The National Land and Property Gazetteer (NLPG) will underpin the National Land Information Service (NLIS) - an online search facility for land and property information.
The u-turn comes less than a month after address data experts criticised Intelligent Addressing - the supplier helping local authorities to feed data into the system - for refusing to reveal details of an internal survey which matched the NLPG against Land Registry records.
Intelligent Addressing claimed that the NLPG achieved a 97% match rate in the exercise. However, last month software suppliers and local authority IT professionals claimed that 20% of the data in the NLPG could be inaccurate. Both Intelligent Addressing and joint NLIS project leader Local Government Information House denied this.
Michael Nicholson, chairman of Intelligent Addressing, said, "The NLPG is subject to a rigorous process of quality control. As a result of this process, a comprehensive report on the quality of the NLPG, which will include comparisons with other datasets, is to be published imminently."