I'll be pleasantly surprised if this gets past the City AM moderators.

Kristian Nimitz wheeled out his Faux Lib nonsense for the umpteenth time.

Shooting the messenger: Rent controls have always and everywhere ended in failure

Quite clearly, in the real world they haven't, sometimes yes, usually no, depends on other factors.

My actual comment:

Badly wrong on at least two counts.

The UK had rent controls for most of the 20th century, but that did not mean that housing supply disappeared. All that happened was that landlords left the market - meaning there were more homes for owner-occupiers to buy, who also acquired all new supply.

(In European countries, rent controls coupled with yet another "government interference" i.e. minimum building standards have also led to favourable outcomes.)

This is a large part of the reason why owner-occupation rates doubled in the decades after 1945 and the number of private tenants halved.

Another major reason was that mortgage loans were capped at low income multiples, which set a natural cap on house prices.

His other glaring error is that granting even more planning permission will make no difference, it is pushing a piece of string. Land bankers/home builder have a profit maximising level of output of about 150,000 a year. If more permissions are granted, these are simply banked, which is why the largest home builders are sitting on land banks with planning sufficient for ten years' supply.

If Mr Nimitz left his ivory tower for a few minutes and took the trouble to read the accounts of Barrats, Persimmon et al, this would be obvious to him.

I imagine that the third mechanism adopted by UK governments to put a natural cap on rents and hence house prices will be completely unpalatable to Mr Nimitz. That was the easy availability of low rent social housing, which enabled millions to opt out of the land price Ponzi scheme altogether.
-------------------------
UPDATE, re Anti's comment.

The more complete list of policies which the UK had in one form or another for most of the 20th century until the Home-Owner-Ist era is as follows:

- rent controls (came in hard after each war, were then gradually whittled away)
- tenants were protected from eviction, as long as up to date with rent (until 1996 or so)
- as a result, neither banks nor building societies would lend to buy-to-let landlords (until 1997 or so)
- higher taxes on landlords' rental income
- private landlords not subsidised by Housing Benefit (until 1990).
- Domestic Rates (until 1990)/Schedule A tax (until 1964), which together were more like LVT than like Council Tax.
- little or no bank lending on land/mortgages.
- building societies had stricter criteria on minimum deposits and maximum loans-to-income multiples. If you can't borrow more than twice your joint income, that caps house prices at just above twice your joint income.
- there was the opt out from the whole Ponzi scheme i.e. social housing (peaked at 30% of all households in the 1970s).
- lower house prices meant that builders increased profits by increasing volume/quality; not by restricting supply to prop up prices, so little or no land banking.
- general political assumption that owner-occupation is the best form of tenure
- general cultural assumption that landlords were a bit sleazy, barely a step up from brothel owners or benefit claimants.

The inevitable result was low rents, low house prices, small and resilient banks and building societies…

… and rapidly increasing owner-occupation levels, which is where this Georgism-lite contained the seeds of its own demise and tipped over into Home-Owner-Ism again. The country is run by politicians who want to buy votes as cheaply as possible, so from the 1960s onwards, there was a political advantage in allowing house prices to increase year on year - a notional profit for a majority of voters and an invisible cost for future generations, all requiring zero tax increases.

Fast forward to last year, the scales were tipping the other way, more people were losing out from Home-Owner-Ism than were gaining, so the then Conservative chancellor started withdrawing tax breaks from buy-to-let landlords, ostensibly to shift the balance from landlords back to would-be owner-occupiers. If the shift from Home-Owner-Ism back to Georgism-lite takes as long as the other way, we will have Georgism-lite again by the middle of this century.