Hi,
There are no tax implications for transferring savings to a UK bank account unless they generate interest or dividends.
These would then potentially be subject to tax.
Further guidance can be found here:
Tax on savings interest
Tax on dividends
However, if you are resident in the UK, at the time you dispose of the property, you may have UK capital gains tax to pay.
Whether a gain arises or not, the disposal must be declared an a self assessment tax return.
Thank you.