Yes – if you are UK resident you may be liable to Capital Gains Tax on disposals of assets located anywhere in the world, (not just in the UK).
Non residency:
If you are non-resident, you may also be liable to Capital Gains Tax on the disposal of UK land and property:
Disposals of other UK land and property from 6 April 2019
If you owned the non-residential land or property before 6 April 2019, then broadly you will only be liable to the part of the gain which has accrued from 6 April 2019.
If you purchased the property after 6 April 2019, then the whole gain will be chargeable.
You must report the disposal within 60 days of completion using HMRC’s Report and pay CGT on UK property service on GOV.UK.