Spatial Analysis of the Extent to Which Cadastral Survey Maps Are Updated in Kenya (Case Study of Rageng’ni Registration Section)

Abstract

This study is based on the analysis of extent to which cadastral maps are updated in Kenya (A case study of Ragengni Registration section). The study objectives were; to analyze the extent to which the Cadastral Survey maps are updated in Kenya, to review how cadastral survey maps are updated in Kenya, to compare the boundary lines from Preliminary Index Diagrams and the boundaries on the imagery and to investigate the extent of the updates. To achieve the above objectives both primary and secondary data were used. Secondary data which included two Preliminary Index Diagrams (P.I.Ds) consisting of 126 parcels of land and registered mutation forms were obtained from Ministry of Lands (Siaya County office). Satellite imagery for the study area was obtained from sasplanet (sasplanet.Nightly.171130.9738.link). Other secondary data included published reports, land policy documents and land legislations. Primary data included point data collected using GNSS Equipment. The methodology consisted of initial planning, data identification and collection, data processing which mainly involved image mosaicking of downloaded tiles to form a single image. The second part of data processing included georeferencing of both the image and the PIDs using location coordinates picked using the GNSS Equipment. The georeferenced PIDs were then overlaid on the satellite imagery and analysis carried out. On the results, this research has established that out of the total area of study, 25.15 Hectares, the extent successfully updated on the cadastral map covers an area of 9.655 hectares. This translates to 19.32% of the total area fully updated on the map. 80.68% of the area of study has no evidence of updates.