There are nearly 700 000 homes standing empty right now. I don't mean second homes or holiday homes, they're properly empty. Often it's because the owner is unknown for whatever reason (like when an occupier has died with no obvious next of kin) or the owner can't afford to bring it up to standard for sale or rental. Some councils have actively tried to address this but there's only so much they can do legally or financially. In recent years the number of empty homes has actually gone up, not down. The government could do more to help councils bring more of these back into use.
Then there's "landbanking". Developers are already sitting on enough land to build 441,000 new homes. They may have legitimate reasons for doing it but it's obvious that restricting supply will push prices up too.
There are also tax and VAT rules that mean that developers prefer greenfield sites to brownfield ones. But the government's in charge of the tax system. It's in their power to make smaller brownfield developments (which put less stress on existing infrastructure) more attractive than large greenfield ones.
Then there's the issue of people who don't live in the UK buying property as an investment but not live in it or rent it out. London developers have been known to actively advertise in HK and China for rich Chinese investors to buy city flats off plan. These places then stay empty for tax reasons. But several other countries (thinking Denmark for example as it's in the EU) restrict property purchases to people who actually live in the country. It means places become homes rather than somewhere for overseas investors to park some cash. Our government could have done this too if it wanted to. But instead it just created a list of non-resident purchasers to check that the money wasn't coming from Russia.
Why doesn't Gove at least try to deal with existing issues like these before he rips up safeguards that are designed to protect our environment? An investigation done by the Financial Times when Johnson was PM showed that the Conservative Party receives far more donations from large property developers and builders than from any other business sector. But that's probably just a coincidence.