Real estate appraisal, property valuation or land valuation is the process of developing an opinion of value, for real property (usually market value). Real estate transactions often require appraisals because they occur infrequently and every property is unique (especially their condition, a key factor in valuation), unlike corporate stocks, which are traded daily and are identical (thus a centralized Walrasian auction like a stock exchange is unrealistic). The location also plays a key role in valuation. However, since property cannot change location, it is often the upgrades or improvements to the home that can change its value. Appraisal reports form the basis for mortgage loans, settling estates and divorces, taxation, and so on. Sometimes an appraisal report is used to establish a sale price for a property.
“His 25 years of experience as a professional real estate appraiser, combined with his state certification, and his memberships in many organizations for both Realtors and property appraisers, make him an exceptional candidate for this important office,” Montanari said. “Besides his experience, Mike has the intelligence, character, and the right demeanor to serve all residents of Pinellas County.
Property taxes may be affected with change in ownership. When buying real estate property, you should not assume that property taxes will remain the same. Whenever there is a change in ownership, the assessed value of the property may reset to full market value, which could result in higher property taxes. Please use our Tax Estimator to approximate your new property taxes.

However, the recent trend of the business tends to be toward the use of a scientific methodology of appraisal which relies on the foundation of quantitative-data,[10] risk, and geographical based approaches.[11][12] Pagourtzi et al. have provided a review on the methods used in the industry by comparison between conventional approaches and advanced ones.[13]
Automated valuation models (AVMs) are growing in acceptance. These rely on statistical models such as multiple regression analysis, machine learning algorithms or geographic information systems (GIS).[17] While AVMs can be quite accurate, particularly when used in a very homogeneous area, there is also evidence that AVMs are not accurate in other instances such as when they are used in rural areas, or when the appraised property does not conform well to the neighborhood.

There are also voluntary professional bodies for real estate valuation such as the Royal Institute of Chartered Surveyors ('RICS') and the Property Institute of New Zealand ('PINZ'). Both of these bodies have a wider membership, beyond real estate valuers. PINZ has over 2,500 members in New Zealand and overseas (such as ex-pats in the UK, Asia and Australia). PINZ has a service level agreement with the NZIV, whereby PINZ contracts to perform tasks for the statutory professional body, NZIV. PINZ was formed in 2000 to act as the voice of the property professions. There have been 'political divisions' within the valuation profession in New Zealand, expressed at AGMs and through 'proxy wars' over the last 20 years or so. Many valuers are supportive of amalgamation of the NZIV functions under the multi-disciplinary voluntary body PINZ, whilst many others wish to retain a separate statutory professional body for valuers (the NZIV). There are various reasons in the debate and the governing legislation is under review and amendments or repeal is being considered. At present, the Act remains in force and the NZIV is legally a distinct body with statutory functions, powers and duties.
In the United States, appraisals are for a certain type of value (e.g., foreclosure value, fair market value, distressed sale value, investment value). The most commonly used definition of value is Market Value. While Uniform Standards of Professional Appraisal Practice (USPAP) does not define Market Value, it provides general guidance for how Market Value should be defined:

By Phone: When requesting public records by phone, contact Pinellas County Marketing & Communications, (727) 464-4600. To help us expedite and avoid delays in processing your request, please be as detailed as possible with the information you are requesting. The request will be reviewed and forwarded to the department liaison responsible for processing your request. You will be notified through your preferred communication method of updates relating to your request.
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