The average sold price for a 5 bedroom home is about $122.49/sq foot. However, having said that, this will never be an accurate measurement on the your market value of your home. Zip code 75033 includes areas such as Grayhawk with homes in the range from around $300's - $400's and Shaddock Creek with homes from about $900k and up. We are not comparing apples to apples if you are just looking at zip codes. Even homes in the same subdivision have to be compared individually in terms of the upgrades, location, age, square footage, # of bedrooms etc.
I'm a realtor specializing in the area and I'd be happy to assist you in selling your home. I usually sit with my client and show the real data and then discuss about my client's goal. Then we work toward achieving that goal. You can reach me at 469-371-2899.
Seniors Real Estate Specialist
Certified Home Stager
United Real Estate Dallas