Home Extensions Mortlake
Redesigning Mortlake Homes for Modern Living
Mortlake is one of South West London’s most characterful riverside neighbourhoods, with a mix of Victorian terraces, Edwardian villas, and period cottages. Its charm is undeniable, but many of its homes were designed for a different lifestyle – smaller kitchens, closed-off rooms, and limited connections to outdoor spaces.
At Reltic Extend, we specialise in bespoke home extensions in Mortlake that preserve the character of local homes while introducing the light, flow, and functionality modern living demands. From elegant rear extensions that open up to gardens, to side return builds that transform narrow kitchens, or wraparound extensions that create versatile open-plan layouts, we design and deliver extensions tailored to both your property and your lifestyle.

Ready to Start Your Mortlake Extension?
If you’re considering a home extension in Mortlake, our friendly team is here to help. From first sketches to final completion, we’ll guide you through the process with clarity, care, and creativity.
Why Mortlake Homeowners Choose Reltic Extend
Extending your home in Mortlake means balancing period charm with practical, modern improvements. Local conservation zones and Richmond Council’s planning requirements add another layer of complexity. Here’s why homeowners trust us:
Understanding Local Homes
From period cottages near the river to large Edwardian houses, Mortlake homes all come with their quirks. We design extensions that complement existing architecture while improving daily life with bright, open layouts, energy-efficient glazing, and flexible family spaces.
Expertise with Planning
Richmond Council has strict policies on extensions, especially in conservation areas. Our planning team manages drawings, applications, and design statements, ensuring your project stands the best chance of approval.
Lifestyle-Led Approach
We design spaces around the way you live. For some households, that means a kitchen extension as the heart of the home. For others, it’s a larger living area for entertaining or a double storey extension to create additional bedrooms. Whatever your vision, we make it work for you.
Transparent Pricing
Budget confidence matters. Our Cost Calculator gives you a clear project estimate upfront, so you can plan with certainty and avoid surprises later.
Peace of Mind with Digital Previews
With our Design & Build 2.0 process, you’ll preview your extension in 3D before work begins, giving you the reassurance that the final build will look and feel exactly as you imagined.
Types of House Extensions in Mortlake
Every homeowner has different goals. Some want open-plan kitchens for family life, others need new bedrooms for growing families, and many simply want more light and space. That’s why we provide a complete range of extensions – kitchen, rear, side return, wraparound, and double storey builds – each carefully tailored to Mortlake’s property styles and your lifestyle needs.
01.Kitchen Extensions
Gain up to 40% more space with a bright, practical kitchen designed for cooking, dining, and family life.
02.Rear Extensions
Open the back of your home for a light-filled, versatile living area tailored to your family’s lifestyle needs.
03.Side Extensions
Increase width, light, and value while creating extra space for dining, relaxing, or work, all seamlessly integrated.
04.Wraparound Extensions
Maximise unused space on two sides for a stunning open-plan layout with great flow and natural light.
05.Double Storey Extensions
Double your space with extra rooms upstairs and down, boosting comfort, value, and modern living.
06.Planning
We manage all permissions, drawings, and approvals, saving you time, stress, and costly delays in your project.
The Mortlake Advantage – A Lifestyle and Investment Opportunity
Mortlake is prized for its riverside location, village feel, and excellent transport links. Extending here not only improves how you live but also increases your property’s long-term value.
- Extensions in Mortlake can increase property value by 20–30%.
- Buyers and renters value modern kitchens, open layouts, and flexible family spaces.
- Extending avoids the high costs of moving while letting you stay in a neighbourhood you love.
With Reltic Extend, you gain an extension that blends traditional charm with modern practicality, ensuring your home is fit for the future.

Experts in bespoke rear, side, wraparound, kitchen, and double-storey extensions across London.
Our Services
Contact Us
- 4th Floor, Silverstream House, 45 Fitzroy St, London W1T 6EB
- 020 3576 2851
- office@relticextend.co.uk



