A Modern Glass and Flint Addition Revitalizes a Grade II-Listed Farmhouse
Will Gamble Architects has completed an innovative extension to a Grade II-listed farmhouse in North Hertfordshire. Named Flint Farm, the design adds a glass-lined, “unashamedly contemporary” extension that enhances the home’s layout while respecting its historic character. The extension connects the farmhouse with a renovated black barn, creating a seamless blend of old and new.
Design Concept and Historical Context
The Flint Farm extension replaces low-quality structures that were added to the farmhouse over time, aiming to improve the flow and functionality of the home. The design centers around a kitchen and dining area encased in floor-to-ceiling glass, offering a contemporary look that contrasts with the farmhouse’s historic aesthetic. The extension sits on a flint base, nodding to the surrounding agricultural barns, and features a roof with angular steel peaks and troughs, inspired by the black timber-clad gables of the original farmhouse.
Project architect Miles Kelsey described the addition as “unashamedly contemporary,” ensuring the farmhouse and its outbuildings remain visually distinct. By placing the extension on the side of the property, the architects enhanced the connection to the neighboring 18th-century agricultural barn, which had previously undergone a series of crude repairs and was poorly integrated with the house.
Barn Renovation and Integration
Will Gamble Architects revitalized the barn, restoring its black timber cladding and reworking its roof and eaves to improve thermal efficiency while retaining its character. The barn’s historic timber framing is now exposed, and a new picture window frames a view of the garden. These improvements allow the barn to function as part of the primary living space, with a more meaningful connection to the farmhouse.
Interior Layout and Materials
The extension also provides space for a double-height entrance with an oak staircase and slender steel spindles, linking the main farmhouse to private areas such as the snug, study, and bedrooms. The interior materials combine polished concrete, blackened timber, natural oak, and exposed structural elements. Marble and terracotta accents further enhance the tactile feel of the interiors, echoing the textures of the surrounding farmyard.
Planning and Heritage Challenges
Due to the farmhouse’s heritage status, the project faced a lengthy planning process. However, the team uncovered several historical features during construction, including a well that was incorporated as a patio feature, adding to the charm of the project.
Flint Farm by Will Gamble Architects is a harmonious blend of contemporary architecture and historic preservation. By carefully integrating the new extension with the farmhouse and barn, the design provides a functional and beautiful space for a growing family while respecting the property’s rich history.