The LTA have issued updated Covid-19 guidance, covering  each of the 4 stages of the governement roadmap for easing restrictions. 

A summary grid (version 5) can be downloaded here 

Full guidance can be read here: Coronavirus (COVID-19) - Latest advice 2021 | LTA

Group sessions are permitted and adult social tennis will resume from Thursday.  Anyone attending a group session is requested to scan the venue QR code that will be displayed on each gate.