You can apply for the Right to Buy if you've been a council or public sector tenant for three years (it doesn't have to be three years in a row). If you have lived in a property provided by a housing association, the armed services or a public body like an NHS trust, this would count as a public sector tenancy.
The qualifying period does not all have to be with the same landlord. The maximum discount available from April 2021 is £84,600.
More information is available on the Right to buy website and for impartial information and advice, contact a Right to buy adviser.
You must complete a Right to buy application form to apply.