All three great neighborhoods, Hope Valley has been the best selling neighborhood in Durham for the last 2 years. Woodcroft also sells very well and both have been increasing in value, but Hope Valley at a higher percentage. Grove Park was the 2nd best selling neighborhood last year in Durham, however a number of factors have lead to a drop in value in the last 6 months or so. Hope this helps, let me know if I can help in any way.
Hope Valley Farms - average 3.22% appreciation
Woodcroft - average 3.18% appreciation
Durham as a whole had an average 2.11% appreciation rate, so both neighborhoods are above average.
Grove Park has many different sections, a real estate agent will need to look closely at the price point and section you're considering.
These three neighborhoods were the three top sellers in Durham for 2008.
If i can be of further assistance, please fel free to contact me at anytime.
Coldwell Banker HP & W Realtors