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. For more information regarding scale and accuracy, see our webpage at: <http://geoplan.ufl.edu/education.html>
NAME AYRBLTMAX AYRBLTMIN ALACHUA 1993 1900 BAKER 1993 1900 BAY 2005 1796 BRADFORD 1992 1900 BREVARD 1992 1875 BROWARD 1997 1900 CALHOUN 2005 1877 CHARLOTTE 2003 1900 CITRUS - - CLAY 2005 1877 COLLIER 1992 1900 COLUMBIA 1995 1900 DESOTO 1992 1900 DIXIE 1999 1900 DUVAL 2000 1863 ESCAMBIA 1992 1901 FLAGLER 1991 1900 FRANKLIN 2004 1900 GADSDEN 2005 1823 GILCHRIST 1991 1900 GLADES 1992 1900 GULF 2005 1900 HAMILTON 1991 1900 HARDEE 2004 1890 HENDRY 1993 1910 HERNANDO 2003 1849 HIGHLANDS - - HILLSBOROUGH 2005 1842 HOLMES 2004 1856 INDIANRIVER 1995 1900 JACKSON 2004 1896 JEFFERSON 2004 1855 LAFAYETTE 1991 1901 LAKE 1992 1850 LEE 1993 1900 LEON 2005 1827 LEVY 2003 1900 LIBERTY 1989 1918 MADISON 1992 1900 MANATEE 2005 1860 MARION 2003 1851 MARTIN 2005 1873 MIAMI-DADE 1991 1901 MONROE 1993 1830 NASSAU 1991 1900 OKALOOSA 1991 1901 OKEECHOBEE 1993 1910 ORANGE 2004 1879 OSCEOLA 1994 1900 PALMBEACH 1991 1900 PASCO 2004 1900 PINELLAS 1991 1901 POLK 2004 1860 PUTNAM 1993 1900 SANTAROSA - - SARASOTA 2003 1882 SEMINOLE 1993 1900 STJOHNS 1993 1792 STLUCIE 1993 1890 SUMTER - - SUWANNEE 1992 1901 TAYLOR 1992 1900 UNION 1992 1900 VOLUSIA 1993 1870 WAKULLA 2004 1900 WALTON 2005 1898 WASHINGTON - -
Process for dissolving parcel polygons based on decade of actual year built:
- For each county, FDOR tables containing the Parcel Actual Year Built data were joined to the shapefile, and a new field representing Actual Year Built [AYRBLT] was populated based on the table information.
- The parcel polygon boundaries were then Dissolved (as single part features) based on the Actual Year Built [AYRBLT] field.
- The shapefiles were then merged together based on the FDOT District that each County fell in, creating seven district wide shapefiles.
- A decade lookup table was created to represent decades between 1800 - 2005. The lookup table had 2 fields: [YEAR] for individual year between 1800-2005, and [DECADE] for unique decade identification number. The decade lookup table was then joined to the Dissolved District shapefiles.
- Another single part Dissolve was run on the shapefiles based on the decade.
- The [DECADE] field was then renamed [YB_DECADE].
- 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: [AUTOID] - A GeoPlan Center Internal Feature number [DESCRIPT] - Based on [YB_DECADE] [FGDLAQDATE] - The date FGDL acquired the original data from the Source.