What Every Toronto Home And Business Owner Should Know About Their Heritage Property.
By Frank Gillis
Owner of Right Choice Roofing and Repair
Roofing contractor serving Toronto since 2007.
Many Toronto property owners know they live in an older, character-filled neighbourhood. Far fewer know whether their building is listed, designated, or located inside a Heritage Conservation District. That status can matter before exterior work begins.
Ontario has changed the rules around municipal heritage registers, and an important deadline is approaching. For older Toronto homes, this may affect how owners plan roof repairs, roof replacement, slate roofing, cedar roofing, copper flashing, chimneys, dormers, and other visible exterior features.
This guide explains the issue in plain language so homeowners can check their property status early and avoid rushed decisions, permit problems, or unnecessary costs.
This article is general information for Toronto property owners. It is not legal advice. Homeowners should confirm their property status directly with the City of Toronto before starting exterior work.
What Is Actually Changing in Ontario?
The Province amended the Ontario Heritage Act through two major laws.
Bill 23, the More Homes Built Faster Act, 2022, introduced a time limit for properties that sit on a municipal heritage register without formal designation. If a municipality does not issue a Notice of Intention to Designate within the required time, the property may have to come off the register.
Bill 200, the Homeowner Protection Act, 2024, extended the deadline for many legacy listed properties. These are properties that were already listed before 2023. The new deadline is January 1, 2027. You can read the official provincial notice here: Environmental Registry of Ontario notice 019-8738.
According to the Architectural Conservancy Ontario, this legislative shift affects roughly 36,000 listed heritage properties across Ontario. Toronto has thousands of listed properties that City staff are reviewing as part of the Heritage Register Review process.
Listed, Designated, or in a District? Know Your Status
People often use the word “heritage” broadly, but the legal status of a property can make a big difference. A listed property, a designated property, and a property inside a Heritage Conservation District are not the same thing.
Listed Property
A listed property has been flagged by the City as having potential cultural heritage value. It is not the same as a fully designated property.
Listing does not automatically mean every repair needs a heritage permit. However, the owner must give the City at least 60 days’ written notice before demolishing or removing a building or structure on a listed property. That notice period gives the City time to decide whether the property should move toward designation.
Designated Property
A designated property has formal protection under the Ontario Heritage Act. A municipal by-law identifies the property’s heritage value and may list specific heritage attributes.
Those attributes can include visible exterior features such as the roofline, slate roofing, copper flashing, chimneys, dormers, masonry, windows, wood trim, and other architectural details. If proposed work affects those attributes, a heritage permit may be required.
Heritage Conservation District
A Heritage Conservation District protects a larger historic area or neighbourhood. Some Toronto properties are not individually designated but still sit inside a district with its own plan and rules.
In these areas, exterior work that is visible from the street may need additional review. The exact requirements depend on the district plan and the type of work being proposed.
How to Check Your Property Status
Do not guess. Confirm it before planning exterior work.
You can check your address through the City of Toronto Heritage Register page or the City of Toronto Heritage Property Search tool.
Taking a few minutes to check your status can help you avoid delays, permit issues, and costly mistakes later.
Why the January 1, 2027 Deadline Matters
Ontario is now in a transition period for many listed heritage properties. Before the January 1, 2027 deadline, a listed property may move in one of two directions.
1. The Property Becomes Designated
If the City determines that a listed property meets the required heritage criteria, it may issue a Notice of Intention to Designate.
Once a property becomes designated, major exterior or roofing work may need to follow recognized heritage conservation standards, including the Standards and Guidelines for the Conservation of Historic Places in Canada.
That does not mean a homeowner cannot repair the property. It means the work may need to be reviewed, planned, and completed in a way that protects the property’s heritage attributes.
2. The Property Is Removed From the Register
If the deadline passes and the City has not moved to designate the property, it may come off the heritage register. The amended rules also create limits around re-listing, so homeowners should confirm the current status directly with the City before relying on any assumption.
Removal from the register does not automatically mean the home has lost its architectural or historic value. In older Toronto neighbourhoods, removing original materials can still affect the character, appearance, and resale value of a property.
For example, replacing original slate with modern asphalt shingles may seem like a simple cost-saving decision, but on some older homes, that change can permanently alter the look and value of the building.
What This Means for Roof Work
Roofing is one area where heritage property owners can run into unexpected problems.
On an older home, the roof is not always just a weather barrier. It may be part of the home’s architecture. The shape, slope, materials, flashing, chimneys, dormers, and metal details can all contribute to the appearance of the building.
Historic roof systems may include:
- natural slate roofing
- cedar roofing
- copper valleys and flashing
- copper or zinc-coated copper eavestroughs and downspouts
- decorative dormers
- wood soffits and fascia
- original brick chimneys
- visible rooflines that define the character of the home
- flat roofing systems
- Wildlife Vulnerable areas
- Bay Windows
- Turrets
- Extensions or additions
- Skylights
- Drainage systems
Where Homeowners Can Run Into Problems
Routine maintenance using matching materials may not always require a heritage permit. The risk usually increases when the material, appearance, shape, or visible design is changed.
For example, a homeowner may think they are simply replacing a worn roof. But on a designated property, changing from slate roofing to asphalt shingles, or replacing historic copper flashing with aluminum, may affect protected heritage attributes.
Unapproved alterations on a designated property can create serious problems, including delays, compliance issues, added costs, or orders to correct the work.
Before starting exterior work, homeowners should review the City of Toronto Heritage Permit Guide and confirm whether a permit is needed.
Heritage Funding Homeowners Should Know About
Designation can add extra planning steps, but it may also open the door to funding support that listed properties cannot access.
The City of Toronto Heritage Grant Program offers matching funds for eligible conservation work on designated properties. An owner may receive one Toronto Heritage Grant every five years.
For residential and tax-exempt properties, the program may cover 50 per cent of eligible conservation costs. For comprehensive repair or restoration of an original slate roof assembly, the City lists a matching grant of up to $20,000. This can include related copper or zinc-coated copper eavestroughs and downspouts when they are part of the approved heritage work.
Standard non-heritage roof work, such as replacing a historic roof with asphalt shingles, does not qualify for this type of funding.
Commercial and industrial properties may be directed to the City of Toronto Heritage Property Tax Rebate Program instead.
Funding rules, deadlines, eligibility, and application timing can change. Property owners should always check the City page directly before planning work or relying on a grant.
What Toronto Homeowners Should Do Before Exterior Roof Work
You do not need to wait for a roof leak or a City notice to take control. A few early checks can prevent major problems later.
Search Your Address
Use the City’s online heritage tools to confirm whether your property is listed, designated, or located inside a Heritage Conservation District.
Watch for City Notices
If your property is listed, watch for any formal correspondence from the City about a possible Notice of Intention to Designate before the January 1, 2027 deadline.
Build in Extra Time
Heritage review and permit steps can take time. If your older roof, chimney, slate, cedar, copper, dormers, or visible exterior features need work, do not leave the planning until water is already coming in.
Ask About Materials Before Work Starts
Before changing original materials, confirm whether repair, restoration, or matching replacement is required. This is especially important for slate roofing, cedar roofing, copper flashing, chimneys, and visible roof details.
Keep Records
Keep copies of City emails, permit documents, photos, estimates, material details, and any heritage-related guidance you receive. Good records can protect you if questions come up later.
Why This Matters Even If You Are Not Designated
Some homeowners may see removal from the heritage register as permission to make any change they want. Legally, that may be true in some cases, but it is not always the best long-term decision.
Older Toronto homes often hold value because of their original materials and character. Slate roofing, copper details, masonry, wood trim, and historic rooflines can be expensive to replace once they are gone.
Even when heritage rules do not apply, homeowners should think carefully before removing original exterior features. A cheaper short-term change can sometimes reduce the appearance, character, and future resale appeal of the property.
Simple Takeaway for Toronto Property Owners
If you own an older Toronto home, check your heritage status before starting visible exterior work.
The January 1, 2027 deadline means many listed properties are being reviewed. Some may become designated. Others may be removed from the register. Either way, homeowners should understand their status before planning roof repairs, roof replacement, slate roofing, cedar roofing, copper flashing, chimney work, dormer repairs, or other exterior changes.
A short check now can help you avoid rushed decisions, permit problems, unnecessary costs, and changes you may regret later.
Official Resources
For accurate and current guidance, use official provincial, municipal, and recognized heritage resources.
Frequently Asked Questions
How do I find out if my Toronto home is a heritage property?
You can confirm your status using the City of Toronto Heritage Register page or the Heritage Property Search tool. Search by address to see whether your property is listed, designated under the Ontario Heritage Act, or located inside a Heritage Conservation District. It only takes a few minutes, and it is the most reliable way to know where you stand before planning exterior work.
Do I need a permit to do roof work on a heritage property?
It depends on your status. Listed properties usually do not need a heritage permit for repairs, though at least 60 days’ written notice is required before demolition or removal. On a designated property, a heritage permit may be required when work affects protected attributes, such as the roofline, slate, or copper details. Always confirm with the City of Toronto Heritage Permit Guide before you begin.
What happens to my property after the January 1, 2027 deadline?
Before the deadline, the City may issue a Notice of Intention to Designate a listed property, which gives it formal protection. If the City does not move to designate, the property may be removed from the register, and re-listing limits then apply. Either way, you should confirm your current status directly with the City rather than assume.
Can I replace a slate roof with asphalt shingles on a heritage home?
On a listed property, this may be allowed, but it can reduce the home’s character and value. On a designated property, changing original materials like slate or copper can affect protected heritage attributes and may require a heritage permit. Standard asphalt roof replacement also does not qualify for City heritage grant funding.
Are there grants to help pay for a heritage roof in Toronto?
Yes. The City of Toronto Heritage Grant Program offers matching funds for eligible conservation work on designated properties, and an owner may receive one grant every five years. For comprehensive repair or restoration of an original slate roof, the City lists a matching grant of up to $20,000, which can include related copper eavestroughs and downspouts. Residential and tax-exempt properties may apply, while commercial and industrial properties are directed to the Heritage Property Tax Rebate Program.
Disclaimer: This guide is provided as an informational community resource for property owners in Toronto. It is general information only and does not replace legal, architectural, municipal, or heritage planning advice. For decisions about your specific property, confirm your status directly with City of Toronto Heritage Planning staff and consult a qualified heritage professional where needed.
