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how to plan a kitchen island: this marble kitchen island was planned in at design stage

How to plan a kitchen island

All the tips and tricks you need to create a feature that is the star of your new scheme

By Paula Woods | 12 October 2021

An island can be a huge asset for preparing food, eating meals or even working from home. But to get the most from it you need to know how to plan a kitchen island. Start by deciding exactly how you will use it, then consider its dimensions, position in the room and the practical features you need.

Retrofitting an island

Retrofitting is possible if the island is simply for storage or seating. But for a multifunctional design that includes a sink or electrical appliances, plan it from scratch at the outset of a scheme. If that’s not possible, fit the island before any flooring goes down to allow for the installation of pipework and power supply. 

Large island with sink at the centre of a modern kitchen

Q Line kitchen in Tempesta Ceramica and Diamante Ceramica, Mereway

The work surface

A marble or stone work surface may require joining if your kitchen island is longer than 3m. Therefore, using two different surfaces for an interesting contrast can look stylish while also disguising the joins. Composite work surfaces, on the other hand, provide a seam-free finish no matter what the size of the island.

contrasting work surfaces on your kitchen island are ideal for zoning

Island with Belgian Black limestone and maple work surfaces, Mowlem & Co

Adaptable layout

A mobile unit with lockable castors is a versatile island option for a small or open-plan space. Move it closer to the oven or sink for food prep, or to make room for an extended dining table. It’s ideal for a busy family kitchen.  

a moveable kitchen island on castors is ideal for a flexible kitchen space

Moveable island with a Carrara marble work surface, Blakes London

Kitchen island lighting   

Use pendants to draw attention to an island or peninsula. They double up as task and mood lighting when fitted with a dimmer. Also, consider adding LED strips beneath an overhanging work surface in order to create a lovely ambient glow in your kitchen. 

Cone pendants in pewter and copper above a kitchen island lend an industrial chic vibe

Brooklyn cone pendants in pewter and copper, from Industville

An island can be a huge asset for preparing food, eating meals or even working from home. But to get the most from it you need to know how to plan a kitchen island. Start by deciding exactly how you will use it, then consider its dimensions, position in the room and the practical features you need.

Retrofitting an island

Retrofitting is possible if the island is simply for storage or seating. But for a multifunctional design that includes a sink or electrical appliances, plan it from scratch at the outset of a scheme. If that’s not possible, fit the island before any flooring goes down to allow for the installation of pipework and power supply. 

Large island with sink at the centre of a modern kitchen

Q Line kitchen in Tempesta Ceramica and Diamante Ceramica, Mereway

The work surface

A marble or stone work surface may require joining if your kitchen island is longer than 3m. Therefore, using two different surfaces for an interesting contrast can look stylish while also disguising the joins. Composite work surfaces, on the other hand, provide a seam-free finish no matter what the size of the island.

contrasting work surfaces on your kitchen island are ideal for zoning

Island with Belgian Black limestone and maple work surfaces, Mowlem & Co

Adaptable layout

A mobile unit with lockable castors is a versatile island option for a small or open-plan space. Move it closer to the oven or sink for food prep, or to make room for an extended dining table. It’s ideal for a busy family kitchen.  

a moveable kitchen island on castors is ideal for a flexible kitchen space

Moveable island with a Carrara marble work surface, Blakes London

Kitchen island lighting   

Use pendants to draw attention to an island or peninsula. They double up as task and mood lighting when fitted with a dimmer. Also, consider adding LED strips beneath an overhanging work surface in order to create a lovely ambient glow in your kitchen. 

Cone pendants in pewter and copper above a kitchen island lend an industrial chic vibe

Brooklyn cone pendants in pewter and copper, from Industville

Image: Handcrafted K1 kitchen in painted tulipwood, Brookmans by Smallbone

Create a peninsula

A peninsula design attached to the wall has some advantages over an island. ‘It’s less space-hungry than an island, but has the capacity for storage and multitasking,’ says Richard Moore, design director at Martin Moore. Services can be chased or run through the adjoining wall.

Get the spacing right

When deciding on the size of your island, make sure you allow for at least 1m clearance all around it. This will provide enough space to pull out bar stools, open cabinets and access appliances, leaving you plenty of space to work. 

leave at least one metre around your kitchen island so you have space to open doors and move around

Arbor kitchen including oak island with black granite work surface, Harvey Jones

A split kitchen island

The luxury of ample floorspace allows you to bring all the action into the heart of the room. Consider a split island with food prep at one end, storage at the other and a bridging breakfast bar for sitting at the centre of everything. 

a split kitchen island can offer space for food prep at one end, storage at the other and a bridging breakfast bar

Bulthaup b3 furniture with oak bridging bar, Kitchen Architecture

Work the space

If you incorporate a peninsula as part of a U-shaped kitchen layout within an open-plan space, it can act as a room divider. Consider including an overhanging work surface to make a breakfast bar. 

peninsula kitchen island with white marble work-surface and breakfast bar with black stools

U shaped peninsula with porcelain worksurface. Photo Rise Design Studio

Create a cooking zone

Keen chefs may wish to create a cooking zone with their kitchen island. Plan the storage to make sure you have utensil drawers below the hob with the deeper pan drawers beneath, so that you have all the tools of the trade close at hand.

kitchen island with cooking hob and storage drawers underneath

Grey mid and bookmatched walnut island with Silestone work surface, Roundhouse

Useful and beautiful

Use an island as a way to bring a standout design feature to your scheme. Choose materials, colours and finishes that contrast with the rest of the kitchen for dramatic impact. 

white and gold marble kitchen island in period home with modern white kitchen

Bespoke kitchen with central island clad in Paonazzo marble, Blakes London

Incorporate structural supports

If knocking down walls or extending gives rise to unavoidable structural supports, ask a designer or architect to incorporate them as part of the island design. Doing so minimises their impact and avoids unnecessary obstructions.

incorporate structural supports into your kitchen island for style and authenticity

Cambia kitchen with Dekton Zenith work surfaces and timber bar, Rational and Open Haus Kitchens

Fitted or freestanding?

Whether it’s in a small room or an open-plan layout, a freestanding island or peninsula will make everything feel more spacious. Select storage-only pieces to prevent plumbing or service outlets spoiling the look. 

freestanding kitchen island painted dark in a country-style kitchen

Sebastian Cox timber kitchen in Inky Blue Black and Natural with aged copper and oak work surfaces, Devol


Get the dimensions right

Top tips from Matt Baker, kitchen designer at Harvey Jones

  • If you’re planning to use an island for storage or as a breakfast bar, there is no need for it to be huge. But as a general guide it should be no smaller than 1,200mm long and 600mm deep if it’s to be a workable addition to your kitchen.
  • Wide islands are sure to make an impact, but they are not always terribly practical, especially if you can’t reach the middle. Try and make it no deeper than 1,400mm.
  • If its primary function is storage, avoid adding a sink and socket tower as these take up valuable cabinet space. A flush- fitted induction hob or built-in pan drawers will make the most of every single inch.
  • When adding a breakfast bar, allow for an overhang of 250- 400mm to ensure adequate legroom and make space for bar stools to tuck neatly underneath. Anything deeper than 300mm will require support from legs or brackets, although the thicker the work surface, the larger an unsupported overhang can be.
  • I recommend allocating 600mm of space per stool for comfort, but in small rooms this can be reduced to 500mm, particularly for seating that will be used by children.
  • If your island is for sitting at as well as for cooking, leave at least 350-400mm between the seating area and the hob for safety’s sake.

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