Members of Architectural Conservancy Ontario (ACO), through education and advocacy, encourage the conservation and reuse of structures, districts and landscapes of architectural, historic and cultural significance, to inspire and benefit the city and people of London, Ontario and region.


Geranium Heritage House Tour

This June 2nd, come explore London’s historic Victoria Park and the award-winning Woodfield heritage neighbourhood. Get your tickets today, they sell out quickly!

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How You Can Get Involved

Looking to make a difference in our community? There are many ways that you can support our team of volunteers. Here are just a few, if you have ideas on how to help out please drop us a note!


Do you have photos or stories of buildings in and around the city of London? Would you like to share those stories with people who share a passion for the people and history of this amazing area? Please get in touch with us!


ACO is a registered charity and your donation can be a huge help with our mission to conserve the London region’s built and natural heritage.

*Link will take you to ACO’s provincial website.


Joining ACO London is a great way to meet all sorts of people who want to help conserve the architectural heritage in our region, people who want to preserve these features that make London a distinctive city, and who believe that heritage is one critical way a community maintains its identity.

*Link will take you to ACO’s provincial website.


2019 Annual General Meeting

Join us for our 2019 Annual General Meeting at the award-winning London Music Hall of Fame, former home of Nash Jewellers!

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Proud Members of: