301 Old Mill Road

Saint James, NY
$ 2,499,000 Beds 6 Baths 4 Sq 6,050
Monthly Estimate* How much can I afford?

Welcome to 301 Old Mill Road, a masterfully crafted custom-built new construction nestled on a private lot backing directly to protected preserve land, offering exceptional privacy in the heart of Saint James. Designed with extraordinary attention to detail, this exceptional 6-bedroom, 4-bath residence blends timeless architecture with refined modern luxury, showcasing soaring ceilings, elegant living spaces, thoughtfully curated finishes, distinctive copper roof accents, and impeccable craftsmanship throughout. Additional highlights include a gourmet chef’s kitchen and an expansive lower level with 9-foot ceilings and egress, offering endless possibilities. Every detail reflects quality, comfort, and thoughtful design, creating a truly one-of-a-kind home that must be experienced in person. Available color upgrade through builder.

Single Family

  • Price
  • $ 2,499,000
  • City
  • Saint James
  • Bedrooms
  • 6
  • Full Bathrooms
  • 4
  • County
  • SUFFOLK
  • Half Bathrooms
  • 0
  • Area
  • Lot Size
  • 1.17 Acres
  • Zip
  • 11780
  • Sqr Footage
  • 6,050
  • Year Built
  • 2026
  • Taxes
  • $ 33000
  • Style
  • Colonial
  • MLS#
  • 1019623
Listed By: Keller Williams Realty Elite
Data Source: Listings courtesy of OneKey® MLS as distributed by MLS GRID

Features

General

Sewer Cesspool
Heating Forced Air
Cooling Central Air
Utilities See Remarks
Appliances Dishwasher,Dryer,Range,Refrigerator,Washer
Garage Spaces 3
Architectural Style Colonial
Construction Materials Foam Insulation,HardiPlank Type,Stone
Year Built 2026
Property Subtype Single Family Residence
Tax Year 2026
County Suffolk County
Property Type Residential
HOA No
Garage Y/N Yes
Total Rooms 10
Full Baths 4
High School Smithtown High School-East
City Smithtown
Senior Community Y/N No
High School District Smithtown
Carport Y/N No
Elementary School St James Elementary School
Property Attached Y/N No
Tax Annual Amount 33000
Middle/Junior High School Nesaquake Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Smithtown
Elementary School District Smithtown
PostalCity Saint James
AttributionContact 516-795-6900
Listing Appliances Dishwasher, Dryer, Range, Refrigerator, Washer

Interior Features

Interior Amenities Eat-in Kitchen,Formal Dining,Pantry,Quartz/Quartzite Counters,Tray Ceiling(s),Walk-In Closet(s)
Basement Full,Unfinished
Fireplace Features Electric
Formal Dining Yes
Basement Features Full, Unfinished
Basement (Y/N) Yes
Fireplace Y/N Yes
Total Bedrooms 6
Eat-in Kitchen Yes
Total Baths 4
General Features Eat-in Kitchen,Formal Dining,Pantry,Quartz/Quartzite Counters,Tray Ceiling(s),Walk-In Closet(s)
Walk-In Closet Yes

Exterior Features

Parking Features Private
Water Source Public
Parking Features Private
Building Area Total 6050
Waterfront Y/N No

Amenities

  • Foreclosure
  • Views
  • Short Sale
  • New Construction
  • Adult 55+
  • Lease To Own
  • No HOA Fees
  • Furnished
  • Primary On Main
  • Air Conditioning
  • Seller Finance
  • Green
  • Fixer Upper
  • Horse
  • Golf
  • Fireplace
  • Deck
  • Garage
  • Basement
  • Pool

Affordability Calculator

$3,786

Per Month

Based on the average sale price from the Bay Shore, NY office

  • Monthly Principal & interest $2,658
  • Monthly Property Taxes $1,062
  • Monthly Home Insurance $67
Adjust Payment Options
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Let's determine your purchasing power. Working with my mortgage partner, you'll have the information you need to shop for a home with confidence.

Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA, or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

Schools

Elementary School St James Elementary School
Middle School Nesaquake Middle School
High School Smithtown High School-East

Price History

6/29/2026 Listed $2,699,000
7/31/2026 8% - $2,499,000

Property vs Zip Code Average in 11780

Price
AVG $2.13M
$2.5M
Taxes
AVG $25,109
$33,000
Year Built
AVG 1984
2026
Visits
AVG 103
119
Data Provided by Inside Real Estate®

Areas That We Cover

301 Old Mill Road Saint James, NY is a Single Family Home for sale at $2499000 with 6050 sqft and a lot size of 1.17 Acres Acre(s). 301 Old Mill Road Saint James has 6 bedrooms, 4 baths and was built in 2026. The property's zip code is 11780 which is in Saint James, NY

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

All information deemed reliable, but not guaranteed, and should be independently verified. The real estate information and related content displayed on this site is provided 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.

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Angela Prince

Angela Prince

631-983-4944

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