£80,000 for a house and pool sounds like a bargain. But is there a greenhouse. TBH, I don't know if people have/need greenhouses in Spain.
Anyone could sell a house in, say, Southampton, for, say £160,000, and then buy two houses in Spain. They could live in one, and rent the other as holiday accommodation, bringing in, say, £200 per week, to help with those little luxuries. Or simply treat the second £80,000 as pocket money.
And no problem overwintering tender plants there. Provided it's the right part of Spain. I think Winters can get very cold inland.