Design proposals should reflect a clear conceptual strategy which is resolved in built form at a detailed level. There are no restrictions or limitations in the use of materials or building systems. However, projects should be developed with an integrated approach to materials and systems and should reflect an understanding of the characteristics, advantages, and limitations of the materials selected. CRAN® is committed to promoting the value of design irrespective of style. Residential architects tend to work in a variety of styles based on input from clients, local building traditions, and regulatory requirements. As in professional practice, design proposals should responsibly address the needs of the client, context, climate, and culture of the area. Design proposals should be informed by historic precedent, but should represent contemporary ideas of domesticity and building science. Through renderings and elevations, the proposals should demonstrate qualities such as materials, texture, and color. Equal consideration should be given to the arrangement and articulation of exterior form and interior spaces.