In order to improve the housing stock in the capital, tenants can now use the online 'checker'. A new online ‘check and challenge’ tool aims to empower tenants in the capital by helping them claim back rent from rogue landlords. Mayor of London Sadiq Khan’s new Property Licence Checker has been set up so tenants can make sense of the many schemes running across London boroughs. It tells them if their landlord or property is licensed and offers help to make rent repayment orders while councils will gather intelligence to target enforcement. Khan says it’s vital that every privately rented property is licensed so landlords can be held to account for the conditions their tenants live in.