Tax Administration's Real Estate - Legal Data

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This table contains the legal description information including legal address (site address), deeded land area, and tax district for properties within Fairfax County. There is a one to one relationship to the parcels data. Refer to this document for descriptions of the data in the table.

Tax Administration's Real Estate - Land Data

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This table contains the information about the land including land sizes (square feet & acres) and land property type for properties within Fairfax County. There is a one to many relationship to the parcel data. Refer to this document for descriptions of the data in the table.

Tax Administration's Real Estate - Commercial Data

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This table contains information about commercial properties including number of stories, elevators, exterior wall type, floor type and roof type for commercial properties within Fairfax County. There is a one to many relationship to the parcel data. Refer to this document for descriptions of the data in the table.

Tax Administration's Real Estate - Dwelling Addition Data

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This table contains information about additions to the structures such as patios, decks, porches, etc. for properties within Fairfax County. There is a one to many relationship to the parcel data. Refer to this document for descriptions of the data in the table.

Market Sale Ratio

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Residential market value estimates and most recent sales values for owned properties at a parcel level within Fairfax County as of the VALID_TO date in the attribute table. For methodology and a data dictionary please view the IPLS data dictionary

Current Housing Units

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Current housing units at a parcel level within Fairfax County as of the VALID_TO date in the attribute table. For methodology and a data dictionary please view the IPLS data dictionary

Nonresidential Gross Floor Area

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Nonresidential gross floor area at a parcel level within Fairfax County as of the VALID_TO date in the attribute table. Information for tax-exempt institutional properties is incomplete. For methodology and a data dictionary please view the IPLS data dictionary

Maryland Real Property Assessments: Fields Reference

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This dataset is a supplement to the statewide dataset of Real Property Assessments, at https://opendata.maryland.gov/d/ed4q-f8tm, which shows all properties in the state and assessment data from SDAT and MDP.

Planning Areas

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The four planning areas in Fairfax County. Each area is a part of the overall County comprehensive plan.

2020 Property Tax Roll

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This dataset contains property tax information for the calendar year 2019. Taxes are calculated from property values, and billed in Fiscal Year 2020, which runs from July 1, 2020 to June 30, 2021. The properties include Residential, Commercial and Publicly Held parcels and structures.