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Using the Tax Assessor’s Database. & Other land use datasets. Background. LA County Tax Assessor’s roll Usually for purchase from Used to locate addresses Wealth of information HUGE FILE!!. Using the Behemoth. P drive: LA_Assessor Please do not make any changes directly
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Using the Tax Assessor’s Database & Other land use datasets
Background • LA County Tax Assessor’s roll • Usually for purchase from • Used to locate addresses • Wealth of information • HUGE FILE!!
Using the Behemoth • P drive: LA_Assessor • Please do not make any changes directly • When copying to another computer, must copy whole file • Access file links to the TXT tax roll • Read me file and PDF is there for reference
Open Access • Click on one of the tables (they are the same thing) • Need to get out a manageable size such as a zip code • Highlight zip code field – wait a couple minutes or so and click ESC
Filter should pop up • Text filter – begins with • Enter your 5 digit zip code • Wait for the filter to complete • Go to the last record using the arrows at the bottom • Scroll to the top – press shift and then click on top record • All records should now be selected
Right click on the table name • Export – select excel • Make sure to click export data with formatting and layout • And – export only selected records
Open file in Excel • Create a new column named “AIN” • You need to concatenate the first three fields to get to create the AIN • Drag that formula down to the end of your spreadsheet • Ready to bring into ArcGIS!
Working in ArcGIS • Make sure you have a boundary file – eg. 90024 • Add the parcel shapefile • Clip the county wide parcel shapefile to your boundary file • Join the small assessor data to the small parcel layer
Using the Land Use File • Clip the county wide to your boundary file • Dissolve your parcels so they just become an outline • Clip the boundary land use to the dissolved parcels