Home Extensions in South London
At Reltic Extend, we help homeowners across South London unlock the full potential of their properties. Whether you own a period terrace, a semi-detached house, or a modern flat, our extensions are designed to give you more space, more light, and a better way of living.
Moving in South London can be expensive and stressful, especially if you already love your neighbourhood. That’s why we believe extending your home is the smarter choice. A bespoke rear extension, side extension, or wraparound extension can provide the extra room you need without the hassle of relocation.
From Clapham and Balham to Dulwich and Greenwich, we’ve helped families across South London create stylish, functional homes. Whether you dream of a spacious kitchen extension, additional bedrooms, or a flexible open-plan layout, we’ll design and build a solution tailored to your lifestyle.
Get in touch today to book your free site survey and start planning your South London home extension.
Built Around You
Every project at Reltic Extend begins with your needs. We take the time to understand how you live and how you’d like your home to work in the future.
Want a generous kitchen-diner filled with natural light? Extra space with a double-storey extension for a growing family? Or a rear extension that brings your living space closer to the garden? Whatever your vision, we’ll design and deliver a home extension that feels perfectly yours.
Our approach is simple and transparent – guiding you through the design & build process so you always know what to expect.
Why a Home Extension in South London Makes Sense
A home extension is more than extra space – it’s a transformation of your lifestyle. By extending into unused areas or opening your home to the garden, you can create an open-plan kitchen, a family hub, or even a private home office. In South London, where properties are in high demand, extensions not only improve daily living but can also increase your property’s value by up to 20%.
For terraced homes, a side return extension is often the best use of narrow alleyways. Detached and semi-detached properties often benefit from wraparound extensions, while families looking for maximum space may prefer a double-storey build. Whatever your needs, we’ll deliver a design that fits your property and lifestyle.
With Reltic Extend, you’ll benefit from:
Complete project management
From surveys and planning applications to construction and finishing touches, we handle everything for you.
Space tailored to your needs
Design your extension around the way you live – whether it’s cooking, dining, relaxing, or working from home.
Modern design features
Incorporate skylights, roof lanterns, or bi-folding doors for a light-filled, contemporary feel.
Clear, honest pricing
We provide fixed quotations with no hidden extras, so you know exactly where you stand.
10-year warranty
Every extension comes with a structural guarantee, giving you peace of mind for years to come.
If your South London home no longer meets your needs, a home extension could be the perfect solution. Whether you’re in Clapham, Dulwich, Greenwich, or Wimbledon, we’ll help you create a space that works better for your lifestyle.
Book your free consultation and start planning your South London home extension today.
FAQs – Who We Are & How We Can Help
Thinking about a home extension in South London and wondering how we can help? You’re not alone – many of our clients want to know more about our approach before starting their project. To make things easier, we’ve answered some of the most common questions about our team, the way we work, and how we support homeowners across South London – from Clapham to Dulwich and Greenwich – at every stage of their extension journey.
Yes – a side return extension is designed to make use of narrow side alleys, giving you more room inside while keeping your garden intact.
Many families choose rear kitchen extensions to create spacious kitchen-diners. Wraparound designs are also in high demand for maximum impact.
We have experience working in sensitive areas and will guide you through planning applications, permitted development rules, and planning services.
Absolutely. With modern glazing, insulation, and sustainable materials, we can design your extension to reduce running costs while adding comfort.
Our architects design every project to blend with your existing property, using matching materials or modern contrasts, depending on your preference.
Yes – we provide clear, fixed quotations and transparent timelines. Use our Cost Calculator for an instant estimate.
Experts in bespoke rear, side, wraparound, kitchen, and double-storey extensions across London.
Our Services
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Contact Us
- 4th Floor, Silverstream House, 45 Fitzroy St, London W1T 6EB
- 020 3576 2851
- office@relticextend.co.uk