London Residential Architects – Renovations, Extensions & New Builds | Polysmiths

Polysmiths are award-winning residential architects in London, specialising in renovations, extensions, and new build homes with crafted interiors and planning expertise.

10th Nov 2024

Transforming London Homes with Innovative Architectural Design – Polysmiths

Polysmiths is an award-winning London-based architecture and interior design studio specialising in residential renovations, extensions, and new build homes. We work closely with homeowners and developers to reimagine space, unlock potential, and craft homes with long-term value.

Whether you're planning a full house refurbishment, designing a bespoke home extension, or building a new property from the ground up, our studio offers concept-to-completion services — including feasibility studies, planning submissions, interior detailing, and on-site delivery.

We’re experienced in navigating listed building constraints, working within conservation areas, and developing sustainable, high-performance homes tailored to London living.

Our Services

Home Renovations & Refurbishments: Breathing new life into existing structures while preserving their character.

Custom Extensions: Creating additional space that blends seamlessly with your home's original design.

New Build Homes: Designing and constructing homes from the ground up, tailored to your vision.

Interior Architecture & Joinery Design: Crafting interiors that reflect your personal style and functional needs.

Planning Permission & Listed Building Consent: Navigating the complexities of London's planning regulations with ease.

Sustainable & Passive Design Strategies: Implementing eco-friendly solutions for energy-efficient living.


Looking for high-end residential architects who understand how Londoners live? Talk to us about your project.


More pictures of Arch House.


Case study: Our recently completed home in East London where the Client can be on holiday, every day

In East London's Wanstead, we transformed a typical terraced house into a Mediterranean-inspired sanctuary. By incorporating structural arches and natural materials like lime plaster and walnut joinery, we created a harmonious blend of form and function. The addition of a semi-circular skylight, affectionately known as the 'oculus,' floods the space with natural light, enhancing the home's warmth and openness.

Arches as cost effective, low-waste renovation solution

Collaborating closely with the structural engineer, structural blockwork arches were used to support the existing loadbearing walls, thereby connecting the rooms at the rear of the house, creating a more flexible, open floor plan. It is a cost effective solution that reduces demolition, construction waste, while eliminating the use of costly ground beams.

Why Choose Polysmiths?

Expertise in London's Architectural Landscape: From conservation areas to listed buildings, we understand the nuances of London's diverse neighborhoods.

Client-Centric Approach: We collaborate closely with you to ensure your vision is realized at every stage.

Sustainable Practices: Our designs prioritize environmental responsibility without compromising on aesthetics.

Comprehensive Project Management: From initial concept to final build, we manage every detail with precision.


What We Offer

  • Residential Renovation & Refurbishment

  • Bespoke House Extensions

  • New Build Homes in London

  • Interior Architecture & Joinery Design

  • Planning Permission & Listed Building Consent

  • Sustainable & Passive Design Strategies


Planning to renovate or build in London? Let Polysmiths help design a home that’s beautiful, functional, and built for life.