I have nothing against new development areas. I do have something against dying and vacant inner cities where the entire infrastructure (gas, water, electricity, telephone, sewage, roads, sidewalks, street lighting, etc.) is already in place and not being used. A society first has to be able to afford the luxury of letting this infrastructure go unused and still maintaining and sustaining it.
My hometown has had a very stable population for 30 years. However, the built-up area has increased by 25% and with it the number of employees in the municipal building yard and the costs for road construction and maintenance. This money could be used much more sensibly...
You are definitely right about that. But where are the houses in the village centers that you can buy and live in? We were not focused on new builds from the start but would have actually preferred to buy something existing. However, despite the problem always being hyped up so much, there is simply nothing on the market that presents itself as an alternative. There are occasionally ancient half-timbered houses which as renovation cases probably exceed the budget of a new build by far, but do not have a garden. I’m not going to spend another 250k on that. Then there were many single-family houses from 1970-1980 on the market that were completely run down. They were listed for about 400k and are also renovation cases often costing another 100k. But these houses were also all gone after 2 days. At least I don’t know of any significantly vacant village centers around here.
What of course exists are houses that were once inhabited by 5 people but now only occupied by 1-2. The children have long since found something of their own. This of course makes the village grow despite steady population.
But the two problems require completely different measures. Genuine vacancy often suffers from the problems described by haydee. Catastrophic building fabric, often directly on the main road, hardly suitable as demolition sites because they are small and difficult to build on. Possibly also stress with monument protection. Who wants to voluntarily put up with that and who can afford it?
Under-occupancy, on the other hand, is more due to a lack of alternatives. When grandma moves out of her house, where does she then move to? Senior-friendly apartments that are an adequate substitute for a house hardly exist. Even less so in rural areas.