The official website of the City of London300 Dufferin Avenue519-661-CITY (2489)
image of front gate of the Elsie Perrin Williams Estate

Heritage Designated Properties


Did you know that there are approximately 3,900 buildings and structures listed on the City of London's Inventory of Heritage Resources? This figure represents approximately three per cent of the entire building stock based on an estimate of 100,000 buildings in London.

The inventory provides data on buildings which define the identity and distinctiveness of London, Ontario and has come to represent commonly held values as to which heritage resources should be retained in our community. The listing of a property or structure indicates that the property satisfies certain approved criteria based on its architecture, history and context. A listing also indicates the need for special treatment of the property under the Planning Act, the Ontario Heritage Act, the Ontario Building Code and specific city policies such as demolition.

Under the provisions of the Ontario Heritage Act listed properties cannot be demolished for at least 60 days following a written request for demolition by the owner.

By using CityMap you can interactively explore the inventory of heritage buildings and structures in the City of London. London CityMap will provide site specific data from the Inventory database for each individual property. Simply type in a specific address, or view a portion of the city on the map. By using the "identify" tab at the top of London CityMap and then selecting a specific address you will be able to identify the following information for any building or structure in the inventory:

  • Priority Ranking
  • Year built (if known)
  • Predominant Architectural Style of Building
  • By-law Number to show Designation under the Ontario Heritage Act, if applicable.

You may also view the areas defining London's Heritage Conservation Districts. One of the goals of the Inventory is to identify and conserve traditional neighbourhoods, one of London's most important urban resources. This goal has been further achieved by the creation of Heritage Conservation Districts under Part V of the Ontario Heritage Act.

Priority Levels

Priority levels indicate and justify the heritage value of the resources as objectively as possible.

Priority 1 -  buildings are London's most important heritage structures and merit designation under Part IV (Section 29) of the Ontario Heritage Act. This group includes not only landmark buildings and buildings in pristine condition, but also lesser known structures with major architectural/historical significance.
 
Priority 2 - buildings merit evaluation for designation under Part IV of the Ontario Heritage Act. They have significant architectural and/or historic value.
 
Priority 3 - buildings may merit designation as part of a group of buildings designated under Part IV of the Ontario Heritage Act or as part of a Heritage Conservation District, even though these buildings are not often worthy of designation individually.
 
Priority 9 - is restricted to buildings within a Heritage Conservation District which individually would have little or no heritage value.

Last modified: