Market value is what price the house will bring at a given point in time. A comparative market analysis is an informal estimate of market value, based on sales of comparable properties, performed by a real estate agent or broker.

It also is important to examine the property. If you are unable to get into a foreclosure property, check with surrounding neighbors about the property's condition.

It also is possible to do your own cost comparison through researching comparable properties recorded at local county recorder's and assessor's offices, or through Internet sites specializing in property records.

Your real estate agent will be happy to provide a comparative market analysis, an informal estimate of value based on comparable sales in the neighborhood. You also can research "the comps" yourself by checking on recent sales in public records. Be sure that you are researching properties that are similar in size, construction and location.

This information is not only available at your local recorder's or assessor's office but also through private companies and on the Internet.

An appraisal, which generally cost $200 to $300 to perform, is a certified appraiser's opinion of the value of a home at any given time. Appraisers review numerous factors including recent comparable sales, location, square footage and construction quality.

An appraisal is a certified appraiser's estimate amenities, energy efficiency, the quality of the of the value of a home at a given point in time. To make their determination, appraisers consider square footage, construction quality, design, floor plan, neighborhood and availability of transportation, shopping and schools. Appraisers also take lot size, topography, view and landscaping into account.

A comparative market analysis is an informal estimate of market value, based on comparable sales in the neighborhood, performed by a real estate agent or broker. You can do your own cost comparison by looking up recent sales of comparable properties in public records. These records are available at local recorder's or assessor's offices, through private companies or on the Internet.

One survey by the National Association of Realtors shows that resale homes do have an edge over new homes. The trade group's figures show the median price of resale homes increased 3 percent between 1994 and 1995, compared to 0.8 percent for new homes in the same period.

The sales price is the amount of money you as a buyer would pay for a property.

The appraisal value is a certified appraiser's estimate of the worth of a property, and is based on comparable sales, the condition of the property and numerous other factors.

Neither of these services produce official appraisals. They also don't factor in market nuances or other issues a certified appraiser or real estate professional might in assessing the value of your home.