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For sale
  • $19,500,000

    11 Langhorne Ln, Greenwich, CT 06831

    8beds
    26,454sqft
    : 
    Residential, Single Family Residence
    Built in 2005
    8.79 Acres Lot
    $18,046,300 Zestimate®
    $737/sqft
    $-- HOA

    What's special

    Indoor poolWood-burning fireplacesSpectacular outdoor poolStaff quartersStone terracesElegant foyerSecluded acres
    Famed architect Boris Baranovich designed this extraordinary stone Georgian estate of 26,000+/- square feet on 8.788 secluded acres off of Round Hill Road. Exquisitely executed, this stately manor home offers eight bedrooms and twelve full and five half bathrooms throughout four levels of living space. Mature trees and lush lawn surround this exceptional estate with two gated entrances: one to the formal parking court and one for service/deliveries. Beautifully appointed interiors feature eight wood-burning fireplaces in the elegant foyer, living and dining rooms, family room, sunroom, library, and primary suite. There are six upper-level bedrooms in addition to the primary suite, plus a private guest apartment. The third floor is comprised of staff quarters, a playroom and storage. Designed for entertaining, the lower level features a regulation squash court, a billiard/game room, professional 12-seat home theater, gym, climate-controlled wine cellar, kitchenette, full spa bathroom and dramatic indoor pool and Japanese soaking tub. There are two attached garages adjacent to the mudroom. Connected by a breezeway is a detached garage with two additional bays and two car lifts. Bonus office with separate private entrance and private power room. A guest apartment with private entrance offers an en-suite bedroom, kitchenette and sitting room. Overlooking the gorgeous backyard, French doors open to the rear stone terraces. Perfect for indoor/outdoor entertaining is a pergola-covered outdoor dining area with built-in grill and firepit. The sunroom and "pool cabana" rooms open to the spectacular outdoor pool with automatic cover. A extraordinary opportunity to buy an irreplaceable Greenwich estate offering luxurious, resort-style living in the heart of back country.
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    Zillow last checked: 7 hours ago

    Listing updated: July 16, 2025 at 06:45am

    Listed by:

    Leslie McElwreath 917-539-3654,

    Sotheby's International Realty

    Source: Greenwich MLS, Inc.,MLS#: 122878MLS Logo
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    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 8
    • Bathrooms: 17
    • Full bathrooms: 12
    • 1/2 bathrooms: 5
    Heating
    • Forced Air, Oil
    Cooling
    • Central Air
    Appliances
    • Laundry: Laundry Room
    Features
    • Sep Shower, Kitchen Island, Back Stairs, Bookcases
    • Basement: Finished,Full
    • Number of fireplaces: 8
    Interior area
    • Total structure area: 26,454
    • Total interior livable area: 26,454 sqft
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    Property

    Parking
    • Total spaces: 6
    • Parking features: Electric Gate
    • Garage spaces: 6
    Features
    • Patio & porch: Terrace
    • Exterior features: Balcony
    • Has private pool: Yes
    Lot
    • Size: 8.79 Acres
    • Features: Cul-De-Sac, Level
    Details
    • Parcel number: 103192
    • Zoning: RA-4
    • Other equipment: Generator

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Georgian Colonial
    • Property subtype: Residential, Single Family Residence
    Materials
    • Stone
    • Roof: Slate
    Condition
    • Year built: 2005
    • Major remodel year: 2012

    Utilities & green energy

    • Sewer: Septic Tank
    • Water: Well
    • Utilities for property: Propane

    Community & HOA

    Community
    • Security: Security System
    Location
    • Region: Greenwich

    Financial & listing details

    • Price per square foot: $737/sqft
    • Tax assessed value: $10,474,660
    • Annual tax amount: $126,125
    • Date on market: 5/28/2025
    • Inclusions: All Kitchen Applncs
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