All the London railway stations :
Underground lines : Piccadilly, Metropolitan
AccessAble Access Guide :
Accessibility friendly : No entrance/exit. You can change between Metropolitan line eastbound towards Liverpool Street (A step 273mm/gap 27mm) and Piccadilly line eastbound towards Oakwood (B step 175mm/gap 127mm). You can change between Metropolitan line westbound towards Uxbridge (A step 283mm/ gap 30mm) and Piccadilly line westbound towards Uxbridge (B step198mm/gap 142mm).
Rayners Lane is not accessible to wheelchair users due to
stairs between the platform and street level.
There is level (same platform) interchange between Piccadilly and Metropolitan line trains running in the
General description :
More comment : Inclusive Britain Station Guide