21 S Sterling Road
Armonk, NY 10504
Map
- 6 beds
- 9 baths
- 11,615 sqft
- ~3 acre lot
- $598 per sqft
- 2006 build
- – on site
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 two story indoor/outdoor pool, set in a greenhouse 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.
Last checked:
As a licensed real estate brokerage, Estately has access to the same database professional Realtors use: the Multiple Listing Service (or MLS). That means we can display all the properties listed by other member brokerages of the local Association of Realtors—unless the seller has requested that the listing not be published or marketed online.
The MLS is widely considered to be the most authoritative, up-to-date, accurate, and complete source of real estate for-sale in the USA.
Estately updates this data as quickly as possible and shares as much information with our users as allowed by local rules. Estately can also email you updates when new homes come on the market that match your search, change price, or go under contract.
Checking…
•
Last updated Jul 2, 2025
•
MLS# 878389 —
The Building
-
Year Built:2006
-
Basement:true
-
Architectural Style:Contemporary
-
Construction Materials:Frame, Stone, Wood Siding
-
Patio And Porch Features:Patio
-
Building Area Units:Square Feet
-
Exterior Features:Balcony, Basketball Court
-
Security Features:Security System
-
Attic:Unfinished
Interior
-
Living Area:11615
-
Total Rooms:21
-
Interior Features:First Floor Bedroom, Cathedral Ceiling(s), Eat-in Kitchen, Entrance Foyer, Formal Dining, Primary Bathroom, Pantry, Walk-In Closet(s), Wet Bar
-
Fireplaces Total:3
-
Fireplace:true
-
Living Area Source:Public Records
Financial & Terms
-
Lease Considered:false
The Property
-
Lot Features:Level, Near School, Near Shops
-
Lot Size Acres:2.66
-
Parcel Number:3800-108-000-00004-000-0001-012-0000
-
Property Type:Residential
-
Property Subtype:Single Family Residence
-
Lot Size SqFt:115,870 Sqft
-
Property Attached:false
-
Additional Parcels:false
-
Waterfront:false
-
Road Responsibility:Public Maintained Road
-
Other Equipment:Generator
Listing Agent
- Contact info:
- Agent phone:
- (914) 469-9889
- Office phone:
- (914) 228-2656
Taxes
-
Tax Year:2025
-
Tax Source:Municipality
-
Tax Annual Amount:84920.08
-
Included In Taxes:Trash
Beds
-
Total Bedrooms:6
Baths
-
Full Baths:6
-
Half Baths:3
-
Total Baths:9
The Listing
-
Special Listing Conditions:None
Heating & Cooling
-
Heating:Hydro Air, Oil, Radiant
-
Cooling:Central Air
Utilities
-
Sewer:Septic Tank
-
Utilities:Trash Collection Public
-
Water Source:Well
Appliances
-
Appliances:Oil Water Heater
Schools
-
High School:Byram Hills High School
-
Elementary School:Coman Hill
-
High School District:Byram Hills
-
Middle School:H C Crittenden Middle School
-
Elementary School District:Byram Hills
-
Middle School District:Byram Hills
The Community
-
Association:false
-
Senior Community:false
-
Additional Fees:No
-
Pool Features:In Ground, Indoor
-
Pool Private:true
-
Spa:true
Parking
-
Parking Features:Attached, Detached
-
Garage:true
-
Garage Spaces:3
-
Carport:false
Monthly cost estimate
Asking price
$6,950,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$37,215
|
| Taxes | $7,076 |
| Insurance | $1,911 |
| Utilities | $626 See report |
| Total | $46,828/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
| Date | Event | Source | Price | % Change |
|---|---|---|---|---|
|
7/1/25
Jul 1, 2025
|
Listed / Active | ONEKEY | $6,950,000 |
