RDA Architects & Interior Designers

RDA is a leading-edge London Architecture & Interior Design firm specializing in award-winning, beautifully modern homes that are healthier for you, your family, and the environment.

Passivhaus Certified Since 2010 

25+ Years Experience, Design First, Science Next Approach

RDA Architects & Interior Designers

Creating beautifully responsible London homes

RDA is a leading-edge London Architecture & Interior Design firm specializing in award-winning, beautifully modern passive homes that are healthier for you, your family, and the environment.

Passivhaus Certified Since 2010 | 25+ Years Experience | Design First, Science Next Approach

25+

Years of Experience

250+

Completed Projects

10

Prestigious Awards

Passivhaus Certified Since

2010

The Home You’ve Always Wanted, and Much More

Designing, renovating, or extending your home is a daunting process. Whether you’re adapting your home to your family’s changing needs, modernising your home to match your style, or improving your home to be more efficient and healthy, you need an experienced team to help you achieve your vision. 


RDA has been at the forefront of home design in the UK for more than 25 years. Our expertise has helped us create a proven process that delivers great results and gets faster approvals from local councils. 


It has also allowed us to build a great network of trusted suppliers and contractors, who provide our clients with exclusive access to the latest trendsetting materials and techniques. All this means more value and satisfaction for you.


Get the home you’ve always wanted and much more at RDA Architects.

Wooden kitchen with countertop, cabinets, and appliances; view of a window.

The home you have always wanted,

and much more.

Designing, renovating, or extending your home is a daunting process. Whether you are adapting your home to your family’s changing needs, modernising your home to match your style, or improving your home to be more efficient and healthy, you need an experienced team to help you achieve your vision. 


RDA has been at the forefront of home design in the UK for more than 25 years. Our expertise has helped us create a proven process that delivers great results and gets faster approvals from local councils. 


It has also allowed us to build a great network of trusted suppliers and contractors, who provide our clients with exclusive access to the latest trendsetting materials and techniques.


Get the home you have always wanted and much more at RDA Architects.

Award logo:

Design First,

Science Next Architecture

At RDA, we know you want a home that not only reflects your lifestyle, tastes, and vision but also aligns with your desire to live a cleaner, happier, and healthier way. 


Exquisite design solutions are always our priority at RDA. And science comes a close second, putting us at the forefront of home design advancements, every step of the way. 


As a leading certified Passivhaus architecture and interior design firm in the UK, our team is highly skilled and experienced in creating magazine-worthy homes that enhance your daily life while benefiting the environment with innovative, science-based solutions. 


We help you make responsible choices that benefit you, and benefit us all.

Teal square with white text

Eco-friendly Architecture

For more than 25 years, we’ve been designing breath taking eco-friendly homes that offer a genuine solution to lowering your carbon footprint.

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Conscious Interior Design

Our award-winning interior designers have the skills, passion, and eco-conscious expertise to evoke your personality and lifestyle in every corner of your home.

Purple square with white text for

Passivhaus Consultancy

As sustainable home consultants, we offer our expertise to builders, architects, and individuals who want to build homes to the highest Passivhaus standard.

Book a FREE Consultation

Ask the Expert

Thinking of embarking on a building project and not sure how or where to start? You've come to the right place.


Our “Ask the Expert” consultation is the answer!


Click the link below to book a consultation with Richard Dudzicki, RDA's director, founder, and Passivhaus Certified Architect.


With more than 25 years of architectural experience and a deep portfolio of more than 200 projects in Greater London, and the UK, Richard knows his way around a job site, and can give you the clarity you need about your project.

Book Your Consultation

Project Planning Pack

What will your project cost?

How do we navigate each stage of your project? Learn essential insights from our award-winning team in this must-have Project Planning Pack.


Click the link below to download the pack. This pack you will inform you about our process, the aspects you should consider and what to expect further down the line.


If you are interested in RDA's services and considered what it is you are looking for, you can reach out to us for a ''Needs and Options'' meeting with our team where we can talk more in depth and answer any questions you might have.

Download Your Pack

Ask the Expert

Thinking of embarking on a building project and not sure how or where to start? You've come to the right place. Our “Ask the Expert” consultation is the answer!


Click the link below to book a consultation with Richard Dudzicki, RDA's Director, Lead Architect, and Passivhaus Certified Specialist.


With more than 25 years of architectural experience and a deep portfolio of more than 200 projects in Dulwich, Greater London, and the UK, Richard knows his way around a job site, and can give you the clarity you need about your project.

Book Your Consultation

Project Planning Pack

What will your project cost?

How do we navigate each stage of your project? Learn essential insights from our award-winning team in this must-have Project Planning Pack.


Click the link below to download the pack. This pack you will inform you about our process, the aspects you should consider and what to expect further down the line.


If you are interested in RDA's services and considered what it is you are looking for, you can reach out to us for a ''Needs and Options'' meeting with our team where we can talk more in depth and answer any questions you might have.

Download Pack

Featured Projects

Beige-colored building with a domed roof and a small balcony. Connected to a modern, glass-walled structure.
Modern white house with gray door, blue car parked in driveway, tree in front.
Backyard of a two-story brick house with an open-plan kitchen and dining area. Features a lawn, trees, and stone walls.
Backyard of a house with a modern glass extension, green lawn, and yellow brick building.
Modern home with a glass front extension and skylights on a cloudy day.
White, domed-roof building with circular window, next to a modern structure under a blue sky.
Dining room with glass table, woven chairs, black-framed windows overlooking a garden.
Backyard of a house with a modern glass extension, green lawn, and yellow brick building.
Modern interior with light wood bench, gray blanket, and geometric built-in storage. Gray walls and a brass light fixture.
Rear view of a renovated brick house with a modern gray extension. Large windows, skylights, and a metal roof.
See More Projects
Five black stars.

“From start to finish, the service provided by RDA architects was exemplary."

Libby, Dulwich

Five black stars in a row, indicating a high rating or review.

“Whether you’re extending, renovating or in my case building a new build Passive House you will be bowled over by the flair, creativity and attention that Richard, RDAs owner applies to your project."

Oliver, Chiswick

“Richard is passionate about architecture and design and had many good ideas in response to our brief – he engagingly delivered what we wanted." 

Julian, Dulwich

Richard Dudzicki,

Director

RIBA ARB
BA(Hons), DipArch(Dist)

Certified PassivHaus Architect

Read more
Five black stars.

“From start to finish, the service provided by RDA architects was exemplary."

Libby, Dulwich

Five black stars.

“Whether you’re extending, renovating or in my case building a new build Passive House you will be bowled over by the flair, creativity and attention that Richard, RDAs owner applies to your project."

Oliver, Chiswick

Five black stars in a row, likely a rating or feedback indicator.

“Richard is passionate about architecture and design and had many good ideas in response to our brief – he engagingly delivered what we wanted." 

Julian, Dulwich

Featured on

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Meet Our Team

Let our dream team help you design your dream home!


Logos: RIBA Chartered Practice, ARB, ISO 9001 and 14001 certification, and a

Award-winning home design

Logo for British Homes Awards: Blue house icon, gray text on teal background,
Logo for Passivhaus Trust Awards on a teal background. The logo features a house outline over the letter
The Daily Telegraph Homebuilding & Renovating Awards logo with black text on a white and black background.
Build It Awards logo with gold and black text and building silhouettes.

Recent Blogs

NLA Coffee conversation: What are the opportunities for housing on constrained sites?

By Richard Dudzicki • March 10, 2026
On 25 March, Richard will be speaking at NLA’s Coffee Conversation about how London’s most constrained and overlooked sites can play a role in addressing both the housing crisis and the climate emergency. Across the city, small and fragmented plots are often dismissed as too difficult to develop. Backland sites, former garages and leftover spaces within established neighbourhoods are frequently overlooked by conventional development models. Yet collectively they represent a significant and largely untapped opportunity.

Passivhaus Trust - The Old Timberyard: Deep Retrofit, Honest Lessons, Lasting Performance

By Richard Dudzicki • March 3, 2026
There is a particular responsibility that comes with working on an existing building. The Old Timberyard , a former Victorian workshop, offered the opportunity to demonstrate how careful retrofit can honour heritage whilst delivering genuine long-term performance. Behind its retained brickwork and historic fabric sits a carefully executed EnerPHit upgrade. This was not about surface improvements, but a rigorous, fabric-first transformation, reworking a cold, underperforming structure into a comfortable, resilient and low-energy building fit for contemporary use.

Technical Briefing: Passive House Retrofit and Reuse Webinar

By Richard Dudzicki • March 3, 2026
Three weeks ago, Heather Faulding and I had the pleasure of presenting at the NLA’s technical briefing on Retrofit and Reuse a CPD-certified webinar on low-energy & high-performance buildings. It was a fantastic session spotlighting some of the most innovative retrofit work. Heather shared her incredible project for Daily Paper in New York: a powerful example of creative reuse, transforming a crumbling structure using over 7,500 soda cans crafted by local communities. The shimmering façade reflected not only light but the heritage of African beadwork a story of culture and circularity woven into architecture.
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