Our History
Almost 30 years ago, Richard Dudzicki founded RDA to change people’s perceptions of what a home could be. Long before our Passivhaus certification in 2010, we were innovating in the eco-friendly space with sustainable home design for years. Over 200 projects later, we’re still fulfilling Richard’s mission, creating cutting-edge solutions for healthier homes.
In 2016 we moved to our current home in the leafy heart of East Dulwich. Discover the story of our office transformation from bakery to studio here.


Our Team
Our Team is made up of a dynamic mix of talented architects who subscribe to RDA's design first, science second ethos.
Experienced and driven by a passion for high-quality design and sustainability, our team work tirelessly to understand and bring your vision to life.
Why work with RDA?
We are highly regarded by our clients and our industry for delivering certified Passivhaus design, embracing modular and offsite construction, achieving planning on awkward or sensitive sites, and designing beautiful bespoke interiors, all while respecting your budget.
We will oversee your projects from beginning to end so we can be sure we achieve your unique vision. Our meticulous attention to detail ensures that every building we complete is beautiful, functional, sustainable and generates meaningful value for you.
- You'll benefit from working with one of the best regarded Passivhaus specialists in the UK.
- With more than 25 years experience and 200 successfully delivered projects, you can be assured you are in good hands.
- We've seen it all, from large commercial developments to bespoke contemporary homes and unique renovation work.
- Our strong relationships with councils and planning authorities, including unique local arrangements, such as The Dulwich Estate Scheme of Management, ensure quick approvals.
- Our exclusive network of suppliers and service providers help ensure your project is within budget and on time.
Our Expertise
Passivhaus
Since building our first certified Passivhaus in 2010, we've gone onto complete many more award-winning passive homes.

Retrofit & Renovation
A more sustainable option to improve your home, this is the kind of project we don't just encourage, but truly enjoy.

New build
We love working with a client to bring their vision to life from the ground up, within budget and on time.

Interiors
We offer an integrated interior design service, utilising our exclusive supplier network and experience to turn your house into the home you've always wanted.