Assessor Paul D. Petersen

Maricopa County Assessor's Office

Secured Master Data (Tabular only)

All data and associated costs were approved by the Maricopa County Board of Supervisors on January 16, 2008.

All data will be provided in an ASCII format (.dat) on CD-ROM Disks and includes entire County. Should the requested data file size be small enough, the data may be e-mailed.

The Secured Master Data may be joined with the Assessor's GIS Data using the APN as the key-join field. The following briefly describes each data set:

  • Secured Master

    All detail information regarding parcel including owner, property address, legal description, legal classes, valuation and others. (ST42060)
    File Layout Example (DOC) | Sample (DAT)

  • Residential Master

    All detail residential component information used to calculate values (i.e., livable square footage, construction year, etc).
    File Layout Example (XLS) | Sample (DAT)

  • Commercial Master, Base

    All detail commercial component information used to calculate values (i.e., square footage, construction year, and type of building).
    File Layout Example (DOCX) | Sample (DAT)

  • Commercial Master, Full

    Contains detailed commercial components, based on the type of commercial property as captured by appraisers. Include roofing type, wall types, building square footage, heating, AC, electrical, insulation and others.
    File Layout Example (XLS) | Sample (DAT)

  • Subdivision Index

    Contains all information regarding subdivisions including MCR number, parcel ranges and date recorded.
    File Layout Example (DOC) | Sample (DAT)

  • Notice of Change

    Contains parcels scheduled to be mailed for the Notice of Change. Includes the parcel number, owner and value.
    File Layout Example (XLS) | Sample (DAT)

  • Notice of Value

    Contains all parcels scheduled to get an annual valuation notice. Includes the parcel number, owner and value.
    File Layout Example (XLS) | Sample (DAT)

  • Notice of Error

    Contains all parcels scheduled for a notice of proposed correction, which is mailed in August. Includes parcel number, owner and value.
    File Layout Example (XLS) | Sample (DAT) - Coming Soon!

  • Land Components

    All detail land component information used to calculate values (i.e. location factors, topography, flood, etc).
    File Layout Example (DOC) | Sample (DAT)

  • Personal Property

    Contains business personal property data, including name of business, location of business and valuation.
    File Layout Example (XLS) | Sample (DAT) - Coming Soon!

  • Parcel History

    Contains narrative information regarding changes to parcels, includes the date, tax year and narrative of the changes.
    File Layout Example (XLS) | Sample (DAT) - Coming Soon!

  • Sales Affidavits

    Contains sales data from sales affidavits submitted to Recorder’s Office, includes parcel number, grantor, grantee, sales date, and sales price.
    File Layout Example (DOC) | Sample (DAT)

  • Apartment Master

    Contains specific information regarding apartments including duplex, triplex and four-plex properties, includes parcel number, number of units, complex name with associated information.
    File Layout Example (DOC) | Sample (DAT)

  • Rental Registration

    Contains a listing of residential rental properties registered with the Assessor’s Office, includes owner name, address, property address and agent information.
    File Layout Example (XLS) | Sample (DAT) - Coming Soon!

Data Prices

Non-Commercial Requests
Secured Master (Prelim. or Final) (ST42060) $200.00
Residential Master (ST42030) $100.00
Commercial Master – Base (ST42082) $100.00
Commercial Master – Full (ST42090) $100.00
Subdivision Index (ST42020) $65.00
Notice of Change (ST23072R) $65.00
Notice of Value (ST23070R) $120.00
Notice of Errors (ST42066) $65.00
Land Components (ST42067) $100.00
Personal Property (UB30056) $65.00
Parcel History (ST42105) $100.00
Sales Affidavits (ST42025) $100.00
Apartment Master (ST42100) $100.00
Commercial Requests
Secured Master (Prelim. or Final) (ST42060) $800.00
Residential Master (ST42030) $350.00
Commercial Master – Base (ST42082) $350.00
Commercial Master – Full (ST42090) $350.00
Subdivision Index (ST42020) $300.00
Notice of Change (ST23072R) $300.00
Notice of Value (ST23070R) $500.00
Notice of Errors (ST42066) $300.00
Land Components (ST42067) $350.00
Personal Property (UB30056) $300.00
Parcel History (ST42105) $450.00
Sales Affidavits (ST42025) $400.00
Apartment Master (ST42100) $350.00
Rental Registration (ST42005) $425.00
By Assessor Book Series, Zip Code, or Township

All data and associated costs were approved by the Maricopa County Board of Supervisors on January 16, 2008.

All data will be provided in an ASCII format (.dat) on CD-ROM Disks and includes entire County. Should the requested data file size be small enough, the data may be e-mailed.

The Secured Master Data may be joined with the Assessor’s GIS Data using the APN as the key-join field. The following briefly describes each data set:

Non-Commercial and Commercial

Basic Secured Master Data Set

This is a subset of the standard secured master and includes basic data elements. The fields included are parcel numbers, owner name/address, property address and type of property. Includes shape files.

  • (ST42070)
  • (ST42071)

$100.00 per:

  • Book
  • Zip Code

Enhanced Secured Master Data Set

This is a more detailed subset of the standard secured master and includes a limited number of data elements. The fields included are parcel numbers, owner name/address, property address, type of property, deed information, valuation, property use code, legal class, and rental indicator. Includes shape files.

  • (ST42073)
  • (ST42074)

$200.00 per:

  • Book
  • Zip Code

Premium Secured Master Data Set

This is the most detailed subset of data offered from the standard secured master. The fields included are parcel numbers, owner name/address, type of property, deed information, valuation, rental indicator, basic component data and sales information. This set also includes Basic improvement components of livable square footage, land size, pool size, and construction year. Includes shape files.

  • (ST42076)
  • (ST42077)

$300.00 per:

  • Book
  • Zip Code
Microfiche Data
Secured Master (SM42015) $2,000.00
Commercial Master (SM42060) $1,000.00
Notice of Value (Postcards) (SM23005) $1,000.00
Notice of Change (SM23006) $200.00