Limestone House Features Mid-Century Californian Design in Edinburgh

Archer + Braun, a London-based architectural practice, recently transformed a ground-floor flat in Edinburgh into a stunning, modern 5-bedroom family residence. Set in a conservation area within the Edinburgh, United Kingdom, the project exemplifies adept handling of design challenges.

The architects’ sensitivity to local conservation regulations, coupled with their experience on other listed projects in Edinburgh, was pivotal in achieving the homeowners’ vision of modern, airy living within historical constraints.

A modern glass extension contrasts with the historic masonry building, creating a harmonious blend.

Collaboration And Remote Project Management

The architects’ sensitivity to local conservation regulations, coupled with their experience on other listed projects in Edinburgh, played a pivotal role in achieving planning approval and meeting the family’s design brief. The homeowners, a Scottish-English couple with two university-age children, were drawn to Scotland by family ties and their children’s educational plans. The couple relied on Archer + Braun’s expertise in navigating planning regulations and creating thoughtful, aesthetic architecture.
Spacious, modern kitchen with sleek wooden cabinetry, ample countertop, and track lighting.

Grade-listing Challenges In The Design Process

With the property’s sudden transition to grade-listed status after purchase, the design team had to work within strict preservation constraints, preserving original features and crafting an extension that would complement rather than overshadow the historical structure.
A modern, open-concept kitchen and dining area with wooden cabinetry, large windows, and neutral furnishings.

A Modern Extension While Preserving Historical Integrity

The existing property posed several design challenges, particularly due to its fragmented layout. The homeowners envisioned a spacious, modern extension with open-plan living areas that seamlessly connected to the garden. However, the current configuration made a straightforward extension difficult. There was no direct way to link the main house with a rear addition, and the property’s historic designation restricted alterations to its original structure.

Moreover, the sloping site at the rear required Archer + Braun to address the difference in ground levels creatively. They introduced a series of steps and terraces, partially cantilevering the new structure to create a sensation of hovering above the landscape below.

Elegant living room with ornate moldings, fireplace, and a chandelier illuminating the space.
Archer + Braun’s solution demonstrated their sensitivity to both the property’s historical character and the clients’ modern vision. Drawing on mid-century Californian aesthetics (in particular John Entenza’s Case Study House program), they designed an extension with floor-to-ceiling glass that invites the surrounding landscape into the space. The glass-walled addition wraps around the rear of the property, offering sweeping garden views and fostering a seamless indoor-outdoor connection.
A modern, minimalist room with built-in shelving, hardwood floors, and simple furnishings.

Creating Visual Transition Between Old And New Spaces

To honour the property’s historical character, Archer + Braun designed a narrow courtyard to separate the main house from the extension. This “green corridor” not only minimised the extension’s physical impact on the original structure but also provided a gentle visual transition between old and new. With its dual-aspect design, one can view both the house’s original walls, through the kitchen courtyard windows, as well as the garden. By making the extension visually distinct and physically detached, Archer + Braun preserved the historical integrity of the main structure, carefully aligning with heritage listing regulations.
A striking geometric pattern in black and gold enhances the modern bathroom design.

Bridging The Old And New Within The Interior Spaces

The project included the internal reconfiguration of the main house. The architects transformed the old kitchen and former servant’s quarters into a cosy snug, and upgraded the existing garage into a two-storey structure with a guest bedroom above. A study and library space bridged the gap between the old and new areas, while the corridor connecting the main entrance with the extension provided a unique architectural transition, punctuated by a gradual descent into the new open-plan kitchen and dining area.

Archer + Braun also reconfigured the master suite, integrating an en-suite bathroom and adding additional bathrooms throughout the property. By focusing on secondary areas, they made design improvements without altering the grand, historical rooms. This thoughtful reconfiguration not only fulfilled the practical needs of the homeowners but also celebrated the original architecture.

Serene bedroom with elegant architectural details, soft lighting, and neutral color palette.

Design Solutions Through Natural Materials 

Archer + Braun’s design incorporated natural materials and a mid-century aesthetic, which complemented the surrounding landscape. A departure from the prevalent buff sandstone used in many Edinburgh extensions, the architects chose Portland stone, which featured fossil markings that contributed to a weathered, textured look. The extension’s warm, silver-toned cladding and subtle metal roofing harmonised with the minimalist yet natural aesthetic of the interiors, creating continuity across the old and new spaces without overshadowing the original structure’s character.
Elegant bedroom with intricate wainscoting, herringbone wood floors, and stylish lighting.

A Cohesive, Elegant Family Home

The Edinburgh project stands as a testament to Archer + Braun’s expertise in adaptive reuse, sensitive design, and managing complex, multi-stakeholder projects across continents. Through creative problem-solving and respect for Scotland’s architectural heritage, they turned a challenging grade-listed property into a cohesive, elegant family home that offers modern comfort within a historic setting.
Cozy bedroom with sloped ceiling, moody blue walls, and modern lighting fixtures.
Contemporary bathroom with sleek black and white design, recessed lighting, and geometric tile patterns.
Spacious bathroom with marble walls, vessel sink, and large window allowing natural light.
A modern glass-walled house extension with a wooden deck and lush garden landscaping.
Striking contemporary addition to a stone building, with floor-to-ceiling windows and a landscaped garden.

Photography by Will Scott
Visit Archer + Braun Architecture

- by Matt Watts

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