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528 Round Hill Road, 
Greenwich, CT 06831

$18,999,000


6

Beds


12

Baths


17,197

Sq Ft


Single Family

Active

Listed by

Kate Bates

Compass Connecticut, LLC.

Last updated:

February 13, 2026, 08:00 PM

MLS#

124218

Source:

CT GAR

About This Home

528 Round Hill Road

Stunning New Construction. A Grand Estate of Architectural Distinction. This Incredible new build was Conceived and will be Constructed without Compromise. A build of enduring significance beautifully set on 4 acres. Spanning 17,197 square feet, this residence achieves extraordinary vertical volume with 11-foot ceilings on the main level and a breathtaking two-and-a-half-story family room framed by floor-to-ceiling glass. The main level features a chef's kitchen with an oversized 14-foot island, a glass-enclosed wine room, a stately library and a first floor guest suite. Upstairs, the private primary wing offers a dramatic atrium, vaulted ceilings, and boutique level his-and-hers closets. The walk-out lower level with 11 foot ceilings serves as a private resort-level retreat, featuring a glass-enclosed fitness center, a serene octagonal meditation room, and a state-of-the-art golf simulator. Outside, a 3,200-square-foot multi-level masonry terrace leads to a resort-style pool and a fully appointed pool house with a wood-burning fireplace. This beautiful home features a black slate roof, Marvin high-performance windows, and intelligent luxury systems including a Lutron smart lighting system, a 38KW standby generator, and electric vehicle charging. This masterpiece was designed to stand apart in one of Greenwich's most prestigious settings. Completion 1/10/2027

Home Facts

Single Family

12 Baths

6 Bedrooms

Built in 2026

Price Summary

18,999,000

$1,104 per Sq. Ft.

MLS #:

124218

Last Updated:

February 13, 2026, 08:00 PM

Added:

a month ago


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

12

Full Bathrooms:

10

Interior

Living Area:

17,197 Sq. Ft.


Structure

Structure

Architectural Style:

Colonial

Building Area:

17,197 Sq. Ft.

Year Built:

2026


Lot

Lot Size (Sq. Ft):

174,240


Finances & Disclosures

Finances

Price:

$18,999,000

Price per Sq. Ft:

$1,104 per Sq. Ft.

Source:CT GAR
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.