How a Victorian terrace in a quiet Brixton mews secured planning permission through heritage-led design, neighbour engagement, and a glazed extension built around the eucalyptus tree at the heart of the garden.

When a previous planning application had been refused, 4SA's conservation expertise found a way forward. The result is a light-filled contemporary kitchen extension that honours the character of a Victorian home without mimicking it.

The total cost of a heritage home extension in London is rarely the construction figure alone. A 4SA architect's guide to contingency, VAT, consultant fees, and the four decisions that keep a Conservation Area project on budget from brief to completion.

Grand Designs Magazine has featured Curve House in its September 2024 issue. The piece focuses on the side extension and kitchen-diner of this Victorian semi in the Sunnyhill Road Conservation Area, Streatham, including the curve-edge island, bespoke cherry joinery, and terrazzo-effect flooring.

Belgian lifestyle magazine Actief Wonen has featured Curve House, our kitchen and terrace extension to a home in the Sunnyhill Conservation Area, Streatham. The piece covers both the architectural moves and the full interior specification, from bespoke cherry joinery to the terrace trellis.

Planning permission granted for the comprehensive refurbishment and extension of a substantial detached Victorian home in Kingston upon Thames. 4SA appointed for the full RIBA Stages 1 to 7, taking a four bedroom family house to six.

How 4SA secured planning permission for a Georgian villa in the Camberwell Grove Conservation Area through heritage-led design and archival evidence.

Curve House, 4SA's contemporary kitchen extension within the Sunnyhill Road Conservation Area in Streatham, has been longlisted for Don't Move, Improve!, New London Architecture's annual programme for London's best domestic-scale design.