University of Florida GeoPlan Center 20210520 Florida_Parcels_2020.gdb vector digital data Gainesville, FL University of Florida GeoPlan Center State of Florida www.fgdl.org This dataset contains the 2020 parcels dissolved by the decade of the actual year built for each respective parcel polygon within the State of Florida. Actual Year Built for each parcel polygon represents the original year that the structure / building on the property was built. Effective Year Built represents the last date which the structure / building was updated / renovated, etc. This layer is an update to the FGDL layer YB_DECADES_2018.shp This layer is the parent for Summary - Year Built (1970's), which uses the following selection: YB_DECADES.FIFTY_YEAR=3. This layer is the parent for Summary - Year Built (Before 1970), which uses the following selection: YB_DECADES.FIFTY_YEAR=1. "The data was created to serve as base information for use in GIS systems for a variety of planning and analytical purposes." Complete As needed -87.637996 -79.872530 31.042638 24.480326 None Cadastre Growth Planning Year Trends Built ISO 19115 Topic Category planningCadastre None Florida None 2020 None The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. University of Florida GeoPlan Center Kate Norris Geospatial Data Manager mailing and physical

131 Architecture Building, PO Box 115706

Gainesville FL 32611-5706 US data@fgdl.org Technical Support: https://www.geoplan.ufl.edu/ data@fgdl.org Web site: https://www.fgdl.org Florida Department of Revenue, County Property Appraisers, and the GeoPlan Center. Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 Florida Geographic Data Library: https://www.fgdl.org/ Florida Department of Revenue info: https://floridarevenue.com/property/Pages/Home.aspx GeoPlan relied on the integrity of the attribute information within the original data. This data is provided 'as is'. GeoPlan relied on the integrity of the original data layer's topology This data is provided 'as is' by GeoPlan and is complete to our knowledge. This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan Florida Department of Revenue and County Property Appraisers 20201231 County Specific 0 onLine 20201231 ground condition GeoPlan Spatial and Attribute Information GeoPlan collected and used the available 2020 parcel tax data records gathered from the State Department of Revenue (DOR) and County Property Appraisers to create the YB_DECADE_2020 shapefile. [Original Statewide Parcel Layer: Florida_Parcels_2020.gdb] Process for dissolving parcel polygons based on decade of actual year built: - For each county a new field representing Actual Year Built [AYRBLT] was populated based on the attribute table information for the following fields; ACTYRBLT and AYRB. - First [AYRBLT] was set equal to ACTYRBLT, - Next a selection set was created where [AYRBLT] = 0, these selected features were set equal to AYRB. - Also checked for data in the Effective Year Built field where ACTYRBLT = 0. - The [AYRBLT] field was then repopulated as ((Mid[AYRBLT], 1, 3) & "0") Ex. 1999 becomes 1990. - The parcel polygon boundaries were then Dissolved (as single part features) based on the combination of the CNTYNAME and AYRBLT fields. The process maintained the FIRST: FIRST_AYRBLTD and FIRST_CNTYNAME fields during this step. - The Dissolved layers were then run through the Repair Geometry Command 3x. - Next the Integrate Command GeoProcessing Function was run with a tolerance of 1m to remove redundant points, such as over-digitized vertices found throughout the layer, this function was also used to compress the file size of the layer via a relatively low degree of simplification. A tolerance equal to 1-meter was set in order to allow for a maximum offset of 1m from the original source data. To correct for topological errors created during this process the Repair Geometry Function was then run three times. - A spatial Join was then run with the Dissolved Layers and their corresponding Full County Parcel Label Points (which where dissolved on PARCELID) in order to get Parcel Count for each dissolved feature. - The [YB_DECADE] was populated as: [FIRST_AYRBLTD] & " - " & Left( [FIRST_AYRBLTD], 3 ) & "9" - The final shapefile represents polygons of parcels which structures/ buildings were originally built in the same decade. - Several other fields were added to the attribute table: [DESCRIPT] - Based on [YB_DECADE] [FGDLAQDATE] - The date FGDL acquired the original data from the Source. As well as [CNTYNAME], [SYMBOLOGY], [LAT_DD], [LONG_DD], [MGRS], [GOOGLEMAP], [ACRES], and [AUTOID]. Please Note: Tabular spatial information was derived from the feature's label point and not the feature's centroid. GeoPlan 20210520 University of Florida GeoPlan Center Kate Norris Geospatial Data Manager & Senior GIS Specialist mailing and physical

131 Architecture Building | PO Box 115706

Gainesville FL 32611-5706 US www.fgdl.org data@fgdl.org Vector GT-polygon composed of chains 2792396 NAD 1983 HARN Florida GDL Albers 24.0 31.5 -84.0 24.0 400000.0 0.0 coordinate pair 0.0001 0.0001 meter D North American 1983 HARN GRS 1980 6378137.0 298.257222101 YB_DECADES_2020 YB_DECADES_2020.DBF FDOR OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. CNTYNAME The County Name. GeoPlan Center YB_DECADE The range of the actual year builts by decades. GeoPlan Center PAR_COUNT Number of individual parcels in dissolved polygon. Please Note: Some Multi-part Parcels have been split during the Single Part Dissolve process, for those polygons there will be only one record for the actual parcel count, which will result in a few of these features having a PARCOUNT = 0. One Example would be a Multi-part Parcel which contains two separate polygons split by a road, there is only one centroid created for the count field, so one of the halves will have a PARCOUNT = 1 while the other will have a PARCOUNT = 0. Since there isn't that many Multi-part parcels this should affect less than 3% of the records. GeoPlan Center SYMBOLOGY ETDM Map Symbology. GeoPlan Center 1 Actual Year Built - Pre 1970 GeoPlan Center 2 Actual Year Built - Post 1970 GeoPlan Center 9 PARCELS WITH NO VALUES GeoPlan Center LAT_DD Latitude in decimal degrees. GeoPlan Center LONG_DD Longitude in decimal degrees. GeoPlan Center MGRS Military Grid Reference System (MGRS) Coordinate of the Facility. The MGRS is the geocoordinate standard used by NATO militaries for locating points on the earth. The MGRS provides a means to represent any location on the surface of the Earth using an alphanumeric string. Hierarchical references are based on the Universal Transverse Mercator (UTM) coordinate system. The MGRS is used for the entire earth. http://mgrs-data.org/ GeoPlan Center GOOGLEMAP Webpage hyperlink to location in Google Maps. GeoPlan Center ACRES Number of Acres. GeoPlan Center DESCRIPT Based on YB_DECADE. GeoPlan Center FGDLAQDATE The date FGDL acquired the data from the source. GeoPlan Center AUTOID Unique ID added by GeoPlan GeoPlan Center SHAPE.AREA SHAPE.LEN Florida Geographic Data Library (FGDL) mailing

131 Architecture, PO Box 115706

Gainesville Florida 32611-5706 US data@fgdl.org FGDL Source Data Links: http://www.geoplan.ufl.edu/fgdl_source_links.htm General Information About FGDL: http://www.fgdl.org/metadataexplorer/help.html FGDL Metadata Information: http://www.fgdl.org/metadataexplorer/metadata.html FGDL Mailing list: http://www.fgdl.org/metadataexplorer/updates.html FGDL Frequently Asked Questions: http://www.fgdl.org/metadataexplorer/fgdlfaq.html Web site: http://www.fgdl.org DOWNLOADABLE DATA The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. www.fgdl.org DOWNLOADABLE DATA 20200101 20210610 University of Florida GeoPlan Center Kate Norris Geospatial Data Manager mailing and physical

131 Architecture Building, PO Box 115706

Gainesville FL 32611-5706 US data@fgdl.org data@fgdl.org www.fgdl.org FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time