Tax on dividing ownership

Hi, I bought a flat in the UK in 2006. In 2024, I am dividing ownership of the flat three ways, gifting one third each to two of my daughters, and retaining one third myself. I consider that I am disposing by gift of two-thirds of the asset. Do I do the usual CGT calculation, and report two thirds of the gain and two thirds of the costs?

Hi,
That is correct.
Thank you.