Cornwall is an interesting example to choose, because the lack of available accomodation is not due to a lack of space, but a desire to maintain things as they currently are and limit population growth from a planning perspective.
I have no idea where you got that from, but it's 100% wrong. Not a good start.
Just as an example, Truro is adding close to 4,000 new houses in a development near Threemilestone. That's a new town the size of Padstow.
And everywhere in Cornwall there are large and small housing developments going up. Just drive around and you can't fail to see entire new estates going up. Camborne, St Austell ... everywhere.
Contrast that with London (I would love to live in Mayfair for example, but will never be able to afford it), where the is literally no space to increase property (without reducing property size or building upwards) and the approaches take a very different tack.
No, they shouldn't, we should be building more homes in Cornwall, you just have to convince the Cornish not to oppose the idea. Of course, there is also the argument that if more people did, then wages would rise as labour demand outstripped supply.
So are you going to manage allocation when circumstances change (eg if someone with greater need is without accomodation, do you remove the family currently in it)? The current council and social housing processes already fail significantly and aren't fit for purpose now, let alone fit for expansion.
Remember, you have said this will be a right to accomodation. That means anyone is entitled to request it, and you have no pricing flexibility to manage it.
I have no problem with the council significantly expanding its property holdings to the point where they can allow people to stay in their houses, or have long-term guaranteed tenancy. 10 years or so as per other countries.
Obviously if your circumstances improve
significantly then the chances are you would want to own your own home. You would likely move out of your own accord, to become a home owner.
Remember, the way this is currently done is to allow people to buy their council properties at a ridiculously discount rate (like 30% of the true value). This is bonkers. Without that, people would either continue to rent or, should they be able to afford a mortgage on a mid-range property, move out to become a home owner.
The idea that if you suddenly become ineligible by £1 (over the threshold) that you would be forced out is not what I had in mind. Indeed, long-term assured tenancies are the kind of thing I envisage the council being able to provide.
And to accomplish this councils should be encouraged to go on massive building sprees - but not the lowest-quality pap the private developers churn out to maximise profits and return to shareholders. Instead, invest some real money and build to last. Build green. Build sympathetically to the landscape.
The private sector cares about nothing but profits and often the new housing estates they produce are complete
abominations. I would not allow that, either. We would be looking at substantial spending with a view to the long-term health of the country and its people. Looking to ensure we don't end up in a race to the bottom, as per the private sector. And there wouldn't be unsafe cladding either, designed to keep costs down at the cost of human lives.
Any form of location specificity is desire driven demand, especially if not directly employment related. Anyone who makes a choice to expand their family and outgrow their existing accomodation is desire driven, and so on.
It is if you're going to give everyone a right to below market rate accomodation, the number of people in subsidised accomodation is going to go up, not down.
Based on means testing. The right to fair rent based on means testing.
If that is below market rate it is because the market rate is no longer fair. Paying 70% of your income or more on rent is not fair, or good for the long-term health of society.
Remember, the private sector is often focused on short term gains, and is amoral, bordering on immoral (see unsafe cladding, etc). That is to the detriment of society, or can be.