I wouldn't waste your time calling into the Land Registry - unless you want to waste money as well.
You may be looking for a document that doesn't exist - a non-existing transfer from a prior owner.
That having been said, its and education in itself, but bring a site plan with field boundaries.
An ordnance survey map of the housing estate site would be useful.
There should be one on the planning file in the Council offices.
This should have been dealt with in the primary conveyance.
It may go back to the original sale from the owner to the builder.
It may go back beyond it - the original folio may have held the error unnoticed.
Often these things only come to light when a development occurs, as is the case here.
The trouble is that some folios or rights of way aren't registered or aren't registered properly.
Thus parcels of land - or more usually wayleaves/ rights of way - don't get transferred.
This ends up leaving everyone in a pickle at sell on.
At the design end, one workaround is to ensure that the land without unknown title does not form part of
- a service route
- an access route
- a house proper
- a house site
Working the design of the housing estate house, roads and services layout so that piece of land without title so its in the middle of a public open space can be useful.
If that is the case already then it should be possible to swear a declaration which doesn't include the piece of land or specifically omits it.
Otherwise, you may have a problem, or rather, the bank has.
I know of one case where the owner's relation was traced to New York.
A distant cousin, he didn't know he had an interest in the land, which was causing consternation back home.
ONQ.
[broken link removed]
All advice on AAM is remote from the situation and cannot be relied upon as a defence or support - in and of itself - should legal action be taken.
Competent legal and building professionals should be asked to advise in Real Life with rights to inspect and issue reports on the matters at hand.