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    1 home
      1 home available
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      $5,400,000
      5beds
      7 full, 2 halfbath
      8,603sqft
      0.7acres
      House for Sale

      20 Oak Street, Greenwich, CT 06831

      Listing by: Brown Harris Stevens CT, LLC
      1 - 1 of 1 results
      © 2026 Greenwich Multiple Listing Service, Inc. All Rights Reserved
      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
      Equal opportunity
      Membio
      Greenwich Realtors
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      20 Oak Street, Greenwich, CT 06831
      $5,400,000
      5beds
      7full,2half bath
      8,603sqft
      0.7acres

      20 Oak Street, Greenwich, CT 06831

      House for Sale by Matthew TallettBrown Harris Stevens CT, LLC.

      Data checked -. Listing last updated 9 days ago.
      1. Overview
      2. Details
      3. More 

      Set on a quiet private lane, this 8,600-square-foot residence spans four finished levels with elevator access throughout. A marble entry gallery with soaring ceilings introduces expansive living and entertaining spaces, including a formal dining room with wet bar, chef's kitchen with Viking, Bosch, and Sub-Zero appliances, and a sunlit family room opening to outdoor dining areas. The home offers five en-suite bedrooms with walk-in closets, including a luxurious primary suite with fireplace and spa bath. The finished walkout lower level features a recreation lounge, wine cellar, fitness studio, media space, and full bath. Additional highlights include hardwood floors, multiple fireplaces, private office space, and mature landscaping throughout the property. 5 minutes from Greenwich Avenue. Set on a private lane of just three homes, this expansive residence offers 8,600 square feet of living space across four finished levels, all accessible by elevator. A marble-floored entry gallery with soaring ceilings creates a dramatic first impression, immediately establishing the scale, light, and craftsmanship found throughout the home. The main level is designed for both grand entertaining and comfortable everyday living. A formal living room is framed by expansive wraparound bay windows, filling the space with natural light. Wide pocket doors open to an elegant formal dining room featuring a wet bar. The chef's kitchen is outfitted with high-end appliances, including a Viking six-burner cooktop with grill, dual wall ovens, dual Miele dishwashers, and Sub-Zero refrigeration. A large center island anchors the space and flows seamlessly into a sunlit breakfast area and spacious family room. French doors open to generous outdoor entertaining and dining areas. A wood-burning fireplace enhances the warmth of the main living area. Additional features include a private office with dual workspace capacity and French doors to the outdoors, multiple wet bars, two powder rooms, and hardwood flooring throughout. The bedroom level offers five spacious bedrooms each with en-suite bath and walk in closet. The fifth bedroom is oversized and flexible, suitable as a bonus room, playroom, or studio. The primary suite is a private retreat featuring a third wood-burning fireplace, heated bathroom floors, a BainUltra air-jet soaking tub, oversized shower, private water closet, and extensive custom cabinetry. The walkout lower level is fully finished and designed as a true lifestyle extension of the home. It features a large recreation lounge with wet bar, a dedicated wine room with tasting area, a media space with fireplace, a mirrored fitness studio with TV, and a full bath--creating an ideal setting for both relaxation and entertainment. The top floor provides full-height ceilings and exceptional flexibility, ideal for use as a studio, office, playroom, or additional guest space, complete with a full bath and storage. A two-car polyphasic garage complete the property, which is surrounded by mature landscaping in a serene residential setting just 5 minutes to Greenwich Avenue.

      Details
        Property type
      Residential
        Year built
      2004
        Heating
      Natural Gas, See Remarks, Forced Air
        Cooling
      Central Air
        Garage
      No
        Parking spots
      -
      125038
      MLS ID
      Active
      Status
      05-19-2026
      On market date
        Roof
      Architectural Shngle
        Laundry features
      Laundry Room
        Fireplace
      Yes
        Pool
      No
        Pets allowed
        Architectural Style
      Colonial
        Basement
      Walk-Out Access, Finished
      Interior features
      Sep Shower, Elevator
      Exterior features
      Balcony, Rock Garden
      Lot features
      Backlot, Level
      Patio & Porch Features
      Terrace, Deck
      Construction materials
      Clapboard, Stone
      Green Energy Efficient
      Monthly taxes
      $2,619
      Yearly taxes
      $31,433
      School district
      Schools
      Glenville, Western
      Senior community
      No
      Association Fee
      -
      Open Houses
      In-Person
      No upcoming in-person open houses
      Virtual
      No upcoming virtual open houses
      Contact Agent
      Matthew Tallett
      Matthew Tallett
      REALTOR® Salesperson, Brown Harris Stevens CT, LLC
      Direct 
       
      Location
      From town, west on Putnam Avenue, right on Oak Street, Left into private lane, last house.
      For Sale Nearby
      No nearby homes are For Sale Nearby.
      Recently Sold
      No nearby homes have been Recently Sold.
      20 Oak Street, Greenwich, CT 06831, is a 5 bedroom, 7 bathroom, 8603 sqft. Single Family Residence built in 2004. This property is currently available for sale and was listed on Greenwich Multiple Listing Service, Inc. on 5-19-2026. The MLS# for this Single Family Residence is MLS# 125038.
      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
      Copyright ©2026 Greenwich Multiple Listing Service, Inc.