Practical tools to validate data, defend values, and save time during appeals season.
Valuebase
Cleaner Data. Smarter Models.
Fairer Assessments.
Partner message shared with the IAAO community.
Hi Friend,
We started Valuebase with one simple question: How can we help assessors use the most advanced academic modeling techniques to get more accurate, equitable results?
Since launching in January 2023, we've partnered with 35 taxing jurisdictions across the U.S. and Canada. Our team includes former assessors, software engineers, and researchers. Our Head of Valuation is the former Research Valuation Manager at IAAO.
Does this sound familiar?
• Cleaning up sales manually
• Inconsistent quality grading
• Neighborhood boundaries that have not been revisited in years
• Appeals that eat up hours pulling comps and building reports
• Data gaps that quietly drive CODs higher than they should be
The Better Values Flywheel
The Better Values Flywheel: Data Validation, Data Enrichment, Modeling, Deliver and Repeat
1. Data Validation
Spot weak coverage instantly. Stop bad data before it impacts your roll.

2. AI Data Enrichment
Automatically tag corner lots, road frontage, flood zones, parcel shape, zoning, and more. Better inputs lead to better outputs.

3. Ensemble Modeling
We run nine different models and take the median estimate. It is the wisdom of crowds approach to mass appraisal. Cleaner distributions. Stronger ratios. Lower CODs.

4. Visualization and Appeals Defense
See every sales ratio on one screen. Surface the best comps in seconds. Auto-generate defensible reports with explainable adjustments.
Meet ValPal
ValPal
ValPal is your office's AI assistant trained specifically for property tax and appraisal workflows. It is completely free.
• Check property condition using listing photos
• Flag non arm's length and multi parcel sales
• Draft comp grids with consistent adjustments
• Run quick ratio studies including COD, PRD, and VEI
• Get cited answers grounded in IAAO standards
Create Your Free Account
If you would like to see how this works in a real jurisdiction, we are happy to walk through it conversationally. No slide marathon. Just practical tools you can use tomorrow.
We appreciate everything you do to deliver fair, defensible, and equitable assessments.
Will Jarvis
CEO, Valuebase
(252) 904 6817
will@valuebase.ai
www.valuebase.ai
in
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