We have one recently completed in the Shetland Islands, the SaxaVord Spaceport [0], which has been given approval to do up to 30 launches a year. The UK spaceport guide [2] has more details and a few more planned launch sites.

[0] https://www.bbc.co.uk/news/uk-scotland-north-east-orkney-she... [1] https://assets.publishing.service.gov.uk/media/643e6a4222ef3...