Coordinate system: NAD 1983 HARN StatePlane Florida North FIPS 0903 Feet
Theme keywords: Property, planningCadastre , planningCadastre
Abstract: Provides general locations of parcels in Leon County.
Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
Provides general locations of parcels in Leon County.
To provide members of the Tallahassee/Leon County GIS Interlocal group with base data to use in their maps, projects and business processes.
Use at scales 1:2,400 and smaller.
Leon County Courthouse
301 S. Monroe Street
ESRI feature type: Simple, Geometry: Polygon, Topology:
Data set has been visually inspected. All data produced strives to meet National Mapping Accuracy Standards (NMAS).
The parcel coverage was compiled as part of a seven year joint mapping project between the City of Tallahassee, the Leon County Board of County Commissioners, and the Leon County Property Appraiser's Office. The primary purpose of this project was to provide a general geographic location, shape, area, and address for every property in Leon County, Florida. A contract to convert the existing Mylar tax maps to digital form was awarded to Geonex in 1992. The key components of the conversion approach were to use existing tax maps and reference parcel boundaries to the existing planimetric base (base8891). The rights of ways were compiled first from existing sources on top of the planimetric base. Subdivision boundaries were then compiled and registered to the land base. Finally acreage parcels and subdivision lots were compiled and registered to the land base. The conversion process was completed in 1994. The parcel data was QC'd upon arrival but staff and resources were inadequate. A second comprehensive QC effort to update the parcel data from 1992 and add additional features and annotation classes was begun in 1995 and completed in 1999. Existing line work was checked against the base 8891 planimetric data. New parcels were compiled using the Legal Descriptions of a property, the Property Appraisers Tax Maps in Mylar format, and base8891 planimetric data. Digital Ortho photography was acquired by Tallahassee-Leon County GIS in January 1996, and new planimetric data sets were compiled using photogrammetric methods during the 1996 Tallahassee-Leon County GIS Land Base Update Project. This data became available to the QC effort in 1997. The Ortho photography and updated planimetrics provided additional information to aid in registering the parcels to the land base during the final years of the QC project. After completion of the parcel conversion a project was begun to capture easements. Sources for easements were records from Growth Management, City and County Public Works, and the Property Appraisers office. Every description for a Property has a Point of Commencement (P.C.) and/or Point of Beginning (POB) which provides the starting point of the survey. In the Parcel Mapping project, the geographic location of these starting points were estimated using existing line work or features visible in the Aerial Photography. The outline of the parcel was then generated using the Bearings and Distances presented in the Legal Description and Arc/Info Coordinate Geometry (COGO) Software. Property corners were then adjusted so to minimize overlap of property lines with buildings or adjacent properties. Fence lines, buildings, road edge-of-pavement, and other information visible in the aerial photography were used in this adjustment process. This adjustment was not possible in areas of heavy tree canopy. The data is now being maintained by the Leon County Property Appraiser using COGO and adjusting to fit the planimetric base. Modifications to Data Layer Modifications are made to the parcel line work daily. Existing properties are subdivided and parcel id numbers changed. These changes are posted to the EDB every week. This update procedure occurs in the Property Appraisers Mapping Department. For more information on the update procedure consult the Leon County Property Appraiser's Parcel Maintenance Standards Manual. Supplemental_Information 1. Horizontal Positional Error: Points of Beginnings and/or Points of Commencement for the Legal Descriptions of Properties in Leon County were estimated due to the lack of X,Y coordinate data for Public Land Survey System section corners and other monuments. Experience has shown that the horizontal positional error in the parcel line work can vary from within 10 feet to as high as 500 Feet in rural areas of the County. This error will be apparent visually when building footprints mapped during the 1996 Land Base Update Project overlap property lines in the parcel coverage. Users of the parcel coverage must understand that the property lines shown in the coverage are a graphic representation of a property and are not intended to represent a boundary survey. Users requiring definitive boundary information must consult a Professional Land Surveyor licensed in the State of Florida. 2. Multiple Non-Adjacent Areas per Taxid: As a business practice, the Leon County Property Appraiser's Office often assigns a single Taxid for multiple non-adjacent, non-contiguous areas. Tallahassee-Leon County GIS uses the Arc/Info Region feature class in the Parcel Coverage because of these situations. As of September 7, 1999, there were 92,242 Regions in the Region.Parcel feature class. 1027 or 1.1% of these Regions contained greater than or equal to 2 Polygons per region (This statistic was computed using the ArcView Avenue script "regionpolycount.ave" found on the EDB under /edb/apps/avapps/parcelchk). The maximum number of Polygons per a Region in the Parcel Coverage is Taxid "110250 0036" (Killearn Properties Bridal Paths) with 38 polygons for this region. 3. Invalid Multiple Non-Adjacent Areas per Region: Parcel regions exist in the Parcel Coverage that are incorrectly composed of multiple non-adjacent areas (polygons). It has been observed that these areas can be separated from 1000 up to 5000 ft. The user will encounter these regions when assigning attributes to groups of parcels. The user will select a group of parcels and a parcel will be shown as selected that is out of the user defined area. The ArcView script "parcelpolychk.ave" found on the EDB under /edb/apps/avapps/parcelchk can be used to assist in finding possible invalid regions. 4. Multiple Regions for an Area: In a few situations, there are multiple regions for a given area. An example are the Regions for Florida State University. Taxids "21-35-20-901-0000", -0001, -0002, -0003, and -0004. The FSU campus area (approximately 275 acres) is thus duplicated in the Parcel Coverage five times. These extra regions should be removed before performing any area comparisons.
Internal feature number.
13 character string that can contain characters (A,B,C, etc.). and embedded blanks. The first two characters of taxid are the township code. This code indicates the township and range in which the property is located. The next two characters indicate the section number. The next two characters are the subdivision number. Numbers less than 20 indicate unrecorded subdivisions in that section. The number 20 indicates parcels described by metes and bounds (not referring to any lot or block). Numbers greater than 20 indicate a recorded subdivision in that section. The next three characters have two uses. They are either the subdivision block number or the acreage parcel number. In use as a block number it may show either alpha characters (such as A) or numeric characters (such as 002 for block 2). If no block characters are used three zeroes will appear (000). If no block characters appear it is a special use lot. In use as an acreage parcel number the following system is employed: 001- 199 for parcel in NE 1/4, 201-399 for parcel in NW 1/4, 401-499 for parcel in SE 1/4, 601-799 for parcel in SW 1/4, 801-849 for city or county property, 850-899 for County School Board property, 901-999 for state or federal property. The last four characters are the subdivision lot number. These are in increments of ten (0010 is lot 1) to allow for split outs. (0011 would be lot number 1, sub lot 1) Four Zeros indicates the parcel is acreage.
The last person to edit the data
Length of feature in internal units.
Area of feature in internal units squared.
Leon County Courthouse
301 S. Monroe Street