You will probably end up spending most of your budget on a kitchen cabinet design. This will be the most expensive because of the total volume involved in the cabinetry. You may also spend a lot on replacing kitchen countertops or appliances as well.
If what you desire is just some additional space in your kitchen and not giving much priority to the cabinets design complementing your existing furniture then maybe the "stock" cabinets would be suitable for you. These are standardized cabinet units that come with a preset measurement, perhaps not fitting perfectly into your space. But this is a rather simple solution although they could come in fewer kitchen cabinets design to choose from, hence the possibility of being odd among your present furniture.
There are three types of cabinet door shapes, slab, recessed panel, and raised panel.
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