20 Oak Street, Greenwich, CT, 06831

Address

20 Oak Street, Greenwich, CT

Listing Type

Active

Price

$ 4,950,000

Your Agent

Thomas Chason

Licensed Real Estate Salesperson

Cell: 914-263-7915

Property Attributes

MLS#125038
TypeSingle Family
Listing Status Active
CountyFairfield
CityGreenwich
AreaGreenwich
NeighborhoodGlenville
Zip06831
Style
Year Built2004
Taxes$ 26664
Price$ 4,950,000
Bedrooms5
Full Bathrooms7
Half Bathrooms2
Sqr Footage8603
Lot Size0.7 Acres

Data Source:

Greenwich MLS (GRWMLS)

Property Description

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.

Elementary School	Middle School
Glenville Elementary School	Western Middle School

Price History
5/19/2026	Listed $5,400,000
7/31/2026	8$4,950,000

General Features

Sewer	Town Sewer
Heating	Natural Gas,See Remarks,Forced Air
Cooling	Central Air
Roof	Architectural Shngle
Zoning	R-12
Garage Spaces	2
Patio/Porch Features	Terrace,Deck
Architectural Style	Colonial
Security Features	Security System
Construction Materials	Clapboard,Stone
Year Built	2004
Property Subtype	Single Family Residence
County	Fairfield
Property Type	Residential
Attached Garage	false
Full Baths	7
Status	Active
Directions	From town, west on Putnam Avenue, right on Oak Street, Left into private lane, last house.
City	Greenwich
MLS Area	3 - Greenwich
Lot Size Units	Acres
Lot Size Square Feet	30492
Elementary School	Glenville
Tax Annual Amount	26664.06
Middle/Junior High School	Western
MLS Area Minor	3 - Greenwich
Virtual Tour	https://vimeo.com/1193759005?fl=pl&fe=sh
Standard Status	Active
Tax Assessed Value	2543310

Interior Features

Interior Amenities	Sep Shower,Elevator
Basement	Walk-Out Access,Finished
Total Fireplaces	3
Air Conditioning Y/N	true
Heating Y/N	true
Fireplace Y/N	true
Half Baths	2
Laundry Features	Laundry Room
Total Bedrooms	5
Total Baths	9

Exterior Features

Exterior Amenities	Balcony,Rock Garden
Parking Features	Attached Garage,Garage Door Opener
Lot Features	Backlot,Level
Water Source	Public
Inclusions	Washer/Dryer, All Kitchen Applncs
Lot Size Area	0.7
Building Area Total	8603
Lot Size Acres	0.7