Just to re-iterate what I said before:
303 Hoylake Road was a bungalow and was lived in by a friend of mine. They were offered a large (in those days) amount of money by Tesco to move out. This they did in 1964/65 and Tesco demolished the bungalow and built a new store, which is now occupied by Iceland.
Next to the bungalow was an old shop, this was brick built and from what I remember of it, I would have dated it to about the 1920s. The shop was closed in the time I visited the bungalow next door (from about 1959 to 1965). The shop windows were covered in brown paper, but there was an old fashioned clock hanging in the window, in front of the brown paper. This clock always showed the right time. Locally the shop was known as "Clock House". The shop was apparently occupied by an elderly gentleman, who was also offered money by Tesco, but would not leave.
When the old man died, there was an article about it in, I think, the Birkenhead News
(could have been the Daily Post), which showed a picture of hundreds of photographs being burnt in the back garden. The shop was demolished and the site became the car park it is today.
The advertising hoardings were next to the shop, not in front of it, the shop (and hoardings) were set back from the road further than the front wall of 303 and the building on the other side.
The shop was occupied in 1938 by a florist, Mr Ernest Byrom. I do not know if the elderly gentleman in the late 1960s was Mr Byrom, but I suspect it was.