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.
For sale
Price cut: $200K (7/31)
$2,499,000
301 Old Mill Road, Saint James, NY 11780
6beds
6,050sqft
Single Family Residence, Residential
Built in 2026
1.17 Acres Lot
$-- Zestimate®
$413/sqft
$-- HOA
What's special
Soaring ceilingsElegant living spacesDistinctive copper roof accentsImpeccable craftsmanship throughoutRefined modern luxuryTimeless architectureThoughtfully curated finishes
- 70 days
- 937
- 34
Zillow last checked:
Listing updated:
Listed by:
Keller Williams Realty Elite 516-795-6900,
Gregory J. Masaitis 516-241-4109
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 1019623
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 4
- Full bathrooms: 4
Primary bedroom
- Level: Second
Bedroom 1
- Level: First
Bedroom 2
- Level: First
Bedroom 3
- Level: Second
Bedroom 4
- Level: Second
Bedroom 5
- Level: Second
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Included: Dishwasher, Dryer, Range, Refrigerator, Washer
- Laundry: Laundry Room
Features
- Eat-in Kitchen, Formal Dining, Pantry, Quartz/Quartzite Counters, Tray Ceiling(s), Walk-In Closet(s)
- Basement: Full,Unfinished
- Attic: Full,Pull Stairs,See Remarks
- Has fireplace: Yes
- Fireplace features: Electric
Interior area
- Total structure area: 6,050
- Total interior livable area: 6,050 sqft
Property
Parking
- Total spaces: 3
- Parking features: Private
- Garage spaces: 3
Features
- Levels: Two
Lot
- Size: 1.17 Acres
Details
- Special conditions: None
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Foam Insulation, HardiPlank Type, Stone
Condition
- Year built: 2026
Utilities & green energy
- Sewer: Cesspool
- Water: Public
- Utilities for property: See Remarks
Community & HOA
HOA
- Has HOA: No
Location
- Region: Saint James
Financial & listing details
- Price per square foot: $413/sqft
- Annual tax amount: $33,000
- Date on market: 6/29/2026
- Cumulative days on market: 71 days
- Listing agreement: Exclusive Right To Sell
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 7/31/2026 | Price change | $2,499,000-7.4%$413/sqft |
Source: | ||
| 6/29/2026 | Listed for sale | $2,699,000$446/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Climate risks
Neighborhood: 11780
Nearby schools
Schools provided by the listing agent
- Elementary: St James Elementary School
- Middle: Nesaquake Middle School
- High: Smithtown High School-East
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.







