Bridging loan costs in the UK usually total between 7% and 15% of the loan...

https://www.oscarbookmarks.win/bridging-loans-in-the-uk-usually-cost-between-7-and-15-in-total-monthly

Bridging loan costs in the UK usually total between 7% and 15% of the loan amount. Monthly interest rates often sit around 0.55% to 1.25%. On top of interest, you’ll need to factor in fees for arrangement, valuation, and legal work