Page was of course frequently away on tour in the 70s, but spent much of Led Zeppelin’s 1976-77 hiatus there, and was even known to jam in the village pub, the Half Moon. He painstakingly installed a home studio at Plumpton, and carried out the mixing for In Through The Out Door there. He moved out in 1980 after a local photographer named Philip Hale (aged 26) died of vomit inhalation during a party on October 24th 1979. The house was on the market for a while before changing hands again in 1985.
Had the guitarist corresponded with you during his tenure there, chances are it would have involved one of these:
Amazingly, the particulars of the house as viewed by Page can be seen here.