The homes actively avoid the direct use of fossil fuels—such as gas for heating—and utilize electric-based systems that enable use of renewables for on-site generation. “We also tend to approach projects with a ‘fabric first’ mentality whereby Koto buildings are designed with high-performance envelopes that limit the amount of energy required for services such as heating, cooling, and lighting,” says Theo.  Photo 7 of 17 in Ceiling beams by Edward Elion from This Prominent U.K. Prefab Builder Is Scaling Up From Cabins to Custom Residences

Ceiling beams

7 of 17

The homes actively avoid the direct use of fossil fuels—such as gas for heating—and utilize electric-based systems that enable use of renewables for on-site generation. “We also tend to approach projects with a ‘fabric first’ mentality whereby Koto buildings are designed with high-performance envelopes that limit the amount of energy required for services such as heating, cooling, and lighting,” says Theo.