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357 Smithtown BoulevardNesconset, NY 11767

For Sale

$3,950,000

Smart Buyer Rebate $39,500

For the first time in more than 75 years, a legacy of land assembled over generations is being offered to the public. Beginning with the acquisition of its first parcel in 1949, what started as a single investment has evolved into a remarkable nine-parcel assemblage encompassing approximately 4.21 acres in the heart of the Ronkonkoma/Nesconset corridor. Never before offered as one acquisition, this is a once-in-a-generation opportunity to control an entire mixed-use portfolio with exceptional flexibility and long-term potential.

More than just real estate, this is the opportunity to shape the future of an entire development block.

Whether your vision is a thoughtfully planned residential community, a mixed-use redevelopment, an income-producing investment portfolio, or a phased development strategy, this offering provides a foundation that would be extraordinarily difficult to recreate in today's market.

The assemblage includes:

• Two commercially zoned parcels with prominent frontage and visibility along Smithtown Boulevard.

• A six-unit multifamily property providing immediate income while future plans are developed.

• Five contiguous residential development parcels totaling approximately 2.75 acres, offering exceptional potential for future residential expansion.

• A single-family residence that may serve as an owner-occupied home, rental property, or future redevelopment component.

What makes this offering truly exceptional is not simply the acreage—it's the opportunity. Acquiring nearly an entire development block under one ownership eliminates the time, uncertainty, and expense of assembling multiple properties from different owners. It creates a level of flexibility and control that is increasingly difficult to find in today's market.

Strategically positioned with frontage on Smithtown Boulevard and additional access from Spectacle Lake Drive and Lillian Drive, the property enjoys outstanding visibility, multiple access points, proximity to Lake Ronkonkoma, the Long Island Rail Road, shopping, dining, major transportation corridors, and regional employment centers.

Very few opportunities offer this combination of location, existing income, commercial frontage, residential development potential, and long-term flexibility within a single acquisition.

For more than seven decades, this property has been part of one family's story. Today, it is ready to become part of someone else's vision.

All information is deemed reliable but not guaranteed. Buyers are responsible for independently verifying zoning, permitted uses, development potential, approvals, utilities, lot dimensions, environmental conditions, and all other matters material to their intended use.

Listed by Jaclyn Marra

·

Keller Williams Upstate NYProp

·

607-287-8097

Last updated July 28, 2026

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Source: OneKey #1017932

Listing Facts

  • TypeSingle-family
  • NeighborhoodLake Ronkonkoma
  • Bedrooms3
  • Bathrooms2
  • Days on Prevu36
  • Taxes$24,252/year
  • Size1,000 sqft
  • Price per sqft$3,950

Amenities

  • Parking

Location

Mortgage Calculator

Listing History

07/28/2026
Price Decreased
$3,950,000
06/25/2026
Listed by Keller Williams Upstate NYProp
$4,250,000

Property Details for 357 Smithtown Boulevard

Exterior

Construction

  • Property Attached: Yes
  • Year Built: 1950
  • Architectural Style: Other
  • Construction Materials: Vinyl Siding

Features

  • Other Structures: Barn(s), Outbuilding, Residence, Shed(s)

Measurements

  • Building Area Units: Square Feet
  • Lot Size Acres: 4.21
  • Lot Size Square Feet: 183,387

Financial

Taxes

  • Parcel Number: 0800-171-00-02-00-027-000
  • Tax Annual Amount: $24,252.00
  • Tax Assessed Value: $1,955.00
  • Tax Year: 2025

Interior

Features

  • Interior Features: Other

Measurements

  • Living Area: 1,000
  • Living Area Source: Other

Rooms

  • Bathrooms Full: 2
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 3
  • Rooms Total: 5

Parking

Parking

  • Parking Features: Parking Lot

Schools

Elementary School

  • Elementary School: Wenonah School
  • Elementary School District: Sachem

High School

  • High School: Sachem High School North
  • High School District: Sachem

Middle or Junior School

  • Middle Or Junior School: Samoset Middle School
  • Middle Or Junior School District: Sachem

Utilities

Equipment

  • Heating: Oil, Other
  • Sewer: Cesspool
  • Utilities: Electricity Connected
  • Water Source: Well

Frequently Asked Questions

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

There are 3 bedrooms and 2 bathrooms in this single-family home at 357 Smithtown Boulevard.

What schools are nearby to 357 Smithtown Boulevard?

Nearby schools include the Wenonah School Elementary School, Samoset Middle School, and Sachem High School North.

What are the annual taxes for 357 Smithtown Boulevard?

Annual taxes for this single-family home are estimated at $24,252.

How does 357 Smithtown Boulevard compare to other single-family homes in Lake Ronkonkoma?

This single-family home is listed 375% above the average price for single-family homes in Lake Ronkonkoma and has been on the market for 12 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 1,000 sqft.

357 Smithtown Boulevard is a 3-bedroom, 2-bath single-family home for sale in Nesconset NY 11767. On Prevu for 36 days at $3,950,000. This includes a recent price decrease of $300,000. This residence features 1,000 square feet of living space, located in Lake Ronkonkoma. The median listing price for single-family homes in this area is $714,495. Nearby schools include Wenonah School Elementary School, Samoset Middle School, and Sachem High School North. The home offers parking. Explore more single-family home listings in Suffolk 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.