Mews House Deep Retrofit
Deep energy refurbishment of an existing end-terrace mews in London dating from 1878. The terrace house, located within a conservation area, was sensitively restored using Diasen cork lime thermal plaster, and surpassed targets for both the RIBA Climate Challenge and London Energy Transformation Initiative (LETI).
![Mews House Deep Retrofit](/images/media/projects/Mews%20retrofit/MHDR-FrontElevation-AM.jpg?q=92&fm=webp&w=1280)
![](/images/media/projects/Mews%20retrofit/MHDR-LivingRoom-AM.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/4-Enhanced-SR.jpg?q=92&fm=webp&w=600)
![](/images/media/projects/Mews%20retrofit/1-Enhanced-SR.jpg?q=92&fm=webp&w=600)
![](/images/media/projects/Mews%20retrofit/MHDR-StairHallways-AM.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/MHDR-LivingRoomKitchen-AM.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/MHDR-Kitchen-DG.jpg?q=92&fm=webp&w=600)
![](/images/media/projects/Mews%20retrofit/3-Enhanced-SR-Edit.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/MHDR-1FloorLivingRoom-AM.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/MHDR-SecondFloorStair-TG.jpg?q=92&fm=webp&w=800)
![](/images/media/projects/Mews%20retrofit/MHDR-StairDetail-TG.jpg?q=92&fm=webp&w=600)
![](/images/media/projects/Mews%20retrofit/MHDR-FrontElevation-AM.jpg?q=92&fm=webp&w=1000)
Architect
Prewett Bizley Architects
Diasen installer
Mack Plastering
Old brick wall U-value
2.1 W/m²K
New brick wall U-value
0.54 W/m²K
Operational Energy / EUI
51 kWh/m²/year
Space Heating Demand (before heat pump)
40 kWh/m²/year
Embodied carbon as built project
154 kgCO₂e/m²