Hello D., In general townhomes or condos don't do that well in the Dallas area in terms of appreciation. If you are strictly looking at something to invest in, I would highly recommend a single family home with at least 4 bedrooms on a single level. Those rent real well for top dollar.
If you are looking for something to live in, that is another story. Addison Circle is highly desirable and I think the townhomes from City Homes will do very well. They built the same ones in the Knox Henderson area and Oak Lawn and they did real well there too. The HOA is very reasonable at $250 per month.
You may also look at the townhomes they built in 2005 on Quorum and Parkview. You may be able to get a better deal on something that is barely lived in and already upgraded.
I'll be happy to assist you or answer any questions if you are not already working with a Realtor.... more