stamp duty should be a gradual increase, not a 3% jump, its just ridiculous.
when we bought our place for £260k, our solicitor juggled a few things so we paid £10k on "moveables", not sure what that meant but im guessing gates, fencing etc?? and £250k on the house but it meant we didnt pay the xtra stamp duty.
my friend bought his farm and paid for the land and house separately on separate deeds to stay under stamp duty threshold. its worth talking to the solicitor if you are buying land as many sellers will sell it separately to the house if required.