I use my under stairs cupboard, accessed at the tall end from my kitchen, as a larder and to store tall cleaning items like the hoover and mop, and my heated airer etc. Narrow shelves run all along one side to house my pantry stores - cans and jars, boxes of teabags etc etc - because I buy bulk when things are on offer to save money. Then next door to the cupboard is my utility room, which also has a loo in it. This is fitted out on one wall with kitchen units up and down, with a kitchen style sink and the washer-dryer. Cupboards are used to store all cleaning and laundry supplies, shoe cleaning kit, candles, empty jam jars for making chutney, stuff for caring for houseplants, pet food, vases, silver polish etc, and extra supplies of loo roll for downstairs. On the opposite wall is a row of pegs for dog walking coats, gardening clothes, hats etc. We use the sink all the time, for watering plants, cleaning walking boots, washing hands after gardening, soaking or hand washing laundry which needs it, cleaning paintbrushes, washing pet bowls etc. The laundry basket lives on the adjacent worktop, over the washing machine. I wouldn’t be without it, but that’s because it’s set up to work for us. If you don’t need space for those things or are happy to do them in your kitchen, then go for it.