This thesis investigates the connection between LEED Environmental certification and interior architecture through materials. The purpose of this thesis is to introduce our own profession and others interested into use of LEED in design. Specifying materials for a new construction project for Pop & Jazz Conservatory was done together with Architects Tommila. The material is based on BREEAM certification goals that have been implemented for the project Musakuutio by the investor VARMA. The research is districted into the interior materials, their technical requirements and the spatial needs set by the end users of Musakuutio.

Using the double diamond process as a research tool, the focus is on a result based on the users’ requirements through trial and error. Research was conducted based on the third floor of the building alone in order to gain a deeper perspective into the materials used within. Based on the research of LEED v4, the materials were rated based on the three key factors that affect the scoring process. The research is conducted alongside the Finnish building standards and RT-definitions.

Scoring the materials through LEED v4 the selection of materials was easier and worked as a guideline for the design proposal. Based on the research, this thesis delivers the key factors for material specification for projects concerning interiors that are applying for LEED accreditation. The end-result includes a concept stage design proposal, the visual outlook of the chosen area and colour scheme according to the concept. Materials are justified based on their technical qualities and suitability to the concept.