This home's estimate is 36.1% higher than the average sale price ($4.63M) of 6 comparable homes.
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- Property details
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21 S Sterling Rd, Armonk, NY 10504
About this home
Where design meets purpose—this award-winning home brings together architectural innovation and serene luxury. Created by Carol Kurth Architecture and built by Legacy Construction NE, exceptional craftsmanship is seen throughout the home, showcased by a mix of natural materials and bold structural details. A cantilevered fireplace, floating staircases and cathedral ceilings are some of the thoughtfully considered elements found in these elegant and exhilarating interiors. The luxurious offerings in each space include a Bulthaup chef’s kitchen, primary suite with two fireplaces and spa, three additional bedrooms with attached lounge and work areas, a guest bedroom on the first floor and a private sun-drenched office. A suite of premium amenities make your everyday a remarkably refreshing experience. The unique indoor/outdoor pool, with a retractable glass A-frame roof is the signature amenity, while a spa area, indoor basketball and sport court, gym, and theater room complete the collection. Located on one of Armonk’s most coveted streets, close to town, schools and highways. This personal sanctuary is also 15 minutes to downtown Greenwich and within an hour of NYC.
Redfin Estimate
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Market trends in 10504, NY
Last updated September 2026
Buyer's Market
Seller's Market
Seller's market
- NEW 9 HRS AGO$2,495,0004 beds4.5 baths5,072 sq ft13 Sniffen Rd, Armonk, NY 10504Listing by William Raveis Real Estate
- OPEN SUN, 1PM TO 4PM$2,250,0005 beds4 baths4,620 sq ft4 Stone Hollow Way, Armonk, NY 10504Listing by Houlihan Lawrence Inc.
- $2,400,0004 beds5.5 baths5,139 sq ft10 Cider Mill Cir, Armonk, NY 10504Listing by William Raveis Real Estate
- $1,499,0003 beds2.5 baths3,544 sq ft115 Whippoorwill Rd, Armonk, NY 10504Listing by William Raveis Real Estate
- $5,400,0007 beds8.5 baths11,521 sq ft2 Hollow Ridge Rd, Armonk, NY 10504Listing by Compass Greater NY, LLC
See all
Provided by Redfin
Sale history for 21 S Sterling Rd
$570/sq ft
$598/sq ft
$624/sq ft
$688/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
Property details
Parking
- Parking Information
- Carport YN: No
- Parking Features: Attached, Detached
- Garage Information
- Garage Spaces: 3
- Has Garage
Interior
- Fireplace Information
- Has Fireplace
- Fireplaces Total: 3
- Heating & Cooling
- Cooling: Central Air
- Heating: Hydro Air, Oil, Radiant
- Interior Features
- Interior Features: First Floor Bedroom,Cathedral Ceiling(s),Eat-in Kitchen,Entrance Foyer,Formal Dining,Primary Bathroom,Pantry,Walk-In Closet(s),Wet Bar
- Appliances: Oil Water Heater
- Patio And Porch Features: Patio
- Room Information
- Basement YN: Yes
- Attic: Unfinished
- Rooms Total: 21
- Basement: Finished
- Bathroom Information
- Bathrooms Full: 6
- Bathrooms Half: 3
Exterior
- Exterior Features
- Exterior Features: Balcony, Basketball Court
- Construction Materials: Frame, Stone, Wood Siding
- Security Features: Security System
- Waterfront YN: No
- Pool Information
- Has Private Pool
- Pool Features: In Ground, Indoor
- Has Spa
- Lot Information
- Additional Parcels YN: No
- Lot Features: Level, Near School, Near Shops
- Property Information
- Other Equipment: Generator
- Living Area Source: Public Records
- Living Area (Sq. Ft.): 11615.00
- Property Sub Type: Single Family Residence
Financial
- Tax Information
- Tax Year: 2025
- Tax Source: Municipality
- Tax Annual Amount: $84,920.08
- Financial Information
- Buyer Financing: Cash
Utilities
- Utility Information
- Sewer: Septic Tank
- Utilities: Trash Collection Public
Location
- School Information
- Elementary School: Coman Hill
- Elementary School District: Byram Hills
- Middle Or Junior School: H C Crittenden Middle School
- Middle Or Junior School District: Byram Hills
- High School: Byram Hills High School
- High School District: Byram Hills
- Location Information
- Directions: GPS Friendly
- County Or Parish: Westchester County
Public facts
- Beds: —
- Baths: —
- Sq. Ft.: —
- Stories: —
- Lot Size: —
- Style: Single Family Residential
- Year Built: —
- Year Renovated: —
- County: Westchester County
- APN: 3800-108-000-00004-000-0001-012-0000
Around this home
Schools
Public K-2 • Assigned • 1.0mi
Public 6-8 • Assigned • 0.8mi
Public 9-12 • Assigned • 0.3mi
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
Unlikely to be in a wildfire in next 30 years
7 days above 97° expected this year, 15 days in 30 years
27% chance of strong winds in next 30 years
5 unhealthy days expected this year, 7 days in 30 years
Sun exposure
In this area, properties receive around 8.7 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.
Nearby similar homes
New listings for sale in 10504
Home values near 21 S Sterling Rd
| Address | Redfin Estimate |
|---|---|
- Beds | 2 Baths | 11350 Sq. Ft. | $3,880,977 |
- Beds | 3 Baths | 2702 Sq. Ft. | $1,231,247 |
| Address | Redfin Estimate |
|---|---|
- Beds | 4 Baths | 7580 Sq. Ft. | $2,862,986 |
- Beds | 4 Baths | 3809 Sq. Ft. | $2,180,087 |
| Address | Redfin Estimate |
|---|---|
- Beds | 5 Baths | 8093 Sq. Ft. | $3,015,933 |
- Beds | 4 Baths | 6591 Sq. Ft. | $2,332,822 |
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