There’s a few factors that affect the discount that you can get on a Right to Buy property. These are:
How long you’ve lived in the property
Whether you’re buying a house or a flat
The value of the property
Any money that your landlord has spent on the property
On a house, you can get a discount of 35% when you’ve lived there between 3 and 5 years, with this increasing by a further 1% every additional year.
On a flat, you can get a discount of 50% when you’ve lived there between 3 and 5 years, with this increasing by a further 2% every additional year.
Use the official Right to Buy calculator to work out your discount.