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    Riverhead, NY Office Spaces for Sale

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    Calverton, NY Manorville, NY Eastport, NY
    11 results
    Medical/Office Building on Roanoke Avenue
    $750,007
    1,452 SF
    Medical/Office Building on Roanoke Avenue

    976 Roanoke Avenue, Riverhead, NY 11901

    Professional building suitable for medical, wellness, or general office use.
    • Prime location on Roanoke Avenue with high visibility and strong traffic exposure, near Peconic Bay Medical Center and Route 58 retail corridor.
    • Ideal for medical or professional office use with multiple exam/treatment rooms, reception area potential, and flexible floor plan.
    • Generous 9,500+ SF lot with on‑site parking, private driveway, and expansion potential.
    • Easy access to major roadways including Long Island Expressway (I‑495).
    • Central air conditioning and ADA adaptability potential.
    Updated: Apr 16
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    Riverhead Commercial Property For Sale
    $3,990,000
    1.75 Acres
    Riverhead Commercial Property For Sale

    3225 Sound Ave, Riverhead, NY 11901

    Multi-unit commercial property in Long Island's North Fork wine corridor.
    • Multi‑unit commercial property in Long Island's North Fork wine and agricultural corridor.
    • Includes a fully operating 90‑seat restaurant and a fully operational bar.
    • Features 3 additional retail/office units.
    • Situated on approximately 1.75 acres.
    • Offers ample parking with 2 separate parking lots.
    Updated: Apr 16
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    Riverhead Commercial Property For Sale
    $3,999,000
    1.75 Acres
    Riverhead Commercial Property For Sale

    Multi-unit commercial property in Long Island's North Fork wine corridor.

    3225 Sound Avenue, Riverhead, NY 11901

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    Medical/Office Building on Roanoke Avenue
    $750,000
    1,452 SF
    Medical/Office Building on Roanoke Avenue

    Professional building suitable for medical, wellness, or general office use.

    976 Roanoke Ave, Riverhead, NY 11901

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    Riverhead Office Building For Sale
    $650,000
    2,437 SF
    Riverhead Office Building For Sale

    Two-story office building in downtown Riverhead with parking.

    211 Roanoke Ave, Riverhead, NY 11901

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    Renovated Two-Unit Medical Office Building
    $1,575,000
    3,446 SF
    Renovated Two-Unit Medical Office Building

    Renovated two-unit medical office building with strong income potential and 100% occupancy.

    1190 Old Country Rd, Riverhead, NY 11901

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    Subdividable Commercial Land For Sale
    $7,950,000
    10,000 SF
    Subdividable Commercial Land For Sale

    8 acres of subdividable commercial land in Riverhead, NY.

    845 Raynor Ave, Riverhead, NY 11901

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    Downtown Riverhead Office Building
    $650,000
    Downtown Riverhead Office Building

    Well-maintained office building in downtown Riverhead, high-traffic area.

    616 Roanoke Ave, Riverhead, NY 11901

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    Renovated Office Building in Riverhead
    $1,195,000
    Renovated Office Building in Riverhead

    Professional office building in historic Riverhead district, renovated in 2017.

    21 E Second Street, Riverhead, NY 11901

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    Riverhead Office Space Available
    $550,000
    1,600 SF
    Riverhead Office Space Available

    Office space for sale in Riverhead, NY.

    420 Osborn Ave, Riverhead, NY

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    Commercial Land for Sale/Lease
    $775,000
    0.91 Acres
    Commercial Land for Sale/Lease

    Commercial property or land lease opportunity in high-traffic area.

    Main Rd, Riverhead, NY 11901

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    Based on your search, we've compiled 80 Potential Opportunities for your consideration. Besides 11 Active listings in Riverhead, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 61 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Opportunities in Nearby Cities

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

    Renovated Office Space in Eastport
    Contact for pricing
    Renovated Office Space in Eastport

    2,000 sq ft renovated office space in Eastport, NY.

    500 Montauk Highway, Eastport, NY 11941

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    Westhampton Commercial Investment Opportunity
    $5,250,000
    1.00 Acre
    Westhampton Commercial Investment Opportunity

    13000+/- sq ft, 100% occupied commercial property for sale.

    West Hampton, NY 11977

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    Renovated Office Space in Eastport
    Contact for pricing
    2,000 SF
    Renovated Office Space in Eastport

    2,000 sq. ft. renovated office space in Eastport.

    500 Montauk Hwy, Eastport, NY 11941

    View details
    Westhampton Investment Opportunity
    $5,275,000
    13,000 SF
    Westhampton Investment Opportunity

    13,000+/- sq ft mixed-use property in Westhampton, NY.

    West Hampton, NY 11977

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    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.

    Prime Development Land on Route 25
    $435,000
    0.92 Acres
    Prime Development Land on Route 25

    0.92 acre parcel zoned for diverse commercial uses.

    1124 W Main St, Riverhead, NY 11901

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    Jamesport Commercial Land Opportunity
    $1,250,000
    1.36 Acres
    Jamesport Commercial Land Opportunity

    1.36-acre commercial parcel in Jamesport with development potential.

    1578 Main Rd, Jamesport, NY 11901

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    East Moriches Commercial Land Parcel
    $1,289,000
    1.45 Acres
    East Moriches Commercial Land Parcel

    1.45 acre commercial land with permits pending for wellness space.

    34-41 Montauk Highway, East Moriches, NY 11940

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    Mattituck Land For Sale
    $2,075,000
    2.38 Acres
    Mattituck Land For Sale

    Prime development parcel in Mattituck's business district.

    385 New Suffolk Avenue, Mattituck, NY 11952

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    Off-Market Properties in Riverhead, NY

    Consider similar Off-Market properties in Riverhead, 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.

    100 Ctr Dr
    OFFICE BUILDING
    223,108 SF Lot: 82.70 Acres
    Value Estimation by Request

    100 Ctr Dr, Riverhead, NY 11901-3307

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    33 2nd St
    PROFESSIONAL BUILDING
    10,229 SF Lot: 0.31 Acres
    Estimated value
    $3,025,000

    33 2nd St, Riverhead, NY 11901-2701

    View details
    212 Main St
    OFFICE BUILDING
    4,126 SF Lot: 0.25 Acres
    Estimated value
    $965,000

    212 Main St, Riverhead, NY 11901-2841

    View details
    46 2nd St
    OFFICE BUILDING
    8,894 SF Lot: 4.20 Acres
    Value Estimation by Request

    46 2nd St, Riverhead, NY 11901

    View details
    633 Main St
    OFFICE BUILDING
    2,596 SF Lot: 0.63 Acres
    Value Estimation by Request

    633 Main St, Riverhead, NY 11901-7013

    View details
    1267 Main St
    PROFESSIONAL BUILDING
    8,808 SF Lot: 1.56 Acres
    Estimated value
    $3,180,000

    1267 Main St, Riverhead, NY 11901-2676

    View details
    130 Ostrander Ave
    PROFESSIONAL BUILDING
    1,248 SF Lot: 0.26 Acres
    Value Estimation by Request

    130 Ostrander Ave, Riverhead, NY 11901-4642

    View details
    11-15 2nd St
    PROFESSIONAL BUILDING
    1,311 SF Lot: 0.20 Acres
    Value Estimation by Request

    11-15 2nd St, Riverhead, NY 11901

    View details
    246 Main St
    PROFESSIONAL BUILDING
    2,812 SF Lot: 0.22 Acres
    Estimated value
    $725,000

    246 Main St, Riverhead, NY 11901-2841

    View details
    244 Old Country Rd
    OFFICE BUILDING
    10,000 SF Lot: 1.50 Acres
    Estimated value
    $1,870,000

    244 Old Country Rd, Riverhead, NY 11901-2126

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    400 Ostrander Ave
    OFFICE BUILDING
    5,765 SF Lot: 0.73 Acres
    Estimated value
    $1,110,000

    400 Ostrander Ave, Riverhead, NY 11901-4614

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    737 Roanoke Ave
    PROFESSIONAL BUILDING
    Lot: 0.50 Acres
    Estimated value
    $600,000

    737 Roanoke Ave, Riverhead, NY 11901-2729

    View details
    1224 Ostrander Ave
    PROFESSIONAL BUILDING
    6,912 SF Lot: 0.66 Acres
    Estimated value
    $2,780,000

    1224 Ostrander Ave, Riverhead, NY 11901-2109

    View details

    Riverhead, NY Office Spaces Investment Opportunities Market Analysis

    Explore 72 office spaces for sale in Riverhead, NY, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 20,387 square feet of properties for sale, with an estimated market value of $12,225,007.

    Sale prices for office spaces in Riverhead, NY start at $550,000, averaging $2,037,501, and reaching up to $7,950,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Office Units 18
    Medical Office Space 6
    Office buildings 6
    Coworking space 1

    Demographics Overview

    Population 33K
    Population Growth (5Y) +19.8%
    Median Household Income $83,252
    College Educated 30.4%

    High-Yield Neighborhoods for Investment

    Identify Riverhead submarkets with the highest inventory density on the market and evaluate the median listing prices of real estate assets

    Neighborhood Average Price
    11901 $2.8M

    Taxes & Financing

    Tax Rate (average for all types) 1.24%
    Property Tax per SF $36.26 per sq ft
    Tax Rate vs County Average 0.27 pp above county avg
    Average Loan-to-Value 65.0%

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