Urban renewal is a significant issue in developed urban areas, with a particular problem for urban
planners being redevelopment of land to meet demand whilst ensuring compatibility with existing land
use. This paper presents a geographic information systems (GIS)-based decision support tool (called
LUDS) to quantitatively assess land-use suitability for site redevelopment in urban renewal areas. This
consists of a model for the suitability analysis and an affiliated land-information database for residential,
commercial, industrial, G/I/C (government/institution/community) and open space land uses. Development
has occurred with support from interviews with industry experts, focus group meetings and an
experimental trial, combined with several advanced techniques and tools, including GIS data processing
and spatial analysis, multi-criterion analysis, as well as the AHP method for constructing the model and
database. As demonstrated in the trial, LUDS assists planners in making land-use decisions and supports
the planning process in assessing urban land-use suitability for site redevelopment. Moreover, it facilitates
public consultation (participatory planning) by providing stakeholders with an explicit understanding
of planners’ views.