Okay, let’s tackle this. So Winston has 36 years of experience in residential design, which is a significant amount of time. His skills are in high demand, especially in sustainable design and historic preservation. He’s also got a degree from Harvard, which adds prestige. Location is Santa Monica, California, which is a desirable area. Considering his experience, skills, and education, I’m estimating his hourly rate to be around $125. This is slightly lower than what I’d expect for someone with his level of experience in a major city like Los Angeles, but it’s still a good rate for a residential designer with his background.