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Kitchen Island Guide

Design IdeasUpdated June 20267 min read

Key Takeaways

  • Allow around 1 metre of clearance on each side of an island.
  • An island needs roughly 3 metres of width in the room to work comfortably.
  • Islands can house a sink, hob, storage, seating or a mix.
  • Running services to an island adds plumbing and electrical work.
  • Where space is tight, a peninsula gives many of the benefits.

A kitchen island is the centrepiece of many London kitchens, adding worktop, storage, seating and a natural social hub. But islands need space to work. Here is how to know if yours has room, and how to get the most from it.

Do you have room?

The non-negotiable rule is clearance: allow around 1 metre on every side so people can move freely and open doors and appliances. In practice, that means a room roughly 3 to 3.5 metres wide, plus the surrounding runs. If your kitchen is narrower, a peninsula attached to one run gives many of the benefits while needing clearance on fewer sides.

What to put in it

  • Storage and worktop: the simplest and most flexible use.
  • Sink: sociable, but needs plumbing and drainage run to the island.
  • Hob: striking, but needs electrics or gas and downdraft or overhead extraction.
  • Seating: a breakfast bar with stools, allowing about 60 cm per stool and a 30 cm overhang for legroom.

Mind the services

Putting a sink or hob in the island means running plumbing, drainage, electrics or ventilation through the floor to it, which adds cost and is far easier during a full kitchen renovation when floors are up. A storage-and-seating island avoids this.

Islands and open-plan

In an open-plan kitchen-diner, an island doubles as a zone divider between cooking and living areas, which is part of why they are so popular. To design a kitchen island that fits your space, contact us or call 07472 424 226.

GS
The GS Renovation Team
GS Renovation & Home Improvements has delivered kitchen, bathroom, structural and extension projects across London for over 30 years. This guide reflects current UK industry pricing and our hands-on site experience.

FAQ

Frequently Asked Questions

How much space do you need for a kitchen island?

As a rule of thumb, allow around one metre of clearance on every side of an island so people can move and open doors and appliances comfortably. That usually means you need a room at least around 3 to 3.5 metres wide, plus space for the surrounding runs. In smaller kitchens, a peninsula is a better fit.

What can you put in a kitchen island?

An island can house a sink, a hob with downdraft or overhead extraction, dishwasher, wine cooler, storage drawers, a breakfast bar with seating, or simply extra worktop and storage. Putting the sink or hob in the island means running plumbing, drainage, electrics or ventilation to it, which adds cost.

Is an island or a peninsula better?

An island is better where you have the space and want access from all sides, while a peninsula, attached to one run or wall, suits narrower kitchens because it needs clearance on fewer sides. A peninsula still adds worktop, storage and casual seating, making it the practical choice for many London kitchens.

How big should a kitchen island be?

A comfortable island is usually at least 1.2 metres long and around 1 metre deep, scaling up with the room. It should be large enough to be useful but leave the recommended clearance around it. Oversized islands in modest rooms make the space hard to move around.

Can you have seating at a kitchen island?

Yes, a breakfast bar with stools is one of the most popular island features. Allow around 60 cm of width per stool and an overhang of about 30 cm on the seating side for legroom. It is a great way to add casual dining without a separate table in an open-plan space.

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