Nicholson Sheffield Architects Inc.

358 Talbot Street

London, Ontario

N6A 2R6

T. 519.673.1190

Jim Sheffield

Gerald Gallacher

Walter Derhak

John Nicholson

About Us


N6A 2R6
T. 519.673.1190


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Nicholson Sheffield Architects Inc. is an award-winning firm based in London, Ontario. Our practice has more than 30 years of experience designing successful projects.  We have a reputation for serving the needs of clients with a high-level of professional excellence, and meeting design challenges with creative and effective solutions. We foster a collaborative and friendly approach to work. We are proud that so many of our clients ask to work with us on subsequent projects.

Principals Jim Sheffield, Gerald Gallacher, and Walter Derhak lead the firm. Founding Principal, John Nicholson has retired as a shareholder. He is a member of the leadership team and advisor to the firm.

Our team is comprised of broadly-experienced professionals, each of whom works on all phases of project delivery.

We are the proud winners of the London Chamber of Commerce 2016 Business Achievement Award for Business of the Year (Medium Business).