Architecture studio Archer + Braun has transformed Limestone House, a listed home in Edinburgh, by adding a Portland stone-clad rear extension. This project fuses modernist elements with the building’s historic sandstone fabric, creating a seamless blend of old and new.
Limestone House, a five-bedroom property in Edinburgh, underwent a significant renovation led by architecture studio Archer + Braun. Originally unlisted, the property gained listed status during the design process, prompting the architects to adapt their approach. The resulting design integrates a modern limestone-clad extension that complements the historic structure’s sandstone material.
The single-storey rear extension houses a kitchen, dining, and living area, offering expansive glazing and uninterrupted views of the garden. “The main concept was to propose a contemporary modernist extension inspired by the tones and materiality of the period property while providing unique spaces and views,” explained studio co-founder Stuart Archer. Portland stone was chosen for its compatibility with the original sandstone and its durability in Scotland’s wet climate.
Separated from the original home by a slim green corridor, the extension retains views of the building’s historic walls through carefully positioned openings. At the front, a two-storey structure replaces the garage and includes a guest suite. Both the extension and new structure feature metal roofing, complementing the natural aesthetic.
The interior of the extension embraces minimalism, with bright open-plan spaces emphasizing views of the surrounding garden. Wooden steps address the sloping topography, creating a smooth transition between the house and outdoor space. Inside, storage, a bathroom, and access to a courtyard are positioned behind the main living area, with stairs connecting to the original home through a study and library.
Key updates to the original house include turning the old kitchen into a snug and preserving decorative features such as cornices and panelling. These historical elements were refurbished and redecorated in neutral tones, enhancing their charm.