Real estate appraisal , property valuation or land valuation is the practice of developing an opinion of the value of real property, usually its Market Value. The need for appraisals arises from the heterogeneous nature of property as an investment class: no two properties are identical, and all properties differ from each other in their location - which is one of the most important determinants of their value. So there cannot exist a centralised Walrasian auction setting for the trading of property assets, as there exists for trade in corporate stock. The absence of a market-based pricing mechanism determines the need for an expert appraisal/valuation of real estate/property.
Although some areas require no license or certification at all, a real estate appraisal is generally performed by a licensed or certified appraiser (in many countries known as a Property Valuer or Land Valuer and in British English as a "valuation surveyor"). If the appraiser's opinion is based on Market Value, then it must also be based on the Highest and Best Use of the real property. For mortgage valuations of improved residential property in the US, the appraisal is most often reported on a standardized form, such as the Uniform Residential Appraisal Report. Appraisals of more complex property (e.g. -- income producing, raw land) are usually reported in a narrative appraisal report.
Types of value
There are several types and definitions of value sought by a real estate appraisal. Some of the most common are:
- Market Value – The price at which an asset would trade in a competitive Walrasian auction setting. Market Value is usually interchangeable with Open Market Value or Fair Value . International Valuation Standards (IVS) define Market Value as:
- Value-in-use – The net present value (NPV) of a cash flow that an asset generates for a specific owner under a specific use. Value-in-use is the value to one particular user, and is usually below the market value of a property.
- Investment value - is the value to one particular investor, and is usually higher than the market value of a property.
- Insurable value - is the value of real property covered by an insurance policy. Generally it does not include the site value.
- Liquidation value -- may be analyzed as either a forced liquidation or an orderly liquidation and is a commonly sought standard of value in bankruptcy proceedings. It assumes a seller who is compelled to sell after an exposure period which is less than the market-normal timeframe.
Price versus value
It is important to distinguish between Market Value and Price. A price obtained for a specific property under a specific transaction may or may not represent that property's market value: special considerations may have been present, such as a special relationship between the buyer and the seller, or else the transaction may have been part of a larger set of transactions in which the parties had engaged. Another possibility is that a special buyer may have been willing to pay a premium over and above the market value, if his subjective valuation of the property (its investment value for him) was higher than the Market Value. An example of this would be the owner of a neighbouring property who, by combining his own property with the subject property, could thereby obtain economies-of-scale. Such situations often arise in corporate finance, as for example when a merger or acquisition is concluded at a price which is higher than the value represented by the price of the underlying stock. The usual rationale for these valuations would be that the 'sum is greater than its parts', since full ownership of a company entails special privileges for which a potential purchaser would be willing to pay. Such situations arise in real estate/property markets as well. It is the task of the real estate appraiser/property valuer to judge whether a specific price obtained under a specific transaction is indicative of Market Value.
Market value definitions in the USA
In the US, appraisals are performed to a certain standard 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 USPAP does not define Market Value, it provides general guidance for how Market Value should be defined:
a type of value, stated as an opinion, that presumes the transfer or sale of a property as of a certain date, under specific conditions set forth in the definition of the term identified by the appraiser as applicable in an appraisal.
Thus, the definition of value used in an appraisal or CMA analysis and report is a set of assumptions about the market in which the subject property may transact. It becomes the basis for selecting comparable data for use in the analysis. These assumptions will vary from definition to definition but generally fall into three categories:
Three approaches to value
There are three general groups of methodologies for determining value. These are usually referred to as the "three approaches to value"which are generally independent of each other:
- The cost approach
- The sales comparison approach and
- The income approach
However, the recent trend of the business tends to be clinging to the scientific methodology of appraisal which lies on the foundation of quantitative-data , risk and geographical based approaches , . Pagourtzi et al. have provided a review on the methods used in the industry by comparison between conventional approaches and advanced ones .
The appraiser using three approaches will determine which one or more of these approaches may be applicable, based on the scope of work determination, and from that develop an appraisal analysis. Costs, income, and sales vary widely from one situation to the next, and particular importance is given to the specific characteristics of the subject.
Consideration is also given to the market for the property appraised. Appraisals of properties that are typically purchased by investors (e.g. - skyscrapers) may give greater weight to the income approach, while small retail or office properties, often purchased by owner-users, may give greater weighting to the sales comparison approach. While this may seem simple, it is not always obvious. For example, apartment complexes of a given quality tend to sell at a price per apartment, and as such the sales comparison approach may be more applicable. Single family residences are most commonly valued with greatest weighting to the sales comparison approach, but if a single family dwelling is in a neighborhood where all or most of the dwellings are rental units, then some variant of the income approach may be more useful.
The cost approach
The cost approach was formerly called the summation approach. The theory is that the value of a property can be estimated by summing the land value and the depreciated value of any improvements. The value of the improvements is often referred to by the abbreviation RCNLD (reproduction cost new less depreciation or replacement cost new less depreciation). Reproduction refers to reproducing an exact replica. Replacement cost refers to the cost of building a house or other improvement which has the same utility, but using modern design, workmanship and materials. In practice, appraisers use replacement cost and then deduct a factor for any functional disutility associated with the age of the subject property.
In most instances when the cost approach is involved, the overall methodology is a hybrid of the cost and sales comparison approaches. For example, while the replacement cost to construct a building can be determined by adding the labor, material, and other costs, land values and depreciation must be derived from an analysis of comparable data.
The cost approach is considered reliable when used on newer structures, but the method tends to become less reliable for older properties. The cost approach is often the only reliable approach when dealing with special use properties (e.g. -- public assembly, marinas).
The Sales Comparison Approach
The sales comparison approach in a real estate appraisal is based primarily on the principle of substitution. This approach assumes a prudent individual will pay no more for a property than it would cost to purchase a comparable substitute property. The approach recognizes that a typical buyer will compare asking prices and seek to purchase the property that meets his or her wants and needs for the lowest cost. In developing the sales comparison approach, the state licensed real estate appraiser attempts to interpret and measure the actions of parties involved in the marketplace, including buyers, sellers, and investors.
Method of Data Collection Data are collected on recent sales of properties similar to the subject being valued, called comparables. Sources of comparable data include real estate publications, public records, buyers, seller, real estate brokers and/or agents, appraisers, and others. Important details of each comparable sale are described in the appraisal report. Since comparable sales are not always identical to the subject property, adjustments are sometimes make for date of sale, location, style, bathrooms,
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