Does this building still exist and if so what is it?

Some kind of tunnel=building_tunnel here to the car park behind the building?

Is there a house number on the side here?

Entrances to this building on both streets?

542 on the side of the building

via StreetComplete 45.0

Unable to answer "What’s the surface of the sidewalk here?" for way/1095914652 via StreetComplete 45.0:

Pavement on one side only

Is the service road to the garages or the foot path named Devanha Lane?

Whinhill medical and police

via StreetComplete 41.2

power=substation here?

Unable to answer "Is there a shelter at this stop?" for node/6617000239 via StreetComplete 45.0:

Can't see the stop sign but evidence there was a stop