At KT5 Construction, a trusted extension builder in Surrey and London, we’re often asked, “Does a kitchen extension add value to a house?” The short answer is—yes, it can. But the real value lies in how it’s planned, designed, and executed. Whether you’re staying long-term or preparing to sell, a well-designed kitchen extension can uplift your home’s value by up to 20%, according to industry experts.

Why the Kitchen Extension Remains the Top Value Booster

1. It’s the Heart of the Modern Home

The kitchen is no longer just a cooking zone—it’s a multifunctional hub for dining, relaxing, entertaining, and even remote working. A thoughtfully extended kitchen enhances everyday living and creates a central space that resonates with both current homeowners and potential buyers.

2. Tangible Value Gains

Our Experts note that property values can rise by 15–20% when kitchen extensions are designed with functionality and lifestyle in mind.

3. Improved Layout, Flow & Light

By adding square footage and improving natural light through rooflights or bifold doors, your extension won’t just look better—it’ll feel better too. Designers recommend connecting the kitchen to the garden to maximise value.

Top Features That Add the Most Value

High-Quality Materials & Finishes

Premium worktops like stone or granite, custom joinery, and built-in appliances not only look great but also last longer—appealing directly to discerning buyers.

Natural Light Enhancements

Rooflights and large glazing panels ensure your new kitchen feels airy and open. Buyers often associate light-filled spaces with modernity and wellness.

Versatility & Layout

Including a kitchen island, utility room, or pantry can greatly improve functionality. Flexible layouts that support social cooking, dining, and family time are a major draw.

Sustainable, Energy-Efficient Features

Installing energy-efficient appliances and good insulation adds eco-appeal and reduces future bills—a key concern for modern buyers.

Cost vs Return: What Should You Expect?

• • Kitchen Extension Build Costs: £1,500–£2,250/m²

  • 30m² Build Estimate: ~£45,500–£67,500 + VAT

  • New Kitchen Fitting: £8,000–£20,000+

When done well, the uplift in value can exceed your total investment, especially in sought-after locations like the suburbs of London or Surrey.

Mistakes to Avoid When Extending

• • Poor design cohesion – The extension must feel part of the original home.

  • Oversized structures – Taking up too much garden space can devalue the property.

  • Cheap finishes – These often reduce buyer appeal and long-term return.

  • Ignoring planning advice – Work with professionals like KT5 Construction who understand local planning intricacies.

KT5 Construction: Experts in Value-Driven Kitchen Extensions

With years of experience across Surrey and London, KT5 Construction understands what makes a kitchen extension truly valuable. From early design consultations to planning permissions and flawless finishes, we manage the entire process to ensure your investment pays off.

Why Homeowners Choose Us:

• • Transparent pricing and timelines

  • Creative, practical space design

  • Proven experience with permitted development rules

  • Dedicated project managers

FAQs – Does a kitchen extension add value to a house?

1. Does a kitchen extension add value to every house?

It can—especially if it improves space, flow, and daylight. However, it must be proportionate and well-integrated with the rest of the home.

2. What’s the average ROI on a kitchen extension?

Industry data suggests a return of 15–20%, depending on quality and location.

3. Is it worth doing a small kitchen extension?

Yes. Even small additions can greatly improve layout and usability, especially when coupled with smart design.

4. Can a bad kitchen extension reduce home value?

Yes. Extensions that are poorly designed or built cheaply can harm resale value and reduce appeal to future buyers.

Call to Action

Thinking about a kitchen extension? Speak with KT5 Construction today for a free consultation and find out how we can help you add real, lasting value to your home.

Contact Us Now or call 08450537224