5 points above the red line (70) · up 8 points since 2020
Evaluated Aug 2024 · next evaluation around Aug 2026
About this building
510 Ontario St is a 3-storey apartment building with 13 units, built in 1880. The City of Toronto's RentSafeTO program scored it 75 out of 100 at its last evaluation (Aug 2024), so a yellow sign must be posted at its entrance. It is 5 points above the red line (70).
The City lists no open orders at this building today.
Score history
From 60 in 2017 to 75 today. Green is 85 and up, yellow 70 to 84, red below 70.
How it compares nearby
There are 147 other scored apartment buildings within 1 km. 510 Ontario St scores better than 7 of them; the average nearby is 88.
Building history
The City lists 5 building permits at 510 Ontario St since 2014.
🔒 What was done, when and how much, and whether a new building is going up on this site: its owner or manager sees it once they claim the building.
New buildings coming nearby
42 development projects with 20 or more homes are open with the City within 1 km.
🔒 How many new homes: its owner or manager sees it once they claim the building.
Own or manage 510 Ontario St?
Claim it with your work email to see which problems the City found, where, and how many days are left, free. Morning alerts tell you the day after anything changes.
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What is 510 Ontario St's RentSafeTO score?
75 out of 100 (yellow sign) as of Oct 7, 2026; 5 points above the red line (70).
Does 510 Ontario St have open City orders?
No open orders in the City of Toronto's records today.
When is 510 Ontario St evaluated next?
The City evaluated it in Aug 2024; the next evaluation is due around Aug 2026.
What do the RentSafeTO colour signs mean?
Since June 2026 every Toronto apartment building with 3 or more storeys and 10 or more units posts a sign at its entrance: green for a score of 85 or more, yellow for 70 to 84, red below 70. The score changes when the City issues orders and when it evaluates the building again.