In the ideal world that would be a good idea, but in the real world with severe housing shortages, not enough house building it is not in my opinion
it costs nothing and hinders nothing, yet provides a benefit, so I don't see how it couldn't be a good idea. it has no impact on housing in any way
How will requiring a £35 brick in a new building cause further problems with the severe housing shortage?
The brick is £35 each according to the article. That's practically nothing compared to the total cost of a modern house.