Westbourne Gardens, Bayswater

Owning a freehold as joint proprietors rather than through a company.
New Kings Road, Parsons Green

Flats above shops, and the quarter of floor area that decides whether a building qualifies.
Portsmouth Court, Slough

Twelve leaseholders outside London buying their freehold, then renewing every lease.
Oxford Avenue, Raynes Park

Two flats, a roof with planning permission, and hope value claimed against it.