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Cooling:Ceiling Fan, Central Air, Multi-Zone Cooling
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Heating:Forced Hot Air, Multi-Zone
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Water Heater:Gas
Utilities
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Utilities:Electric, Gas-Natural
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Water:Well
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Fuel Type:Gas-Natural
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Sewer:Septic 5+ Bedroom Town Verified
Appliances
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Appliances:Central Vacuum, Dishwasher, Dryer, Freezer-Freestanding, Generator-Built-In, Kitchen Exhaust Fan, Microwave Oven, Range/Oven-Gas, Refrigerator, See Remarks, Washer, Water Softener-Own, Wine Refrigerator
Schools
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Grade School:Hilltop
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Middle Or Junior School:MT.View
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High School:W.M.Mendham
The Community
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Community Living:No
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Services:Cable TV, Garbage Extra Charge
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Pool:Yes
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Pool Description:Heated, In-Ground Pool, Outdoor Pool
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Assessment Total:2200000
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Assessment Total Tax:*
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Assessment Bldg:1402000
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Assess Amount Building Tax:*
Parking
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# of Garage Spaces:4
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Garage Description:Attached Garage, Built-In Garage, Finished Garage, Garage Door Opener, See Remarks
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Parking/Driveway Description:Additional Parking, Blacktop, Paver Block
Extra Units
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In-Law Suite:Yes
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In-Law Suite Description:Bedroom 1, Full Bath, Other
Monthly cost estimate

Asking price
$3,800,000
Expense | Monthly cost |
---|---|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$20,347
|
Taxes | N/A |
Insurance | $1,045 |
Utilities | $571 See report |
Total | $21,963/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
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4/25/25
Apr 25, 2025
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Coming Soon | GSMLS | $3,800,000 | |
3/3/22
Mar 3, 2022
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Listed / Active | GSMLS |