The Impervious Surface - 1995 layer contains polygon features generated from the 1995 through 1998 Digital Aerial Survey mapping line work. The use of multiple years of DAS updates best reflects the impervious layer as it was in 1995.The Impervious Surface layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classifications and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification and referencing to the Alberta Township System (ATS) has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit Digital Aerial Survey.

The City of Calgary has been conducting the annual civic census for over fifty years. This dataset provides the counts of residents and dwelling units including by structure type broken out into community districts for years 1968-1997.

This dataset reflects the Ward Boundaries that were in affect from October 16, 2017 until October 18, 2021. A ward is the division of the city into electoral areas, each represented by one elected Councillor. Wards are a geographical division of the municipality and are referred to by a number defined in the bylaw. Divisions are determined under the authority of the Municipal Government Act and criteria in Council policy. Please see the Ward Boundaries dataset for the current data.

The City of Calgary has been conducting the annual civic census for over fifty years. This dataset provides the counts of residents and dwelling units including by structure type broken out into community districts for years 1968-1997.

The impervious surface layer for 2014 contains polygon features generated from Digital Aerial Survey mapping line work. The layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classification and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit Digital Aerial Survey.

The Impervious Surface - 2010 layer contains polygon features generated from the 2010 Digital Aerial Survey mapping line work. The Impervious Surface layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classification and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification and referencing to the Alberta Township System (ATS) has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit Digital Aerial Survey.

The Impervious Surface - 1995 layer contains polygon features generated from the 1995 through 1998 Digital Aerial Survey mapping line work. The use of multiple years of DAS updates best reflects the impervious layer as it was in 1995.The Impervious Surface layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classifications and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification and referencing to the Alberta Township System (ATS) has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit Digital Aerial Survey.

The impervious surface layer for 2014 contains polygon features generated from Digital Aerial Survey mapping line work. The layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classification and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit Digital Aerial Survey.

The Development Permit Public Notices data set consists of development permits which have been made public. The City of Calgary is required by law to publish Development Permit information for two weeks.