That commission would use a universal register of landlord and rents to design the specifics of the rent control system and recommend incentives to encourage investment in boosting the rental housing supply.
While that is being developed, Khan wants interim powers to limit rent increases within and between tenancies.
He said: “It is high time for private renting in London to be transformed – Londoners need fundamental change that is long overdue.
“Unlike other mayors around the world, I have no powers over the private rented sector. That’s why this landmark report sets out a detailed blueprint of what the government must do to overhaul tenancy laws, and what powers City Hall needs from them to bring rents down.
“We have made important progress over the last three years by working closely with councils and renters – from ‘naming and shaming’ rogue landlords and banning letting agents fees for tenants, to being part of the successful campaign to scrap ‘section 21’.”
Khan’s proposals arrive on the same day as the Residential Landlords Association’s own warning that that getting rid of section 21 orders will not solve renters’ problems.
Their new survey found that 84 per cent of landlords would be “more selective” without the order, opting not to risk renting to tenants where there is doubt over their ability to pay.
The RLA also say that the government’s consultations on proposals to scrap section 21 repossessions must take into account landlords’ “lack of confidence” in the current alternative, known as section eight.
This process is lengthy as repossession bids often head for the courts and RLA policy director David Smith insists that without a way to regain control of homes quickly, landlords will leave the housing market and reduce the number of available properties for tenants, driving up prices.
“Whilst no landlords should ever abuse the system, it is only right and fair that they can repossess properties swiftly and with certainty in legitimate circumstances.
“At present, only section 21 provides this certainty. If the government is to get rid of it, landlords should have the same level of confidence and certainty about repossessing properties in cases such as rent arrears, anti-social behaviour or wanting to sell the property.
“Without such confidence landlords will simply leave the market, making it more difficult for the growing number of people looking for a home to rent. Secure tenancies will mean nothing without the homes to rent being there in the first place.”
However, responding to Khan’s announcement, Dan Wilson Craw, director of campaign group Generation Rent, insists that the pendulum needs to be swung towards renters.
“As long as your landlord can evict without needing a reason, or raise your rent by more than you can afford, the rental market can never offer you a true home,” he said.
“While we need to build to meet the demand for homes, renters are struggling right now to make ends meet – they cannot wait any longer for relief.”