The Outcome
The extension has been constructed using cavity blockwork, with an external granite cladding chosen to reflect the architectural character and aesthetic of a traditional county farm conversion. This design approach was carefully considered to ensure that the development remains sympathetic to the rural and historical context of the site .
As part of the works, an additional bedroom has been introduced at the ground level, positioned beneath a vaulted ceiling to create a sense of openness and volume. A roof light has been installed directly above, allowing ample natural daylight to enter the room, thereby improving the overall quality of the internal space.
As part of the works, an additional bedroom has been introduced at the ground level, positioned beneath a vaulted ceiling to create a sense of openness and volume. A roof light has been installed directly above, allowing ample natural daylight to enter the room, thereby improving the overall quality of the internal space.
How we did it
To ensure minimal disruption to the existing structure, the foundations for the extension were designed as a shallow raft system. This approach avoided the need for underpinning the existing granite walls, preserving the integrity of the original building fabric.
At the attic level, the first floor was constructed using timber joists carefully designed to bear onto the existing external walls. Above this, the new roof and attic storage space were built using traditional cut roof construction, allowing for greater flexibility in shaping the vaulted ceilings and aligning with the character of the original cottage.
The project also included the design and implementation of an effective rainwater disposal system as an integral part of the overall site strategy. In accordance with best practices outlined in SuDS (Sustainable Drainage Systems) guidance, the preferred approach was to manage surface water as close to its source as possible, promoting infiltration and reducing the risk of surface water runoff and downstream flooding. After assessing the site conditions and ground permeability, it was determined that the existing ground conditions were suitable for infiltration. As a result, we designed a soakaway of appropriate size entirely within the site boundary. This solution ensures compliance with regulatory requirements while supporting sustainable water management and minimizing the impact on the surrounding drainage network.
At the attic level, the first floor was constructed using timber joists carefully designed to bear onto the existing external walls. Above this, the new roof and attic storage space were built using traditional cut roof construction, allowing for greater flexibility in shaping the vaulted ceilings and aligning with the character of the original cottage.
The project also included the design and implementation of an effective rainwater disposal system as an integral part of the overall site strategy. In accordance with best practices outlined in SuDS (Sustainable Drainage Systems) guidance, the preferred approach was to manage surface water as close to its source as possible, promoting infiltration and reducing the risk of surface water runoff and downstream flooding. After assessing the site conditions and ground permeability, it was determined that the existing ground conditions were suitable for infiltration. As a result, we designed a soakaway of appropriate size entirely within the site boundary. This solution ensures compliance with regulatory requirements while supporting sustainable water management and minimizing the impact on the surrounding drainage network.
The Challenge
One of the more complex aspects of the project was the seamless integration of the new roof structure with the existing roofline, particularly where the two forms met at valley junctions. To resolve this challenge without compromising the building’s heritage value, a bespoke steel frame was discreetly introduced and concealed within the existing roof void above the bedroom in the historic portion of the cottage. This hidden structural intervention provided the necessary support while maintaining the visual integrity and traditional appearance of the interior and exterior architecture.
