Buffer zones will prevent the sale of Agriculture Canada holdings.

 The Rideau Canal is a UNESCO World Heritage Site, and the buffer zone is 30 metres or 100 feet.

Apparently 200 federal government buildings in the National Capital Region are now surplus.The Sparks Street Mall was 'Public enemy Number 1' so I would assume that the north side of the Mall is facing demolition. A foreign architect is redeveloping the Parliamentary Precinct.

Sparks Street: "It's crown against town and sparks are flying as the National Capital Commission prepares to demolish an entire block in downtown Ottawa. City officials, businessmen and private citizens alike fear that the NCC's plan to raze Sparks Street and replace it with office towers, apartments, stores and restaurants will destroy rather than revitalize the downtown core." (Globe and Mail, May 2, 2001.)

"The five-block, east-west pedestrian mall and surrounding area is the NCC's public enemy No.1." ("Tidying up a mess"/Macleans Magazine, September 3, 2001.)

Protective zones around National Observatories.