Carlos Arroyo Architects is a Madrid based architecture & planning office of international scope, currently building in Spain, France and Belgium. A multidisciplinary team conducts projects of a varied nature, with a strong emphasis on innovation and sustainable development; innovation on all scales, from building technology to landscape management, developing new types of public building, or researching into new forms of housing. Sustainability is an essential driving force of their work, which has been described by critics as "sustainable exuberance".