September 18, 2024

Lansdowne Road Extension Features Sedum Green Roof

Lansdowne Road is a house extension in the City of London, UK, designed by Mulroy Architects in 2020. The project increased the floor space by 25 percent in this family home. The design features a courtyard between a new rectangular extension and an original Victorian bay window. A frameless curved window creates more space, wrapping around the bay and focusing the new dining area. The first-floor addition includes a study and bathroom.

A modern, minimalist home extension with large glass windows, brick exterior, and lush greenery.

Architectural Design at Lansdowne Road

The project is located in London’s Muswell Hill and involved the ground and first-floor extension of a Victorian house, increasing its floor space by 25 percent.

Sleek, modern dining area with glass walls overlooking lush garden, showcasing sophisticated interior design.

Architects pursued the goal of maximising available space without disturbing the existing structures.

The concept aimed to create a living area with a courtyard between the new rectangular addition and the original bay window, which was integral to the architectural quality of the living room.

Modern kitchen with arched windows, sleek cabinets, and an indoor courtyard.

Unique Features of the New Annex

Instead of a conventional solution, the project was inspired by architectural firm SANAA and turned core structural limits into a strong feature.

The design incorporated a frameless curved window that creates more space and wraps around the bay, becoming the focal point of the new dining area.

Modern open-plan kitchen with teal cabinets, glass walls, and garden view. Sleek, minimalist design.

The new area’s open layout is meant to expand into the original space and improve outdoor views.

The adjoined spaces of the old and new ensure that the architectural quality of the existing rear living room with the bay is maintained, with its narrow kitchen.

Modern dining room with concrete walls, wooden table, and glass doors leading to a garden.

The First-Floor Extension

The architects added a new first-floor extension containing a study within a bathroom that could also be used as an additional bedroom.

The corner window in the room provides pleasant views over the garden and stretches to London’s Alexandra Palace.

Elegant, sun-filled room with arched windows, white walls, and a plush yellow sofa.

The flat roof above the new addition is finished with sedum, adding a lush outlook from above, while there is a cohesive aesthetic across the rear exterior providing a pleasant view from first-floor windows and neighbouring properties.