PPR and capital expenses

I am a UK non-resident and I have a property in the UK that I am selling. I have owned it for 20 years and have lived in the property as my main home at various times during my period of ownership. When I was absent the property was let. I believe that approx. 16/20 of the gain qualifies for PPR and 4/20 is chargeable. I have also incurred capital expenditure on legal fees defending my title as there was a boundary dispute with my neighbour when the property was let. My question is do I also need to restrict the capital expenditure that I can claim by the same proportion or can I claim all of it against my gain?

Hi,
As you owned it prior to 2015, you can use the rebasing rule, if so, you cannot include any costs prior to 06/04/2015.
Please refer to guidance at Work out your tax if you're a non-resident selling UK property or land Report and pay Capital Gains Tax for UK property disposal from 6 April 2020
Thank you.