Selling after over 14 years

Hello, I g to sell a house in Germany, which I own for over 14 years. In Germany it would be tax free as I own it for so long. I know it will be taxed in the UK my question is how. I bought the house fairly cheap around 60k with all costs, however I renovated it constantly which in total will be probably around 150k over the years, some bills I still have, but not the big ones as they have been paid 2011 when the main renovation took place. I am planning to sell for around 285k, so on how much would I have to pay tax on?

Hi,
You need to work out the gain yourself. Please refer to:
Capital Gains Tax: what you pay it on, rates and allowances
Thank you.