The BPO argued in the Guardian yesterday that planning controls on HMOs should be relaxed to make housing more affordable. Which would surely be the case if you crammed people in.
But a cautionary note from other jurisdictions. Where there is a housing shortage and no controls then people pack in, sometimes 6 or 10 to a room, and this causes sub stations to blow up and sewerage networks to overflow, as they were calculated on much lower load and diversity factors. We see that here for example in the UAE seeing national controls introduced. never forget why planning controls exist in the first instance.