Property managers near G20 sites in Brisbane have been warned to check if their apartment and townhouse complexes are covered for acts of terrorism.

Apartment and townhouse managers near Brisbane’s G20 zones have been told to check if their insurance policies cover terrorist acts.

The world’s most powerful leaders will gather in Brisbane on November 15 and 16, during which time parts of the city will be locked down in an enormous security operation.

Restricted and declared zones for the G20 summit will include the Brisbane Convention and Exhibition Centre at South Brisbane, the Treasury Casino and CBD hotels, and sections of Brisbane Airport.

The summit could attract protesters or an act of terrorism, according to the peak industry group for bodies corporate, Strata Community Australia (SCA).

SCA Queensland president Simon Barnard warned on Tuesday that strata insurance policies issued to bodies corporate can include a “terrorism exclusion”.

“Whilst extremely unlikely, a terrorist attack is possible and can cause an extraordinary amount of damage,” Mr Barnard said.

There was generally no exclusion for malicious damage such as what may arise from a rowdy protest, he added.

But “various strata insurers of residential properties have introduced specific terrorism exclusions into their policies”, Mr Barnard warned.

This was due to the scale of the potential loss caused by terrorism.

The G20 (Safety and Security) Act 2013, passed through Queensland parliament in October last year, has also handed police extra powers to control crowds throughout the event.

The Queensland Police Service has repeatedly stated it has been reaching out to known protest groups to ensure they are aware of the increased restrictions.