In the United States, the most common usage relates to real estate and personal property appraisals, while the term is often used to describe a person specially appointed by a judicial or quasi-judicial authority to put a valuation on property, e.g. on the items of an inventory of the Tangible Property of an Estate (IRS law) of a deceased person or on land taken for public purposes by the right of eminent domain. Appraisers of imported goods and boards of general appraisers have extensive functions in administering the customs laws of the United States. Merchant appraisers are sometimes appointed temporarily under the revenue laws to value where there is no resident appraiser without holding the office of appraiser (U.S. Rev. Stats. § 2609).[1]

Although appraisers and assessors of real estate work in offices, they may spend a large part of their time conducting site visits to assess properties. Time spent away from the office depends on the specialty. For example, residential appraisers tend to spend less time on office work than commercial appraisers, who might spend up to several weeks analyzing information and writing reports on one property. Appraisers who work for banks and mortgage companies generally spend most of their time inside the office, making site visits only when necessary.
Land and improvements are treated separately. German GAVP assumes that the land can be used indefinitely, but the buildings have a limited lifespan; This coincides with the balancing of the assets. The value of the land is determined by the sales comparison approach in both the income and cost approaches, using the data accumulated by the Gutachterausschuss which is then added to the building value.
In the UK, real estate appraisal is known as property valuation and a real estate appraiser is a land valuer or property valuer (usually a qualified chartered surveyor who specializes in property valuation).[15] Property valuation in the UK is regulated by the Royal Institution of Chartered Surveyors (RICS), a professional body encompassing all of the building and property-related professions. The RICS professional guidelines for valuers are published in what is commonly known as the Red Book. The 2011 version was the RICS Valuation Standards 7th Edition (2 May 2011), superseding an edition published in 2007 with later amendments. The RICS Valuation Standards contains mandatory rules, best practice guidance and related commentary. Changes to the standards are approved by the RICS Valuation Professional Group Board, and the Red Book is updated accordingly on a regular basis. While based in the UK, RICS is a global organization and has become very active in the United States in recent years through its affiliation with the Counselors of Real Estate, a division of the National Association of Realtors.
The cost approach was once 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 (for "reproduction/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 almost always use replacement cost and then deduct a factor for any functional dis-utility associated with the age of the subject property. An exception to the general rule of using the replacement cost is for some insurance value appraisals. In those cases, reproduction of the exact asset after a destructive event like a fire is the goal.

Incumbent Property Appraiser Pam Dubov is retiring after eight years in office. Elected in the wake of a scandal, she has provided steady leadership and sound service to the public. The office faces new challenges with her departure, including more impending retirements of senior staffers with institutional memory. The office also needs to upgrade both the software it uses to appraise Pinellas properties and the website that serves as the public portal.

Appraisals can be assigned to nearly any item, including real estate. Appraisals are conducted by individuals called appraisers. Appraisers are educated in a variety of market valuation methods and are recognized by a regulatory authority as being capable of issuing an accurate valuation. For instance, an appraisal on an antique will take into account such variables as age, condition, origin, and availability of authenticating documentation.

Twitty, 49, brings a wealth of knowledge to the position. A lifelong Pinellas County resident and University of Florida graduate, he went to work for Entreken Associates, a small local appraisal firm, and eventually bought an ownership stake. Entreken later merged with other firms to form Valbridge Property Advisors, a national company handling residential and commercial appraisals and eminent domain cases. Twitty has appraised thousands of properties of varying types and holds the field's highest professional designation. As a director with Valbridge, he has extensive management experience that will be key to running a professional office that serves the public. He has a vision for modernizing the office, including creating a user-friendly, one-stop-shopping website that can generate reports on individual properties and includes zoning and land use information, tax records and other public records.
In addition, there are professional appraisal organizations, organized as private non-profit organizations that date to the Great Depression of the 1930s. One of the oldest in the United States is the American Society of Farm Managers and Rural Appraisers (ASFMRA), which was founded in 1929.[28] Others were founded as needed and the opportunity arose in specialized fields, such as the Appraisal Institute (AI) and the American Society of Appraisers (ASA) founded in the 1930s, the International Right of Way Association and the National Association of Realtors which were founded after World War II. These organizations all existed to establish and enforce standards, but their influence waned with increasing government regulation. In March 2007, three of these organizations (ASFMRA, ASA, and AI) announced an agreement in principle to merge. NAIFA (National Association of Independent Fee Appraisers), a charter member of The Appraisal Foundation, helped to write Title XI, the Real Estate Appraisal Reform Amendments. It was founded in 1961.
The technical details of practice of real estate valuers in Russia are aligned with the international pattern. Members of the Russian Society of Appraisers formerly were bound by the observance of the International Valuation Standards. There also exists a set of 14 general-purpose government-developed "Federal Valuation Standards" (FSOs 1,2,3 --are the general valuation standards first adopted in 2007 (and revised 2015) and covering Terms of engagement and Valuation report content requirements, FSOs 7-11 are asset-specific standards adopted in 2015, while FSO 9 is currently the only purpose-specific standard in the set dealing with valuations of property for loan security purposes; the last two FSO standards adopted in 2016 cover determination of investment and liquidation values, however, they do not touch on the methodology for determining these values, only scraping the reporting requirements). In view of the international conformity drive in the latest round of FSO standards setting, general requirements in the new FSO standards are close to those in the International Valuation standards set, however they can be more specific on occasion and mandate compulsory disclosure of uncertainty in valuation reports using the interval/range format.
"Blockchain will transform the real estate industry. There's no doubt about it, and the earlier entities get on board, the more they stand to gain in terms of security and efficiency," said Tony Franco, CEO of SafeChain. "Starting with something as relatively straightforward as property transfers, blockchain creates a decentralized, near-perfect audit trail that can never be lost or stolen. Eliminating that risk opens the door to completely changing how properties are bought and sold in the U.S., and those changes will ultimately be to the consumer's benefit, as well as the real estate industry's as well."  

While the Uniform Standards of Professional Appraisal Practice (USPAP) has always required appraisers to identify the scope of work needed to produce credible results, it became clear in recent years[when?] that appraisers did not fully understand the process for developing this adequately. In formulating the scope of work for a credible appraisal, the concept of a limited versus complete appraisal and the use of the Departure Rule caused confusion to clients, appraisers, and appraisal reviewers. In order to deal with this, USPAP was updated in 2006 with what came to be known as the Scope of Work Project. Following this, USPAP eliminated both the Departure Rule and the concept of a limited appraisal, and a new Scope of Work rule was created. In this, appraisers were to identify six key parts of the appraisal problem at the beginning of each assignment:
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