Explain why the number moved.
Toggle drivers on — each delta is discussable.
“Zoning +4% was the whole conversation.”
All analytical layers
ENR
valuation-enrichment
One number — with every layer still visible.
Propibay stacks comps with zoning, utilities, POI and soil adjustments so the estimate moves for reasons you can name.
±8%illustrative band around an enriched point estimate
Book a demoWho it's for
Composite without the black box
Agents, appraisers and buyers need the driver list.
Start from structured adjustments.
Layer deltas become a first-draft adjustment grid.
“I didn't invent the utility uplift — it was listed.”
See upside and haircuts separately.
Negative POI/soil deltas keep optimism honest.
“Comps base plus named haircuts — finally.”
Try it
Opaque AVM vs. driver stack
Toggle enrichment drivers on the illustrative composite.
Each layer's percentage contribution stays visible.
Without Propibay
- Base comps296 k
- Adjustmentsvibes
A point estimate with no receipts.
With Propibay
312 000 PLN±8%
- Comparables base0%
- Zoning+4%
- Utilities+3%
- POI-2%
- Soil-1%
What changes
Outcomes you can take into the room
- 01
Defend an adjusted number with named drivers
- 02
Separate baseline comps from enrichment uplift
- 03
Keep band width honest (±%)
What it does
- Combines layer outputs into one estimate
- Itemises percentage drivers
- Keeps a visible uncertainty band
Built on
- Comps valuation
- Zoning / utilities / POI / soil
- Enrichment rules
Built forAnyone allergic to black-box 'AI value'.
Why teams trust itSales illustration only until enrich samples are green.