In the under-$265k range average 133 days on market (20-276) (9 sold 119 listed) 6 months supply
In the $265-500k range average 98 days on market (9-229) (13 sold 140 listed) 6 months supply
In the $500-950k range average 88 days on market (13-246) (5 sold 143 listed) 8 months supply and
In the over-$950k range average 123 days on market (9-333) (6 sold 170 listed) 12 months supply.
You can get similar statistical data from my website by email. Just visit http://www.DallasHomeValueReport.info
Days on market can fluctuate greatly because of the time of the year as well. Again, a realtor can give ou specific information that would show you the best selling time in a specific area. Of course with that said there are homes that do not sell because of how they are marketed, staged, priced, and many other factors. Sounds kind of confusing doesn't it. Just like anything you have to know the statistics to come up with great information. If you need any additonal help please let me know and I will be happy to assist you..
You can also look at reports from NTREIS... at http://www.ntreis.net/documents/NTREISSTATS_123201211010.pdf
You can also look at stats from TAMU at http://recenter.tamu.edu/mls/ntreis/
Hopefully this gives you an idea of what you need.
However, with that said - the broad average for Areas 11, 16 and 18 (North Dallas) for single family homes sold in January was 94 days and for condos/townhomes was 96 days.
Asking for generic "DOM" gives a false impression to any home owner
Lynn911 Dallas Realtor & Consultant, Credit Repair Advisor