CAO is shifting to online payments instead of cheques starting Nov. 1

Contact Us

CAO provides guidance to condo communities under the Condo Act.


Please submit only one inquiry per issue.


Harassment or aggressive language will result in refusal of service.

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Condominium Authority Ontario

P.O. Box 69038,
RPO St. Clair Centre,
Ontario M4T 3A1

Monday to Friday:
9:00 a.m. - 5:00 p.m.
CAO Toll Free number – 844-880-5341

TTY (telephone device for the hearing impaired)

To use a Message Relay Service (MRS), please dial 7-1-1 on your TTY to reach a relay operator, or alternately use your IP relay service to connect with a relay operator.

Media Inquiries

For media inquiries, please email