Press

Ontario's heritage deadline, in numbers

On January 1, 2027, listed properties come off Ontario's municipal heritage registers unless council has issued a notice of intention to designate. About 36,000 properties are affected province-wide. The Patina Record tracks them, municipality by municipality, from each register and its notices, updated daily.

Key numbers today

• 81 days until January 1, 2027.
• 17,196 listed properties at risk with no notice yet, across the 41 municipalities we track (46,985 heritage properties in all).
• 744 saved since 2023 (a notice of intention to designate or an individual designation) and 16 lost (off the register or demolished).
• 72 at-risk listed buildings face a development application filed at their address in the last three years. Of the 7 municipalities that publish application data, the most are in Toronto (52), Hamilton (9), Kingston (5).
• Most at risk: Toronto 3,440, Hamilton 2,262, London 2,179, Guelph 1,683, Mississauga 1,321.

Live versions: Saved or lost (shareable image included), each municipality's page, and coverage.

Story angles

• Which buildings in your area are at risk: every municipality's page lists notable listed buildings, the streets with the most of them, and its latest council decisions.
• Saved or lost: councils are racing to issue notices before January 1. We track every notice we can read and every heritage item on council agendas in ten municipalities.
• After January 1: what happens to a removed property, and why it can't be relisted until 2032. Our owner guide explains it in plain words.
• Volunteers stepping in: residents can claim an at-risk building on the volunteer watchlist, write the research record their city hasn't had time to prepare, and publish it in our archive.
• Demolition watch: we match demolition permits and development applications to heritage properties in seven municipalities, so a permit at a listed building shows up the day it is published.

Share images

Free to use with credit to The Patina Record. Numbers update every hour. Wide images suit articles and link previews, square ones suit Instagram and Facebook posts, and story images suit Instagram and TikTok stories.

• TorontoWideSquareStory
• HamiltonWideSquareStory
• LondonWideSquareStory
• GuelphWideSquareStory
• MississaugaWideSquareStory
• WindsorWideSquareStory
• MiltonWideSquareStory
• CambridgeWideSquareStory
• GrimsbyWideSquareStory
• OrangevilleWideSquareStory
• BramptonWideSquareStory
• Chatham-KentWideSquareStory
• AuroraWideSquareStory
• CobourgWideSquareStory
• WhitbyWideSquareStory
• OakvilleWideSquareStory
• Prince Edward CountyWideSquareStory
• St. CatharinesWideSquareStory
• KingstonWideSquareStory
• Niagara-on-the-LakeWideSquareStory
• KitchenerWideSquareStory
• BurlingtonWideSquareStory
• Niagara FallsWideSquareStory
• St. MarysWideSquareStory
• PickeringWideSquareStory
• GeorginaWideSquareStory
• Thunder BayWideSquareStory
• ClaringtonWideSquareStory
• Greater SudburyWideSquareStory
• CollingwoodWideSquareStory

How we know

Every number comes from a municipality's own published register, open data or notices, each with its source, licence and date (see sources). Province-wide totals come from Active History (listed) and the Ontario Heritage Trust (designated). We count what municipalities publish; some registers lag council decisions, so we note dates throughout. Not legal advice.

Contact

Nicolas Consens, founder: hello@thepatinarecord.ca. We can provide municipality-level figures, lists of at-risk or removed properties for your area, and background on the legislation.