Ground floor layout we are doing a side extension

We are starting a side extension in the next 6 to 8 weeks. We have planning permission for a small two storey side extension and roof dormer. The main purpose is to give an extra bedroom on the first floor and an office at attic level. However we need help with the ground floor layout. The planning permission just shows the ground floor section of the extension as a utility with the rest of the ground floor untouched. However we would like to change the layout. Our planning permission reference is 2202/19, Dublin City Council.
We want a utility, we and storage for coats, shoes, backpacks...
Mostly is help with the layout, not really with colours or decorations, as we have 3 young kids and our furniture is functional. We are looking for a lay out that will work for our family.

Thanks

Miriam