Kitchens require at least two 20A small appliance circuits for the receptacles and nothing else. Dedicated circuits for the fridge, microwave, dishwasher, etc... are sometimes advised but not strictly required. The gas stove can plug into one of these circuits. If the entire apartment is wired with only two circuits, it's way out of being compliant with the modern code. You may have a big can of worms here.

Note that you'd best cozy up with a good electrician familiar with older buildings and coop issues. The coop may have some very strong requirements about who you use as well. Apartments are not DIY projects and dealing with the management of a coop can be even more daunting.

Ron;

As usual, all your comments are appreciated and well taken. This is not a DIY project. I was told by my wife (who has seen the breaker box) that there are "many" slots which are unused and there is one box per apartment. In addition, she said that there is at least one large diameter pipe (2"?) going up to each apartment, so I think pulling the additional circuits won't be a problem. This particular apartment is original to the 1924 building; several others have been upgraded. Of course, the coop board has to approve every changes and the kitchen renovation company, which has been used by other apartments there, will use their own electric contractor. My interest is that we will be financing part of this project, which currently has an estimate of $60,000.

Only other advice I can give is make sure your "kitchen renovation company" actually employs or contracts to competent electricians. I've seen absolutely horrid stuff done to the wiring by cabinet installers who think they are electricians.

We had a kitchen remodel about 18 months ago and these were the circuits they installed: two small appliance circuits, microwave, dishwasher, garbage disposal, refrigerator, range hood, lights (shared with dining room). and dual-fuel gas range (50 amp 240 volt circuit was needed). So I have eight 120 volt circuits and one 240 volt circuit. The lights and disposal are on 15 amp circuits, and the rest are 20 amp. I'm sure this is overkill, but all walls were open in the kitchen and the basement below, and that was the best time to get it wired.

I think the minimum I would install is two small appliance circuits (20 amp each), microwave/gas stove (20 amp) circuit, and one other circuit shared by the rest of the built-in appliances (20 amp) . My rationale is that most new microwaves are quite powerful and draw quite a bit of current. If its mounted over the range (like many are) it also has a fan and light.

Bruce

Don't forget the requirements for the rest of the apartment. A dedicated 20 amp circuit is needed for the bathroom. Every circuit needs to be AFCI protected (depending on which generation of the electrical code is in effect). A receptacle is required within 6 foot of any spot along a wall, without crossing a doorway, excepting isolated wall segments less than 24".

A subpanel in the apartment might be a better approach than bringing individual circuits up from the basement.

JM$.02W

Thanks, Randy. I also thought about a subpanel in the apartment. I'm not sure the coop board would allow that and I don't know where the existing conduits end in the apartment. She is not upgrading the entire apartment.