Treetops is a new build detached dwelling designed to meet the forever home dreams for the Applicants and so named due to the surrounding trees and eco-materiality of the project. The proposed scheme is to build a sustainable, eco-house to passive house standards. Sustainable outcome architecture designs were achieved by using the RIBA Sustainable Development Outcome Model principals to make the dwelling sustainable for the future generations, with low embodied carbon and reduced whole life carbon considerations used to lead proposal design development wish local biodiversity evaluations incorporated to protect, enhance and restore the potential of the site through the creation of new onsite habits attractive to Northern Ireland Priority Species