True, but a small piece you can never build on, in Cornwall, is not so attractive.
In fact, I would probably offer less than the asking proce, but inquire first why it is fir sell.
If it is a sale after the iwner died, I would give a low ball offer. Usually the benefactors want cash quickly.
Thats what Zi did to the property in Norway, I bid about 1/3 under valuation. Cash = quick deal. Got it.
The piece of land I bought years ago was 40 minutes drive from London, so a different ballgame, but it as in a such horrendous state nobody was interested.
In that area ( W and E Sussex ) fields are snapped up by moneyed fathers so their daughters can have a horse on.
Several of my old friends did that if they did nit have enough field themselves.
Then when the little daughter grows up and discover you can ride on something else than a horse ( bike for example) they let the field get derelict or in best case sell it on.