Professional Liability Insurance

All architects, with a Certificate of Practice, are legally required to have professional liability insurance unless exempted. The following insurances outlined below are available:

Annual Practice Insurance

This provides the mandatory indemnification required by the Architects Act and its regulations.

The Regulation to the Architects Act amending the minimum mandatory limits of liability for professional liability insurance came into effect on January 1, 2016.

The mandatory limits of liability required to be carried through Pro-Demnity Insurance Company are as follows:

Limits of Liability:

  Total Gross Fees:
$0 to $499,999

Total Gross Fees:
$500,000 to $999,999
Total Gross Fees:
From $1,000,000
Claim Limit: $250,000 (1) $500,000 (2) $1,000,000 (2)
Project Limit: $500,000 $1,000,000 $2,000,000
Aggregate Limit: $1,000,000 $2,000,000 $4,000,000

(Note: The Project Limit represents the maximum amount the insurer will pay as damages for a project arising from all claims reported during the Period of Insurance subject to the Claim Limit and Aggregate Limit.)

Applicable Policies:

(1) Claim Limit $250,000

(2) Claim Limits $500,000 and above

  • Pro-Demnity Policy No. 4;
  • Endorsement No. 1 to Pro-Demnity Policy No. 4;

(Policy wording see section “Increased Limits of Liability Program” below)

This supplements the mandatory indemnification requirement through the issuance of single project insurance when required by the holder or client. While it is in force, the single project insurance replaces the annual practice insurance for the particular project.

Limits of Liability:

Claim Limit: $250,000
Aggregate Limit: $500,000

Increased Limits of Liability Program

This provides both the mandatory indemnification required by the Architects Act and its regulations and additional limits of liability requested by the holder.

Retirement from Practice

This is applicable to OAA members, or former members that meet the eligibility requirements of the OAA Council. The requirements are participation in the Indemnity Plan or being insured by Pro-Demnity Insurance Company for two years, and payment of premiums, levy, deductible and taxes.

The procedure is for eligible members or former members to be automatically covered on the Expiration Date of their annual practice insurance following the date of surrender of Certificate of Practice.

Limits of Liability:

Claim Limit: $250,000
Aggregate Limit: $500,000
Deductible: $1,000


The following Endorsements are included in or added to each policy: