Bridging loan costs in the UK usually add up to around 7% to 15% of the loan...

https://www.pure-bookmark.win/bridging-loans-in-the-uk-usually-cost-between-7-and-15-overall-monthly-1

Bridging loan costs in the UK usually add up to around 7% to 15% of the loan total. Monthly interest rates tend to sit between 0.55% and 1.25%. On top of that, arrangement fees, valuations, and legal charges all add to the bill