Property valuers in England and Wales face a difficult task; they must collect and assimilate data from a variety of sources which differ widely with regard to quality, currency and coverage. This is because of legislative restrictions on access to public sector data sources and organizational constraints on access to property data within the private sector, such as confidentiality and commercial secrecy. Proposes a system for the dissemination of property data for valuation and other property‐related procedures, namely, a National Land Information Service (NLIS). Suggests that a NLIS should be developed using geographical information system technology. Describes a methodology which shows how a spatial analysis technique available on a GIS was used to examine the influence of accessibility on property value.
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