Deep River, CT Office Spaces 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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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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Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center

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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Flex Space with Warehouse Doors

F-8 Route 80, Killingworth, CT 06419

$10 SF/Yr

Industrial flex space pairs first-floor offices with warehouse functionality and expansion potential.

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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 12 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 2 Properties for Sales.

Office Spaces for Lease in Nearby Cities

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

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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Class A Office Space Available

3 Inspiration Ln 1, Chester, CT 06412

$5,500/Mo

4,000 sqft 8.37 AC lot

Move-in ready office space with no CAM charges and ample parking.

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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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Single-Level Office Units

3 Inspiration Lane, Chester, CT 06412

$5,500/Mo

4,000 sqft 8.37 AC lot

Updated professional office space with private rooms, shared meeting areas, central air, and extensive on-site parking.

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Similar Spaces for Sale in Deep River, CT

Consider Similar Space for Sale. We found 2 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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Mixed-Use Colonial with Garage

1 High St, Deep River, CT 06417

Contact for pricing

An adaptable first floor and separately entered residential level support varied mixed-use occupancy.

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Deep River, CT Office Spaces Lease Rates & Market Statistics

Browse 6 Office Spaces for lease in Deep River, CT on Realmo, a commercial real estate marketplace serving the Deep River area. The current inventory totals 17,197 square feet of properties.

Asking lease rates for Office Spaces in Deep River start at $10 SF/Yr, average $16 SF/Yr, and reach $20 SF/Yr at the top of the market. Pricing across the market is relatively uniform, which simplifies like-for-like comparison between listings. The local average of $16 SF/Yr is 25% below the Connecticut state average of $21.24 SF/Yr.

Deep River accounts for 4% of the 163 office spaces currently available across Middlesex County, where nearby markets include Middletown and Old Saybrook.