Skip main navigation
Active
    • $1,400,000

    21 Round Top Rd, Warren Twp., NJ 07059

    5beds
    4,075sqft
    : 
    $8,891/mo
    Get pre-qualified
    Single Family Residence
    Built in 1990
    2.3 Acres Lot
    $-- Zestimate®
    $344/sqft
    $-- HOA

    What's special

    Welcome to this custom Colonial offering approximately 4,075 sq. ft. of living space on 2.3 private acres in one of Warren Township's most desirable locations. Lovingly designed and built by its original owner, this thoughtfully planned home was truly ahead of its time. A grand tiled foyer welcomes you to a versatile floor plan featuring a formal living room with fireplace (also ideal as a first-floor bedroom), formal dining room, spacious great room with fireplace, den/office, gourmet kitchen with newer cabinetry and state-of-the-art appliances, full bath, powder room, and laundry room. The second level offers a primary suite with its own HVAC zone, gas fireplace, spa-like bath with soaking tub, separate shower and dual vanities, plus four additional spacious bedrooms and a full hallway bath. One bedroom is tucked within its own private wing and features an ensuite bath, private staircase to the main level, separate exterior entrance, and access to the second-floor hallway. An open loft overlooking the dramatic great room provides additional living space. The full unfinished basement features high ceilings, a full bath, interior access, and direct access to the oversized attached three-car garage. Outside, enjoy a spacious deck, slate patio, circular driveway, open lawn, wooded surroundings, and exceptional privacy. Move-in ready with opportunity to personalize. Convenient to parks and trails, shopping, dining, and major highways.
    10 days
    |
    1,801
    |
    107
    |

    Likely to sell faster than

    Zillow last checked:

    Listing updated:

    Listed by:

    Wendy Burney 908-922-9995,

    Exp Realty, Llc

    Source: GSMLS,MLS#: 4041938MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 6
      • Full bathrooms: 5
      • 1/2 bathrooms: 1
      Primary bedroom
      • Description: Fireplace, Full Bath, Walk-In Closet
      Bedroom 1
      • Level: Second
      • Area: 345
      • Dimensions: 23 x 15
      Bedroom 2
      • Level: Second
      • Area: 221
      • Dimensions: 17 x 13
      Bedroom 3
      • Level: Second
      • Area: 195
      • Dimensions: 15 x 13
      Bedroom 4
      • Level: Second
      • Area: 195
      • Dimensions: 15 x 13
      Primary bathroom
      • Features: Bidet, Soaking Tub, Stall Shower And Tub
      Dining room
      • Features: Formal Dining Room
      • Level: First
      • Area: 255
      • Dimensions: 17 x 15
      Family room
      • Level: First
      • Area: 493
      • Dimensions: 29 x 17
      Kitchen
      • Features: Kitchen Island, Eat-in Kitchen, Separate Dining Area
      • Level: First
      • Area: 390
      • Dimensions: 26 x 15
      Living room
      • Level: First
      • Area: 368
      • Dimensions: 23 x 16
      Basement
      • Features: InsdEntr, OutEntrn, RecRoom, SeeRem, Utility
      Heating
      • Forced Air, Zoned, Natural Gas
      Cooling
      • Central Air, Zoned
      Appliances
      • Included: Dishwasher, Dryer, Range/Oven-Gas, Refrigerator, See Remarks, Washer, Wine Refrigerator
      • Laundry: Laundry Room
      Features
      • Cathedral Ceiling(s), High Ceilings, Bedroom, Loft, Rec Room
      • Flooring: Carpet, Tile, Wood
      • Windows: Skylight(s)
      • Basement: Yes,Full,Unfinished,Walk-Out Access,Sump Pump
      • Number of fireplaces: 3
      • Fireplace features: Bedroom 1, Gas, Great Room, Living Room, Wood Burning, Master Bedroom
      Interior area
      • Total structure area: 4,075
      • Total interior livable area: 4,075 sqft

      Property

      Parking
      • Total spaces: 3
      • Parking features: Additional Parking, Asphalt, Circular Driveway
      • Garage spaces: 3
      Features
      • Patio & porch: Deck, Patio
      • Exterior features: Underground Lawn Sprinkler
      Lot
      • Size: 2.3 Acres
      • Dimensions: 2.30
      • Features: Level
      Details
      • Parcel number: 2720000270000000310007
      • Zoning description: residential

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Colonial
      • Property subtype: Single Family Residence
      Materials
      • Wood Shingle
      • Roof: Asphalt Shingle
      Condition
      • Year built: 1990

      Utilities & green energy

      • Gas: Gas-Natural
      • Sewer: Public Sewer
      • Water: Public
      • Utilities for property: Natural Gas Connected

      Community & HOA

      Location
      • Region: Warren

      Financial & listing details

      • Price per square foot: $344/sqft
      • Tax assessed value: $1,177,100
      • Annual tax amount: $19,385
      • Date on market: 7/26/2026
      • Exclusions: Personal property; some items may be available for sale
      • Ownership type: Fee Simple

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        7/26/2026Listed for sale$1,400,000$344/sqft
        Source: GSMLS #4041938 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$20,337 +8.4%$1,106,500 +8.4%
        2024$18,755 +1.8%$1,020,400 +7.3%
        2023$18,427 +0.9%$950,800 +4.6%
        2022$18,261 $909,100 +3.4%
        2021-- $879,600 +1.2%
        2020$17,606 +4.3%$868,800 +0.6%
        2019$16,886 $863,900 +1.7%
        2018$16,886 +1.4%$849,800 +1.3%
        2017$16,657 +1.4%$838,600 +1.2%
        2016$16,421 +4.4%$828,600 +3.3%
        2015$15,724 +3.1%$801,800 +3.9%
        2014$15,257 +2%$771,900 +2%
        2013$14,958 +0.7%$756,400 +0.8%
        2012$14,858 -0.8%$750,500 +1.4%
        2011$14,976 -3.4%$740,300 +1.1%
        2010$15,499 -1.7%$732,300 -14%
        2009$15,761 $851,100 -8%
        2008-- $925,500 -1%
        2007-- $935,300 +8.2%
        2006-- $864,800 +5.1%
        2005-- $822,800 +15.3%
        2004$12,135 $713,800
        2003-- $713,800 +12.2%
        2002-- $636,300 +6.8%
        2001-- $596,000
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
        See how much you could borrow to make a competitive offer.
        Get pre-qualified

        Climate risks

        Neighborhood: 07059

        Getting around

        2 / 100
        Car-Dependent
        22 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Mt Horeb
        • Middle: Middle
        • High: Whrhs

        Source: GSMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

        A local agent can set up tours, give advice and negotiate with sellers.

        A local lender can help you make sure your offer is ready when you are.

        Browse local experts

        Similar homes

              Nearby cities

              Nearby zip codes

              Other Warren Township Topics

                Search
                Updates
                Favorites
                Plan
                Inbox