4 County Line Rd | Mendham Boro

$3,800,000 | 5 Beds | 10 Baths (6 Full, 4 Half) | 9,282 Sq. Ft.

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. Peter Dorne, Architect and builder for expansions and renovations. GSMLS 3958961

Directions to property: From RT 24 (Main St. in Mendham) to Hilltop Rd., becomes Bernardsville Rd. to left on County Line Rd

MLS Listing ID: 
GSMLS 3958961
Listing Status
Status of the Listing.
Listing Status: 
Active
Listing Status (Local): 
Active
Listing Status Accepting Offers: 
1
Community Information
Elementary: 
Hilltop
Middle: 
MT.View
High: 
W.M.Mendha
Building Details
Details about the building on a property.
Architectural Style: 
Colonial
Year Built: 
1989
New Construction: 
0
Living Area: 
9,282
Basement: 
Finished, French Drain, Full, Walkout
Interior: 
Bar-Wet, Beam Ceilings, Blinds, Carbon Monoxide Detector, Cedar Closets, High Ceilings, Smoke Detector, Walk-In Closet
Fireplaces: 
Yes
Construction
Roof: 
Metal, Wood Shingle
Exterior: 
Stone, Wood Shingle
Exterior Features: 
Barbeque, Patio, Storage Shed, Thermal Windows/Doors, Underground Lawn Sprinkler
DisabilityFeatures: 
No
Energy Information: 
Electric, Gas-Natural
Porch: 
No
Deck: 
No
Room Details
Details about the rooms in the building.
Total Rooms: 
22
Total Bedrooms: 
5
Total Bathrooms: 
10
Total Full-Bathrooms: 
6
Total Half-Bathrooms: 
4
Master Bedroom 
Dimensions: 
28x19 
Level: 
Second
Second Bedroom 
Dimensions: 
15x14 
Level: 
Second
Third Bedroom 
Dimensions: 
21x13 
Level: 
Second
Fourth Bedroom 
Dimensions: 
21x13 
Level: 
Second
Dining Room 
Dimensions: 
28x15 
Level: 
First
Family Room 
Dimensions: 
37x24 
Level: 
First
Kitchen 
Dimensions: 
28x16 
Level: 
First
Living Room 
Dimensions: 
19x15 
Level: 
First
Den 
Dimensions: 
21x12 
Level: 
First
Other One 
Dimensions: 
21x14 
Level: 
Second
Other Two 
Dimensions: 
17x16 
Level: 
First
Other Four 
Dimensions: 
29x17 
Level: 
Second
In-Law Suite 
Master Bathroom 
Level: 
Second
Utilities
Information about utilities available on the property.
Heating System: 
Forced Hot Air, Multi-Zone
Heating System Fuel: 
Gas-Natural
Cooling System: 
Ceiling Fan, Central Air, Multi-Zone Cooling
Water Heating System: 
Gas
Water Source: 
Well
Sewer: 
Septic 5+ Bedroom Town Verified
Lot/Land Details
Details about the lots and land features included on the property.
Acres: 
4.98
Lot Size (Dimensions): 
4.980 AC
Waterfront: 
0
Lot Features
Driveway: 
Additional Parking, Blacktop, Paver Block
Parking Type: 
Additional Parking, Blacktop, Paver Block
Total Parking Spaces: 
0
Garage: 
Attached Garage, Built-In Garage, Finished Garage, Garage Door Opener, See Remarks
Pool: 
Yes
Fence: 
No
Public Record
Parcel Number: 
2318-02401-0000-00035-0000-
Lot Number: 
35
Annual Tax: 
$54,120.00
Property Zoning: 
Residential
Listing Dates
Dates involved in the transaction.
Listing Entry Date/Time: 
4/25/2025
Contract Details
Details about the listing contract.
Exclusions: 
ASK AGENT
Possession: 
POT
Listing Participants
Participants (agents, offices, etc.) in the transaction.
Listing Office Name: 
COLDWELL BANKER REALTY