Otter Farm

As featured on Channel 4’s Grand Designs, Irebuild led both the project management and construction of the ambitious eco-project, Otter Farm.

Located in Devon, the project consists of two eco buildings: a family eco-home and a rustic commercial kitchen. Both buildings are excellent examples of bespoke and ambitious environmental building and design.

The property is now a working vineyard called Heron Farm


A bespoke timber frame structure, the family home consists of an expansive state-of-the-art kitchen, mezzanine, office, living area, four bedrooms and two bathrooms.

An environmentally-sound thermodynamic system provides underfloor heating and hot water for both buildings. The walls are heavily insulated with recycled paper, ensuring that the home is warm in the winter and cool in the summer. Triple glazed glass collects and retains passive solar, creating optimum efficiency.

Commercial cob-walled kitchen

The steel-framed Kitchen Garden School comes complete with cob walls – an ancient Devonshire building material that acts as an excellent insulator and heat sink.

The clay used in the cob was excavated from the site itself.

A vast space complimented by large windows, the school is kitted out with a fully working kitchen suitable for running courses and hosting events.

Living roofs

Both buildings are topped with plough-shaped living roofs edged with aluminium and topped with grass.

These living roofs will help improve biodiversity, reduce surface run-off when it rains, minimise the need for air conditioning in the summer, and also provide insulation in the winter. 

“Over the course of the ten months we were filming the Otter Farm episode for Grand Designs, the Irebuild team made our time on site a sheer delight. I couldn’t have met a nicer, happier and more skilled bunch of guys.”

Claire Lasko, Director, Grand Designs