Hello, I am Keith, one of the experts on Just Answer, and pleased to be able to help you with your question.
Has the vendor issued a VAT invoice for this transaction?
Then unfortunately you do have to pay the VAT.
You do not have to become VAT registered over this transaction. VAT registration is only required if your turnover ie sales excluding exempt items, in any year, exceeds 83K. However, if you are not registered you will be unable to reclaim the input tax you have incurred on the purchase.
You could register voluntarily, but you would have to operate VAT on your trading for two years before you could de-register again. Furthermore, if you sell the property whilst registered you will have to charge VAT on the selling price which may make the premises unattractive to buyers who are not themselves registered.
Thank you for your support.