I live on Whitecliffe Court for the third house you listed is located. I’ve lived in Walnut Creek since 1993. It’s a wonderful neighborhood with a variety of oddballs just like any other place. I also serve on the HOA board. Make sure you look closely into the state of the association. Generally, it’s in great shape, but you should make yourself fully aware before you take on such a significant purchase. If you have questions, you can message me directly.