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Middlesex County, CT Commercial Real Estate for Lease

231 results
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Old Saybrook Commercial Space Available
$3,500 / Mo
2,400 SF

Old Saybrook Commercial Space Available

87 Spencer Plain Rd, Old Saybrook, CT 06475

Commercial space for lease in Old Saybrook, Connecticut.

  • 4 bays offer significant operational space.
  • Approximately 2,400 sq ft provides ample room.
  • 3 walk‑in doors enhance accessibility.
  • 30' x 36' hoop house included.
  • Equipped for air compressor and welder.
Updated: Jan 16
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Middletown Office Space for Lease
$500 / Mo
4,780 SF

Middletown Office Space for Lease

46 Washington St, Middletown, CT 06457

Well-lit office spaces in the heart of Middletown available for rent.

  • Prime location in the heart of Middletown, walking distance to City Hall, courthouse, dining, shopping, and community events.
  • Flexible rental options: yearly, monthly, or daily basis.
  • Off‑street parking available for tenants and visitors.
  • Remodeled kitchen with stainless steel appliances and new coffee machine.
  • Handicap accessible with a ramp to the first floor from the parking lot.
Updated: Sep 8, 2025
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Commercial Space in Antique Building
$3,500 / Mo
2,035 SF

Commercial Space in Antique Building

ADA-compliant commercial space with parking, utilities included, and high visibility.

78 Main St, Essex, CT 06409
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Updated Office Space For Lease
$1,450 / Mo
1,200 SF

Updated Office Space For Lease

Clean, updated 1,200 SF office space for lease.

123 Elm St, Old Saybrook, CT 06475
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Commercial Kitchens with Greenhouse
$2,500 / Mo
4,834 SF

Commercial Kitchens with Greenhouse

Commercial kitchens for lease including office, basement, and greenhouse.

78 Main St, Essex, CT 06409
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Updated Office Space Available Now
$1,450 / Mo
855 SF

Updated Office Space Available Now

Versatile 855 SF office space for immediate occupancy.

670 Newfield St, Middletown, CT 06457
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Essex Office Space For Lease
$9 SF/Yr
9,864 SF

Essex Office Space For Lease

Office space in prime Essex location with flexible floor plan.

10 Bokum Rd, Essex, CT 06426
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Middletown Retail/Office Space Available
$17 SF/Yr
775 SF

Middletown Retail/Office Space Available

Prime retail/office space in high-traffic area, ready for your business.

701 SOUTH Main Street Ext, Middletown, CT 06457
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Essex Commercial Space For Lease
$14 SF/Yr
15,316 SF

Essex Commercial Space For Lease

Highly visible Essex commercial space suitable for multiple uses.

192 Westbrook Rd, Essex, CT 06426
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Renovated Office Space in Essex
$1,100 / Mo
1,000 SF

Renovated Office Space in Essex

Bright, open office space in the heart of Essex Village.

5 Essex Sq, Essex, CT 06426
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Unique Retail Space in Cromwell
$1,600 / Mo
850 SF

Unique Retail Space in Cromwell

Retail space for lease in a unique Cromwell location.

309 Main St, Cromwell, CT 06416
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Essex Commercial Space For Lease
$7 SF/Yr
21,000 SF

Essex Commercial Space For Lease

Industrial, warehouse, and office space with ample parking available.

11 Bokum Rd, Essex, CT 06426
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Essex Office Space For Lease
$950 / Mo
700 SF

Essex Office Space For Lease

700 sqft office suite available in Essex Village.

12 Main St, Essex, CT 06442
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Unique Commercial Space in Cromwell
$2,100 / Mo
1,200 SF

Unique Commercial Space in Cromwell

Retail/office space in a unique location, must see!

309 Main St, Cromwell, CT 06416
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Updated Retail Space in Middletown
$1,675 / Mo
1,200 SF

Updated Retail Space in Middletown

Recently updated 1,200 SF retail space for lease.

650 South Main Street Ext, Middletown, CT 06457
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Essex Office Space For Lease
$9 SF/Yr
9,864 SF

Essex Office Space For Lease

Office space in prime Essex location with flexible floor plan.

10 Bokum Rd, Essex, CT 06426
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Essex Village Office Space Available
$1,950 / Mo
1,400 SF

Essex Village Office Space Available

Office space in the heart of Essex Village for lease.

28B Main St, Essex, CT 06426
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Industrial Space in Deep River
$2,300 / Mo
2,000 SF

Industrial Space in Deep River

2000 sq ft industrial space for lease in Deep River.

900 Industrial Park Rd, Deep River, CT 06417
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Move-In Ready Class A Office
$5,500 / Mo
4,000 SF

Move-In Ready Class A Office

4,000 SF Class A office space available for lease.

3 Inspiration Ln, Chester, CT 06412
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Old Saybrook Office Space For Lease
$2,800 / Mo
1,440 SF

Old Saybrook Office Space For Lease

Open office space with kitchen and bath in Old Saybrook.

5 Barnes Ave, Old Saybrook, CT 06475
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Historic Office Building in Essex
$13 SF/Yr
12,600 SF

Historic Office Building in Essex

Unique office space with river views, close to Essex Village.

31 North Main St, Essex, CT 06426
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Industrial Space in Deep River
$2,300 / Mo
2,000 SF

Industrial Space in Deep River

2000 SF industrial space with overhead door and ample parking.

900 Industrial Park Rd, Deep River, CT 06417
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Retail Space in Deep River
$950 / Mo
700 SF

Retail Space in Deep River

First floor retail space available for lease in Deep River.

171 Main St, Deep River, CT 06417
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Updated Office Space For Lease
$1,600 / Mo
1,200 SF

Updated Office Space For Lease

Updated office space with storage in convenient location.

123 Elm St, Old Saybrook, CT 06475
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Middlesex County, CT Commercial Real Estate Leasing Opportunities Market Analysis

Explore Commercial Real Estate leasing options in Middlesex County, CT with 446 listings featured on our commercial real estate exchange. The current inventory includes 41,697,548,640 square feet of properties with an estimated lease value of $2,092 /Mo.

Estimated lease rates for Commercial Real Estate in Middlesex County, CT begin at $0.83 SF/Yr, with an average of $15 SF/Yr and extend to $74 SF/Yr.

In Middlesex County, CT, current lease rates show:

  • Office Properties & Spaces positioned at $15
  • Office space measuring $15
  • Retail properties assessed at $16
  • Individual retail properties calculated at $17
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