CoreLogic Wildfire Alternative: Sub-Meter Physics vs 30m Hazard Polygons
CoreLogic is a heavyweight data aggregator suited for multi-peril 50-state procurement. However, for California and Western WUI property underwriting, its broad 30-meter hazard grids and rigid $40,000–$140,000 annual minimum commitments penalize innovative MGAs. Here is why commercial underwriters are upgrading to deterministic physics with zero annual commitments.
CoreLogic Wildfire
Aggregated regional hazard scores based on 30m digital elevation, historical burn perimeters, and parcel boundaries. Bundled into large multi-peril enterprise contracts.
VesperSpatial (Delphi-1.0)
Deterministic physics utilizing USGS 1m LiDAR 3D micro-topography, hourly ECMWF ERA5 fuel moisture, and automated 10 CCR § 2644.9 mitigation discounts.
Why 1-Meter Resolution Matters for Loss Ratios
Wildfire flame spread is non-linear. Fire travels up a steep 35° slope up to 8x faster than across flat terrain due to convective pre-heating. A 30-meter elevation grid averages out micro-ravines, rocky fire-breaks, and structural setbacks—leading to severe mispricing.
The Problem: A 30m x 30m cell covers 900 square meters (nearly 10,000 sq ft). It assigns a single uniform slope and fuel value across multiple structures or an entire hillside subdivision.
Underwriting Impact: A well-mitigated commercial structure on a cleared ridge bench receives the exact same high-hazard decline rating as an unhardened structure tucked into an untreated brush canyon 50 yards away.
→ Results in unwarranted policy cancellations, broker pushback, and lost profitable premium.
The Solution: 1-meter point cloud resolution calculates the exact micro-topography slope gradient at the building foundation wall, accounting for stone retaining walls, slope aspect, and convective heat vectors.
Underwriting Impact: Accurately isolates parcels with true terrain shielding from uphill fire runs, enabling you to write profitable surplus lines accounts that incumbents blanket-decline.
→ Expands your addressable market while improving combined loss ratios by 4–9 points.
Eliminate Upfront Capital Lock-In
CoreLogic contracts frequently require $40,000 to $140,000+ in annual minimum licensing commitments, payable regardless of policy volume or bound gross written premium (GWP).
Zero prepayment penalty. Scale your cat modeling expenses strictly in lockstep with your incoming submission volume.
Run a 6-Week Shadow Pilot Against CoreLogic
Test Delphi-1.0 in parallel against your CoreLogic scores on your historical book or live submissions. Benchmark false positive decline rates, verify CDI § 2644.9 credits, and review ASOP 38 sensitivity reports with $0 software fees.
Inspect Any California Property in Real Time
Enter any address to test USGS 1m LiDAR elevation slope convection, live ERA5 fuel moisture, and statutory CDI § 2644.9 credits in under 45 milliseconds.