Access to the innermost security zone during the G20 weekend will be controlled by a three-metre-high fence and five levels of security screening, a summit official said yesterday.

These were among the few details shared with more than 100 property managers and company representatives who attended yesterday’s “G20 summit preparedness workshop,” hosted by the Building Owners and Managers Association (BOMA).

BOMA represents more than 700 commercial real estate companies in the GTA, all anxious to know how they can prepare for June 26-27, when the world descends upon their neighbourhood.

Security efforts are already promising to be bigger than anything Canada has seen before and, in Toronto, many residents and businesses have expressed concern.

Exact security boundaries still aren’t being disclosed — and probably won’t be until about two weeks prior to the summit.