On 02/03/2026 10:58, Ken Kilfedder wrote:
You can turn on the "OSMUK Cadastral Parcels" (available in the iD 'Overlays' section under Backgrounds) and align everything to that.
My understanding is that Land Registry maps are only indicative and not definitive. They show the general topology, not the exact WGS84 coordinates along the boundary line. (They are probably also traced against the OS maps that are not available for OSM use, as it is that sort of map from which OS make their money, although they probably make more from planning than conveyancing.)
Also, depending on where the parcel is, the boundary might be the centre of the road, or the limit of the curtilage.
I live in a flat, in one of several blocks, around the end of a cul de sac. There is one parcel for the whole estate (there is one freehold), but the adopted road extends halfway into that parcel, and continues, as a private road, on the other side. Whilst the earlier part of the road, lined by houses, has either a separate parcel, or the absence of one, to represent the road (I would say the latter, as there is no boundary between it and railway land, in the Cadastral layer), the part that enters our estate is not represented at all. I know the end of the road was adopted when the estate was completed.
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