Skip main navigation
Active
  • $2,800,000

    251 Mountainside Rd, Mendham Twp., NJ 07945

    7beds
    --sqft
    : 
    Loading
    Get pre-qualified
    Single Family Residence
    Built in 1906
    4.3 Acres Lot
    $-- Zestimate®
    $--/sqft
    $-- HOA

    What's special

    Known as "Glenowre," this distinguished 1906 south-facing Tudor estate offered for the first time in 50 years blends historic pedigree with refined modern living. Designed by noted Morristown architect Robert C. Walsh (Morris County Golf Club) for famed engineer Daniel E. Moran, the home reflects a rare level of architectural significance. Set on four private acres and surrounded by the protected beauty of the India Brook Preserve, the property offers exceptional privacy and a true estate setting. Inside, mahogany carved woodwork spans both the first and second floors, while grand-scale public rooms evoke a bygone era of elegance and craftsmanship. A distinctive ante room, leading to the dining room, features wood paneling sourced from a ship's quarters, and a discreet secret door off the receiving room adds a touch of character and intrigue. Sunlit piazzas with walls of windows overlook the preserve, seamlessly connecting indoor and outdoor living. A 2021 kitchen updated balances classic design with modern function, featuring a Wolf gas cooktop, two electric wall ovens, stainless refrigerator/freezer, dishwasher, and a butler's pantry with beverage fridge and wet bar for effortless entertaining. The grounds include a Har-Tru tennis court and a blend of open and wooded landscape of preserved land. Do not miss the opportunity to own a legacy Tudor estate in Mendham with history, character, and enduring appeal.
    32 days
    |
    1,943
    |
    93
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Anne Ferrante 973-214-9841,

    Kl Sotheby's Int'l. Realty

    Source: GSMLS,MLS#: 4027256MLS Logo

    Loading...

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 7
      • Bathrooms: 6
      • Full bathrooms: 4
      • 1/2 bathrooms: 2
      Primary bedroom
      • Description: Dressing Room, Fireplace, Full Bath, Sitting Room, Walk-In Closet
      Bedroom 1
      • Level: Second
      • Area: 320
      • Dimensions: 20 x 16
      Bedroom 2
      • Level: Second
      • Area: 224
      • Dimensions: 16 x 14
      Bedroom 3
      • Level: Second
      • Area: 308
      • Dimensions: 22 x 14
      Bedroom 4
      • Level: Second
      • Area: 208
      • Dimensions: 16 x 13
      Primary bathroom
      • Features: Stall Shower
      Dining room
      • Features: Formal Dining Room
      • Level: First
      • Area: 384
      • Dimensions: 24 x 16
      Kitchen
      • Features: Kitchen Island, Eat-in Kitchen, Pantry, See Remarks
      • Level: First
      • Area: 378
      • Dimensions: 21 x 18
      Living room
      • Level: First
      • Area: 570
      • Dimensions: 30 x 19
      Basement
      • Features: GameRoom, GarEnter, Storage, Utility, Workshop
      Heating
      • Radiators - Hot Water, Natural Gas
      Appliances
      • Included: Carbon Monoxide Detector, Gas Cooktop, Dishwasher, Dryer, Generator-Built-In, Kitchen Exhaust Fan, Microwave, Refrigerator, Wall Oven(s) - Electric, Washer, Wine Refrigerator, Gas Water Heater
      Features
      • Bedroom, Conservatory, Foyer, Game Room
      • Flooring: Tile, Wood
      • Basement: Yes,Partially Finished,Unfinished,Walk-Out Access
      • Number of fireplaces: 11
      • Fireplace features: Bedroom 1, Dining Room, Foyer/Hall, Kitchen, Living Room, Wood Burning, Master Bedroom

      Property

      Parking
      • Total spaces: 5
      • Parking features: Asphalt, Circular Driveway, Attached Garage, Detached Garage
      • Attached garage spaces: 3
      • Uncovered spaces: 5
      Features
      • Patio & porch: Enclosed Porch(es), Patio
      • Exterior features: Tennis Court(s)
      • Has spa: Yes
      • Spa features: Bath
      Lot
      • Size: 4.3 Acres
      • Dimensions: 4.304 AC
      • Features: Backs to Park Land, Open Lot, Wooded
      Details
      • Additional structures: Greenhouse, Outbuilding, Storage Shed
      • Parcel number: 2319001160000000500000
      • Other equipment: Generator-Built-In

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Tudor
      • Property subtype: Single Family Residence
      Materials
      • Stucco, Wood Siding
      • Roof: Slate
      Condition
      • Year built: 1906

      Utilities & green energy

      • Gas: Gas-Natural
      • Sewer: See Remarks
      • Water: Public
      • Utilities for property: Electricity Connected, Natural Gas Connected

      Community & HOA

      Community
      • Features: Billiards Room, Tennis Court(s)
      • Security: Carbon Monoxide Detector
      Location
      • Region: Mendham

      Financial & listing details

      • Tax assessed value: $2,121,800
      • Annual tax amount: $35,233
      • Date on market: 5/16/2026
      • Ownership type: Fee Simple
      • Electric utility on property: Yes

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        5/16/2026Listed for sale$2,800,000
        Source: GSMLS #4027256 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$37,207 +6.6%$1,915,900 +6.6%
        2024$34,919 +0.9%$1,798,100 +8.6%
        2023$34,592 +1.8%$1,655,900 +3%
        2022$33,980 -4%$1,607,400 +0.5%
        2021$35,408 -18.2%$1,600,000 -20.2%
        2020$43,287 +1.9%$2,005,900
        2019$42,465 +2.4%$2,005,900
        2018$41,482 +0.1%$2,005,900
        2017$41,422 +1.9%$2,005,900
        2016$40,660 +2.3%$2,005,900
        2015$39,737 +2.2%$2,005,900
        2014$38,874 +1%$2,005,900
        2013$38,473 +0.9%$2,005,900
        2012$38,132 +0.7%$2,005,900
        2011$37,851 -3.1%$2,005,900
        2010$39,072 +4.8%$2,005,900 -16.4%
        2009$37,296 $2,400,000
        2008-- $2,400,000
        2007-- $2,400,000
        2006-- $2,400,000 +154%
        2005-- $944,900
        2004-- $944,900
        2003-- $944,900
        2002-- $944,900
        2001-- $944,900

        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.

          Climate risks

          Neighborhood: 07945

          Getting around

          3 / 100
          Car-Dependent
          13 / 100
          Somewhat Bikeable

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Mendham
          • Middle: Mendham
          • High: W.m.mendham

          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.

          Browse local experts

          Similar homes

          Skip to the end of the carouselSkip to the beginning of the carousel