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
Est.:
Residential, Single Family Residence
Built in 2026
4 Acres Lot
$18,163,700 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
- 23 days |
- 6,021 |
- 189 |
Zillow last checked: 8 hours ago
Listing updated: February 13, 2026 at 11:06am
Listed by:
Kate Bates 203-554-1143,
Compass Connecticut, LLC
Source: Greenwich MLS, Inc.,MLS#: 124218
Tour with a local agent
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
$18,163,700
$17.26M - $19.07M
Not available
Price history
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: | ||
Public tax history
Public tax history
Tax history is unavailable.BuyAbility℠ payment
Est. payment
$107,079/mo
Principal & interest
$73672
Property taxes
$26757
Home insurance
$6650
Climate risks
Neighborhood: 06831
Nearby schools
GreatSchools rating
- 9/10Parkway SchoolGrades: K-5Distance: 0.7 mi
- 7/10Western Middle SchoolGrades: 6-8Distance: 7.1 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 5.9 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.
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