Boutique Caravans, a prefab home design firm based in the UK, has competed construction on their first development of factory built homes. The Penmayne Edge Park consists of 10, low energy, 2 and 3 bedroom holiday homes. Each is for sale with a 70 year license. Eco-friendly features include large south-facing triple-glazed windows, solar photovoltaics, rainwater recycling, and a Nilan heat recovery system. Buyers can also opt for a managed holiday rental service. The Edgeʼs modular construction also allows for other technological and ecological systems including a super insulated, air tight structure, an air-source heat and ventilation system, and responsibly sourced and sustainable construction materials.