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South Setauket, NY

Office

South Setauket, NY Office Spaces for Sale

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East Setauket, NY Ronkonkoma, NY Lake Grove, NY Stonybrook, NY Port Jefferson Station, NY Selden, NY St James, NY Farmingville, NY

Established Dental Office For Sale

Updated: Mar 25

Established Dental Office For Sale

1 Mark Tree Road, Centereach, NY 11720

Contact for pricing

3,549 sqft

Stable dental office with long‑term tenant retention potential.
10‑year initial lease term (expires March 19, 2033).
Located in a well‑established medical corridor.
Resilient tenant profile in a healthcare‑driven submarket.
Strong visibility and reliable patient traffic.

Medical Office Park

Updated: Oct 24

Medical Office Park

23 S. Howell Avenue, Centereach, NY 11720

Contact for pricing

100% occupied medical office park
Tenants include major healthcare system providers
Built in 2013
At the intersection of Nicolls Road (Rte 97) and Middle Country Road (Rte 25)
Close to the LIE (Rte 495) and hospitals

Realmo Analytics Monitor Off-market properties and contact owners who are ready to sell. Many signals applied to make quality leads for you. Get Leads

2 active listings match your search: Office for sale in South Setauket, NY. Based on your search, we've also compiled 30 Potential Opportunities for your consideration: 4 properties in nearby cities, 22 off-market properties to explore as potential leads, and 4 land listings with development potential.

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Two-Unit Freestanding Office Building

Two-Unit Freestanding Office Building

362 Mooney Pond Road, Farmingville, NY 11738

$629,999

2,500 sqft

A stone-clad commercial property offers separate work areas, accessible entry, central air conditioning, and off-street parking.

Freestanding Office Building

Freestanding Office Building

362 Mooney Pond Road, Farmingville, NY 11738

$629,999

0.14 AC lot

Two-unit office property with separate electric meters, central air, parking, and flexible interior configuration.

Turnkey Ground-Floor Medical Office Suite

Turnkey Ground-Floor Medical Office Suite

103-8 Nesconset Hwy, East Setauket, NY 11733

$999,995

2,500 sqft

Ground-floor, turnkey office suite previously used by a medical practitioner, with possible expansion options.

East Setauket Corner Office Unit

East Setauket Corner Office Unit

2-21 Technology Dr, East Setauket, NY

Contact for pricing

6,800 sqft 3.08 AC lot

Corner office unit in Stonybrook Technology/Medical Park.

Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

J-2 Zoned Commercial Land

J-2 Zoned Commercial Land

N Country Roads, Rocky Point, NY

$390,000

0.41 AC lot

Commercial land in Rocky Point with J-2 zoning and potential for office, retail, workshop, and automotive-oriented uses.

Commercial Land with Build-to-Suit Plan

Commercial Land with Build-to-Suit Plan

34-41 Montauk Highway, East Moriches, NY 11940

$1,289,000

1.45 AC lot

Comm-zoned parcel with septic tank service and a proposed two-building commercial development concept.

Commercial Land Across From Apartments

Commercial Land Across From Apartments

770 N Broadway, Amityville, NY 11701

$1,999,990

0.95 AC lot

E Business zoning with public water and public sewer serves the commercial parcel.

Jamesport Commercial Land Opportunity

Jamesport Commercial Land Opportunity

1578 Main Rd, Jamesport, NY 11901

$1,250,000

1.36 AC lot

1.36-acre commercial parcel in Jamesport with development potential.

Off-Market Properties in South Setauket, NY

Consider similar Off-Market properties in South Setauket, NY. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

1523 Middle Country Rd

PROFESSIONAL BUILDING

1523 Middle Country Rd, Centereach, NY 11720-3513

Estimated value:

$550,000

0.09 AC lot

2450 Middle Country Rd

PROFESSIONAL BUILDING

2450 Middle Country Rd, Centereach, NY 11720-3548

Estimated value:

$900,000

0.45 AC lot

2112 Middle Country Rd

PROFESSIONAL BUILDING

2112 Middle Country Rd, Centereach, NY 11720-3519

Estimated value:

$9,085,000

18 Eastwood Blvd

PROFESSIONAL BUILDING

18 Eastwood Blvd, Centereach, NY 11720-2735

Estimated value:

$290,000

0.12 AC lot

99 Mark Tree Rd

OFFICE BUILDING

99 Mark Tree Rd, Centereach, NY 11720-2276

Estimated value:

$290,000

0.59 AC lot

26 Eastwood Blvd

PROFESSIONAL BUILDING

26 Eastwood Blvd, Centereach, NY 11720-2735

Estimated value:

$285,000

0.22 AC lot

2297 Middle Country Rd

OFFICE BUILDING

2297 Middle Country Rd, Centereach, NY 11720-3666

Estimated value:

$290,000

0.25 AC lot

7 Mark Tree Rd

PROFESSIONAL BUILDING

7 Mark Tree Rd, Centereach, NY 11720-2221

Estimated value:

$285,000

0.28 AC lot

1919 Middle Country Rd

OFFICE BUILDING

1919 Middle Country Rd, Centereach, NY 11720-5600

Estimated value:

$285,000

0.63 AC lot

1797 Middle Country Rd

PROFESSIONAL BUILDING

1797 Middle Country Rd, Centereach, NY 11720-5701

Estimated value:

$280,000

0.54 AC lot

7 Rosemary Ln

PROFESSIONAL BUILDING

7 Rosemary Ln, Centereach, NY 11720-4440

Estimated value:

$275,000

0.20 AC lot

1820 Middle Country Rd

PROFESSIONAL BUILDING

1820 Middle Country Rd, Centereach, NY 11720-3675

Estimated value:

$270,000

1.30 AC lot

1787 Middle Country Rd

PROFESSIONAL BUILDING

1787 Middle Country Rd, Centereach, NY 11720-3507

Estimated value:

$280,000

1.46 AC lot

9 Smith St

OFFICE BUILDING

9 Smith St, Centereach, NY 11720-3855

Estimated value:

$280,000

0.21 AC lot

2535 Middle Country Rd

PROFESSIONAL BUILDING

2535 Middle Country Rd, Centereach, NY 11720-5400

Estimated value:

$280,000

0.25 AC lot

1 Mark Tree Rd

PROFESSIONAL BUILDING

1 Mark Tree Rd, Centereach, NY 11720-2279

Estimated value:

$275,000

0.25 AC lot

141 Mark Tree Rd

PROFESSIONAL BUILDING

141 Mark Tree Rd, Centereach, NY 11720-2221

Estimated value:

$280,000

0.33 AC lot

Middle Country Rd

OFFICE BUILDING

Middle Country Rd, Centereach, NY 11720

Estimated value:

$280,000

0.25 AC lot

2539 Middle Country Rd

PROFESSIONAL BUILDING

2539 Middle Country Rd, Centereach, NY 11720-3551

Estimated value:

$285,000

0.30 AC lot

Wireless Rd

MEDICAL CLINIC

Wireless Rd, Centereach, NY 11720

Estimated value:

$285,000

49.83 AC lot

2566 Middle Country Rd

PROFESSIONAL BUILDING

2566 Middle Country Rd, Centereach, NY 11720-3525

Estimated value:

$295,000

0.50 AC lot

23 Howell Ave

PROFESSIONAL BUILDING

23 Howell Ave, Centereach, NY 11720-4445

Estimated value:

$265,000

3.66 AC lot

South Setauket, NY Office Spaces Market Trends and Statistics

Explore 24 office spaces for sale in South Setauket, NY on our real estate platform. These investment opportunities span a total of 3,549 square feet of properties for sale.

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Top Commercial Asset Segments

Commercial property segments ranked by active listings on the market

Demographics Overview

Population 29K

Population Growth (5Y) +0.4%

Median Household Income $128,015

College Educated 53.2%

Listings Trend

New vs delisted commercial listings in Suffolk County

New Delisted

Total CRE Inventory on Market (SF)

How Realmo verifies these figures

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