Know which room in your home will be designated as office space, and consider things like possibly adding double French doors, or even pocket doors, to aid in noise reduction, etc.

If the room is smaller, consider double French doors without mullions (the divider line accents) which will make them easier to clean from little fingers or puppy noses, and will create a glass wall effect – very timeless. This will give separation without closing off the space from the rest of the home or making the office feel super small inside.