Conservation Area Extension - On Site in Brockley

Planning consent was gained in 2022 for this minimal, 50 sqm timber frame extension to a spectacular Victorian detached house in the Brockley Conservation Area on one of the area’s most sought after roads.

The scheme is currently emerging on site. Successfully delivering a minimal design like this requires complete coordination and the resolving of many details. The execution is testement to the idea that simple can be harder than the complex.

Success at planning for this large extension involved lengthy discussion with planning officers and consultation with the Brockley Society. A thorough understanding of planning policy dictated the geometry, footprint and limiting heights so as to avoid impacting the neighbour’s amenity whilst balancing these constraints with the need to provide an extension of a suitable scale and presence appropriate to the host property.

The extension will host a central kitchen with tall units anchored to a central core wall and a spectacular island unit.

The kitchen is flanked by a exposed plywood ceilings which are being crafted to host rooflights and LED lighting and to complement the douglas fir flooring which flows into the extension from the rest of the house.

Plywood ceiling Dinesen Floors Sliding Doors
Minimalist, timber framed kitchen extension. Planning secured for a large timber frames extension and raised deck in the Brockley Conservation Area in South East London.
South London house extension, design, planning, project management, construction
Minimal single storey timber frame, timber clad extension to a detached house in the Brockley Conservation Area. Glazed sliding doors, exposed plywood roof structure and rooflights.
A timber Warren truss and a timber virendeil truss combine to reduce the amount of steel and concrete (less embodied carbon). For the foundations, concrete pads and composite ground beams allowed a flexible approach around existing drains.
Exposed Structrual Plywood engineered timber ceiling grid with rooflights
steel frame domestic extension london

The extension was designed to use as little steel and concrete as possible, and instead to use timber.

Dinesen douglas-fir solid wood floors will flow into the extension from the refurbished ground floor spaces linking new and old. The plywood ceiling grids were extend the warmth of the timber floors to the ceilings. Rooflights within the grids bring in more natural light deep into the plan. Doors and windows are sliders, minimally framed to maximise views into the spectactular garden.

Externally, the extension will be timber clad in larch vertical battens. The full width timber deck will be punctuated by trees bringing the landscape closer to the kitchen and providing privacy, shading and controlling views in and out.

timber frame extension. low carbon construction
Steel frame during installation
large extension to victorian house London
Architect on site extension London dont move improve