Market Harborough Building Society's 'Airbnb mortgages' The lender has two mortgages for hosts on Airbnb and similar websites. MHBS says it "understands our products need to provide bespoke solutions for modern lives". It adds that customers who let their home should contact it for permission and inform their home insurer to ensure they have adequate cover. Holiday let range This allows borrowers to let their property via Airbnb, or a traditional letting agent, whenever they want and with no time restrictions. It requires a rental return of 125 per cent of the repayments. This mortgage differs from a standard buy-to-let because there is no requirement for an assured short-hold tenancy agreement. Residential mortgage with consent to holiday let This allows customers to let or part-let their main residence for up to 24 weeks a year. They can let via Airbnb-type sites, privately or via letting agents. No tenancy agreement is permitted.