All the London railway stations :
Aldgate Station - in February 2019 - really not accessible
The bus station opposite Aldgate Station - in February 2019 - a lot more accessible
Aldgate East is not an accessible public transport station for wheelchair accessibility due to the 40 steps between street and platforms. Stairs are also needed to change platforms at this station.
There is a good bus stop outside, and a bus station. From the bus stop opposite Aldgate, you are able to access two of the better routes into central London.
The bus 15 which runs from Blackwall, via Aldgate, the Tower, Cannon street, St Pauls, Aldwych, Strand etc is brilliant most of the time.
If you return via the 15 bus, and get off at Tower of London, there is a very accessible Tower Gateway station on the very accessible DLR line. Two stops along the DLR, at Limehouse, you could change onto the c2c Rail line if required. A ramp would be needed here, but there always appear to be staff available.
The bus 25 from Aldgate travels as far as City Thammes Link. If you mix these two buses, as I did one day, it is fairly easy to swap lines at City Thames Link with a short walk. The bus 25 is also mirrored by bus 8 which runs from Liverpool street, and continues on to Tottenham Court road station / St Giles.
Underground lines : Metropolitan, Circle
Accessibility friendly : Aldgate is not an accessible underground train station to wheelchair users. The station has stairs access, of 40 steps, to platforms only, making it accessible to Guide Dog users.
General description :