We specialise in energy-efficient homes. Caber House is constantly refining and developing our designs using expert knowledge and cutting-edge technology to design and build these super-efficient houses. As a result, the PassivHaus Low Energy Standard and an SAP rating of 100 can be achieved: Zero Carbon & even Positive Energy.This excellent rating makes these the most efficient standard houses available to self-builders. It is important to note that achieving such exacting standards is not a one-size-fits-all approach. All of our houses can meet these standards, and each design is optimised using site-specific data so that every client gets an efficient home.