I'll preface this by saying that Clay has been one of my best friends since we were in daycare together 40 years ago and I've known his wife since we were in 3rd grade.
Clay built what was going to be my "forever" home back in 2007. He showed us several plans based on what we described to him, then we worked together to tweak them to fit our personal wants/needs. The process was seamless, even though my wife and I had some "out of the ordinary" types of wants. For example, people at the time were doing stained concrete inside their homes, but no one was stamping it, too. He said "no problem" and worked with their material suppliers and concrete crew to figure it out and the finished product was flawless. There was never any doubt about the process, but, by chance, we lived next door to where we building and were able to watch the entire process daily from our kitchen window. We wound up having to sell the house in 2013 due to some personal issues, but I still miss that house. The next time I'm able to build from scratch, Clay will without a doubt get the job.
The bonus of using Clay is that his wife has an AMAZING eye for design and colors. While she has her own career, she's always around to provide input, tips, and ideas. My wife and I still consult with her on colors any time we repaint anything in our current home.
Along with several custom homes, Clay built quite a few spec homes in Castlegate and Pebble Creek when they were going/expanding, but has moved on to focus more on purely custom homes. He really never had a big web presence, instead relying on word of mouth, so there probably isn't a lot of online info/history.
The house featured on the Kolby Homes website is their current home near Anderson. Clay and Amberly designed the house and have done a lot of work themselves. He's not just someone with contacts in the industry - he knows the process of building a home intimately and could work right alongside the trades without being out of place. Clay did the concrete counter tops in their house and Amberly laid and grouted every brick on their front porch last Spring Break because she was bored and their brick guys were on another job. Clay is also an artist on a skidsteer.

I'll try and post some more pictures of the house Clay built for me, but here's an old listing I found online with photos, for now.
https://www.navasotarealtyinc.com/listing/202-moore-st-navasota/ You can google image search the address, too, and there are more listing photos there from the sale by the owners that purchased from us.
This is one of my favorite houses of his. He bought a tear down on Pershing in College Station and built this home for his family maybe 10 years ago(?).
https://www.har.com/homedetail/208-pershing-ave-college-station-tx-77840/10298621?sid=5376385