The approach to 18 Cornerstone Drive makes an impression before you ever reach the front door. A long paved driveway winds through 1.36 acres of beautifully maintained grounds, opening to a classic Colonial framed by mature landscaping and a welcoming covered front porch. Inside, generous living spaces unfold across three finished levels, offering room to gather, entertain, work, and unwind. The heart of the home is the impressive great room with soaring ceilings and a wood burning fireplace, while the dining room, kitchen, and dedicated office add versatility to the main level. Upstairs, the primary suite becomes a retreat of its own with a private bath featuring a soaking tub and stall shower, plus exclusive access to a massive loft with closet space overlooking the great room below. Three additional bedrooms complete the level. The finished walkout basement adds a den, recreation room, and full bath. Outdoors, a two tier Trex deck creates an inviting setting for dining and entertaining, overlooking the level, fenced backyard and expansive grounds. From mornings on the front porch to evenings by the fire or gatherings on the deck, this home offers spaces designed to be enjoyed in every season.
Active
$750,000
18 Cornerstone Dr, Allamuchy Twp., NJ 07840
4beds
--sqft
Single Family Residence
Built in 2001
1.36 Acres Lot
$743,200 Zestimate®
$--/sqft
$-- HOA
What's special
- 15 days
- 1,229
- 59
Zillow last checked:
Listing updated:
Listed by:
John Schlaffer 973-726-0088,
Keller Williams Integrity
Source: GSMLS,MLS#: 4057429
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Primary bedroom
- Description: Full Bath, Walk-In Closet
Bedroom 1
- Level: Second
- Area: 266
- Dimensions: 14 x 19
Bedroom 2
- Level: Second
- Area: 143
- Dimensions: 11 x 13
Bedroom 3
- Level: Second
- Area: 195
- Dimensions: 13 x 15
Bedroom 4
- Level: Second
- Area: 130
- Dimensions: 13 x 10
Primary bathroom
- Features: Soaking Tub, Stall Shower
Dining room
- Features: Formal Dining Room
- Level: First
- Area: 204
- Dimensions: 12 x 17
Family room
- Level: First
- Area: 208
- Dimensions: 13 x 16
Kitchen
- Features: Eat-in Kitchen, Pantry
- Level: First
- Area: 195
- Dimensions: 13 x 15
Living room
- Level: First
- Area: 308
- Dimensions: 22 x 14
Basement
- Features: Bath(s) Other, Den, Rec Room, Walkout
Heating
- Forced Air, Gas-Propane Leased, Solar-Leased
Cooling
- Central Air
Appliances
- Included: Carbon Monoxide Detector, Dryer, Microwave, Range/Oven-Gas, Refrigerator, Washer, Water Softener Owned, Electric Water Heater
Features
- Office
- Flooring: Carpet, Laminate, Tile, Wood
- Basement: Yes,Finished,Full,Walk-Out Access,Sump Pump
- Number of fireplaces: 1
- Fireplace features: Living Room, Wood Burning
Property
Parking
- Total spaces: 6
- Parking features: 1 Car Width, 2 Car Width, Asphalt, Attached Garage, Oversized
- Attached garage spaces: 2
- Uncovered spaces: 6
Features
- Patio & porch: Deck
Lot
- Size: 1.36 Acres
- Dimensions: 1.36 ACRES
- Features: Corner Lot
Details
- Parcel number: 3001008020000000120008
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence
Materials
- Vinyl Siding
- Roof: Asphalt Shingle
Condition
- Year built: 2001
Utilities & green energy
- Gas: Gas-Propane
- Sewer: Private Sewer, Septic Tank
- Water: Well
- Utilities for property: Electricity Connected, Propane
Community & HOA
Community
- Security: Carbon Monoxide Detector
Location
- Region: Hackettstown
Financial & listing details
- Tax assessed value: $428,000
- Annual tax amount: $14,035
- Date on market: 10/10/2026
- Ownership type: Fee Simple
- Electric utility on property: Yes
Estimated market value
$743,200
$706,000 - $780,000
$4,834/mo
Price history
| Date | Event | Price |
|---|---|---|
| 10/10/2026 | Listed for sale | $750,000+85.9% |
Source:  GSMLS #4057429 Report a problem | ||
| 10/15/2001 | Sold | $403,481 |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | $14,035 +2.2% | $428,000 |
| 2025 | $13,739 | $428,000 |
| 2024 | $13,739 +1.3% | $428,000 |
| 2023 | $13,562 +4.3% | $428,000 |
| 2022 | $13,001 +0.9% | $428,000 |
| 2021 | $12,887 +0.6% | $428,000 |
| 2020 | $12,809 +1.2% | $428,000 |
| 2019 | $12,651 -1.1% | $428,000 |
| 2018 | $12,794 +0.9% | $428,000 |
| 2017 | $12,686 +1.5% | $428,000 |
| 2016 | $12,501 +4.5% | $428,000 |
| 2015 | $11,966 +5% | $428,000 |
| 2014 | $11,392 +3.8% | $428,000 |
| 2013 | $10,974 +2.4% | $428,000 -4.3% |
| 2012 | $10,718 -2% | $447,200 |
| 2011 | $10,932 +2.1% | $447,200 |
| 2010 | $10,711 +5.8% | $447,200 |
| 2009 | $10,126 +6.8% | $447,200 |
| 2008 | $9,482 +6.1% | $447,200 |
| 2007 | $8,940 +2.1% | $447,200 |
| 2006 | $8,754 +12.1% | $447,200 |
| 2005 | $7,809 -6.5% | $447,200 |
| 2004 | $8,352 | $447,200 |
| 2003 | -- | $447,200 +613.2% |
| 2002 | -- | $62,700 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: 07840
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