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Assessment
Sales Ratio
The chart below summarizes the results of the 2006 real
estate assessment/sales ratio study conducted by the Virginia
Department of Taxation, for jurisdictions in the Northern
Virginia area. The study estimates the existing assessment/sales
ratio (ASR) for each locality by comparing assessed values to
the selling prices of normal sales of real property.
The study also evaluates the level of uniformity in the
assessment of real property within and among jurisdictions
throughout the Commonwealth as reflected by a standard
statistical measure known as the coefficient of dispersion
(COD).
The coefficient of dispersion
measures how closely the individual ratios are arrayed around
the median ratio. The smaller the measure of dispersion, the
greater the uniformity of the ratios. The more closely the
ratios are grouped around the median, the more equitable the
property assessment, since properties were assessed at similar
rates. According to the International Association of Assessing
Officers “…a coefficient of 10% or less indicates a good
distribution of assessments for residential properties.
Similarly, a coefficient of 15% or less indicates a good
distribution for more diverse classes (of property).
The overall median assessment sales ratios and coefficients
taken from the 2006 Assessment Sales Ratio Study for the County
of Gloucester and surrounding jurisdictions are as follows:
| Locality |
Latest Reassessment |
Number of Sales |
ASR |
COD |
|
Gloucester |
2006 |
669 |
85.84% |
18.88% |
|
Mathews |
2005 |
266 |
66.16% |
26.92% |
|
Middlesex |
2004 |
410 |
46.31% |
38.43% |
*Source: Median Assessment/Sales Ratios for
Virginia localities,
Feb. 2008. |
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