Riverhead, NY Office Spaces for Sale

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21 properties

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Updated: Sep 1

Renovated Mixed-Use Property with Apartment

1228 Roanoke Avenue, Riverhead, NY 11901

$725,000

0.21 AC lot

Renovated mixed‑use building with professional office areas and a legal one‑bedroom apartment
Professional Business zoning; residential conversion may be possible with proper permits
Upper‑level apartment includes a separate entrance, hardwood floors, stainless appliances, central air, and natural gas heat
0.21‑acre parcel with detached garage plus driveway, off‑street, parking lot, and street parking
Full basement provides clean, dry storage space

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Updated: Sep 2

Office Building with Private Offices

225 Howell Avenue, Riverhead, NY 11901

$1,400,000

0.61 AC lot

Eight private offices plus an open cubicle area
Conference room and full kitchen
Twenty plus on‑site parking spots
0.61‑acre site at 225 Howell Avenue
Brick building constructed in 1962

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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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See what stands out in Suffolk County

We check every for-sale listing in the county against comparable properties across the country. Most price about where you would expect. A few are worth a second look.

We check every listing here. A few are worth a second look.

Cap Rate available after sign in

NOI available after sign in

Local Demand available after sign in

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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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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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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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.

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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

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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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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Two-Unit Office Building

1190 Old Country Rd, Riverhead, NY 11901

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3,446 sqft

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

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Renovated Live-Work Building

1228 Roanoke Ave, Riverhead, NY 11901

$725,000

Professional Business zoning supports office use with a separate residential apartment above.

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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

845 Raynor Ave, Riverhead, NY 11901

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10,000 sqft 8.00 AC lot

8 acres of subdividable commercial land in Riverhead, NY.

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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

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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Leased Office Complex

526 E Main Street Unit #518, Riverhead, NY 11901

$5,250,000

Three-building commercial property with professional office space, on-site parking, and a location near downtown amenities.

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Freestanding Office Building with Drive-Through

1201 Ostrander Ave, Riverhead, NY 11901

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4,510 sqft 1.50 AC lot

Two-level office property with on-site parking, signage, and an approved drive-through configuration.

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Historic Office Building

218 Griffing Avenue, Riverhead, NY 11901

$625,000

Two-level professional property with flexible room layouts, rear parking, and a detached garage.

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Mixed-Use Property with Signage

3951 Lake Avenue, Riverhead, NY 11901

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Commercial property positioned near Downtown Riverhead and Suffolk Community College with Lake Avenue signage.

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Renovated Office Building

1303 Roanoke Ave, Riverhead, NY 11901

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Fully renovated professional building near retail, medical, and office activity.

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Based on your search, we've compiled Potential Opportunities for your consideration. Besides 21 Active Listings in Riverhead, NY, we suggest to view alternatives - similar 51 Off-Market properties to explore as potential leads.

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.

OFFICE BUILDING

100 Ctr Dr, Riverhead, NY 11901-3307

Value Estimation by Request

223,108 sqft 82.70 AC lot

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PROFESSIONAL BUILDING

33 2nd St, Riverhead, NY 11901-2701

$360,000

Estimated value

10,229 sqft 0.31 AC lot

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OFFICE BUILDING

212 Main St, Riverhead, NY 11901-2841

$1,000,000

Estimated value

4,126 sqft 0.25 AC lot

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Riverhead, NY Office Spaces Market Trends and Statistics

Explore 72 office spaces for sale in Riverhead, NY, showcased through 21 active listings on our real estate platform. These investment opportunities span a total of 70,516 square feet of properties for sale, with an estimated market value of $30,895,014.

Sale prices for office spaces in Riverhead, NY start at $625,000, averaging $2,206,786, and reaching up to $6,495,000 — 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

Commercial property segments ranked by active listings on the market

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 average listing prices of real estate assets

Neighborhood	Average Price
11901	$2.5M

Taxes & Financing

Tax Rate (average for all types) 1.24%

Property Tax per SF $36.26 per SF

Tax Rate vs County Average 0.27 pp above county avg

Average Loan-to-Value 65.0%

Listings Trend

New vs delisted commercial listings in Suffolk County

New Delisted

Total CRE Inventory on Market (SF)

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