Available online:
Land Use (City of Ottawa) 
Freely available: Canada Land Use (Natural Resources Canada) - 1990, 2000 & 2010
Freely available: Canada Land Use Monitoring Program (CLUMP) Urban Land Use (Natural Resources Canada) - 1966, 1971, 1976, 1981 & 1986
Disclaimer:
Users are required to sign a Data Use Agreement before files may be acquired. All use of the data shall acknowledge the City of Ottawa as the owner of copyright. Data is provided 'as is' and the City of Ottawa makes no warranties as to the condition, quality, completeness or freedom from error of any dataset, or its fitness for a particular use.
