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MLS ID KEY1034483Last updated Oct 6, 2026

Single Family

457 Saw Mill River Road

Active · New Castle · Westchester County, NY 10546

Bedrooms
4 Beds
Bathrooms
2 Baths
Year built
1954
Est. monthly taxes
$1,175.92
Property gallery0 / 36
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About this home

A Rare Opportunity in the Heart of Millwood. Lake life, privacy, Chappaqua schools, and the convenience of being minutes from the heart of Millwood. This unique property offers an exceptional opportunity to create your own retreat in one of Westchester's most desirable communities. Set back from the road on 0.55 acres of beautiful grounds, this four-bedroom Raised Ranch enjoys a wonderful sense of privacy and connection to nature, while being just minutes from Millwood's shops, restaurants, and everyday conveniences. Mature landscaping and wooded surroundings create a natural buffer from the road and a setting that feels surprisingly removed from the activity of the area. And then there is Hidden Hollow Lake one of the property's most exceptional features. The home enjoys exclusive rights to the private Hidden Hollow Lake Community at no additional charge, a rare benefit enjoyed by very few properties. Residents have access to a private sandy beach where they can swim, kayak, and canoe, creating a true vacation-like lifestyle just steps from home. Built in 1954 and offering approximately 1,200 square feet, the four-bedroom, 2 bath home is being offered strictly as-is and presents an exciting opportunity for buyers looking to renovate, expand, or create a home uniquely suited to their needs. The main level features a welcoming living room with an open red-brick fireplace and wood-burning stove, with sliding doors opening to a charming three-season sunroom overlooking the backyard. The kitchen and dining area, powder room, laundry room, and access to the one-car garage complete this level. Upstairs are four bedrooms and a full bathroom. The primary bedroom offers access to a large covered sunroom and a beautiful wooden deck overlooking the grounds, providing a wonderful place to enjoy the natural setting and envision future possibilities. Outside, mature landscaping, flowering trees, specimen plantings, and wooded surroundings create a beautiful natural backdrop. A walking trail from the property leads toward Hidden Hollow Lake, making it easy to enjoy the lake and its recreational amenities right from home. The location is equally appealing. The property is just minutes from Millwood Shopping Plaza, home to DeCicco's Gourmet Market, Tazza Cafe, Drug Mart, and the Millwood Post Office. The Taconic State Parkway is easily accessible, as is Gedney Park and the North County Trailway, offering miles of opportunities for walking, running, and biking. Located in the highly regarded Chappaqua Central School District, the property combines the convenience of a central Millwood location with the beauty of mature grounds, lake access, and abundant outdoor recreation. A rare Millwood opportunity with deeded Hidden Hollow Lake rights, Chappaqua schools, beautiful grounds, and room to create something truly your own. A property with possibilities and a lifestyle that is increasingly difficult to find.

Listing snapshot

Days on site
59 days
Listed on MLS
Aug 26, 2026
Full baths
2
Half baths
0
Annual property tax (MLS)
$14,111
Tax year
2025
Association / maintenance fees (MLS)
$0
Area source (MLS)
Public Records
Listing brokerage
Houlihan Lawrence Inc.
MLS ID
KEY1034483
Last updated
Oct 6, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1954
Garage
Yes
Garage spaces
1
Parking
Driveway
Water source
Public
Sewer
Septic Tank
Utilities
Electricity Connected, Sewer Connected, Trash Collection Public, Water Connected

Interior features

Heating
Forced Air, Oil
Cooling
Central Air
Interior
Open Kitchen, Walk Through Kitchen, Washer/Dryer Hookup
Appliances
Dishwasher, Dryer, Electric Range, Refrigerator, Washer
Flooring
Carpet, Linoleum
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Raised Ranch
Construction materials
Block, Vinyl Siding
Private pool
No

Schools (MLS)

Elementary school
Westorchard
Elementary school district
Chappaqua
Middle school
Seven Bridges Middle School
Middle school district
Chappaqua
High school
Horace Greeley High School
High school district
Chappaqua

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. Price changed to $650,000
  3. First seen on this site
  4. MLS status changed

Location

New Castle · Westchester County, NY 10546Show interactive map
457 Saw Mill River Road

New Castle · Westchester County, NY 10546

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.