Islands are the most requested kitchen feature and the most frequently regretted, almost always for the same reason. They get squeezed into rooms that cannot accommodate them, and a cramped island makes the entire kitchen feel smaller and work worse than no island would have.
The space you need is non-negotiable: a minimum of 1,000mm clear on every side, and 1,100 to 1,200mm to be genuinely comfortable. Below that, two people cannot pass, an open dishwasher blocks the route, and the room feels permanently congested.
If your room cannot give you that, a peninsula delivers most of the same benefits without needing clear space on four sides. That is not a consolation prize, it is frequently the better design.
If you do have the space, what follows are ideas organised by what the island is actually for. Written from over 20 years of designing kitchens across Jersey.
Decide the job before the design
An island that exists because islands are fashionable tends to become a place where post and car keys accumulate. An island with a defined job earns its space.
| Island type | Main job | Space needed | Services required |
| Prep island | Clear worktop for preparation | Smallest | None, or a socket |
| Storage island | Cupboards and drawers | Small to moderate | None |
| Seating island | Breakfast bar, social space | Moderate | Socket, lighting |
| Sink island | Washing up, prep with water | Large | Water supply and waste |
| Hob island | Cooking as the social focus | Largest | Power or gas, plus extraction |
| Combination | Two or more of the above | Largest | Varies |
Most islands should do no more than two things well. Trying to fit a hob, a sink, seating and storage into one island produces a compromised version of all four.
The prep island
The simplest and in many ways the most useful.
An uninterrupted stretch of worktop, with nothing cut into it, positioned between the fridge and the hob so it falls naturally into your working route.
Why it works: most kitchens are short of clear worktop rather than short of storage. A prep island gives you a generous working surface with access from both sides, so two people can work without competing for the same metre.
Ideas worth considering:
- An integrated chopping surface, such as a section of end-grain timber set into a stone worktop
- A socket in the side panel for a stand mixer or food processor, so it is used on the island rather than occupying the main worktop
- A pull-out bin within the island, since the bin should sit in the prep zone and this puts it exactly there
- Deep drawers below for mixing bowls, boards and the equipment you use while prepping
Space: the least demanding island, since there are no doors or appliances needing clearance on the island itself.
The storage island
Where the room is short of cupboard space rather than worktop.
Ideas:
- Drawers rather than cupboards throughout. A drawer brings its contents to you, and an island cupboard is awkward to reach into because you cannot get close to the back.
- Deep pan drawers, which suit the island’s generous depth
- Storage from both sides, with drawers one side and shallower shelving or a bookcase on the other
- A built-in wine rack at one end
- Recycling separation, which needs more volume than most kitchens allow for
Worth knowing: an island is usually deeper than a standard base unit, often 900mm to 1,200mm. That means drawers can be deeper than normal, which is a genuine storage gain, but very deep drawers need good quality runners rated for the weight.
The seating island
The most common reason people want an island, and the one where the details matter most.
| Seating height | Surface height | Width per person | Knee depth needed |
| Table height | 750mm | 600mm | 350 to 400mm |
| Counter height | 900mm | 600mm | 300mm |
| Bar height | 1,050 to 1,100mm | 600mm | 300mm |
The two mistakes people make:
Not enough width per person. Below 600mm each, people sit with elbows touching. An island seating three comfortably needs 1,800mm of clear run, not counting the structure at each end.
Not enough knee depth. The worktop has to overhang the carcass so legs can go underneath. Without at least 300mm of overhang, people sit sideways on and it is uncomfortable within minutes. An overhang beyond about 300mm usually needs support, either brackets underneath or a thicker worktop material.
Other ideas:
- Seating on the opposite side from the cooking, so guests are not sitting in the working zone
- Counter height rather than bar height if children or older family members will use it regularly, since it is easier to get on and off
- A socket at seating level if anyone will work there
- Pendant lighting above, on its own switch, which defines the seating area and is one of the few decorative decisions that genuinely changes how the space is used
Space: behind a seated person you need around 900mm minimum and 1,100mm to let someone pass behind them. This is in addition to the general circulation, so a seating island is more demanding than its footprint suggests.
The sink island
Popular, and more involved than most people expect.
Why people want it: washing up facing into the room rather than at a wall, and a water source in the middle of the working space.
What it actually requires:
- A water supply run to the island, which means pipework under the floor
- A waste run with a consistent fall to the drain, typically around 1 in 40, meaning the pipe drops roughly 25mm per metre travelled
- Often a dishwasher alongside it, since the two belong together
The constraint that decides it: the waste run. On a suspended timber floor, pipework runs between the joists and this is manageable. On a solid concrete floor, the pipe has to go into the floor, which means breaking out and relaying concrete. That is where the cost sits, and it is why a sink island is straightforward in one house and expensive in another.
Design ideas if you go ahead:
- An undermounted sink with the worktop running cleanly to the edge, since an inset rim on an island is visually prominent
- A drainer groove milled into the worktop rather than a freestanding drainer, which otherwise sits permanently on the island
- Storage below for cleaning items, with the dishwasher adjacent so unloading is one movement
- Keeping the sink off-centre, so there is still an uninterrupted stretch of prep worktop
One practical warning: a sink island is visible from the whole room, including from wherever people sit. Washing up is on display. Some households find that fine and others regret it.
The hob island
The most dramatic option and the most technically demanding.
Why people want it: cooking facing into the room, which turns the cook into part of the gathering rather than someone working with their back to everyone.
What it requires:
- A substantial electrical supply for induction, or a gas run for gas
- Extraction, which is the real constraint
Extraction is the decision that makes or breaks a hob island. Three options:
An extractor hood suspended above the island. The most effective, since it vents outside through ducting run in the ceiling void. It is also visually dominant, and in a room with a flat ceiling below a bedroom, the ducting route may not exist.
A downdraft extractor rising from the worktop behind the hob. Discreet and increasingly good, but less effective than a hood because it works against the natural rise of steam, and it occupies a chunk of the island’s internal storage.
A recirculating hood, filtering and returning air to the room. Easiest to install and the least effective, particularly if you fry, use a wok or cook with strong aromatics.
If you cook seriously, plan the ducting before anything else. It determines whether the island can take a hob at all, and discovering the route does not exist after the layout is agreed is an expensive conversation.
Design ideas:
- Clear worktop on both sides of the hob, 400mm minimum each side, since there is nowhere else to put a hot pan down
- Pan drawers directly beneath, which is the most logical storage location in any kitchen
- No seating directly behind the hob, because splashes and heat reach further than people expect
Shape and proportion
Rectangular is the default and the most efficient. It suits most rooms and gives the most usable worktop per square metre.
Curved ends are a strong current trend, with the shift away from boxy linear forms being one of this year’s clearer directions. They cost considerably more, because a curve is made by laminating layers around a former rather than cut from a sheet. A single curved end is a good compromise.
L-shaped and angled islands can work in irregular rooms but need careful thought, since the inside of the angle becomes an awkward corner.
Two smaller islands instead of one large one is occasionally the answer in a very large room, separating cooking from social.
On proportion: an island should relate to the room rather than filling it. As a rough guide, an island works when it occupies no more than about a tenth of the floor area, with the required clearances maintained on every side.
Materials and finish
The island as a contrast piece is the most common current approach: the perimeter run in one colour, the island in another, often a deeper or warmer tone. It breaks up a large expanse of cabinetry and gives the room a focal point.
Timber islands against painted perimeter units suit period and stone properties particularly well, and sit comfortably with exposed beams and granite.
Waterfall ends, where the worktop material runs down the side to the floor, are striking and expensive, commonly £800 to £2,000 per end.
Panelled or beaded end panels rather than plain ones, which is a relatively cheap way to make an island read as a piece of furniture rather than a box.
A different worktop on the island, such as timber on an island against stone elsewhere, which gives a warm working surface and visual separation.
Structure and the practical checks
A few things worth confirming before committing.
Floor loading. A stone-topped island is heavy. On a suspended timber floor, particularly in an older property, the structure may need checking or strengthening.
Fixing down. An island needs to be fixed to the floor, which means a suitable substrate.
Floor finish underneath. Lay the flooring before the island goes in, so the floor runs continuously beneath it. Otherwise you have a visible boundary if the island is ever removed.
Access during installation. An island carcass and a stone worktop both have to physically reach the room. In older properties with tight doorways and narrow stairs, this needs checking at survey, and it sometimes means an additional joint in the worktop.
Islands in older Jersey properties
Worth noting, because the island has to sit in a room that is rarely regular.
The room is usually the constraint rather than the budget. Cottages, converted outbuildings and older townhouses frequently have rooms that are large enough on paper and awkwardly shaped in practice, with the required clearances achievable on three sides and not the fourth.
Floors fall. An island on a sloping floor is levelled independently and the difference absorbed in the plinth, exactly as with the perimeter units.
Ducting routes are harder. Thick walls and solid floors above make running an extractor duct from an island more complicated than in a modern build. Worth establishing early.
The peninsula is often the better answer. In a room where an island would leave tight circulation on one side, a peninsula off the end of an existing run gives the extra worktop, the seating and the sense of division while keeping the route through the room clear.
Frequently asked questions
How much space do I need for a kitchen island?
A minimum of 1,000mm clear on every side, and 1,100 to 1,200mm to be comfortable. If anyone will sit at it, allow 900mm minimum behind a seated person and 1,100mm to let someone pass behind them.
Can I put a sink in a kitchen island?
Yes, though the cost depends on the floor. The waste pipe needs a consistent fall to the drain, which is straightforward on a suspended timber floor and much more involved on solid concrete, where the floor has to be broken out.
What extraction do I need for a hob in an island?
Either a suspended hood ducted outside, which is the most effective, a downdraft extractor rising from the worktop, which is discreet but less effective, or a recirculating hood, which is the easiest to fit and the weakest. If you cook seriously, plan the ducting route before agreeing the layout.
How many people can sit at a kitchen island?
Allow 600mm of width per person and at least 300mm of worktop overhang for knees. An island seating three needs around 1,800mm of clear run, not counting the structure at each end.
Is a peninsula better than an island?
In many rooms, yes. A peninsula gives the extra worktop, seating and sense of division without needing clear circulation on four sides, and it keeps the natural route through the room open. In a room that is not comfortably large, it is usually the better design.
What should a kitchen island be used for?
Pick one or two jobs rather than all of them. Prep, storage, seating, a sink or a hob all work well individually. An island attempting everything tends to do each of them poorly.
Getting started
The most useful first conversation establishes whether the room can take an island at all, and if so what job it should do. A survey settles the circulation, the floor structure and whether an extraction route exists, which between them decide more about an island than any design choice.
Davision Interiors Ltd has designed, built, finished and installed kitchens across all parishes of Jersey for over 20 years, handling full renovations from strip-out to snagging, supplying and fitting worktops alongside the cabinetry, with spray finishing and French polishing carried out in house. We will tell you honestly if a peninsula would serve the room better than an island. Every project starts with a free design and survey visit, all work is covered by our workmanship guarantee, and we are fully insured. Get in touch to arrange a visit and a no-obligation quote.
Two notes outside the copy: the dimensions are standard industry figures, so adjust any that differ from how the client normally specifies, and add a phone number or contact page link to the closing paragraph.