When rent controls are introduced, landlords sell up. Some convert their properties to owner-occupation. Some redevelop for other uses. Some simply sell to owner-occupiers who would otherwise have rented. The result is a smaller private rental market with fewer homes available to the people who need them most.
This is not a theoretical concern. It is one of the most consistently replicated findings in housing economics, documented across cities and countries over more than a century of evidence.
Wealthier renters looking to buy
As landlords sell up, more properties enter the sales market. The people best placed to take advantage are those with savings or mortgage access. Rent controls quietly transfer housing wealth upwards.
Sitting tenants
This is why rent controls are politically appealing: renters already in a controlled property pay below the market rate in the short run. But the protection is fragile.
A sitting tenant cannot easily move without losing their controlled rent, trapping them in a home that may no longer suit them. And if their landlord eventually decides to sell, they lose their home entirely and re-enter a rental market that is now smaller and more expensive than before.
Renters in the cheapest homes
The properties most likely to be sold are those at the bottom of the market: older stock with the thinnest yields. These are the most affordable homes currently available to rent. When they leave the market, the cheapest options disappear first.
New renters entering the market
A smaller rental market means more competition for fewer homes. New renters, including young people, people moving for work, and those leaving temporary accommodation, face a market with less choice and higher asking rents on the uncontrolled new-let segment.
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