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Hillside Development Overlay Zones (HDZ) Impact Areas

Layer Thumbnail Map

This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as feature count and date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive nameHillside Development Overlay Zones (HDZ) Impact Areas
File namehdzimp
Spatial domainPima County
AbstractDisplays HDZ impact areas on unincorporated parcels, as described by Chapter 18.61 of the Pima County Code Ordinances. HDZimp features are slopes of 15% or greater with selected rises and runs. Features are categorized into Definitely and Possibly HDZ polygon features.
Known errors/qualificationsIncorporated parcels and parcels owned federally or by the Tohono O’Odham Nation were excluded from analysis.
Feature typepolygon
Feature count 342,950
Thumbnail Map hdzimp.pdf PDF file format   (20,626,732 bytes, PDF created 11/28/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationPima County ITD GIS & DSD
Source contactJack Avis, Chloe Jackson
Source document or file nameTERRAIN08_10FTDEM_HYDRO and txregion
Source date20160930
Source scale 1:200
Source formatGeodatabase
Second source namePima County Development Services
Second source contactChloe Jackson
Second source document or file name
Second source date
Second source scale
Second source formatUnknown
Date of last data update
(This date may not be current.)
Last data update byJA
Date/time last touched - Meaning? 2022-11-28  12:42 AM - Enterprise GDB - Library input format
  2022-11-28  02:03 AM - Shapefile
  See coverage files, if any, for date.
On maintenance?Yes
Maintenance organizationITD_GIS
Maintenance frequencyWeekly
Maintenance descriptionScheduled job sources terrain data from ELEV geodatabase and paregion layer from GDBLIB to create the library layer.
Original conversion byChloe Jackson
Pima County ITD GIS contactJack Avis
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? No

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