Looking at the photos of the Motor Station and Astra, there's quite a bit of similarity in the ground floor design - was it a design that was modified and the cinema was built on that site instead of the garage maybe?
Dave, I knew you'd get it......eventually.
The Llandudno Motor Station was built on the site of a market garden called
The Vinyard and run by the Brierley family, who operated Creams Coaches. Many people believed that the Winter Gardens complex was originally built on the Vinyard site, but in fact the Winter Gardens were built out of the shell of the Llandudno Motor Station.
Compare the two pic's and look at the similarity of the bottom of both buildings.
Additionally, look at the ramp on the Deganwy Ave side of the Llandudno Motor Station - that was used at the Winter Gardens/Odeon/Astra for many years to load items into the building. I seem to remember "Herbie" - "The Love Bug" driving up there at one time.