Home / DIY / Modern Plans by Coates Design, Inc. Modern Plans by Coates Design, Inc. DIY, Home Improvement Blogs, houseplans Matthew Coates is a Houseplans.com Signature Architect whose innovative contemporary designs celebrate nature and sustainability. Tweet Pin It Related Posts Easy steps to get your lawn ready for spring DIY home security systems: The smart, affordable way to secure your home 3 simple, fast changes to make your kitchen more usable and beautiful Leave a Reply Cancel replyYou must be logged in to post a comment.