18 Sound Beach Ave Old Greenwich, CT 06870
Old Greenwich NeighborhoodEstimated payment $10,145/month
Highlights
- Very Popular Property
- Colonial Architecture
- Thermal Windows
- International School At Dundee Rated A+
- Attic
- Tankless Water Heater
About This Home
The build is complete - welcome to 18 Sound Beach Avenue! This exceptional NEW 4-bedroom, 3.5-bathroom home has been fully reconfigured and thoughtfully designed with modern elegance and functionality in mind. The exterior showcases timeless white James Hardie siding, sleek black windows, and clean architectural lines that create striking curb appeal. Step inside to a bright, open-concept main level featuring white oak hardwood floors throughout. The stunning modern kitchen flows seamlessly into the dining and living areas, highlighted by a unique serving window and large French doors that open to an expansive rear deck - perfect for effortless indoor-outdoor entertaining. Upstairs, you'll find a serene primary suite complete with a luxurious en-suite bath. Two additional bedrooms and another full bath are on the upper level. The finished lower level offers a private fourth bedroom with an en-suite bath, laundry hookups, and a spacious additional room ideal for a home office, playroom, or even a full in-law suite. Enjoy Connecticut's weather in the beautifully landscaped backyard, overlooked by an oversized deck designed for relaxing or hosting gatherings. Located in highly sought-after Old Greenwich, this home is just moments from top-rated schools, scenic beaches, parks, and the vibrant local shops and restaurants the community is known for. Don't miss this rare opportunity to own a luxurious, turnkey home in one of Connecticut's most desirable neighborhoods.
Listing Agent
Call It Closed Realty Brokerage Phone: (203) 331-5432 License #RES.0817165 Listed on: 10/16/2025
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $2,410
Year Built
- Built in 2025 | Under Construction
Lot Details
- 8,276 Sq Ft Lot
- Cleared Lot
- Property is zoned R-7
Home Design
- Colonial Architecture
- Concrete Foundation
- Frame Construction
- Asphalt Shingled Roof
- HardiePlank Siding
Interior Spaces
- 1,977 Sq Ft Home
- Thermal Windows
- Pull Down Stairs to Attic
Kitchen
- Gas Range
- Range Hood
- Microwave
- Dishwasher
Bedrooms and Bathrooms
- 4 Bedrooms
Finished Basement
- Walk-Out Basement
- Basement Fills Entire Space Under The House
Schools
- Old Greenwich Elementary School
- Greenwich High School
Utilities
- Central Air
- Heating System Uses Natural Gas
- Tankless Water Heater
Listing and Financial Details
- Assessor Parcel Number 1856691
Map
Home Values in the Area
Average Home Value in this Area
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2021 | $6,497 | $535,920 | $408,380 | $127,540 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 10/24/2025 10/24/25 | For Sale | $1,899,900 | +100.0% | $961 / Sq Ft | |
| 06/07/2024 06/07/24 | Sold | $950,000 | +11.8% | $603 / Sq Ft | View Prior Sale |
| 05/11/2024 05/11/24 | Pending | -- | -- | -- | |
| 05/08/2024 05/08/24 | For Sale | $850,000 | -5.6% | $539 / Sq Ft | |
| 09/05/2014 09/05/14 | Sold | $900,000 | -5.3% | $237 / Sq Ft | View Prior Sale |
| 08/06/2014 08/06/14 | Pending | -- | -- | -- | |
| 04/30/2014 04/30/14 | For Sale | $950,000 | -- | $250 / Sq Ft |
Source: SmartMLS
MLS Number: 24134147
APN: GREE M:06 B:1351/S
- 20 Sound Beach Ave
- 143 Lockwood Rd
- 61 Laddins Rock Rd
- 11 Harding Rd
- 1465 E Putnam Ave Unit 301
- 1465 E Putnam Ave Unit 430
- 1465 E Putnam Ave Unit 113
- 19 Wescott St
- 1465 E Putnam Ave Unit 217
- 23 Amherst Rd
- 38 Sheephill Rd
- 1525 E Putnam Ave Unit 107
- 48 Meyer Place
- 51 Forest Ave Unit 113
- 51 Forest Ave Unit 8
- 3 Finney Knoll Ln
- 20 Havemeyer Ln
- 61 Aberdeen St Unit 3
- 61 Aberdeen St Unit 2nd Fl.
- 63 Riverside Ave