Shared ownership leases usually allow you to staircase in multiples of 25% or 10% until you own the property outright. You will need to refer to your own lease for specific details.
Usually you can purchase all the remaining shares, but in some rural areas this may be limited to a maximum of 80%. You should check your lease for full details of the maximum amount that you can buy and whether there are any other restrictions.
A current valuation must be provided by a Royal Institute of Chartered Surveyors (RICS) certified surveyor before solicitors can be instructed. The valuation must be valid at date of completion, even if this means re-doing it.
More information on The Process of Staircasing can be found here.
Alternatively, you can contact Home Ownership on 0300 303 8535 or use the form