Located in a 1950s Warner building on the Warner Estate which was built over the late 19th and early 20th century in several parts of Waltham Forest. This first floor flat was occupied by a family who needed extra space to grow into and the proposal allows for a master bedroom with ensuite shower in the roof space which has a terrace with views over Lloyd Park, home of the William Morris Gallery.

The client was keen for the new roof extension to be unique and not the generic 'loft company conversion' but one which worked with its context and would respect the period and character of the original building.

The new extension is flooded with light by the addition of full height sliding glass doors to the master bedroom as well as rooflights in the existing pitched part of the roof. The rest of the flat has natural light brought into it by a rooflight over the new staircase which is funnelled down a void placed to the side of the stairs, as well as full height slot window placed at the top landing which also allows views out over the park.

The flat is given a feeling of spaciousness through the use of clean lines and simple furnishings and a palette of light coloured materials such as white painted plaster walls and white tinted timber flooring. This works well with the modernist mid century aesthetic of the rest of the flat and it's 1950s origins.

The new internal staircase to the extension is placed over the existing one with the balustrade modified so that can be extended to the next floor giving a sense of continuity to the stairwell.

Externally, Corten weathering steel was used to clad the new extension, this was chosen by the Architects for its ability to patinate and weather over time allowing it to blend in with the existing red concrete roof tiles of the main roof and the red facing brickwork. The faceted cladding is installed with invisible fixings and has a chamfered overhang and is inset to provide space for the covered terrace.