i.e. a really well insulated one, with a good log burning stove that will heat up the place brilliantly (and with thermostatic remote control); possibly some electric heaters as a back up and solar hot water & electricity?
The only thing missing would be ability to set a thermostatic timer to have the house at a certain temperature at a certain time; but instead you would have a generally warm house and very low bills
Would it put you off buying or would you jump at the opportunity?