S.T.
I would highly recommend Sheryl Burken with Colorful Impressions. She works with one other designer in her business. She is professional and a pleasure to work with. She designed a lovely backyard patio area when we lived in a townhome in Turtle Creek and is now designing a plan for our home out in Las Colinas. She will meet with you and design a plan for you at a cost. For us, the plan was $1000. Then, you decide to either do the landscaping yourself (which is what my brother in law did) OR ask her to proceed with the project (which is what we did!). I'd be upfront if your budget is set and with any other wishes you have. Here is the website. www.colorfulimpressions.com