We are London architects for listed buildings and houses in conservation areas, from Grade II listed villas in Highgate and Hampstead to a 17th-century mill on the River Test. The work is adaptation: making an old building comfortable and efficient to run, while keeping and strengthening its character.

Every project starts with a close reading of what the building is and how it has changed. From there we design spaces that can take new uses, setting old and new structure honestly side by side. We secure listed building consent and planning in conservation areas, and the conversations with conservation officers often shape a scheme as much as the design does.

Energy performance is part of every heritage brief. At Highgate Villa, a Grade II listed Cottage Orné, breathable wood-fibre insulation, slim double glazing and an air source heat pump will cut operational carbon by 90%. At Mill House in Hampshire, working with the county's conservation officers and the SPAB, we used lime plaster and wood-fibre insulation, and a water source heat pump now draws on the mill race. At Warwick Square in Pimlico, a Grade II listed former bank became three family homes and a finalist in the AJ Retrofit Awards.