I just stuffed the words "philosophy" and "architecture" into Google and got some interesting results; you might try using those as keywords.
Example: Book Review
[q]
Proportions: Science, Philosophy, Architecture
Richard Padovan � 1999
The main argument which appears to dominate this book is the idea that "The world is a harmonious mathematical creation and that in order to participate in that harmony the things we make must obey the same mathematical laws".[/q]
http://students.bath.ac.uk/ab1ajl/padovanessay.html
Unfortunately, a lot of the results are personal and academic pages; so be prepared for some Adventures In Tasteless Html :P