Assessor Paul D. Petersen

Maricopa County Assessor's Office

News for 2010

Assessor's Glendale Office to Close in Anticipation of Consolidation

Phoenix --- The Glendale branch (Northwest Office) of the Maricopa County Assessor's Office will officially close as of October 15, 2010. This is the first of the remaining four field offices that the Maricopa County Assessor is closing as a result of the consolidation project being implemented by assessor Keith Russell. All employees at the Glendale office are re-locating to the main office of the assessor in downtown Phoenix.

The consolidation project is part of the Assessor's response to a reduction in public expenditures and in an effort to be sensitive to budgetary concerns. The Maricopa County Board of Supervisors has approved the Assessor's request to renovate the historic Santa Fe Freight Depot in downtown Phoenix; a building owned by Maricopa County but which has sat vacant and unused for decades to consolidate operations.

The Maricopa County Assessor's office will continue to have a presence in the northwest county in Sun City through its liaison there.

View the press release (PDF).

Voices For Education Presentation

View the Voices for Education presentation (PDF).

Assessor Keith Russell Receives National Recognition

Phoenix --- Maricopa County Assessor, Keith Russell's office received two Achievement Awards from the National Association of Counties (NACo).

Since 1970, NACo's Annual Achievement Award Program has recognized unique and innovative county programs which contribute to, and enhance county government.

The first Achievement Award was presented in recognition of the Maricopa County Assessor's Appeals Management and Automation Project.

In previous years the Assessor has manually processed as many as 26,000 paper based appeals, each one requiring an individual file folder and physical transportation to appropriate divisions. This process was not only cumbersome but very labor intensive.

In partnership with the Maricopa County Office of Enterprise Technology, the Assessor's office modernized the appeal process into an Electronic Document Management Software (EDMS) system. This EDMS system utilizes electronic folders to route documents to the appropriate division for processing. It has streamlined the workflow, provided better visibility of staff workload, and is now in alignment with the Maricopa County Green initiative by eliminating the need to print paper documents.

The second Achievement Award recognized the Assessor's GIS Parcel and Zoning Recertification Project.

The objective of this project was to align all county GIS mapping layers to provide for accurate alignment with GDACS. The project team systematically divided 9,200 plus square miles of the county into grids, aligned the data, quality assured the grids and replaced its existing layers with new, more accurate data, which was then distributed and made available to all county agencies through network systems and data servers.

In addition, the increased accuracy of the mapping data that this project provided to the Assessor's Interactive Maps website was the most impacted as this site receives over two million requests for data monthly, with an average amount of 791 gigabytes of data transferred.

View the press release (PDF).

Discontinuation of Accelerated Property Splits and New Subdivisions


Effective August 1, 2010

Discontinuation of Accelerated Property Splits and New Subdivisions

In 2004, to better serve the citizens of Maricopa County, the Maricopa County Assessor's Office implemented a free service to accelerate Property Splits and new Subdivisions with accurate and prompt assignment of new Assessor Parcel Numbers (APN's).

This service was implemented to meet the high demand of rapid development within the County for the purposes of obtaining construction and building permits. Strict deed and plot plan criteria were required in order to complete the service and issue new APN's.

With the down turn in land development in the recent years, the Assessor Office has seen a drastic decline in requests for which the service was originally created and a greater deviation from its original purpose. The demands to better steward our diminishing resources coupled with our abilities to provide the normal business splits and subdivision functions within a four week time frame, has prompted this Office to discontinue the service.

On August 1st 2010 the Maricopa County Assessor's Office will discontinue the free service to Accelerate Property Splits and new Subdivisions.

Although we are discontinuing this service, we are committed to provide optimal service. This Office will review cases with compelling circumstances on a case by case basis, and within resource capabilities.

If you have any concerns, please feel free to contact GIS Support at 602-506-8724, extension #4 (Splits/Combine or Title problems).

View the press release (PDF).

Commercial Components Online

Commercial Components now online for public research and viewing

In an effort to increase transparency in government provide full and accurate information to the general public, Maricopa County Assessor Keith E. Russell has directed that cost definitions and commercial property characteristics appear on his website. This is the first time this type of information have been available online. "It is my hope that through this implementation, the public and commercial property owners will become more educated about their cost definitions through our website updates," said Mr. Russell.

Below are the new cost definitions that have been added to the website:

  • Imp #: Is a six digit number that identifies a specific building or site improvements. The first four digits ndicate the # assigned to the improvement. Note: there may be multiple buildings (improvements) on a parcel. The last two digits indicate the section of the building. Note: a building may be divided into different sections based on use and/or design.
  • Model: Is a four digit number that describes the type of building and provides a quality indicator. The first two digits are an indicator of the buildings initial design (i.e. warehouse). The third digit describes the specific type of building (i.e. "storage" warehouse). The fourth digit is a quality indicator. The range is generally 1 to 5 with the higher number being better quality.
  • Qual Rank: Describes the overall quality of the improvement. F= fair; A = average; G = good.
  • CCI: Is the Construction Class Indicator and generally describes the building's construction. Class A = structural steel frame; Class B = reinforced concrete frame; Class C = concrete load bearing walls; Class D = wood or steel stud bearing walls; Class S = pre ­engineered steel buildings.
  • Improvement Description: Provides a general description of the Improvement's initial design/use (i.e. warehouse, drugstore, auto repair, etc.)
  • Eff Age - Effective Age: Indicates the actual age of construction or an age based on the condition and utility of the improvement.
  • Imp Sq. Ft.: Gross square footage of the improvement.

View the press release (PDF).

Phoenix Association of Realtors Presentation

View the Phoenix Association of Realtors presentation (PDF) to see detailed information on:

  • Nationwide Top Ten Counties Listed By Population
  • 2010 Tax Roll Timeline
  • Growth in Real Property Parcels & Appeals
  • Maintenance in personal Property Accounts and Appeals
  • Growth in Litigation Cases & Hours Worked
  • 2011 Tax Roll Timeline
  • 2010 and 2011 Tax Year Comparison
  • Historical FCV Comparison
  • and more...

2011 Notice of Valuation - Press Release

All types of property in Maricopa see double-digit declines

Phoenix --- On February 12, 2010, the Maricopa County Assessor's Office will send out over 1.5 million 2011 tax year valuation notices to all property owners in Maricopa County. This year, for the first time in decades, all property types will show doubledigit declines in their median values.

The biggest change occurring for the 2011 assessment was in vacant land values with a 36.49 percent drop. The second largest change was in apartments with a decrease of 33.75 percent, then we see a 27.78 percent drop in condominium values, a 24.48 percent decline in commercial, a 24.10 percent reduction in mobile units, and single family residential values fell 15.20 percent. It should be noted that single family residential units are seeing their third straight year of decline.

"It is the goal of my office to accurately and fairly value all property types in Maricopa County in conformance with state statutes", said Maricopa County Assessor Keith Russell. "We are aware of the declining values experienced by property owners over the past year, and the notices property owners will receive in their mailboxes definitely reflect these changes" said Russell.

Assessor Russell reminds all property owners who receive a valuation notice to look carefully at the information contained in the notice. If a property owner wants to appeal, they need to note the administrative appeal deadline. This year, the deadline is April 13, 2010 (by statute, this is 60 days from the mail date).

In an effort to meet statutory obligations in a cost effective manner, the format of the Notice of Value has changed. Previously, the property valuation notices from the Maricopa County Assessor were printed on 8-1/2'' x 14'' paper, and included additional inserts. This year, the Assessor's Office eliminated the inserts and reduced the notice to a quad-fold 8-1/2" x 11" page that saved 40 percent on printing and production costs.

County Assessor Russell's 2011 Notice of Valuation Note (PDF)

2011 Single Family Residential by City (PDF)

Map (PDF)

2011 Single Family Residential by Zip (PDF)

Map (PDF)

2011 Commercial by City (PDF)

Map (PDF)

View the 2011 Notice of Valuation press release (PDF).