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The concept of the Smart City has recently been introduced to help make urban planning in Chiang
Mai more effective. In particular, the Smart City idea is being integrated with Geographical Information
Systems (GIS) and Information and Communications Technologies (ICTs) to support better decision- making.
This paper employs GIS-based ICTs as a means for updating the land use database of the Public Work and
Town & Country Planning within the Chiang Mai Comprehensive Plan Boundary between 2000 and 2015.
Results show that built-up areas of all urban land use categories have increased. The biggest change was
found in the low density residential class with 33% and 37.5 % increase in number of buildings and in total
area, respectively. The smallest change was found in Government Institutions and Public Utilities zone with
1.4% increase in the number of buildings.