Before you fall in love with a cabinet door, spend an hour with a tape measure. In a compact kitchen, the distance between the sink, the hob and the fridge matters more than any finish. These three points form the work triangle, and keeping each leg between roughly 1.2m and 2.7m means you can cook without pirouetting around an open oven door.
Measure the room's true dimensions, then note the fixed obstacles: the boiler, the soil pipe boxing, the position of the window, the direction every door swings. A single door that opens into your only stretch of worktop is enough to ruin an otherwise sensible layout. Leave at least 1m of clear walkway between facing runs, or 1.1m if two people cook together regularly. If you have less than that, consider a shallow 300mm-deep run on one side instead of full-depth units.
Corners are where small kitchens quietly lose a third of their storage. A blind base unit with a single shelf is effectively a bin you can't reach into. There are better options, and most of them cost less than you'd expect.
Above the worktop, a corner wall unit with a carousel or a pair of angled shelves keeps mugs and jars within easy reach. If the corner is awkward, don't force storage into it — a continuous worktop that turns the corner is often more valuable than a cupboard you'll never open.
Appliances have quietly slimmed down, and a compact kitchen benefits enormously.
Where possible, keep the washing machine out of the kitchen altogether, or specify an integrated model with a full-height door so it reads as cabinetry rather than appliance.
Worktop is the scarcest resource in a small kitchen, so protect it. Choose a single large bowl over a one-and-a-half configuration; an undermount sink with drainer grooves routed directly into the stone removes the need for a draining board. If you can, position the sink slightly off-centre so you gain one generous prep stretch rather than two cramped ones.
Consider a domino or two-zone hob to free up surface, and buy a chopping board that sits over the sink when you need extra workspace. Fit sockets into the splashback rather than above the worktop where possible, and add a pop-up socket tower in a deep drawer if you need more. A pull-out worktop extension over a slim base unit turns 400mm into a usable breakfast spot without widening the room.
A single pendant in the middle of a small kitchen flattens the whole room and makes it feel tighter than it is. Layer your lighting instead.
Add a dimmer on the ambient circuit so the kitchen can shift from workhorse to wine-and-conversation without a trip to the consumer unit.
Height is free storage, so take it. Run wall units to the ceiling with a scribed filler, or use the top 300mm for a shallow run of closed cabinets for occasional items. A tall 600mm larder column gives you the food storage of a pantry in the footprint of one unit, and full-height handles-free doors keep the run looking like a single calm plane.
Stick to two or three finishes, choose matt or gently textured surfaces over high gloss if the room is narrow, and repeat one material across the splashback, worktop and floor to blur the boundaries. Slim handles, or none at all, reduce visual clutter. Then step back: a kitchen that is measured, lit and stored properly will feel generous long before it feels small.