Favor materials with structures perceived at human scale.
Too many buildings are made with dull, simple expanses of metal and glass. Repeated endlessly, these materi- als are ugly.
Therefore:
Avoid large expanses of perfectly flat, smooth panels of metal and glass. Use complex materials that have subtle structural characteristics that can be perceived at human scales.
The most beautiful materials are also the most complex – that is, they have rich structural divisions within them that can be seen at human scales. Wood, stucco, brick, rusted metal, and other materials have this rich complexity. Perfectly smooth metal, glass, and painted wood panels do not.
When seeking a Biophilic Urbanism, take care that the materials are not too simple and monolithic.
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Last, leave space after a full-stop page fold for loosely related material such as examples or anticipated applications.