London
James Mackintosh Architects
James Mackintosh Architects is a conservation-led architectural practice dedicated to the care, repair and thoughtful adaptation of historic buildings. We help people make sensitive, sustainable changes that protect character while supporting future use.
Architecture
James Mackintosh Architects is a RIBA-chartered conservation practice based in Chipping Norton, Oxfordshire, working exclusively on historic houses, listed buildings, scheduled ancient monuments and buildings within conservation areas. With over thirty years of combined experience and full conservation accreditation across the team, they bring deep technical expertise and a genuine passion for bringing old buildings back to life — sensitively, sustainably, and with lasting care.
Their approach is rooted in listening: to the client, to the building, and to the landscape it sits within. From modest repairs to complex listed building extensions, James Mackintosh Architects guide clients through every stage with calm confidence — carrying out heritage research, working closely with planning and conservation officers, and designing solutions that are always led by a thorough understanding of a building's history and significance. Whether you own a Cotswolds farmhouse, a country estate or a Grade I listed townhouse, they'll help you unlock its potential without compromising what makes it special.
Project featured with HomeInspire.
Old Mission Church, Gloucestershire
HomeInspire visited Geoff and Julie's award-winning conversion of a Victorian mission church in the Cotswolds village of Paxford to explore a project unlike anything we've filmed before. Geoff walked us through three and a half years of extraordinary effort. Designed with the guidance of James Mackintosh Architects, the conversion navigates heritage constraints, a major structural crisis and a complete rethink of the layout with remarkable intelligence. What could have been a compromised space is instead something genuinely exceptional: a freestanding pod bedroom suspended above a bespoke kitchen, original pitch pine beams revealed and restored, and a stained glass window that stops you in your tracks the moment you walk through the door.