42 Washington Valley Rd | Mendham Twp.

$1,299,000 | 4 Beds | 4 Baths (3 Full, 1 Half) | 2,922 Sq. Ft.

Magnificent expanded Custom Cape located on the coveted & commuter-friendly east side of Mendham Township - a remarkable, one-of-a-kind home that has a modern, sophisticated floor plan that must be experienced in person to genuinely appreciate its superb features & outstanding craftsmanship. 12 rooms including 4 airy bedrooms, 3 full baths, powder room, 2 fireplaces, expanded designer kitchen with butler's pantry, spacious breakfast room, open floor plan family room, resplendent sunroom with dry bar, tasteful dining room, handsome home office, handy mudroom, & 3 bedrooms on the second floor - each with en suite full bath access, bright windows, & generous closets- plus a lovely cloistered, and well-appointed primary bedroom suite. An absolutely superb floor plan comprising over 2,920 sq. ft. of commodious living space on the upper two floors alone, plus a sprawling finished lower level with walk-out, fourth bedroom, full bath, recreation area, laundry room, & abundant closet space making it a perfect guest, in-law, or au pair suite. Hardwood flooring, gorgeous built-ins, & move-in ready. Outdoor features include a delightful rocking chair rear porch, expansive paver patio, sparkling in-ground salt water swimming pool, formal English garden, 2-car attached garage w EV charging station & loft, plus a 2-car detached garage w finished loft space, & a 2.88-acre showcase property w pancake flat play areas. Verizon FIOS, 17-kW whole house generator & Hardie-Plank siding. GSMLS 4012521

Directions to property: Mendham Rd to Tingley to Washington Valley Rd to #42 on left or Mendham Rd to Washington Valley Rd t

MLS Listing ID: 
GSMLS 4012521
Listing Status
Status of the Listing.
Listing Status: 
Active
Listing Status (Local): 
Active
Listing Status Accepting Offers: 
1
Community Information
Elementary: 
Mendham
Middle: 
Mendham
High: 
Mendham
Subdivision: 
Washington Valley
Building Details
Details about the building on a property.
Architectural Style: 
Cape Cod
Year Built: 
1947
New Construction: 
0
Living Area: 
2,922
Basement: 
Bilco-Style Door, Finished
Interior: 
Bar-Wet, Blinds, Carbon Monoxide Detector, Fire Extinguisher, High Ceilings, Skylight, Smoke Detector, Walk-In Closet
Fireplaces: 
Yes
Construction
Roof: 
Asphalt Shingle
Exterior Features: 
Metal Fence, Open Porch(es), Patio, Storage Shed, Thermal Windows/Doors, Wood Fence
DisabilityFeatures: 
No
Energy Information: 
Electric, Gas-Propane
Porch: 
No
Deck: 
No
Room Details
Details about the rooms in the building.
Total Rooms: 
12
Total Bedrooms: 
4
Total Bathrooms: 
4
Total Full-Bathrooms: 
3
Total Half-Bathrooms: 
1
Master Bedroom 
Dimensions: 
18x17 
Level: 
Second
Second Bedroom 
Dimensions: 
13x13 
Level: 
First
Third Bedroom 
Dimensions: 
12x14 
Level: 
Second
Fourth Bedroom 
Dimensions: 
15x13 
Level: 
Basement
Dining Room 
Dimensions: 
13x23 
Level: 
First
Family Room 
Dimensions: 
18x19 
Level: 
First
Kitchen 
Dimensions: 
14x24 
Level: 
First
Living Room 
Dimensions: 
15x14 
Level: 
Basement
Den 
Dimensions: 
15x10 
Level: 
First
Other One 
Dimensions: 
11x12 
Level: 
First
Other Two 
Dimensions: 
20x14 
Level: 
First
Other Three 
Dimensions: 
18x22 
Level: 
Second
In-Law Suite 
Master Bathroom 
Level: 
Second
Utilities
Information about utilities available on the property.
Heating System: 
1 Unit, Forced Hot Air, Multi-Zone
Heating System Fuel: 
Oil Tank Above Ground - Inside
Cooling System: 
2 Units, Central Air, Multi-Zone Cooling
Water Heating System: 
Electric
Water Source: 
Well
Sewer: 
Septic 4 Bedroom Town Verified
Lot/Land Details
Details about the lots and land features included on the property.
Acres: 
2.88
Lot Size (Dimensions): 
2.090 + .79 combined
Waterfront: 
0
Lot Features
Driveway: 
2 Car Width, Additional Parking, Blacktop
Parking Type: 
2 Car Width, Additional Parking, Blacktop
Total Parking Spaces: 
0
Garage: 
Attached Garage, Detached Garage, Garage Door Opener
Pool: 
Yes
Fence: 
Yes
Public Record
Parcel Number: 
2319-00126-0000-00016-0000-
Lot Number: 
16
Annual Tax: 
$16,869.00
Property Zoning: 
residential
Listing Dates
Dates involved in the transaction.
Listing Entry Date/Time: 
3/4/2026
Contract Details
Details about the listing contract.
Exclusions: 
1 of 2 electric car chargers
Possession: 
POT
Listing Participants
Participants (agents, offices, etc.) in the transaction.
Listing Office Name: 
WEICHERT REALTORS