Deep River, CT Office Units for Rent & Lease

Updated: Aug 6, 2025

Killingworth Professional Office Space Available

255 Route 80 #208, Killingworth, CT 06419

$1,125/Mo

750 sqft

Premiere Professional Office Center location at the intersection of Route 80 and 81.
Rent includes all utilities and CAM charges.
Abundant natural light due to southeast‑facing orientation.
Convenient access to I‑95 (Exit 63) and Clinton Crossings Outlet Center.
Elevator access and common bathrooms.

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Updated: Aug 6, 2025

Professional Office Space Available

255 Route 80 #207, Killingworth, CT 06419

$900/Mo

540 sqft

Prime location at the intersection of Route 80 and 81, Killingworth's Premiere Professional Office Center.
Rent includes all utilities and CAM charges, simplifying budgeting.
Ample natural light due to north/east facing orientation.
Elevator access in a well‑maintained building.
Convenient access to I‑95 (Exit 63) and Clinton Crossings Outlet Center.

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Functional Office Space For Lease

8 Route 80 #1, Killingworth, CT 06419

$1,150/Mo

1,800 sqft 1.92 AC lot

1,800 sq ft office space with a well-designed layout.

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Killingworth Office/Retail Space For Rent

176 Route 81, Killingworth, CT 06419

$975/Mo

14,107 sqft 3.20 AC lot

Office and retail spaces available in Killingworth's 'The Courtyard'!

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Office Suite with Kitchen

8 Rte 80, Killingworth, CT 06419

Contact for pricing

1,800 sqft

Well-designed 1,800 SF office suite with multiple enclosed offices, conference space, and a full kitchen.

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Functional Office Space For Lease

Deep River, CT 06419

$1,150/Mo

1.92 AC lot

1,800 sq ft office space with a well-designed layout.

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Based on your search, we've compiled 11 Potential Opportunities for your consideration. Besides 6 Active listings in Deep River, CT, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 1 Properties for Sales.

Office Units for Lease in Nearby Cities

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

Warehouse/Retail Space with Office

27 W Main St, Clinton, CT 06413

$3,500/Mo

6,115 sqft 0.37 AC lot

6,115 SF warehouse/retail space with office and basement.

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Three-Level Flex Space with Loading Dock

27- B West Main St, Clinton, CT 06413

$3,500/Mo

6,115 sqft

Warehouse, retail, office, and basement areas provide a versatile commercial configuration.

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Professional Office Space Available

90 Wall Street, Madison, CT 06443

Contact for pricing

1,921 sqft

1,921 SF office space for lease near downtown Madison.

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Central Air Office Space

96 Wall St, Madison, CT 06443

Contact for pricing

1,921 sqft

Professional office suite with central air, high-end finishes, and ample parking in a lighted lot.

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Similar Spaces for Sale in Deep River, CT

Consider Similar Space for Sale. We found 1 Spaces matching your search parameters.

Two-Story Flex Space

124 Main Street Unit 3, Deep River, CT 06417

Contact for pricing

1,400 sqft

Flexible commercial layout with an entry-level reception area, private office, bathroom, and open lower floor overlooking Keyboard Pond.

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Deep River, CT Office Units Lease Rates & Market Statistics

Browse 6 Office Units for lease in Deep River, CT on Realmo, a commercial real estate marketplace serving the Deep River area. The current inventory totals 18,997 square feet of properties.

Asking lease rates for Office Units in Deep River start at $7.67 SF/Yr, average $15.22 SF/Yr, and reach $20 SF/Yr at the top of the market. That's a 3x spread between entry-level and premium space, making side-by-side comparison of asking rents and lease terms essential. The local average of $15.22 SF/Yr is 27% below the Connecticut state average of $20.79 SF/Yr.

Deep River accounts for 4% of the 134 office units currently available across Middlesex County, where nearby markets include Middletown and Old Saybrook. Office Units make up 100% of the 6 Office Spaces currently for lease in Deep River, with asking rates in line with the citywide Office Spaces average.