Yes that’s exactly the pattern I’m talking about. The upwards change is only used at the end where it’s used twice. “I just called” is from 1984 though. Through digging around the earliest I’ve found the style is in Penny Lane 1967. Am a bit on the fence about that though as the key shifts a lot through the song, but there’s a definite key change up for emphasis on the last chorus.
Fitted out as a one bed / studio this would sell in the low end of £200-300k If you’re a property developer 30k for the land actually seems cheap.
(Streatham Rail is about 25 mins from the city of London)