21 Sterling Rd S

11,615 Sq. Ft.
$570 / Sq. Ft.
11,615
Sq. Ft.
$570
per Sq. Ft.

Description

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...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.

Listing Agent

  1. Brian Milton

    Brian Milton

    Listing Agent

    Compass

    brian.milton@compass.com

    P: (914)-469-9889

Property Details for 21 Sterling Road South

City/Township
North Castle
Architectural Style
Contemporary
Garage Spaces
3.00
Waterfront
No
LISTING UPDATED: 09/15/2025 04:45 PM

Property Details for 21 Sterling Road South

StatusClosed
MLS #878389
Days on Market50
Taxes$84,920 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeSingle Family
Year Built2006
Lot Size2.66 AC / 115,870 SF
CountyWestchester County
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Building Information for 21 Sterling Road South

Stories-Year Built2006Building Size-Lot Size2.66 AC / 115,870 SF

Payment Calculator

$40,387 per month

30 year fixed, 6.46% Interest

Principal and Interest

$33,310

Property Taxes

$7,077

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 21 Sterling Road South

Summary
Location and General Information
  • Senior Community YN: No
  • Directions: GPS Friendly
  • Property Attached: No
  • Structure Type: false
  • State Or Province: NY
School Information
  • School District: Byram Hills
  • Elementary School District: Byram Hills
  • Elementary School: Coman Hill
  • Middle Or Junior School District: Byram Hills
  • Middle Or Junior School: H C Crittenden Middle School
  • High School District: Byram Hills
  • High School: Byram Hills High School
Rental
Rental
  • Lease Considered: No
Unit Information
Unit Information
  • Building Units Total: 1
Room Information
Room 1 Information
  • Room Level: First
  • RoomDescription 1: Two story Entry Foyer, Formal Powder Room, Dining Room/Pool Table Room, Living Room/FPL, Gourmet Kitchen, Large Pantry plus Butler Pantry, Study, Media Room, Mudroom w/ access to garage and side entrance, viewing area to Indoor Sport Court, Indoor/Outdoor pool w/changing room/shower and outdoor hot tub, Guest Suite w/ full bath and patio, 2 Car attached garage, 1 car detached)
Room 2 Information
  • Room Level: Second
  • Room Description: Primary Suite w Fpl/Dressing Room, soaking tub, shower and sauna, BR/WIC/Bth, UL Lounge, Homework area, BR/WIC/Bth, BR/WIC/Bth
Room 3 Information
  • Room Level: Lower
  • Room Description: Large Rec Room and Gym, Wine Cellar, Full sport court, Full Bath, mechanicals and storage
Taxes and HOA Information
Taxes and HOA Information
  • Parcel Number: 3800-108-000-00004-000-0001-012-0000
  • Tax Assessed Value: $77,000.00
  • Included In Taxes: Trash
  • Additional Fees: No
  • Association: No
Interior and Exterior Features
Interior Features
  • Amenities: 1st Floor Bedrm, Balcony, Basketball Court, Cathedral/Vaulted/High Ceiling, Contemporary, Eat in Kitchen, Entrance Foyer, Formal Dining, In Ground, Indoor, Pantry, Patio, Primary Bathroom, Security System, Walk In Closet, Well, Wet Bar
  • 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
  • Total Rooms: 21
  • Basement: Finished
  • Attic Description: Unfinished
  • Fireplace: Yes
  • Fireplaces Total: 3
  • Location Amenities: Balcony, Basketball Court, 1st Fl Master Bedroom, Cathedral/Vaulted/High Ceiling, Eat in Kitchen, Entry Foyer, Foyer, Formal Dining Room, Pantry, Walk In Closet, Wetbar, Patio, In Ground Pool, Pool Indoor, Security System
  • Security Features: Security System
  • Spa: Yes
  • Living Area: 11,615.00
  • Basement: Yes
Exterior Features
  • Exterior Features: Balcony, Basketball Court
  • Exterior Property Features: Balcony, Basketball Court, In Ground, Indoor, Patio, Attached, Detached, Level, Near School, Near Shops
  • Elevation Certificate: No
  • Patio And Porch Features: Patio
  • Construction Materials: Frame, Stone, Wood Siding
  • Road Responsibility: Public Maintained Road
  • Pool Private: Yes
  • Pool Features: In Ground,Indoor
  • Pool Details: In Ground,Indoor
Lot Information
  • Lot Features: Level, Near School, Near Shops
  • Additional Parcel: No
  • Site Features: Level, Near School, Near Shops
  • Building Area Units: Square Feet
Parking
  • Parking Features: Attached, Detached
  • Garage: Yes
  • Carport: No
Utilities
  • Cooling: Central Air
  • Heating: Hydro Air, Oil, Radiant
  • Heat Fuel Type: Hydro Air, Oil, Radiant
  • Sewer: Septic Tank
  • Water Source: Well
  • Utilities: Trash Collection Public
Green Features
  • Green Features: Oil Water Heater, Hydro Air, Oil, Radiant, Balcony, Basketball Court, In Ground, Indoor
Agent
Payment and Rate
  • Down Payment Resource: No

Property History for 21 Sterling Road South

DateEvent & SourcePriceAppreciation
Sep 15, 2025

Sold (Public Record)

Public Record #1914777008

$6,615,000
Sep 15, 2025

Sold

ONEKEY #878389

$6,615,000
Aug 20, 2025

Pending

ONEKEY #878389

Jul 1, 2025

Listed (Active)

ONEKEY #878389

$6,950,000
Sep 22, 2024

Expired

ONEKEY #H6296321

$7,250,000
Mar 30, 2024

Expired

ONEKEY #H6264250

$7,995,000
Mar 29, 2024

Listed (Active)

ONEKEY #H6296321

$7,250,000
Sep 5, 2023

Listed (Active)

ONEKEY #H6264250

$7,995,000
Dec 31, 2019

Expired

ONEKEY #H4921455

$8,888,888
Jun 19, 2019

Listed (Active)

ONEKEY #H4921455

$8,888,888
Sep 9, 2003

Sold

HGMLS #2304137

$1,850,000
Jul 21, 2003

Contract

HGMLS #2304137

Mar 13, 2003

Listed (Active)

HGMLS #2304137

$1,999,500
DateEvent & SourcePrice
09/15/2025

Sold (Public Record)

Public Record #1914777008

$6,615,000
09/15/2025

Sold

ONEKEY #878389

$6,615,000
08/20/2025

Pending

ONEKEY #878389

07/01/2025

Listed (Active)

ONEKEY #878389

$6,950,000
09/22/2024

Expired

ONEKEY #H6296321

$7,250,000
03/30/2024

Expired

ONEKEY #H6264250

$7,995,000
03/29/2024

Listed (Active)

ONEKEY #H6296321

$7,250,000
09/05/2023

Listed (Active)

ONEKEY #H6264250

$7,995,000
12/31/2019

Expired

ONEKEY #H4921455

$8,888,888
06/19/2019

Listed (Active)

ONEKEY #H4921455

$8,888,888
09/09/2003

Sold

HGMLS #2304137

$1,850,000
07/21/2003

Contract

HGMLS #2304137

03/13/2003

Listed (Active)

HGMLS #2304137

$1,999,500

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 21 Sterling Road South

Taxable ValueLand$3,300Additions$73,700Total$77,000
Tax Record2020$79,509 ($6,626 / month)
Home Facts
Beds0Total Finished SqFt11,335 SqFtAbove Grade Finished SqFt11,335 SqFtStories2Lot Size115,870 SqFtStyleSingle Family ResidenceYear Built2006ZoningR-2ACountyWESTCHESTERAPN553800 108.04-1-12Fireplace TypeHas Fireplace

Schools near 21 Sterling Road South

This home is within Byram Hills Central School District.
Rating
School
Type
Grades
Distance
Public - K to 2
Public - 3 to 5
Public - 6 to 8
Public - 9 to 12
Rating
School
Distance
Coman Hill School
PublicK to 2

Wampus School
Public3 to 5

H C Crittenden Middle School
Public6 to 8

Byram Hills High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Based on information submitted to the MLS GRID as of 09/15/2025 04:45 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.