It all starts with the inspection. An appraiser's duty is to inspect the property being appraised to ascertain the true status of that property. He or she must actually see features, such as the number of bedrooms, bathrooms, the location, and so on, to ensure that they really exist and are in the condition a reasonable buyer would expect them to be. The inspection often includes a sketch of the property, ensuring the proper square footage and conveying the layout of the property. Most importantly, the appraiser looks for any obvious features - or defects - that would affect the value of the house.

Once the site has been inspected, an appraiser uses two or three approaches to determining the value of real property: a cost approach, a sales comparison and, in the case of a rental property, an income approach.

Appraisers become very familiar with the neighborhoods in which they appraise. They thoroughly understand the value of particular features to the residents of that area. Then, the appraiser researches recent transactions in close proximity to the subject and finds properties which are "comparable" to the real estate at hand. Using knowledge of the value of certain items such as remodeled rooms, types of flooring, energy efficient items, patios and porches, or additional storage space, we adjust the comparable properties so that they are more accurately in line with the features of subject property. Using knowledge of the value of certain items such as square footage, extra bathrooms, hardwood floors, fireplaces or view lots (just to name a few), the appraiser adjusts the comparable properties to more accurately portray the subject property. For example, if the comparable property has a fireplace and the subject does not, the appraiser may deduct the value of a fireplace from the sales price of the comparable home. If the subject property has an extra half-bathroom and the comparable does not, the appraiser might add a certain amount to the comparable property.

The appraiser uses information on local building costs, labor rates and other factors to determine how much it would cost to construct a property similar to the one being appraised. This value often sets the upper limit on what a property would sell for. Why would you pay more for an existing property if you could spend less and build a brand new home instead? While there may be mitigating factors, such as location and amenities, these are usually not reflected in the cost approach.

In the case of income producing properties - rental houses for example - the appraiser may use a third approach to valuing the property. In this case, the amount of income the property produces is used to arrive at the current value of those revenues over the foreseeable future.

Combining information from all approaches, the appraiser is then ready to stipulate an estimated market value for the subject property. It is important to note that while this amount is probably the best indication of what a property is worth, it may not be the final sales price. There are always mitigating factors such as seller motivation or urgency of a seller that may adjust the final price up or down. But the appraised value is often used as a guideline for lenders who don't want to loan a buyer more money than the property is “actually worth”. The bottom line is, an appraiser will help you get the most accurate property value, so you can make the most informed real estate decisions.