Yes, single-family homes can have multiple kitchens. But, be careful to check your local zoning laws. If the house becomes two separate sections it may be defined as a multi-family home.
Furthermore, Having two full kitchens can also come across as a multi-family home. The best way to toe the line is by adding a kitchenette.
Why add a kitchenette?
Kitchenette: a small kitchen or part of a room equipped as a kitchen.
Usually, kitchenettes have every function of a normal kitchen without the range. The goal of adding a kitchenette is its function as a side kitchen. This means that it would have no intention of functioning as the main single-families home kitchen.
Zoning laws in your area
If you plan on building a full second kitchen in your home you will need to check zoning laws. Different areas have different laws. If adding a second kitchen turns your single-family home into a multi-family home then you can have issues.
If you want to learn more about zoning laws check out this article!
Are there any codes against adding kitchens?
Under building codes, you can build as many kitchens as your heart desires in a residential dwelling. There is nothing that prohibits building extra kitchens in the building codes.
Should you add an extra kitchen?
In my opinion, if you have a large family go for it. Cooking at home is a hobby for me that I really enjoy. I always have invested a lot of time and money in my home’s kitchen. I say having a second kitchen is a bonus and you should do it.
