Parcels Grouped / Aggregate

Abstract

The Parcels Aggregate data set consists of real property parcel polygons that have been aggregated by either owner name or last sale transaction. There are three layers that comprise this data set.

1. Parcel Owners Grouped Disaggregate
2. Parcel Owner Grouped
3. Parcel Sales Grouped

Parcel Owners Grouped Disaggregate represents parcels greater than 9 acres that are grouped together by owner name. Only contiguous parcels form a group. For example, XYZ Paper Company owns 100 parcels in Taylor County and there are 5 groups of parcels that share borders.

Parcel Owners Grouped represents parcels greater than 9 acres that are grouped together by owner name. All parcels owned by the same owner form one group within a county. For example, XYZ Paper Company owns 100 parcels in Taylor County and there are 5 groups of parcels that share borders, but all 5 groups are treated as one group across the county.

Parcel Sales Grouped represents parcels greater than 9 acres that are grouped together by sale transaction, e.g. book/page or document number.

Refer to the parcels metadata for information about parcel data.

Purpose

The purpose of the grouped parcels layers is to quickly visualize large parcel owners and sale transactions where there may be multiple parcels involved but are treated as one.

The purpose of parcel maps and data is tax assessment of real property. Each county in Florida elects a Property Appraiser to oversee the assessment of all real property parcels within the county.

Time Period of Content

Most data current within one month. A few appraisers lag behind and can be months old.

Publish Date

On-going

Originator

County Property Appraisers, MapWise Inc.

Publisher

MapWise Inc.

Theme Keywords

parcels, real property, land use, assessed value, property sales

Place Keywords

Florida counties: Alachua, Baker, Bay, Bradford, Brevard, Broward, Calhoun, Charlotte, Citrus, Clay, Collier, Columbia, DeSoto, Dixie, Duval, Escambia, Flagler, Franklin, Gadsden, Gilchrist, Glades, Gulf, Hamilton, Hardee, Hendry, Hernando, Highlands, Hillsborough, Indian River, Jackson, Jefferson, Lafayette, Lake, Lee, Leon, Levy, Liberty, Manatee, Marion, Martin, Miami-Dade, Monroe, Holmes, Madison, Nassau, Okaloosa, Okeechobee, Orange, Osceola, Palm Beach, Pasco, Pinellas, Polk, Putnam, Santa Rosa, Sarasota, Seminole, St Johns, St Lucie, Sumter, Suwannee, Taylor, Union, Wakulla, Walton, Washington, Volusia

Source Scale

Varies: 1:1,200 to 1:3,600

Horizontal Accuracy

Horizontal accuracy varies between counties and between areas within a county. In general, in urban areas, parcel boundary accuracy is approximately +/- 5 feet. In rural areas, or older linework without modern spatial adjustment, accuracy can be +/- 100 feet or more.

Process Steps

MapWise collects GIS parcel data and tax roll data from all 67 Property Appraisers in Florida, and standardizes the data to a common format. A custom algorithm is used to group parcels together.

Projection

State-wide seamless data - Florida Albers HARN

Individual counties - native source data projection.

Field Names

Sales Grouped

Owners Grouped