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517A Old Chappaqua RoadBriarcliff Manor, NY 10510

For Sale

$2,489,222

Smart Buyer Rebate $24,892

Exquisite new 5 bedroom, 4.1 bath center hall colonial to be built offering refined luxury and timeless architectural elegance in an exceptional cul-de-sac setting. Perfectly positioned on just shy of one acre and backing the serene wooded grounds of the Edith Macy Center, this residence blends privacy, prestige, and natural beauty. A rare opportunity exists to fully customize finishes, materials, colors, and upgrades — allowing you to curate a home that reflects your personal vision and lifestyle. Upon entry, a dramatic double-sided staircase with an architectural catwalk creates a breathtaking focal point. Thoughtfully designed with 9-foot ceilings throughout and a soaring 20-foot cathedral ceiling in the family room, the home offers grand scale and open, light-filled living spaces. A statement fireplace anchors the family room, creating warmth and sophistication. The state-of-the-art chef’s kitchen will feature premium appliances, custom cabinetry, quartz countertops, and expansive workspace ideal for entertaining and everyday luxury living. Upstairs, generously proportioned bedrooms provide comfort and privacy, with the option to finish a bonus room tailored to your needs — whether a media lounge, private office, or fitness studio. The primary suite will serve as a tranquil retreat with spa-inspired bath potential. Additional exceptional features include: 3-car garage, expansive rear patio for seamless indoor/outdoor entertaining, large unfinished lower level, plumbed for future bath and endless possibilities, pool site potential in the rear yard. The home will be strategically set back and elevated on the property to maximize privacy, presence, and curb appeal. Driveway will be completely redone and re-pitched. House is currently staked out in yellow. Taxes are projected based on list price and consolidated tax rate and do not include STAR discount. A rare opportunity to build a luxury residence in a coveted location. Customize now and bring your dream home to life.

Listed by Mark J. Seiden

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Mark Seiden Real Estate Team

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914-762-2200

Last updated October 01, 2026

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Source: OneKey #1057129

Listing Facts

  • TypeSingle-family
  • NeighborhoodMount Pleasant
  • Bedrooms5
  • Bathrooms5
  • Days on Prevu31
  • Taxes$67,924/year
  • Size5,391 sqft
  • Price per sqft$462

Amenities

  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

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Listing History

09/30/2026
Listed by Mark Seiden Real Estate Team
$2,489,222
  1. 09/30/2026$2,489,222
    Listed by Mark Seiden Real Estate Team

Property Details for 517A Old Chappaqua Road

Exterior

Construction

  • Property Condition: To Be Built
  • Year Built: 2026
  • Architectural Style: Colonial
  • Construction Materials: Hardi Plank Type

Features

  • Patio And Porch Features: Patio

Measurements

  • Building Area Units: Square Feet
  • Lot Size Acres: 0.96
  • Lot Size Square Feet: 41,382

Financial

Taxes

  • Parcel Number: 98.8-1-10.2
  • Tax Annual Amount: $67,924.00
  • Tax Assessed Value: $25,250.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dryer, Stainless Steel Appliance(s), Washer
  • Fireplace Features: Family Room
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Flooring: Hardwood
  • Interior Features: Breakfast Bar, Cathedral Ceiling(s), Chefs Kitchen, Crown Molding, Eat-in Kitchen, High Ceilings, His And Hers Closets, Kitchen Island, Pantry, Primary Bathroom, Quartz/Quartzite Counters, Recessed Lighting, Soaking Tub, Walk-In Closet(s)

Measurements

  • Living Area: 5,391
  • Living Area Source: Other

Rooms

  • Basement: Unfinished
  • Has Basement: Yes
  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 5
  • Rooms Total: 10

Parking

Parking

  • Garage Spaces: 3
  • Garage: Yes
  • Parking Features: Attached

Schools

Elementary School

  • Elementary School: Todd Elementary School
  • Elementary School District: Briarcliff Manor

High School

  • High School: Briarcliff High School
  • High School District: Briarcliff Manor

Middle or Junior School

  • Middle Or Junior School: Briarcliff Middle School
  • Middle Or Junior School District: Briarcliff Manor

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Electric
  • Laundry Features: Laundry Room
  • Sewer: Public Sewer
  • Utilities: Electricity Connected, Sewer Connected, Trash Collection Public
  • Water Source: Well

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 5 bathrooms in this single-family home at 517A Old Chappaqua Road.

What schools are nearby to 517A Old Chappaqua Road?

Nearby schools include the Todd Elementary School, Briarcliff Middle School, and Briarcliff High School.

Does this single-family home have parking?

Yes, there are 3 parking spaces available for 517A Old Chappaqua Road.

What are the annual taxes for 517A Old Chappaqua Road?

Annual taxes for this single-family home are estimated at $67,924.

How does 517A Old Chappaqua Road compare to other single-family homes in Mount Pleasant?

This single-family home is listed 67% above the average price for single-family homes in Mount Pleasant and has been on the market for 97 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 5,391 sqft.

517A Old Chappaqua Road is a 5-bedroom, 5-bath single-family home for sale in Briarcliff Manor NY 10510. On Prevu for 31 days at $2,489,222. This property features 5,391 square feet of living space, located in Mount Pleasant. The median listing price for single-family homes in this area is $1,250,000. Nearby schools include Todd Elementary School, Briarcliff Middle School, and Briarcliff High School. Additional amenities include private outdoor space, air conditioning, parking, and washer/dryer. View other single-family home listings in Westchester County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.