Parametric alcove storage unit. I have not yet finished this but have added a work-in-progress picture without the doors (to be added).
By adjusting the parameters you can alter it to fit into the desired space.
It also echos all the dimensions to the console to make it easier to order the pieces.
The trim to the left and right assumes there is a wall to the left of the alcove but not to the right.
The filler piece to the back wall just needs to be moved to the opposite side as needed when building. I may have miscalculated the depth of the filler piece but since it needs scribing anyway, it may be better to make the rest of the unit then cut that to fit.
This does not include the worktop that would need to be added to the top to finish it off or the 70mm skirting that needs to be added to the bottom.