We are both retired and are considering buying a house in Thailand up to£150,000 do we still have to have a thai partner as t will not rent and do not wish to set up a company we would like a life peacefull

I recommend you seek professional advice from a reputable legal firm here in Thailand to answer these questions. The law states that non-Thais cannot own land here, so there is no way for you to own property and the land it is on.  You can buy a condominium however.

For a peaceful life please take care and seek proper legal advice on this matter.