Complex sentence: South Hunsley, Beverley Longcroft, Withernsea, Headlands and Hornsea Schools all bear a great similarity, hardly surprising when one considers that they were being built at roughly the same time.
Split into simpler sentences: South Hunsley, Beverley Longcroft, Withernsea, Headlands and Hornsea Schools all bear a great similarity. I suppose this is hardly surprising when one considers that they were being built at roughly the same time.