There are several different ways to calculate this, but the market value based on comparison lots in your neighborhood and what they have sold for in the past and what a lot like yours would sell for now is the true test of worth. I pulled up your subdivision and didn't find any available lots or any past comps on sold lots. The builder probably bought a parcel of land, subdivided and built out the entire community. Therefore, individual lots were not sold without already being improved.
What the tax assessor values your land to be worth or how much value that you put on the land to insure it could also bring different numbers. The reason that you want the information will determine how you value it for that particular purpose. If you are unsure how to value the land, a local appraiser could help you. Also, your tax bill will have the improved value (which would be the actual home) and the land value separated out too.
Hope this helps. With your address, I could aid you further. Let me know if you want more help.
Thanks,
Ross Harkness, RealtorĀ®/Builder
Palmetto Property Pros Team
Wilkinson and Associates - Tue Dec 1 2009, 10:46