Southwark is one of London’s most diverse and fast-evolving boroughs — a place where historic homes sit alongside contemporary developments, and where space is often at a premium. For homeowners looking to enhance their property without major structural overhaul, a side extension offers a discreet yet highly effective way to add usable space and modern functionality.
At Herko, we specialise in delivering high-quality side extensions that are tailored to each property’s layout, architectural style, and the way you live — unlocking hidden potential with minimal disruption.
What Is a Side Extension?
A side extension involves building into the narrow strip of land that runs alongside a house — commonly found in Victorian and Edwardian terraces or semi-detached homes. This underutilised area, often referred to as the side return, can be transformed into valuable internal space by extending the ground floor sideways, usually towards the boundary wall.
A side extension is perfect for:
- Expanding a kitchen or creating a spacious kitchen-diner
- Adding a utility room, pantry, or cloakroom
- Improving light and layout with rooflights or glazed side panels
- Creating a better connection to a rear garden or courtyard
Even modest extensions can make a significant difference, especially when paired with clever layout changes and high-quality finishes.
Why Extend in Southwark?
Southwark is home to a wide variety of housing types — from period terraces and post-war townhouses to new-build properties. Many of these homes feature side access or narrow external space that, although often overlooked, can be used creatively to expand and modernise interiors.
A side extension in Southwark is not just about gaining more room — it’s about enhancing the way a home functions. Whether you want to create a light-filled family kitchen, open up a cramped ground floor, or simply make better use of the space you already have, this type of extension offers excellent value with a relatively low impact.
At Herko, we help homeowners reimagine their homes with smart, sympathetic design — built around both the property and the people living in it.
Planning and Practical Considerations
Many side extensions can be completed under permitted development rights, provided they meet certain size and design criteria. However, where homes fall within conservation areas or have particular architectural significance, planning approval may still be required.
At Herko, we help navigate this process with clarity and confidence. From initial design concepts to liaising with local authorities where necessary, we ensure each project is fully compliant and carefully considered — while keeping your vision at the heart of the process.
Designed with Lifestyle in Mind
Great design isn’t just about space — it’s about how that space supports your everyday life. Our side extensions are crafted to improve flow, increase natural light, and connect key areas of the home in a more harmonious way.
Whether it’s a contemporary kitchen with skylights, a quiet reading nook, or a sleek utility space tucked behind bespoke cabinetry, Herko designs with both beauty and practicality in mind. Every detail — from layout to finishes — is managed with care to ensure a seamless result.
Small Footprint, Big Impact
A side extension in Southwark may be subtle in scale, but the impact on daily living can be transformative. It’s an opportunity to future-proof your home, elevate its value, and enhance the way you use every square metre.
With Herko, your project is in expert hands — from early-stage planning to the final coat of paint. We bring a balance of technical know-how, design sensitivity, and clear communication to every project, no matter the size.
Considering a side extension in Southwark?
Contact Herko today to find out how we can help you reimagine your home with smart, elegant design that makes space where it matters most.
