Designing a Kitchen Extension: The Complete Guide

Last Updated: 13 October 2025

Designing a kitchen extension is one of the most transformative home improvements you can undertake. Whether you’re looking to create a stunning open-plan living space or simply need more room for cooking and dining, a thoughtfully designed kitchen extension can dramatically enhance both your home’s functionality and value.

With over 60 years of experience crafting bespoke home extensions, we’ll guide you through everything you need to consider when planning your dream kitchen extension.

Planning Your Kitchen Extension Design

Before looking into the aesthetic details, there are several important factors to consider.

1.Assess Your Space and Requirements

  • Consider how much additional space you need
  • Think about your ideal kitchen workflow
  • Evaluate natural light sources and orientation
  • Plan for adequate storage solutions
  1. Budget Planning

A well-planned budget is essential for any kitchen extension project. Typical costs include:

  • Building works and foundations
  • Windows and doors
  • Kitchen units and appliances
  • Lighting and electrical work
  • Plumbing installations

Popular Kitchen Extension Styles

Single-Storey Rear Extension

The most common type of kitchen extension, perfect for creating open-plan living spaces. Can be designed with:

  • Bifold doors for seamless garden access
  • Roof lanterns for natural light
  • Feature windows for character

Side Return Extension

Ideal for Victorian terraced houses, utilising the narrow alley space alongside the property. Benefits include:

  • Maximises unused space
  • Creates wider, more practical kitchens
  • Opportunity for innovative lighting solutions

Material Considerations

Choosing the right materials is essential for both aesthetics and longevity.

Windows and Doors

  • Timber: Traditional appeal with excellent insulation properties
  • Aluminium: Modern look with slim sightlines
  • uPVC: Cost-effective and low maintenance

Structural Elements

  • Oak beams for character
  • Steel supports for open-plan designs
  • Glass panels for maximum light

Lighting and Ventilation

Effective lighting and ventilation are essential for a successful kitchen extension. Important considerations include:

  • Strategic placement of windows and doors
  • Combination of task and ambient lighting
  • Consideration of extraction systems

Legal Requirements and Planning Permission

Before proceeding with your kitchen extension, it’s important to ensure you have all the required permissions. These may include:

  • Necessary planning permissions
  • Building regulations approval
  • Party wall agreements

At Reddish Joinery, we specialise in creating beautiful, functional kitchen extensions that perfectly complement your home. Our expert team can guide you through every step of the process, from initial design concepts to final installation.

Contact us today to arrange a consultation and bring your kitchen extension dreams to life. Our experienced designers will help you create a space that’s perfectly tailored to your needs and lifestyle. Book your free consultation now by calling Reddish Joinery on 0161 969 7474 or by sending us a message using our online contact form.

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