Few GIS studies have demonstrated a preparedness to grapple with the m
essy empirical problems which beset applied research. This paper uses
a detailed case study to illustrate some of the problems which are enc
ountered when attempting to integrate widely used urban data sources i
nto a disaggregate GIS. We also anticipate the prospects for informati
on management in the light of apparent changes in the availability of
property registers in the UK and the innovation of the UK Ordnance Sur
vey's ''Address-Point'' product.