Decomposed Valuation Lineage

Hardcoded: 4 Calculated: 6 Live API: 4
Audited Valuation Estimate (AVM)
$548,220
91.4% Confidence
Based on 6 local arm's-length sales
Valuation Variance Contribution by Source Type API (54%) · Calc (32%) · Hardcoded (14%)
Hardcoded Baselines: Baseline $/sqft, tax depreciation curves, regional cap rates
Calculated Metrics: Distance decay comp weight, age discount, AVM blended sum
Live API Feeds: Census median income, county tax assessor rate, nearby MLS comps

Data Lineage & Execution Graph

Deterministic DAG (Directed Acyclic Graph)
1. Static Constants
BASE_RESIDENTIAL_RATE$185/sqft
ANNUAL_DEPRECIATION_CEILING25.0%
BEDROOM_MARGINAL_PREMIUM$14,500
BATHROOM_MARGINAL_PREMIUM$9,200
2. Live API Providers
Census ACS 5-Year Tract API$88,400 Med Inc
County Assessor Tax API1.82% Millage
MLS Spatial Comp Radius6 Closed Sales
OpenStreetMap Transit IsochroneTransit: 74/100
3. Derived Formulas
Distance Decay Kernel W_i1 / (1 + d^1.8)
Hedonic Age Depreciation-8.5%
Neighborhood Index Scaler1.18x
Final Blended AVM Output$548,220

Complete Data Source Lineage Table

Live evaluated on this device
Field / Attribute Classification Source / Origin Current Value Audit Action
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