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    Riverhead, NY Office Spaces for Lease

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    Furnished Corner Office Suite
    Updated: Aug 14
    Furnished Corner Office Suite

    80 W Main Street, Riverhead, NY 11901

    $2,500/Mo
    480 Sqft furnished corner office suite
    Three private offices plus a waiting room
    Elevator‑served brick building on Main Street in downtown Riverhead
    Electricity, heat, and cooling included
    Free municipal parking available
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    Office Unit with Conference Room
    Updated: May 5
    Office Unit with Conference Room

    224 Griffing Avenue, Riverhead, NY 11901

    $1,200/Mo
    0.12 AC lot
    Office unit within an operating law office
    Conference room access included
    Heating, air conditioning, and electric included in the lease
    Across from Suffolk County Riverhead Courthouse
    Near Riverhead Town Hall and train station
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    Renovated Office Unit
    Renovated Office Unit

    189 Main- Suite A Road, Riverhead, NY 11901

    $4,700/Mo
    2.52 AC lot

    Fully built-out space offers private offices, workstations, natural light, and customer and employee parking.

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    Mixed-Use Building with Divisible Space
    Mixed-Use Building with Divisible Space

    3225 Sound Ave, Riverhead, NY 11901

    $5,000/Mo
    2,960 sqft 1.75 AC lot

    One-story commercial property with two bathrooms and a flexible layout for retail, office, or professional use.

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    Storefront Office Unit
    Storefront Office Unit

    34b-40 Peconic Ave, Riverhead, NY 11901

    $1,800/Mo
    200 sqft

    Professional workspace includes shared conference, training, and kitchen facilities.

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    Riverhead Office Space For Lease
    Riverhead Office Space For Lease

    180 Old Country Rd, Riverhead, NY 11901

    $4,984/Mo
    1,506 sqft

    1,506 SF office space in busy shopping center.

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    Historic Office Building with Attic
    Historic Office Building with Attic

    1586 Main Rd, Riverhead, NY 11901

    $4,000/Mo

    Multi-level layout includes offices, a kitchen, bathrooms, storage, an attic, and a basement.

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    Renovated Historic Post Office Office
    Renovated Historic Post Office Office

    21 W 2nd Street, Riverhead, NY 11901

    $950/Mo

    Light, bright professional office space in a renovated historic post office, zoned DC-3 for an office-focused setup.

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    Furnished Offices and Shared Workstations
    Furnished Offices and Shared Workstations

    30 W Main St 207, Riverhead, NY 11901

    $750/Mo per office

    Furnished offices and workstations in downtown Riverhead with included utilities.

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    Fully Renovated Office Suite
    Fully Renovated Office Suite

    A-189 Main Rd, Riverhead, NY 11901

    $4,700/Mo

    Fully renovated office suite with central air, gas heat, private offices, and two private bathrooms.

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    Based on your search, we've compiled 38 Potential Opportunities for your consideration. Besides 10 Active listings in Riverhead, NY, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 20 Properties for Sales.

    Office Spaces for Lease in Nearby Cities

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

    Flex Space with Shop and Office
    Flex Space with Shop and Office

    West Hampton Beach, NY 11978

    $6,000/Mo

    Commercial/industrial space combines functional workspace, a dedicated office, and two bathrooms.

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    Flex Space with Office Area
    Flex Space with Office Area

    West Hampton Beach, NY 11978

    $6,000/Mo

    Functional commercial workspace combines a substantial shop area with dedicated administrative space and two bathrooms.

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    Historic Office Building
    Historic Office Building

    1586 Main Road, Jamesport, NY 11947

    $4,000/Mo

    Two-level office configuration with kitchen, bathrooms, storage, attic, and basement areas.

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    Historic Office Building
    Historic Office Building

    1586 Main Road, Jamesport, NY 11947

    $4,000/Mo

    Well-maintained historic office building offering two floors with multiple rooms, plus kitchen and bathroom facilities.

    View details

    Similar Spaces for Sale in Riverhead, NY

    Consider Similar Space for Sale. We found 20 Spaces matching your search parameters.

    Renovated Two-Unit Medical Office Building
    Renovated Two-Unit Medical Office Building

    1190 Old Country Rd, Riverhead, NY 11901

    $1,575,000
    3,446 sqft

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

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    Medical/Office Building on Roanoke Avenue
    Medical/Office Building on Roanoke Avenue

    976 Roanoke Avenue, Riverhead, NY 11901

    $750,007
    1,452 sqft 0.22 AC lot

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

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    Two-Story Office Building
    Two-Story Office Building

    1465 ROANOKE AVE, Riverhead, NY 11901

    $650,000
    2,437 sqft 0.14 AC lot

    Downtown commercial setting with private parking, public utilities, and DC-3 zoning.

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    Medical Office Building with Parking
    Medical Office Building with Parking

    976 Roanoke Avenue, Riverhead, NY 11901

    $750,007
    0.22 AC lot

    Flexible professional layout includes treatment rooms, private offices, two bathrooms, and central air conditioning.

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    Mixed-Use Building with Retail
    Mixed-Use Building with Retail

    71 E MAIN ST, Riverhead, NY 11901

    Contact for pricing
    14,990 sqft 0.21 AC lot

    Ground-floor retail is combined with second-floor office space that may support residential conversion.

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    Mixed-Use Retail and Office Building
    Mixed-Use Retail and Office Building

    53 East Main Street, Riverhead, NY 11901

    Contact for pricing
    13,997 sqft 0.07 AC lot

    Three ground-floor retail spaces with second-floor office space in walkable downtown Riverhead.

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    Two-Unit Office Building
    Two-Unit Office Building

    1190 Old Country Rd, Riverhead, NY 11901

    Contact for pricing
    3,446 sqft

    Two-unit office building totaling 3,446 SF, built in 1959 and renovated, zoned SC.

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    NNN Office Investment Property
    NNN Office Investment Property

    33 W 2nd St, Riverhead, NY 11901

    $6,495,000
    26,235 sqft

    Single-tenant office asset with a new long-term NNN lease and elevator access.

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    Two-Story Mixed-Use Building
    Two-Story Mixed-Use Building

    41 E Main St, Riverhead, NY 11901

    Contact for pricing
    4,000 sqft 0.05 AC lot

    Ground-floor occupancy combines with partially leased upper-level space for an owner-user or investor configuration.

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    Subdividable Commercial Land For Sale
    Subdividable Commercial Land For Sale

    845 Raynor Ave, Riverhead, NY 11901

    Contact for pricing
    10,000 sqft 8.00 AC lot

    8 acres of subdividable commercial land in Riverhead, NY.

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    Renovated Mixed-Use Property with Loft
    Renovated Mixed-Use Property with Loft

    1550 Main Road, Riverhead, NY 11901

    $825,000
    0.12 AC lot

    Renovated storefront and residence with private parking, unfinished loft space, and flexible live-work potential.

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    Fully Leased Office Complex
    Fully Leased Office Complex

    518-526 E Main St, Riverhead, NY 11901

    $5,250,000

    Three-building property with professional suites and on-site parking near downtown attractions.

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    7-Unit Office Complex
    7-Unit Office Complex

    526 E Main St 518, Riverhead, NY 11901

    $5,250,000

    Fully leased office complex with three buildings, convenient downtown access, and 95 parking spaces.

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    Historic Mixed-Use Building
    Historic Mixed-Use Building

    218 Griffing Avenue, Riverhead, NY 11901

    $625,000
    0.21 AC lot

    Two-level property with office and residential use history, rear parking, detached garage, and public water and sewer.

    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 Development Site
    Commercial Land Development Site

    1467 Montauk Highway, Mastic, NY 11967

    $2,500/Mo
    0.55 AC lot

    Vacant commercial parcel with public water and capacity for a new building.

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    Prime Land for Ground Lease
    Prime Land for Ground Lease

    Shirley, NY 11967

    Contact for pricing
    0.46 AC lot

    20,245 sq ft land in high-traffic retail corridor.

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    Prime Retail Corridor Land Lease
    Prime Retail Corridor Land Lease

    550 William Floyd Parkway, Shirley, NY 11967

    $10,000/Mo
    0.46 AC lot

    20,245 sq ft land for lease in Shirley, NY.

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    Corner Commercial Land
    Corner Commercial Land

    574 Montauk Highway, Shirley, NY 11967

    $1,500/Mo
    0.18 AC lot

    A compact parcel fronts a busy roadway and has public water available.

    View details

    Riverhead, NY Office Spaces Lease Rates & Market Statistics

    Explore 10 Office Spaces for lease in Riverhead, NY on Realmo, a commercial real estate exchange covering the Riverhead area. The current inventory totals 4,666 square feet of properties — an average of ~450 SF per listing.

    Office Spaces lease rates in Riverhead range from $20.27 SF/Yr at the entry level to $108 SF/Yr at the top of the market, averaging $55.99 SF/Yr. That's a 5x spread between entry-level and premium space, making side-by-side comparison of asking rents and lease terms essential. The local average of $55.99 SF/Yr is 74% above the New York state average of $32.17 SF/Yr.

    Riverhead accounts for 2% of the 498 office spaces currently available across Suffolk County, where nearby markets include Melville and Huntington.

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