From our experience, we, Hobson's Choice, would suggest thinking about the kitchen very early on in the restoration planning process.
Listed Building - Does the listed building status prevent changes to the room's structure? Can the walls, floor or ceiling even be touched? Challenges like this are surmountable but can come as a shock if not thought about early on. For example, a solution might be to position kitchen furniture away from the walls, resulting in a room that will require a fresh coat of plaster and paint before the kitchen build commences.
The Kitchen Infrastructure – electrics, plumbing, extraction, broadband.
Modern appliances can have high power demands and need appropriate wiring. If you are moving water and waste services to accommodate a new kitchen layout, pipework will need to be installed.
Finally, extraction ducting will need to be channelled into a ceiling or under the floor. It would be a horrible situation to dig up a freshly laid floor or make a mark on a newly plastered ceiling or wall!
The kitchen is now a popular place to watch TV, listen to streaming music, and work from home. Will the thick walls of the period property allow a strong enough wifi signal to pass through, or do you need to route an ethernet cable into the room? What's the point of having a wireless video doorbell if you can't receive a signal at the back of the house to tell you your friends have arrived?