Sustainable Residential Extensions in London

Sustainable Residential Extensions by Expert Architects in London

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At New Makers Bureau

We specialise in sustainable residential extensions that transform existing homes across London, with particular expertise in working on listed buildings and properties in conservation areas.

Whether you're looking to add a contemporary kitchen extension, a loft conversion in a heritage property, or a side return extension within a conservation area, our London-based architectural team guides you from concept to completion — with sustainability and sensitivity at the heart of every design.

A modern kitchen with wooden cabinets, white countertop, and a pendant light fixture hanging above. There is a backsplash with a herringbone tile pattern, and a white sink with a metal faucet. On the countertop, there are bottles, utensils, and some small items, with a wooden chair partially visible in the foreground.

Architects for Extensions in Conservation Areas & Listed Buildings

Extending a home in a London conservation area or working with a Grade II listed building comes with complex planning requirements. Our architects are experienced in:

  • Navigating heritage planning consents

  • Designing in dialogue with existing architecture

  • Working closely with local authorities across Camden, Islington, Lambeth, Hackney, and more

We’ve helped homeowners secure permissions and deliver high-performance, low-energy extensions that respect the past while embracing the future.

Make It

Sustainable Architecture That Works for You and the Planet

We believe that the most sustainable building is the one that already exists. That’s why we:

  • Use natural materials and low-carbon construction techniques

  • Prioritise retrofitting and fabric-first strategies

  • Design for thermal performance, daylight, and future adaptability

From Passivhaus-inspired rear extensions to deep green upgrades in heritage homes, we make your home work harder — beautifully and responsibly.

A bedroom corner with a bed covered in a reddish-orange quilt, a dark wooden headboard, a side table with a small plant and candles, and a hanging pendant light with a velvet bulb against a beige wall.

Our Services

  • Sustainable Rear Extensions

  • Loft Conversions in Listed Buildings

  • Kitchen & Side Return Extensions

  • Garden Rooms & Outbuildings

  • Planning Applications in Conservation Areas

  • Full Retrofit & Extension Packages

We work across North, South, East and West London, tailoring every project to the unique fabric of the home and its surrounding context.