Are you planning to extend your home with a house extension in Clapham? Whether you are considering a rear extension, side return extension, single-storey, or double-storey extension, our experienced team delivers bespoke solutions designed to enhance space, functionality, and property value.

We manage the entire house extension process from initial consultation through to completion, including planning permission, building regulations approval, structural works, and full project management. Our skilled house extension builders in Clapham ensure a smooth, well-coordinated, and stress-free experience, helping you create an extension that complements your home and suits your lifestyle.

Why Choose Redline for House Extensions in Clapham

Choosing a reliable house extension specialist is essential to achieving a successful result. Homeowners across Clapham choose Redline Building Services for our experience, transparency, and attention to detail.

Bespoke House Extensions: Designed around your property and lifestyle
Complete Project Management: With a dedicated point of contact
Expert Planning & Design: Building regulations, and party wall matters
High-Quality Construction: Using durable, suitable materials
Competitively Priced: Transparent and competitive pricing with no hidden costs
Extensive Experience: Extensive experience in residential extensions and home renovations

From design to construction, we handle every stage of your house extension project with professionalism and care.

Types of House Extensions We Offer

Many Clapham homeowners face limited internal space, particularly in period terraces and family homes. Extending your property is often a more practical and cost-effective alternative to moving, allowing you to adapt your home to changing needs.

Rear House Extension

A rear house extension is ideal for adding space to the back of your property. This type of extension is commonly used for kitchen renovation and dining areas, additional living rooms, or family spaces filled with natural light. Our rear extensions in Clapham are designed to integrate seamlessly with the existing structure.

Side Return Extensions

Side return extensions are especially popular with terraced and semi-detached properties in Clapham. By making use of unused side space, this type of extension increases internal width and improves overall layout. Side return extensions work particularly well for kitchens and ground-floor living areas.

Double-Storey Extensions

A double-storey extension offers the greatest opportunity to increase living space. This type of extension can add bedrooms, bathrooms, and additional living areas while significantly enhancing property value. Our team designs and builds double-storey house extensions in Clapham that are structurally sound, well-balanced, and fully compliant with planning regulations.

Single-Storey Extensions

A single-storey extension is a versatile solution for expanding your home. Whether you require a larger kitchen, a home office, or a new living area, single-storey extensions provide flexibility and can be designed to suit both modern and traditional homes.

Understanding House Extension Costs & Planning

The cost of a house extension in Clapham varies depending on factors such as size, design complexity, materials, and planning requirements. We offer a free consultation to assess your property, discuss your goals, and provide clear guidance on budgets, timelines, and feasibility.

Our team manages permitted development rules, local council planning policies, and building control requirements, ensuring your house extension project progresses smoothly and compliantly. From early-stage advice to construction scheduling, we provide clarity and peace of mind throughout.

Enhance Your Home with a Seamless House Extension Project

Whether you are extending your home to accommodate a growing family, improve everyday living, or add long-term value, our house extension specialists deliver high-quality results across Clapham. We work on both contemporary extensions and traditional renovations, ensuring each project is completed efficiently and with minimal disruption.

Our aim is to create extensions that feel like a natural part of your home, enhancing both comfort and usability.

Other Services in Clapham

Alongside house extensions, we provide a full range of building services across Clapham, all delivered to the same high standards.

Kitchen Renovation Clapham

Design & Build Clapham

Loft Conversion Clapham

House Extension PROJECTS

Get Started on Your House Extension Project in Clapham

As an experienced design and build company, we make the process of extending your home clear, efficient, and enjoyable. If you are planning a house extension in Clapham, contact us today for a free consultation and expert advice.

Let’s bring your vision for a beautifully designed, professionally built house extension to life.

Request a free consultation

For all enquiries, please contact us by email in the first instance info@redlinebuilding.co.uk

"The Redline team was exactly what we were looking for, a reliable building company that are great to work with. They are very skilled tradesmen and always courteous. Some complex design changes and unusual finishes all taken within their stride. Highly recommended!"

THEO BULMER

“High-end finish, great communication, very flexible with an eye for detail, reliable and works to schedule. Always our first port of call for studio fit out.”

PETER JOHNSON - ONE TEN PRODUCTIOns

“We are impressed with Redline’s commitment to getting the job done on time, in budget and to the highest professional standards - often in the face of unforeseeable complications and difficult working environments.”

MD - WARREN LAND & PROPERTY

“The key to our successful relationship was Ben's unwavering attention to detail and daily presence on site. His team were able to tackle a complicated project within the constraints of a grade II listed building.”

MARC B - PENTHOUSE APARTMENT, LONDON

Transform Your Home with Bespoke House Extensions in Clapham