Video Interview with Aline, Talking to the Client
RDA Architects Director Richard Dudzicki, talks to his client Aline about working on Modernist EnerPHit

Our client, Aline, wanted her 1960's modernist house designed by Michael Blackstock to be restored, combining the original design aesthetic with a contemporary approach. The three storey property was designed in the ‘upside-down’ style common in the 1960s, with an open plan living space and terrace sitting above the bedrooms on the first floor and ground floor parking and utility area. To achieve Passivhaus standard we have introduced highly efficient insulation; new windows and doors have also been fitted to improve airtightness – reducing heat loss and therefore providing a high level of comfort throughout the house. Implementing Passivhaus standard provides a reduction in heating bills and is a pioneering retrofit approach in bringing the housing sector towards zero carbon emissions by 2050.


This is not a straightforward house or design. The house was in need of extensive repair works (including building fabric itself, addressing air leakages and damp), Instead of demolishing a historic award winning project, we breathed new life into the building using modern technology to extend its life span by another 100 years. This project with its EnerPHit value, corresponds to UN Sustainable development goals number 7 (Affordable and Clean energy),11 (Sustainable Cities and Communities) and 13 (Climate Action). Within this framework, it is an encouraging example to its neighborhood and within the larger context of UK, for a more sustainable and energy efficient buildings.


By refurbishing an existing 60's property with a sustainable approach and designing to EnerPHit standards, the energy bill for this house is expected to be as low as £177.00 annually, thanks to its design.

Photo voltaic panels embedded within the roof by RDA Architects

This building is planned according to EnerPHit standards which is a Passivhaus standard intended for refurbishment projects. Using high performance products to achieve this standard included: triple glazed windows & doors and installing them with minimum thermal bridge values. Applying interior thermal insulation. Use of airtight materials. Use of Air Source Heat Pump as a renewable heating source. Use of PV panels and high-performance Tesla Batteries for storage. Use of Mixergy water cylinder for an efficient Domestic Hot Water System. Putting in a MVHR and new services that benefit the existing building and provide a high- quality air and ventilation.

Tesla Power Wall and Mitsubishi Air source heat pump used on Modernist EnerPHit by RDA Architects

To see more photos of the amazing work done on Aline's home, visit the page below:

More Photos
quotesArtboard 1 copy 2

‘The top room is my favourite, the mono pitched roof, all the high terraced glazing, the lovely balcony it joins on to. It’s the openness of it all and the original features like the quarry tiles and the wooden roof I love so much. I had my engagement party up here which was a highlight and look forward to hosting more in the future as the triple glazed windows mean no more noise complaints for my Neighbours.’


- Aline

quotesArtboard 1 copy 2

‘The top room is my favourite, the mono pitched roof, all the high terraced glazing, the lovely balcony it joins on to. It’s the openness of it all and the original features like the quarry tiles and the wooden roof I love so much. I had my engagement party up here which was a highlight and look forward to hosting more in the future as the triple glazed windows mean no more noise complaints for my Neighbours.’


- Aline

Recent Blogs

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.
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.
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.
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.
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.
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.
By Richard Dudzicki February 13, 2026
We’re excited to share our refined Project Planning Pack, designed to support anyone preparing to embark on a design or building project. Planning ahead is one of the most important steps in ensuring a successful project . This clear, easy-to-follow resource helps you reduce risk , improve your design outcomes, and gain a better understanding of costs and the architect’s role in the process. It also introduces core design principles and provides tools to assess where you’re at before you begin, giving you confidence in every decision. Whether you’re a first-time homeowner, an experienced developer, or simply exploring ideas for a renovation or new build, this pack is an essential companion for your project journey. What’s included: • A structured framework to plan and organise your project • Guidance on core design principles • Insights into costs and the architect’s role • Tools to assess your project readiness We’ve refined this pack to be practical, user-friendly, and aligned with real-world architectural practice. Our goal is to give you clarity, reduce uncertainty, and make the design process as smooth as possible . Access the full Project Planning Pack here: