transfer of ownership

mally54

This link sorta fits in with my question. My mum gifted her house to me about 12 years ago, when she was fit as a fiddle. It was a ex local authority house and i actually paid for it, my mums contibution was her discount for being a tenant. I moved out and got my own house nd my mum has lived there rent free until recently when she became ill and with mobilty problems was rehoused to a housing assocation bungalow. I kept the house and have been done some work in it to sell and thankfully a buyer came to me. The house is sold, not an expensive house £64,000.
I have read the info on the government web site on captial gains tax but not sure if my understanding is correct. So my question is as the property was gifted to me do i take the starting valuation as at the date it was tranferred to me approx 1998.

Thanks Mally