House Extensions
Your dream home starts here.
Smart Investments
Increase the value of your property with a high-quality house extension.
Tailored Designs
You dream it. We build it – From simple layouts to wrap-around extensions.
Stress-free Builds
We have over 40 years of experience in house extensions across London.
London House Extension Specialists
At Glenward Builders, we specialise in high-quality house extensions across London, helping homeowners unlock the full potential of their properties. A house extension is one of the smartest ways to create more living space without the stress, cost, and uncertainty of moving home. With London property prices at a premium, upgrading to a larger house can cost hundreds of thousands of pounds.
A well-designed extension, on the other hand, delivers impressive additional space for a fraction of the price. Whether it’s a rear extension, kitchen extension, or a wrap-around design, the transformation – and the value for money – can be remarkable. Imagine what you could do with that extra room, all while avoiding estate agent fees, stamp duty, and the upheaval of relocating.
House Extension Options
✅ Rear Extension: Perfect for expanding kitchens and living areas at the back of properties with usable garden space.
✅ Side Return Extension: Well-suited for widening rooms by utilising any unused side space.
✅ Wrap-Around Extension: Great for generating ground-floor space, particularly for Victorian and Edwardian terraces.
✅ Double Storey Extension: Cost-effective and preferred by growing families who require added bedrooms or bathrooms.
✅ Single Storey Extension: A smart option for adding space with minimal disruption throughout the build.
From Dream to Doorstep
Ready to Start Your Project?
Contact us today for a free consultation.
Recent House Extensions Near You
Frequently Asked Questions
How does the house extension process work?
Our process is designed to be clear, flexible, and stress-free, adapting to the complexity of your project.
- Initial Consultation – We discuss your ideas, budget, and requirements, and assess your property.
- Concept Design – For more complex projects, we create tailored designs that maximise space and functionality.
- Planning Permission – Where required, we manage the planning process and liaise with local authorities on your behalf.
- Build – Once everything is approved, our experienced team delivers the build efficiently and to the highest standards.
For simpler projects, we can move straight from the initial consultation to the build stage, keeping the process fast and cost-effective while still ensuring excellent results. Throughout every step, you’ll be kept fully informed and can enjoy complete peace of mind.
How much does a house extension cost?
Cost is often the biggest consideration when planning a house extension in London, but it’s not something that can be accurately priced without first understanding your project. Factors such as size, design complexity, materials, and planning requirements all influence the final cost.
That’s why we offer a free, no-obligation consultation with one of our specialists. This allows you to discuss your ideas, explore what’s possible for your property, and receive clear guidance on the scope of the work and an accurate estimate of the overall cost.
How long will a house extension take?
As you can appreciate, the timeline for a London house extension depends on the size and complexity of the project. However, during your free consultation, we’ll be upfront with a clear project timeline so you know exactly what to expect from start to finish.
Smaller London house extensions can often be completed within a few weeks, while larger or more complex builds may take several months. Factors such as planning permission, design approval, and weather conditions can also affect the schedule.