We are in the process of designing a new house and are trying to fit a scullery in behind the kitchen. It's all good and well to go by what the designer says, but I would like some advice from peoples personal experience.

It will be a long narrow scullery with bench top and storage along one wall, with an unused wall opposite.

To fit into the plan we need to keep it as narrow as possible, while still making it comfortably usable.

What is the minimum bench depth we could get away with (it will still needs to accommodate a sink)? Some say you should stick 600mm, and others say you can reduce the depth to save space and cost (but I can't find any guidelines on how shallow is too shallow).

How much space do we need between the bench and the opposite wall?

Thanks