Hi Emma, it depends on how much of a renovation project it is. Is it just replacement kitchen/bathroom/decorating, or is it much more than that? If you will be putting in services, or putting in new floors/walls/roof etc, you would be wise to consult a local architect. As with UK, Spain has quite a strict criteria about what you can and cant do with a property. If its just a plaster patching/paint job no problem. Also the location is important, if the house is tucked up an alley with no parking it will be less desirable than something with a view and somewhere to park. Some Spanish towns (also like UK) have their less desirable areas, so its worth staying in the town for a while to get a feel for the place.