Hate, hate HATE second homes in this country with barely enough space/accomodation for the people who live here.
I moved to the country when I was 19 to do a job I loved but which paid peanuts, as rural jobs tend to do. However, in the little village where I lived, a hefty proportion of the cottages were second homes, standing empty for a large amount of time. Every so often, you would notice a Range Rover parked in the drive of a house you thought was empty, and a thriving dinner party (catered for by bought-in M&S, no doubt) going on inside. I didn't know these people, neither did anyone else in the village, so I would cast no aspersions on their morals or their status. But I heartly object to the fact that, on the rare occasion a labourers cottage (or similar) came on the market, it would be snapped up for a vastly inflated price and then sit empty for ages. Our village housed a dairy farm, a stud farm and a racing stable which between them employed a fair few people, none of whom had the remotest chance of ever being able to afford to buy a house in that area - they all sold for 'London prices'. Once, a couple even bought 2 adjacent workers cottages, and knocked them into one 'weekend home', thus depriving the village of two homes for the sake of a bolthole. And those properties that did come on the market were usually the former home of a deceased person, whose family (living elsewhere) would sell it for a tidy sum, so the community did not benefit one little bit. Second home owners tend to bring all they need with them, so the local pub struggled (whilst they had their dinner parties at home) and ended up selling to a brewery, to become yet another soulless chain pub, the local town has all but shut down and little life left in the village. If you walked through on a wednesday evening in February you would think that there wasn't a soul in the world. I agree that taxing them to the hilt is the only fair solution. Cloudhopper explained it so explicitly.