Supplementary memorandum by Property Intelligence
plc (OS 07 (a))
19 MARCH 2002:
The National Land & Property Gazetteer (NLPG)
is a single, comprehensive, up-to-date list of addresses, each
with its own grid co-ordinate, which enables them to be linked
to Ordnance Survey maps.
Designed as a tool to improve information management
and serve as a bedrock for land and property address referencing.
The NLPG currently exists for England and Wales and is being developed
NLPG is a process subject to continuous improvement
whilst being consistently built to an agreed British Standard.
Inevitably both the standard and the NLPG have attracted criticism,
some positive and some negative. Interestingly, no viable alternative
to the NLPG has been suggested since its inception three years
Local and National Gazetteers
1. The National Land and Property Gazetteer
(NLPG) is a single, comprehensive, up-to-date list of addresses,
each with its own grid co-ordinate linking to the national grid
and therefore Ordnance Survey maps.
The initiative is being developed by the local
Authority community, led by the Local Government Information House
Limited, part of the Improvement and Development Agency, following
lengthy consultation on the required standard (BS7666) with Ordnance
Survey, the Association for Geographic Information, Royal Mail,
utilities and other public and private sector bodies.
Local authorities are essential participants
because they start the process by naming streets and numbering
buildings. The NLPG requires local authorities to convert their
existing lists of addresses into a fully consistent national information
system, held electronically, constructed to common standards,
and based on unique property reference numbers (UPRNs) for each
property or piece of land. Once created the Gazetteer must be
rigorously maintained, used and supported by the whole authority.
2. Even where authorities have moved beyond
assimilated paper-based data, putting this information into a
consistent and accurate form is a major and expensive enterprise.
But progress so far has been impressive: at May 2001, all known
addresses were compiled into a draft NLPG and currently over 40
per cent of all addresses in the country are being maintained
locally by the respective local authorities in their local gazetteers.
3. Local authorities, which have undertaken
the work, have found some very real benefits. First, the NLPG
makes sure the authority's information is held and maintained
on an accurate and consistent basis. This provides a focus for
efforts to improve local service delivery from improving bin collection
rounds to reducing crime. The NLPG also provides efficiency gains.
As previously mentioned, much staff time is unnecessarily being
wasted on maintaining duplicate address listsin some authorities
there have been over 100 address lists in use, equivalent in some
unitary local authorities to over 90 full time equivalent posts
spent on maintaining addresses.
4. A number of authorities have also found
that the local gazetteer has enabled them to identify previously
unnoticed or forgotten properties on which council tax or business
rates are not being paid. The Valuation Office Agency estimates
that additional revenue of some £26 million nationally is
to be gained by better gazetteer information.
5. The NLPG is also going to assist in providing
the consistency required to enable national projects to be created
from disparate locally-held datasets. The Local Authority Secure
Electoral Roll (LASER), which will be accessed by the Electoral
Commission and the political parties, is one such example. The
NLPG will provide a means to display electoral information on
a map and make alterations required by any future boundary changes
both simpler and cheaper to undertake.
6. In addition, NLPG/LLPG's can be employed
as a major tool supporting the progression of the modernisation
agenda to bring benefits to local authorities, central government
and the private sector. Combined land and property datasets, linked
to Geographical Information Systems (GIS) often result in clearer
management information being available about the delivery of council
services. At-a-glance it can be seen whether areas of exclusion,
in terms of service delivery, are occurring, a powerful tool for
Officers, Members and decision-makers. Once information is held
in linked databases, additional revenue streams can be createdthese
can often connect successfully to the local authority search process
eg planning permissions within x metre radius could be supplied
on payment of a supplemental fee, etc.