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John Keogh | Colliers | New Haven

John Keogh


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Professional Summary

I have more than 30 years of experience as a commercial real estate broker in Connecticut. In the course of that time I've become familiar with just about every type of commercial property and with all of the major geographical markets within the state.

For the last 15 years or so I've concentrated my efforts in and around New Haven. I represent landlords, tenants, buyers and sellers, mostly in transactions involving either office space or life sciences properties.

My clients have included Science Park Development Corporation, Omni Hotels, Olin Corporation, PMC Property Group, Thylan Associates, Bow Tie Partners, General Reinsurance, Metropolitan Life, New York Life and the FDIC.

I am perhaps best known these days as the leasing agent for major office and research properties including the downtown tower at 900 Chapel Street, Merritt Crossing at 440 Wheelers Farms Road in Milford, and Science Park, a large research campus near Yale University that was once the manufacturing complex of the Winchester Repeating Arms Company.

I also has deep experience in the sale of properties for investment and development. In 2017 I represented Gramercy Property Trust in the sale of four Citizens Bank branches.

I began my career in commercial real estate brokerage in Fairfield County, where I worked with William Pitt Commercial Real Estate in Stamford. I moved to New Haven in 2001 to join Traub & Company, a boutique firm started by Carl Traub, the former head of Cushman & Wakefield of Connecticut. When Mr. Traub passed away suddenly in 2003, I remained for 18 months to wrap up the firm’s outstanding business. The company was then merged with Colliers International.

I have brokered several of the transactions that have reshaped downtown New Haven over the last decade. I represented Omni Hotels in the leasing of 20,000 square feet of retail space, once part of the former Chapel Square Mall, to four tenants including Barcelona Restaurant. I also arranged the sale of 80 Temple Street, the former headquarters of United Illuminating, from Temple George Associates (an affiliate of Fusco Corporation) to Bow Tie Partners, which renovated the building as 44 apartments and a 7-screen movie theater.



BA - Evergreen State College in Olympia, Washington


Memberships & Involvements

New Haven CID

Former Board Chairman of the Norwalk YMCA



Bank REO, Life Sciences

Service Lines

Landlord Representation, Tenant Representation, Corporate Capital Solutions, Occupier Services

Property Type

Office, Retail


Life Sciences Group

Featured Research

Nov 2, 2022

Frontier Sells Former SNET Building

New Haven Office Market Report Q2 2022
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Jul 13, 2022

Frontier Sells Former SNET Building

New Haven Office Market Report Q2 2022
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May 1, 2022

Alexion Leases Space at 101 College Street

New Haven Office Market Report Q1 2022
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Featured News

Jul 17, 2017

Science Park at Yale, New Haven, CT

In Connecticut, our Life Sciences Practice Group retains sole leasing responsibility for Science Park at Yale, a large research park that is the former manufacturing center of the Winchester Repeating Arms Company.
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