Spatial Variation of Land Values in the Colombo District, Sri Lanka Using Geographic Information System

Abstract

Land value mapping is crucial for urban planning and decision-making, particularly as Sri Lanka undergoes rapid urbanisation. This study focuses on the Colombo district and aims to accurately interpret land values and identify their patterns for effective planning. Using Geographic Information Systems (GIS), the research investigates the spatial variation of land values and the factors influencing them and categorises land value bands. Through geospatial analysis, employing inverse distance-weighted analysis and the geometric interval method, the study gathers land value data and analyses spatial patterns. The research outcomes are expected to offer valuable insights for policymakers, urban planners, and stakeholders involved in land management and development in Colombo. The findings will contribute to an improved land evaluation system, enabling informed planning decisions and sustainable regional urban development.