There is good information elsewhere about many aspects of access to London’s entertainment venues, including in particular that provided by Artsline.
There’s a new site Seat Plan with useful information, and you will find them at https://seatplan.com/
We will be including overall descriptions of some of London’s major Arts centres where there are several venues close together, or even in the same building, often with parking and catering facilities – all making a visit easier for disabled patrons.