I don't want anyone to miss this. I'll absorb this stuff into my own site soon but as part of their transparency the tax department has published a list of comparable qualified sales for 2009/2010 which they used to figure out rations for particular neighborhoods. This is THE most important factor in the reval process:
2010 Mecklenburg County Property Revaluation - Qualified Sales
Plug in your address and you can view online or download into a spreadsheet.
It isn't 100% complete. In order to get the big picture you would have to have the tax values plugged in which you can get from
Real Estate Lookup
Next, sort the spreadsheet low to high and grab the middle values. If there are an even number of values then average them together.
Next, divide the middle value by the middle sale price. That will give you the ratio.
If the number is greater than 1 then it shows a likely relative trend that values for that neighborhood will go down. If it is less than one then it is likely they will go up. A .5 for instance means you're likely to get hit with a 100% increase or so.
If the ratio is greater than 1 then there's a chance there is a foreclosure issue. There isn't a way that I know of without crunching raw data to get those percentages. I've done this on realmeck.com again with a sample neighborhood of
http://realmeck.com/dir/Charlotte/Pr...S_FOREST_D111/
If the FC % is > 15% then it is factored in. I don't know what the scale is and hope to find out soon. But the ratio number and the math above that I mention is all you need if your number is less than 1.
Hopefully if you compare the County's numbers with what I had they will be similar or at least show the same trend. Eventually I'll build reports to compare them but it should give you an idea that it isn't 100% voodoo or a Jennifer Roberts conspiracy as another message board is repeating.
If the math above doesn't jive with your reval I'd be surprised but you would have a good case for an appeal. And remember these ratios are set per tax neighborhood as the main basis for your rate change. There will be minor fluxes on a particular street but probably not by much.
If there's something about your property that makes it worth less than the county is aware of then by all means appeal and let them know. For me the issue is with my entire subdivision and that can help too if the county isn't aware of a big factor that they can't measure by looking at sales.
Anyway, I hope this math helps people understand the numbers better and appreciate the transparency from the assessor's office.