Under the Landlord and Tenant Act 1987, resident landlords are exempt from offering the Right of First Refusal, so long as they meet the following conditions: The building is not a purpose-built block of flats, that is, it must be a property, a house for example, which has been converted into flats since its original construction; and The landlord genuinely lives in the building as his only or principle residence and has done so for the past twelve months