Welcome to the 2026 GIS in Action Annual Conference hosted by the Oregon & SW Washington Chapter of the Geospatial Professional Network & Cascadia ASPRS.
Multnomah County's Division of Assessment, Recording and Taxation is re-imagining its Residential Reappraisal Program. This program, designed to support accurate property value assessments and fair taxation, involves county appraisers inspecting properties (from the sidewalk) to verify and collect data on land and improvements.
To execute this work efficiently, the County selected ArcGIS Survey123 for field data collection. With support from GIS staff, a pilot project covering nearly 2,000 properties is approaching completion. This pilot uses a Survey123 form built on an existing feature service, which includes related child (i.e. land and buildings) and grandchild (i.e. building components and value adjustments) data with one-to-many relationships. This setup allows appraisers to view, edit, and add to the existing Computer-Assisted Mass Appraisal (CAMA) data while in the field.
In addition to Survey123 development, attendees will also hear about associated:
Quality assurance/quality control (QA/QC) processes Workflow management and progress tracking tools developed using ArcGIS Experience Builder and Dashboards Strategies for database integration
