IAAO Research Exchange
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Building a 3D GIS Model from PDF Floorplans
No full textThe need for more development space resulting from urbanization and increased housing density has resulted in the necessity to reimagine the use of space above and below ground level with complex infrastructures. We discuss the challenges of building 3D models to reflect these complexities, the need to standardize 3D data definitions, and the use of ESRI\u27s multipatch feature to build 3D models
Maricopa County Multifamily Valuation Part 2 - Case Study
No full textThis session presents a case study on multi-family property valuation in Maricopa County, focusing on key factors like market trends and income potential. Participants will gain practical insights into appraising apartment complexes and understanding valuation and assessment concerns
A Panel Discussion on Key Updates to the IAAO Standard on Ratio Studies
No full textCome join us for a panel discussion where we will review the highlights of the updated exposure draft of the Standard on Ratio Studies. The IAAO Research and Standards Committee has been busy updating this critical guidance and we\u27re excited to share some key revisions with you
AI vs. Multiplicative Regression: Which Model Delivers Better Results?
No full textAI-hype or reality? Uncover the truth behind advanced AI models in property assessment. Assessment offices have always strived for accuracy in their real property models. But is the investment in cutting-edge AI models justified? Join us as we compare various model types and reveal survey results from assessment offices
Providing Circuit Breaker Relief
No full textThis presentation delves into the challenges facing Idaho\u27s Circuit Breaker Program, including legislative complications, high employee turnover, reliance on hardcopy applications, and low employee pay. It also examines the program’s complicated application process and its impact on accessibility, offering insights into potential reforms to improve efficiency and better serve vulnerable populations
Proposing a new market value proxy for vertical inequity detection
No full textThe current discussion about the detection of vertical inequity in mass valuation often ignores the important question of how to pick the best market value proxy. This presentation expands on previous research and explains this issue clearly. It uses a monte-carlo procedure based on a real-life dataset to measure how bias varies according to which market value proxy is chosen. A new, statistically-superior market value proxy will be proposed
Is there a Heisenberg Effect? Using GIS to investigate the impact of residential meth labs on nearby property values in Albuquerque, NM
No full textThis session focuses on a case study that examines the impact of a single clandestine meth lab on the values of nearby residential properties in Albuquerque, NM, utilizing GIS and spatial regression techniques. By mapping the meth lab and surrounding neighborhoods, we estimate how proximity to the site affects property values time. Attendees will also learn how to apply GIS and regression to measure the proximity effects—both positive and negative—of various factors within their local jurisdictions, emphasizing the importance of sound methodology to avoid misleading results. The goal of this session is to provide property assessors with the tools to conduct more fair, equitable, and defensible valuations for tax assessments by accurately accounting for externalities that impact residential property values
Leveraging the ArcGIS Pro Parcel Fabric
No full textIn this hands-on workshop, attendees will learn about the Parcel Fabric data model and how to extend it for their data migration. Once data is migrated, the focus will shift to common record-driven and quality-driven workflows. The Parcel Fabric is designed for any organization that manages cadastral records. Agenda: • The ArcGIS Parcel Fabric information model and how to extend it for your organization • Data migration to the Parcel Fabric • Record-driven workflows and parcel lineage • Quality-driven workflows to evaluate and improve data quality • Modern implementation patterns that use service-oriented architecture (SOA) and versioning to support • Multi-user, concurrent editing • Using and configuring Tasks for your repeatable workflows • The latest software trends and roadma
Fair + Equitable June 2025
No full textThe June 2025 issue of F+E looks at corporate home buying and potential state legislation capping home purchases by large investors. In addition, the issue also includes information on sessions and speakers at the IAAO Annual Conference, and articles on: The Preparation and Trial of the Property Tax Appeal Seminar is in July and topics for the December Legal seminar are now being accepted. Micromanagement and the negative impacts on innovation and morale. The importance of maintaining professional boundaries as a manager. New Standard on Ratio Studies: A revised and improved standard is coming soon. The Paul V. Corusy Memorial Library offers resources and assistance to IAAO members. IRRV publications available to IAAO members New designees and career opportunities.https://researchexchange.iaao.org/f-e/1028/thumbnail.jp
Don’t be a Dino: Transforming Assessments Using ValPal AI
No full textIn today\u27s fast-moving assessment landscape, adaptability isn\u27t just nice to have—it\u27s essential for survival. Discover how to harness emerging technologies and use machine learning to save your team time and money