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
New construction
$18,999,000
528 Round Hill Rd, Greenwich, CT 06831
6beds
17,197sqft
Residential, Single Family Residence
Built in 2026
4 Acres Lot
$17,998,300 Zestimate®
$1,105/sqft
$-- HOA
What's special
Resort-style poolFirst floor guest suiteStately libraryVaulted ceilingsState-of-the-art golf simulatorSerene octagonal meditation roomBoutique level his-and-hers closets
- 136 days |
- 1,127 |
- 50 |
Zillow last checked:
Listing updated:
Listed by:
Kate Bates 203-554-1143,
Compass Connecticut, LLC
Source: Greenwich MLS, Inc.,MLS#: 124218
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 12
- Full bathrooms: 10
- 1/2 bathrooms: 2
Heating
- Forced Air, Propane
Cooling
- Central Air
Appliances
- Laundry: Laundry Room
Features
- Kitchen Island, Eat-in Kitchen, Bookcases, Built-in Features, Pantry, Back Stairs
- Basement: Finished
- Number of fireplaces: 4
Interior area
- Total structure area: 17,197
- Total interior livable area: 17,197 sqft
Property
Parking
- Total spaces: 4
- Parking features: Garage Door Opener
- Garage spaces: 4
Features
- Exterior features: Gas Grill
- Has private pool: Yes
Lot
- Size: 4 Acres
- Features: Level
Details
- Additional structures: Pool House
- Parcel number: 101363
- Zoning: RA-4
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Residential, Single Family Residence
Materials
- Cedar, Shingle Siding
- Roof: Slate
Condition
- Under Construction
- New construction: Yes
- Year built: 2026
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Propane
Community & HOA
Community
- Security: Security System, Smoke Detector(s)
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $1,105/sqft
- Date on market: 1/23/2026
- Inclusions: Washer/Dryer, Call LB, All Kitchen Applncs, A/V Equip
Estimated market value
$17,998,300
$17.10M - $18.90M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 1/23/2026 | Listed for sale | $18,999,000+442.8%$1,105/sqft |
Source: | ||
| 7/9/2025 | Sold | $3,500,000$204/sqft |
Source: | ||
| 5/20/2025 | Pending sale | $3,500,000$204/sqft |
Source: | ||
| 5/9/2025 | Listed for sale | $3,500,000$204/sqft |
Source: | ||
| 10/24/2024 | Listing removed | $3,500,000$204/sqft |
Source: | ||
| 9/15/2024 | Listed for sale | $3,500,000$204/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment$--/mo
Payment breakdown
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All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 06831
Nearby schools
GreatSchools rating
- 10/10Parkway SchoolGrades: K-5Distance: 0.7 mi
- 8/10Western Middle SchoolGrades: 6-8Distance: 7.1 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 5.8 mi
Schools provided by the listing agent
- Elementary: Parkway
- Middle: Western
Source: Greenwich MLS, Inc.. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- Connecticut
- Fairfield County
- Greenwich
- 06831
- 528 Round Hill Rd








