Mapping development sites has become much more difficult since the Land Registry stopped producing plotted index map search plan results. We've seen numerous examples of developers having multiple attempts to produce site plans which match the Land Registry terrier plan. 

The problem is that the Land Registry will no longer produce a plotted plan as a matter of course reconciling the developer's submitted plan and the index map and when requested will only produce a mark up based upon an illustrative plan. Results are therefore not conclusive.  In the face of this difficulty we always recommend that developers ensure their architects and surveyors appointments require them to produce plans which are consistent with Land Registry terriers and if necessary that they will agree to produce plans on a GIS basis.

On a macro level we'd urge the Land Registry to think about reinstating the old plotting search result service. If not then perhaps privatisation of this service as has been trialled elsewhere is the answer.