Conservation architects · Twickenham
A small, dedicated team in Twickenham, working with skilled traditional craftspeople on buildings of international significance.

Clients include
Our portfolio consists almost entirely of buildings of international significance, from royal palaces and cathedral chapels to castles, ruins and country houses.

Cleaning, lime mortar repair and new stone matched to the original, from Buckingham Palace to St George's Chapel.

Re-roofing and leadwork, from Horsham stone slates at Wakehurst to the lead roofs of the Old Royal Naval College.

Minimum intervention repairs to Grade I and Scheduled Ancient Monuments under the English Heritage Framework.

Stone cleaning, limewash and careful repair of historic interiors, revealing what centuries of grime concealed.

Ramps, gates, lifts, viewing decks and new uses designed to sit quietly within historic fabric.

Quinquennial and condition surveys, conservation plans, maintenance programmes and Surveyor of the Fabric roles.
Selected work
From a fire-gutted dockyard church on the Isle of Sheppey to the "Sistine Chapel of the UK" in Greenwich. All projects







At Buckingham Palace, our care in sourcing new stone addressed a problem that had been unresolved for over 150 years. At Clifford's Tower, every damaged stone was tested and every one retained, because history lives in the surface of historic materials.
On site we encourage close collaboration with conservators and specialist trades. We give talks and lectures, host study visits for trainee architects, surveyors and conservationists, and keep training ourselves, on SPAB courses and working parties, at West Dean and in The National Archives.
Our expertiseLed by Martin Ashley MVO, a SPAB Scholar in 1976, with partners Kieran Kintrea, Giulia Baldin, James Campen and Ayaka Takaki. 60% of our qualified architects are women, against an industry average of 40%.
Tell us about the building and what it needs. Yvonne Loftus is the first point of contact for every enquiry.