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    Riverhead, NY Office Properties & Spaces for Sale

    9 results
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    Riverhead Commercial Property For Sale
    $3,999,000
    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 featuring a restaurant, bar, and retail/office spaces.
    • Located in the scenic North Fork wine and agricultural corridor.
    • Approximately 1.75 acres with two separate parking lots.
    • Fully operating 90‑seat restaurant.
    • High visibility on Sound Ave.
    Updated: Jan 31
    View details
    Renovated Office Complex on Route 25
    $2,200,000
    7,000 SF

    Renovated Office Complex on Route 25

    189 Rte 25/Main Rd, Riverhead, NY 11901

    Two renovated office buildings totaling 7,000 SF on 2.52 acres.

    • Fully renovated office complex: approximately 7000 sq ft across two buildings.
    • Prime location on NYS Route 25/Main Road, east of County Rte 105, gateway to North and South Forks.
    • RLC zoning allows for a wide range of uses, ideal for professional or satellite offices.
    • Features 7 bathrooms, central air, gas heat/hot water, town water, and private septic on 2.52 acres with expansion potential.
    • Abundant customer and employee parking.
    Updated: Oct 29, 2025
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    Affordable Office Building on Main
    $698,000
    2,000 SF

    Affordable Office Building on Main

    Two-story office building near transit-oriented development and local amenities.

    230 W Main Rd, Riverhead, NY 11901
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    Riverhead Commercial Building Near Courts
    $898,000
    3,000 SF

    Riverhead Commercial Building Near Courts

    3,000 sq ft commercial building near courts in Riverhead, NY.

    145 Griffing Ave, Riverhead, NY 11901
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    Riverhead Commercial Land For Sale
    $775,000

    Riverhead Commercial Land For Sale

    Commercial property for sale or land lease in Riverhead, NY.

    25/58 Main Rd Rte, Riverhead, NY 11901
    View details
    Medical Office Building on Old Country Road
    $1,750,000
    3,446 SF

    Medical Office Building on Old Country Road

    Two-unit medical office building in Riverhead, ideal for owner/user.

    1190 Old Country Rd, Riverhead, NY 11901
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    Riverhead Office Space Available
    Contact for pricing
    1,600 SF

    Riverhead Office Space Available

    Office space for sale in Riverhead, NY.

    420 Osborn Ave, Riverhead, NY 11901
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    7 Bathrooms
    $2,095,000
    7,000 SF

    7 Bathrooms

    Gas Heat\/Hot Water

    Rd, Riverhead, NY 11901
    View details
    Prime Aquebogue Office Building
    $1,650,000
    5,338 SF

    Prime Aquebogue Office Building

    1.5-Acre Office Building, High Income Potential

    508 Main Rd, Riverhead, NY 11901
    View details
    Based on your search, we've compiled 109 Potential Opportunities for your consideration. Besides 9 Active listings in Riverhead, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 93 Off-Market properties to explore as potential leads, plus 3 Land Listings that present a potential for development.

    Explore Opportunities in Nearby Cities

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

    Office/Retail Lot on Route 25
    Contact for pricing

    Office/Retail Lot on Route 25

    0.67 acre lot with approved plans for office/retail.

    1695-1697 Rte, Ridge, NY 11961
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    Route 25 Commercial Property
    Contact for pricing
    0.67 Acres

    Route 25 Commercial Property

    Ridge, NY Retail & Office Opportunity

    1695-1697 Rte 25, Ridge, NY 11961
    View details
    Versatile Property with Approvals Secured
    $950,000
    5,086 SF

    Versatile Property with Approvals Secured

    Adaptable property suitable for various uses with existing approvals.

    21 Old Montauk Hwy, Mastic, NY 11950
    View details
    Office/Retail Building on Montauk Highway
    $1,750,000

    Office/Retail Building on Montauk Highway

    High-traffic location with four rentable spaces and ample parking.

    1360 Montauk Hwy, Mastic, NY 11950
    View details

    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.

    Commercial Land in High Traffic Area
    $775,000
    1.00 Acre

    Commercial Land in High Traffic Area

    Commercial land for sale or land lease in Riverhead, NY.

    25/58 Main Rd Rte, Riverhead, NY 11901
    View details
    Commercial Lot in Riverhead, NY
    $448,000
    0.16 Acres

    Commercial Lot in Riverhead, NY

    Vacant commercial lot suitable for various businesses and development.

    230 B W Main, Riverhead, NY 11901
    View details
    Riverhead Commercial Land For Sale
    $775,000

    Riverhead Commercial Land For Sale

    Commercial property for sale or land lease in Riverhead, NY.

    25/58 Main Rd Rte, Riverhead, NY 11901
    View details

    Explore 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

    100 Ctr Dr

    OFFICE BUILDING • 223,108 SF
    Value Estimation by Request
    100 Ctr Dr, Riverhead, NY 11901-3307
    View details
    110 Frg Rd

    110 Frg Rd

    OFFICE BUILDING • 126,936 SF
    Value Estimation
    $37,980,000
    110 Frg Rd, Riverhead, NY 11901
    View details
    700 Main Rd

    700 Main Rd

    OFFICE BUILDING • 1,144 SF
    Value Estimation by Request
    700 Main Rd, Riverhead, NY 11901-5705
    View details
    1186 Main St

    1186 Main St

    OFFICE BUILDING • 2,640 SF
    Value Estimation
    $570,000
    1186 Main St, Riverhead, NY 11901
    View details
    400 Ostrander Ave

    400 Ostrander Ave

    OFFICE BUILDING • 5,765 SF
    Value Estimation
    $1,110,000
    400 Ostrander Ave, Riverhead, NY 11901-4614
    View details
    20 Riverleigh Ave

    20 Riverleigh Ave

    OFFICE BUILDING • 4,410 SF
    Value Estimation
    $790,000
    20 Riverleigh Ave, Riverhead, NY 11901-3674
    View details
    632 Roanoke Ave

    632 Roanoke Ave

    PROFESSIONAL BUILDING • 2,271 SF
    Value Estimation by Request
    632 Roanoke Ave, Riverhead, NY 11901-2728
    View details
    840 County Rd

    840 County Rd

    Lifestyle centers • 11,000 SF
    Value Estimation by Request
    840 County Rd, Riverhead, NY 11901
    View details
    23 2nd St

    23 2nd St

    OFFICE BUILDING • 6,242 SF
    Value Estimation
    $1,125,000
    23 2nd St, Riverhead, NY 11901
    View details
    155 Flanders Rd

    155 Flanders Rd

    OFFICE BUILDING • 818 SF
    Value Estimation by Request
    155 Flanders Rd, Riverhead, NY 11901-3715
    View details
    177 Old Country Rd

    177 Old Country Rd

    OFFICE BUILDING • 2,300 SF
    Value Estimation
    $840,000
    177 Old Country Rd, Riverhead, NY 11901-2119
    View details
    254 Old Country Rd

    254 Old Country Rd

    OFFICE BUILDING • 1,365 SF
    Value Estimation by Request
    254 Old Country Rd, Riverhead, NY 11901-2198
    View details
    631 Old Country Rd, Unit 639

    631 Old Country Rd, Unit 639

    PROFESSIONAL BUILDING • 5,625 SF
    Value Estimation
    $1,405,000
    631 Old Country Rd, Riverhead, NY 11901-2103
    View details
    1295 Pulaski St

    1295 Pulaski St

    OFFICE BUILDING • 8,940 SF
    Value Estimation
    $2,495,000
    1295 Pulaski St, Riverhead, NY 11901-4821
    View details
    1146 Woodcrest Ave

    1146 Woodcrest Ave

    MEDICAL CLINIC • 55,126 SF
    Value Estimation
    $7,160,000
    1146 Woodcrest Ave, Riverhead, NY 11901-2016
    View details

    Riverhead, NY Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 102 office properties & spaces for sale in Riverhead, NY, showcased through 9 active listings on our real estate platform. These investment opportunities span a total of 3,031,780 square feet of properties for sale, with an estimated market value of $66,560,000.

    Sale prices for office spaces in Riverhead, NY start at $110,000, averaging $1,280,000, and reaching up to $21,610,000 — 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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    Browse Office properties & Spaces for Sale Near Riverhead, NY

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