Skip main navigation
Sold for $6,410,000 on 10/01/25
  • $6,410,000

    280 Round Hill Road, Greenwich, CT 06831

    6beds
    10,036sqft
    Single Family Residence
    Built in 1994
    2.51 Acres Lot
    $6,474,700 Zestimate®
    $639/sqft
    $7,590 Estimated rent

    Home value

    $6,474,700

    $5.83M - $7.19M

    $7,590/mo

    Zestimate® history
    Loading...

    Owner options

    List your home for rent

    $7,590/mo

    Rent Zestimate®

    Find your next renter with Zillow Rental Manager. Plus, with online applications, you can quickly screen prospective tenants – for free.

    Learn more

    $7,590/mo

    Rent Zestimate®

    Refinance and save

    $36,127/mo

    Est. payment

    Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.

    See today's rates

    $36,127/mo

    Est. payment

    Explore your selling options

    Work with a Zillow partner agent

    Leverage their expertise and Zillow's premium Showcase listings to get your home seen by more buyers.

    Get started

    List with your own agent

    Get your home in front of millions of buyers by listing it on Zillow.

    Learn how to do it

    Sell it yourself

    Take full control of how buyers see your home on Zillow by listing For Sale by Owner (FSBO).

    List your home

    What's special

    Ideally sited on more than two acres just minutes from town, this timeless and light-filled colonial offers the perfect blend of classic elegance and modern luxury. Graciously scaled rooms begin with an expansive foyer that provides a stunning front-to-back view, setting the tone for the rest of the home. The main residence features a private gym, home theater, custom 1,000-bottle wine cellar, six en suite bedrooms, luxurious primary suite with two full baths and sitting room. The first-floor office, complete with full bath, offers flexibility as a guest suite. Thoughtful amenities include laundry rooms on both the first and second floors, an enviable pantry, and a spacious mudroom. Outside, a gunite pool is perfectly positioned just beyond the expansive terrace, surrounded by mature, professionally designed perennial gardens. Completing the estate is a charming guest house with two bedrooms one ideal as a home office, offering the ultimate in convenience and privacy. There are 2 additional bedrooms, a full bath, living room, dining area and kitchen in the Guest House.

    Zillow last checked: 8 hours ago

    Listing updated: October 07, 2025 at 07:40am

    Listed by:

    Susan M. Holey 203-969-4320,

    Sotheby's International Realty 203-869-4343

    Bought with:

    Helene M. Barre, RES.0033628

    Sotheby's International Realty

    Source: Smart MLS,MLS#: 24098719MLS Logo

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 6
    • Bathrooms: 11
    • Full bathrooms: 8
    • 1/2 bathrooms: 3
    Primary bedroom
    • Features: High Ceilings, Fireplace, Full Bath, Tub w/Shower, Walk-In Closet(s), Hardwood Floor
    • Level: Upper
    Bedroom
    • Features: High Ceilings, Built-in Features, Full Bath, Walk-In Closet(s), Hardwood Floor
    • Level: Upper
    Bedroom
    • Features: Remodeled, High Ceilings, Balcony/Deck, Full Bath, Walk-In Closet(s), Hardwood Floor
    • Level: Upper
    Bedroom
    • Features: Remodeled, High Ceilings, Fireplace, Full Bath, Walk-In Closet(s), Hardwood Floor
    • Level: Upper
    Bedroom
    • Level: Upper
    Bedroom
    • Features: High Ceilings, Hardwood Floor
    • Level: Upper
    Bathroom
    • Level: Lower
    Bathroom
    • Features: High Ceilings, Tub w/Shower, Tile Floor
    • Level: Upper
    Bathroom
    • Features: High Ceilings, Stall Shower, Tile Floor
    • Level: Upper
    Bathroom
    • Features: High Ceilings, Tile Floor
    • Level: Upper
    Bathroom
    • Level: Main
    Bathroom
    • Level: Main
    Dining room
    • Features: High Ceilings, Fireplace, Hardwood Floor
    • Level: Main
    Family room
    • Features: High Ceilings, Bookcases, Built-in Features, Fireplace, French Doors, Hardwood Floor
    • Level: Main
    Kitchen
    • Features: High Ceilings, Built-in Features, Dining Area, Kitchen Island, Pantry, Hardwood Floor
    • Level: Main
    Library
    • Features: High Ceilings, Bookcases, Hardwood Floor
    • Level: Main
    Living room
    • Features: High Ceilings, Hardwood Floor
    • Level: Main
    Media room
    • Level: Other
    Office
    • Features: High Ceilings, Built-in Features, Full Bath, Hardwood Floor
    • Level: Main
    Heating
    • Hydro Air, Propane
    Cooling
    • Central Air
    Appliances
    • Included: Gas Range, Microwave, Subzero, Ice Maker, Dishwasher, Washer, Dryer, Water Heater
    • Laundry: Main Level, Upper Level, Mud Room
    Features
    • Basement: Full
    • Attic: Walk-up
    • Number of fireplaces: 5
    Interior area
    • Total structure area: 10,036
    • Total interior livable area: 10,036 sqft
    • Finished area above ground: 10,036

    Property

    Parking
    • Total spaces: 5
    • Parking features: Attached, Detached, Garage Door Opener
    • Attached garage spaces: 5
    Features
    • Patio & porch: Terrace, Deck, Patio
    • Exterior features: Balcony, Stone Wall, Underground Sprinkler
    • Has private pool: Yes
    • Pool features: Heated, In Ground
    Lot
    • Size: 2.51 Acres
    • Features: Level
    Details
    • Additional structures: Shed(s), Guest House
    • Parcel number: 1845448
    • Zoning: R-2

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Colonial
    • Property subtype: Single Family Residence
    Materials
    • Clapboard
    • Foundation: Concrete Perimeter
    • Roof: Wood
    Condition
    • New construction: No
    • Year built: 1994

    Utilities & green energy

    • Sewer: Septic Tank
    • Water: Public
    • Utilities for property: Cable Available

    Community & neighborhood

    Community
    • Community features: Golf, Library, Private School(s), Pool
    Location
    • Region: Greenwich
    • Subdivision: Round Hill

    Price history

    DateEventPrice
    10/1/2025Sold$6,410,000-4.3%$639/sqft
    Source: Smart MLS #24098719
    7/29/2025Pending sale$6,700,000$668/sqft
    Source: Greenwich MLS, Inc. #122832
    5/27/2025Listed for sale$6,700,000+30%$668/sqft
    Source: Smart MLS #24098719
    8/5/2022Sold$5,155,000+14.7%$514/sqft
    Source: Greenwich MLS, Inc. #115793
    5/16/2022Listed for sale$4,495,000-0.1%$448/sqft
    Source: Greenwich MLS, Inc. #115793

    Public tax history

    YearProperty taxesTax assessment
    2026$43,854 +2.8%$3,642,380
    2025$42,652 +2.8%$3,642,380
    2024$41,487 +1%$3,642,380

    Find assessor info on the county website

    Neighborhood: 06831

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • Elementary: Parkway
    • Middle: Western
    • High: Greenwich

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

    Sell for more on Zillow
    Get a free Zillow Showcase℠ listing and you could sell for .
    $6,474,700
    2% more+ $129K
    With Zillow Showcase(estimated)
    $6,604,194