About Branches News & Events Resources Buildings at Risk Gallery Preservation Works!

Provincial Office

Provincial Office

Provincial Office

Provincial Office

The central co-ordinating office is located in Toronto at 10 Adelaide St East. The provincial executive is assisted by a part time manager and is responsible for developing policy, internal communications, liaising with the provincial government, operating the website, expanding the network of branches, publications such as Acorn, and the PreservationWorks! service.

   Will Coukell
   416 367 8075


   Cathy Nasmith
   416 598 4144

Buildings at Risk

Parkside School
Dundas Driving Park Road


Heritage home, Newtonville
4502 Highway 2


10 Station Lane, Unionville


Thamesville Bridge, 1936
Victoria Road, Thamesville



2017 Meeting Schedule for ACO Ontario
January 30, 2017 to December 30, 2017
Schedule of Executive and Council Meetings for 2017. Please open the attached pdf to see the full schedule. This document will be revised periodically as dates and locations are confirmed.


ACO has announced the winners of the 2015 Awards. These awards honour preservation leaders, projects and initiatives that are worthy of provincial recognition for their contribution to architectural conservation in Ontario. The awards will be presented next week at our Annual Awards Dinner. We congratulate all of our award winners and look forward to seeing them at the dinner.

2016 Heritage Award Winners announced by Architectural Conservancy of Ontario
Eleven Awards to be Presented
The Architectural Conservancy of Ontario is pleased to announce the winners of the 2016 ACO Provincial Heritage Awards, to be presented at the organization’s Annual Awards Dinner on Friday, November 4, at Osgoode Hall, Queen Street West and University Avenue.

ACO Announces 2017 Heritage Award Winners
Heritage Heroes across Ontario to be recognized at ACO's Awards Dinner October 20

President Catherine Nasmith reports on the past year's activities
Architectural Conservancy Ontario held its 83rd Annual General Meeting at Gallery Stratford on May 15th, 2016, immediately following the 2016 Ontario Heritage Conference. Approximately sixty people attended. The past year was an extremely productive one and its highlights are outlined in Catherine's report to the AGM, attached to this posting.

Minutes May 17 2017
Minutes of the May 17, 2017 meeting of the Executive Committee of Architectural Conservancy Ontario.

Bill establishes tax credits for rehabilitation of historic properties
ACO supports Private Member's Bill C-323, An Act to Amend the Income Tax Act (Rehabilitation of Historic Property), which will receive second reading in the House of Commons on February 10. This bill will establish a tax credit for expenses related to the rehabilitation of a historic property. It also establishes a tax deduction for the capital cost of property used in the course of such a rehabilitation.

ACO Interventions to Protect, 2013-2015
by Richard Longley
Our Past President, Richard Longley, has prepared a summary of Interventions to Protect, undertakings to protect heritage buildings and cultural landscapes during the past two years by 25 of ACO's branches plus six interventions in places where ACO has no branch.

ACO Toronto Launches TOBuilt
Over 10,000 entries on Toronto Buildings
ACO Toronto Branch has re-launched TOBuilt at http://www.acotoronto.ca with 10,000 Toronto Properties listed. Any ACO Member can post or edit another's post there. We want YOU to share what you know about Toronto Buildings. The original database was developed by Robert Krawczyk but has since been augmented and made open source.

80 for 80: Celebrating Eighty Years of the Architectural Conservancy of Ontario
The Architectural Conservancy of Ontario (ACO) is celebrating its 80th anniversary with the publication of a book, “80 for 80: Celebrating Eighty Years of the Architectural Conservancy of Ontario”. The illustrated book documents eighty among the hundreds of buildings and structures across Ontario that ACO has had a hand in saving since it rescued one building, the Barnum House, in 1933. For more information on the book and how to order it, click on this item.

Call for Nominations: ACO Provincial Heritage Awards
Deadline for nominations: August 23, 2017
Architectural Conservancy Ontario is now receiving nominations for its 11th annual Heritage Awards, honouring preservation leaders, projects and initiatives that have contributed significantly to architectural conservation in Ontario.

Call for Ontario Heritage Conference Location Proposals
Communities across Ontario are Invited to Consider Hosting
Attached is the terms of reference for hosting a conference including contact information to submit proposals.

ACO is pleased to announce the appointment of Devorah Miller as Development Officer for Architectural Conservancy Ontario. Please click on this item for more details.

Follow Us On Twitter!
There is a big #builtheritage community on the short messaging site. Join us on the first Wednesday of every month at 4PM Eastern for our twitter conference, with participants from Miami Beach to Timmins!

Interventions to Protect: Panabaker Farmstead
Barn demolished, prior, to consideration of its fate by the Ontario Municipal Board, in spite of opposition by ACO Cambridge and Black Bridge Community Association. Farmstead property to be severed, to allow construction of 39 houses.

Key note Address, Ontario Heritage Conference 2016
David Prosser, Literary and Editorial Director, Stratford Festival
A brilliant talk, by an excellent wordsmith and speaker. In it he makes the connections between the creative economy as evidenced in Stratford Ontario, heritage buildings, and artists. He opens with a description of how we have come to still have Shakespeare's plays, moves to the debate around preserving the parkland that is now home to the Stratford Festival theatre, and on to describe the role that the heritage building stock of Stratford has played in the festival's success. He eloquently makes the arguments for communities building on their past. Rich with quotable statements

Like Us On Facebook!
We are updating our Facebook page regularly, and it is a great place to get breaking heritage news.

MP Peter Van Loan Proposes Tax Credits for Heritage Properties
National Trust for Canada is organizing Response
MP Peter Van Loan has introduced a Private Members Bill proposing Income Tax Credits to assist private owners of heritage property with restoration costs. This is good news for heritage, whether or not it passes as widespread support for the initiative may result in either passage or a similar bill from government. National Trust for Canada is organizing heritage organizations across the country. ACO's Policy Committee will be developing a formal response from ACO.

Read Our Newsletter!
Get our bi-weekly newsletter by signing up at the web address below. We try to keep it fun and informative.

This document reports of the strategic plan that was developed in the spring of 2012

The Coordinated Land Use Planning Review – Ensuring that Heritage is Not Forgotten
As part of the Coordinated Land Use Planning Review instituted by the Ontario Government, ACO has made a submission to the Ontario Growth Secretariat stressing the need for stronger protection for cultural heritage resources

Tickets now available for ACO's annual Awards Dinner
ACO's annual celebration of Ontario's heritage superstars will take place at the beautiful Osgoode Hall on Friday October 20, 2017.

Vice President Shannon Kyles Tests Restored Historic Windows for Energy Efficiency...Historic Windows Win!
MAHONEY: Old windows part of the soul of our past
Article from the Hamilton Spectator

ACO is pleased to announce that Will Coukell has been appointed as Chief Operating Officer.


Lost Buildings
April 15, 2010

Provincial Office

Buildings lost in Ontario.

ACO Second Annual Awards Dinner November 21, 2008
January 13, 2009

Provincial Office

Our Second Annual Awards Dinner, held at the Arts and Letters Club in Toronto. A huge success both as a fundraiser and a chance to celebrate achievements past and present.

Ontario Demolitions
February 8, 2008

Provincial Office

Recent Cultural Destruction in Ontario

Demolition 225 James Street Hamilton
December 1, 2007

Provincial Office

Bata International Building Demolition
December 1, 2007

Provincial Office

Demolition of Bata Building started today, November 30th. A signature early modern building designed by John Parkin, and well maintained by the Bata family, it is being torn down to be replaced by a new temple sponsored by the Aga Khan. The Aga Khan is generally one of the world's great architectural patrons, but in this case he has chosen to ignore the pleas of Toronto's architects to preserve this landmark. Toronto Council failed to designate. The concrete's brilliance is from embedded white marble.