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Trefoil Park 55 Corporate Dr 1,500 - 35,737 SF of Office Space Available in Trumbull, CT 06611

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Highlights

  • 55 Corporate Drive within Trumbull’s Trefoil Corporate Park presents premier office space with a scenic view of the lush greenery and woodlands.
  • Move-in-ready and adaptable office suites are available, catering to various professional sizes and needs.
  • 23 miles from Yale University, supplying a highly educated workforce in the area with a focus on education, health services, and business services.
  • Corporate Drive location offers access to Monroe Turnpike, less than 1 mile from SR 25, 5.5 miles from the Merritt Parkway, & 14 minutes from Amtrak.
  • Features abundant surface parking, dedicated on-site property management, and lots of natural light throughout the interior.
  • Operated by Trefoil Park Properties, a family-owned real estate company committed to high-quality office space and experiences.

All Available Spaces(4)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Condition
  • Available
  • 1st Floor
  • 1,500-12,000 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Beautiful large windows looking out onto serene wooded areas that draw the outdoors in. Double-glass lobby doors provide an impressive entrance. Up to 12,000 square feet is available.

  • Fully Built-Out as Standard Office
  • Space is in Excellent Condition
  • Mostly Open Floor Plan Layout
  • Central Air Conditioning
  • 2nd Floor, Ste 210
  • 16,425 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Unique move-in-ready opportunity: 16,500-square-foot, full-floor office with 21 private offices, 31 oversized Steelcase workstations, five to seven conference rooms, a break room, and a reception.

  • Fully Built-Out as Standard Office
  • 21 Private Offices
  • 31 Workstations
  • Central Air Conditioning
  • Fully built-out including oversized workstations
  • Training Rooms
  • Open Floor Plan Layout
  • 4 Conference Rooms
  • Space is in Excellent Condition
  • Green views and natural light
  • Conference Rooms
  • Kitchen and break room
  • 3rd Floor, Ste 301
  • 1,727-4,902 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • April 01, 2026

This suite has the option to divide or combine. It may be combined with Suite 310 for a total of 7,312 square feet.

  • Expansive green views over distant hills
  • Western exposure
  • Recently building upgrades
  • Large windows provide ample light
  • Onsite Property Manager/Family owned and operated
  • 3rd Floor, Ste 310
  • 2,410 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Beautiful move-in-ready space with glass-walled offices (four) and a conference room, plus a bullpen. Polished concrete floors and a kitchenette/lounge make this an ideal space for any professional office. It may be combined with Suite 301 to create a suite of up to 7,312 square feet.

  • Fully Built-Out as Standard Office
  • 4 Private Offices
  • High End Trophy Space
  • Green views and natural light
  • Open Floor Plan Layout
  • 1 Conference Room
  • Central Air Conditioning
  • Fully built-out
Space Size Term Rental Rate Space Use Condition Available
1st Floor 1,500-12,000 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 210 16,425 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
3rd Floor, Ste 301 1,727-4,902 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - April 01, 2026
3rd Floor, Ste 310 2,410 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now

1st Floor

Size
1,500-12,000 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 210

Size
16,425 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

3rd Floor, Ste 301

Size
1,727-4,902 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
-
Available
April 01, 2026

3rd Floor, Ste 310

Size
2,410 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor

Size 1,500-12,000 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Beautiful large windows looking out onto serene wooded areas that draw the outdoors in. Double-glass lobby doors provide an impressive entrance. Up to 12,000 square feet is available.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Central Air Conditioning

2nd Floor, Ste 210

Size 16,425 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Unique move-in-ready opportunity: 16,500-square-foot, full-floor office with 21 private offices, 31 oversized Steelcase workstations, five to seven conference rooms, a break room, and a reception.

  • Fully Built-Out as Standard Office
  • Open Floor Plan Layout
  • 21 Private Offices
  • 4 Conference Rooms
  • 31 Workstations
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Green views and natural light
  • Fully built-out including oversized workstations
  • Conference Rooms
  • Training Rooms
  • Kitchen and break room

3rd Floor, Ste 301

Size 1,727-4,902 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition -
Available April 01, 2026

This suite has the option to divide or combine. It may be combined with Suite 310 for a total of 7,312 square feet.

  • Expansive green views over distant hills
  • Large windows provide ample light
  • Western exposure
  • Onsite Property Manager/Family owned and operated
  • Recently building upgrades

3rd Floor, Ste 310

Size 2,410 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Beautiful move-in-ready space with glass-walled offices (four) and a conference room, plus a bullpen. Polished concrete floors and a kitchenette/lounge make this an ideal space for any professional office. It may be combined with Suite 301 to create a suite of up to 7,312 square feet.

  • Fully Built-Out as Standard Office
  • Open Floor Plan Layout
  • 4 Private Offices
  • 1 Conference Room
  • High End Trophy Space
  • Central Air Conditioning
  • Green views and natural light
  • Fully built-out

Property Overview

Colliers is proud to offer move-in-ready and adjustable office suites and floor plates at 55 Corporate Drive, a three-story office building within the Trefoil Corporate Park. Office features at 55 Corporate Drive include multiple private offices, oversized Steelcase workstations, multiple conference rooms, glass walls, polished concrete floors, and a kitchenette. Additionally, the first floor features a double-glass door lobby entry, leading to a divisible space with large windows and wooded views. Business commuters on Corporate Drive can access Monroe Turnpike directly and are less than 1 mile from the Route 25 connector, 5.5 miles from the Merritt Parkway, and 14 minutes to Amtrak via Bridgeport. Monroe Turnpike boasts a daily traffic count of more than 17,300 vehicles exposed to the park’s prominent pylon signage. Yale University, a private Ivy League research university, is approximately 23 miles from the professional hub and consistently produces a well-educated, motivated workforce for the area. The university’s most studied majors include economics and computer science, aligning with the realm’s daytime workforce concentrations. Trefoil Corporate Park offers a unique opportunity for professional occupiers to join the building's tenant roster. With more than 47,000 square feet spanning three floors, access is available through the main lobby, allowing the entire space to be taken as a whole, separated, or divided as needed.

  • Property Manager on Site
  • Wheelchair Accessible
  • Central Heating
  • Air Conditioning
  • Smoke Detector

Property Facts

Building Type
Office
Year Built
1990
Building Height
3 Stories
Building Size
47,264 SF
Building Class
B
Typical Floor Size
15,000 SF
Parking
203 Surface Parking Spaces
Covered Parking

Select Tenants

  • Floor
  • Tenant Name
  • Industry
  • 1st
  • Comer Construction
  • Construction
  • 3rd
  • Hirsch Matthew S Law Offices
  • Professional, Scientific, and Technical Services
  • 1st
  • Northwestern Mutual
  • Finance and Insurance
  • 3rd
  • Technology Service Corporation
  • Professional, Scientific, and Technical Services
  • 1st
  • Varrone & Varrone Attys
  • Professional, Scientific, and Technical Services
  • 3rd
  • Ware, Fressola, Maguire & Barber LLP
  • Professional, Scientific, and Technical Services

Marketing Brochure

Nearby Amenities

Restaurants

Shearwater Coffee Roasters Cafe $ 5 min walk
Wright Co - - 7 min walk
Parker Restaurants - - 7 min walk
Panera Bread - - 10 min walk
I M Smitten - - 13 min walk
Chipotle Mexican Grill - - 16 min walk
Wayback Burgers - - 16 min walk

Retail

Northwestern Mutual Insurance In Building
Envoy Mortgage Finance Company 7 min walk
Homebridge Finance Company 8 min walk
Bright Horizons Daycare 9 min walk
The Home Depot Home Improvement 10 min walk
Mondovi Dental Trumbull MD/DDS 9 min walk
Pella Corporation Home Accessories 11 min walk
ALDI Supermarket 11 min walk
Raymond James Finance Company 12 min walk
Goodwill Dollar/Variety/Thrift 15 min walk

Hotels

Marriott
325 rooms
16 min drive

About Trumbull

The town of Trumbull is a vibrant community that combines small-town New England character and charm with extensive retail, commercial, and light manufacturing activity. Office properties in this area are located in more of a suburban setting, with buildings located in close proximity to major retailers, schools, and parks. A wooded setting coupled with a lower cost of doing business continues to drive occupiers to Trumbull.

Commercial properties here are easily accessible via a variety of routes such as Merritt Parkway, I-95, Route 8, Route 25, and the Monroe Turnpike. These access points have drawn the interest of major retailers such as Home Depot, Walmart, and the Westfield Trumbull shopping mall.

Trumbull remains an attractive area to score talent as a significant portion of the population here has obtained a four-year college degree, with a notable percentage of college graduates in STEM fields.

Leasing Team

Leasing Team

Daniel Mundle, Associate
Daniel Mundle is an Associate in the Stamford, CT office of Colliers International where he focuses on Tenant and Landlord Representation. Dan is an integral part of his team’s local and national business development.

Dan joined Colliers in July 2023  to work on one of the Colliers top performing teams. Since joining, Dan has actively been working with a variety of institutions on their office search and real estate strategy. His responsibilities include business development, market analysis, and strategic planning.

Prior to joining our office, Dan also held a role at CBRE and had experience with residential. He holds a Bachelor in Science of Economics and Real Estate from the University of Connecticut.
Robert Lella, Senior Vice President
As Senior Vice President  at Colliers, Robert Lella represents  owners and national and regional occupiers in the acquisition and disposition of Industrial and Office requirements. Areas of expertise include sales and leasing of Warehouse and Distribution Facilities and Professional Office with a distinct focus in the outer boroughs of New York, Hudson Valley and Connecticut. Robert specializes in structuring and negotiating of sale and lease transactions, site selection, repositioning projects as well as supply chain logistics.

Prior to his career in Commercial Real Estate, Robert worked as Managing Director in Investment Banking at Bear Stearns, Merrill Lynch and Credit Suisse headquartered in New York focusing on debt underwriting and syndicate. Robert's financial background and experience has allowed for the execution of complex real estate transactions to better serve the specific goals and objectives of each individual client.
  • Listing ID: 31797211

  • Date on Market: 1/9/2026

  • Last Updated:

  • Address: 55 Corporate Dr, Trumbull, CT 06611

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