Well you've certainly got me confused!
According to the Cornwall Council website, there are no major developments planned at Lands End. Further I couldn't imagine Heritage Attractions Ltd (who own the headland) standing much chance of getting planning permission for anything major there.
The only really big development in Cornwall, mixing residential development with leisure facilities is this one
http://www.carlyonbeach.com/
but that's near to St Austell.
If there really is anything planned for Lands End, Cornwall Council's Penzance planning reception number should be able to put you in touch with someone who knows about it:
01736 336820
Chris