Validator: Underwriting homes with double confidence
2023 | Sole designer
OVERVIEW
In H2 2023, I led the visioning and design for a series of projects aimed at improving Opendoor’s home data quality. One key initiative was Validator, a centralized data validation tool which also improved operator efficiency and satisfaction.
The introduction of this tool and related processes helped Opendoor to realize a 40% core data error reduction since its launch in late 2023.

In order to effectively price home and adjust acquisition and resale strategies, Opendoor needs accurate home data for the homes we have bought or are considering to buy.
Despite various touch points in which sellers and Opendoor can update home data, we historically had key home attributes wrong on 10-20% of homes.
THE CHALLENGE
PROJECT GOAL
Design a scalable data validation tool so that our data annotators can more effectively verify key home attributes.
While most of the data processes were automated, one of the most important part of ensuring quality data still required human validation. This group of users will gather evidence and data from various sources, closely examine them, and ‘put a final stamp’ on our home data before it’s consumed by downstream workflows.
OUR KEY USERS
Throughout the customer and home journey, our data evolves not in a linear fashion, but rather in iterative cycles.
As home process continues, or when feedback occurs, additional data gathering might be required, kicking off another cycle.
KEY PROBLEMS
With the understanding of key JsTBD and an improved mapping of data fields and references, I started to refine the overall process for how Data Annotators will perform their validation task.
REFINING WORKFLOW
Final Product
Validator - a new data validation tool that streamlines data presentation from various sources, and allows users to effectively determine the truth attributes and conditions of the home.
Enforce capturing of additional context for data issues
Additional assets for reference just one click away
Recap all data changes in one screen to minimize errors
IMPACT
Since full launch in Sep, 2023, Validator and its adjacent process changes helped reduce core home data error rate by 40%.
The subsequent visioning exercise following this project led to the identification of several future capabilities and process changes needed to improve data quality, which became one of the biggest focuses for Opendoor Internal Systems Org in 2024.