Climate risk data displayed in a Chrome side panel alongside supported real estate websites
Free browser extension that displays climate risk information for California properties on Zillow, Redfin, Realtor.com, Trulia, Compass, and Homes.com
⬇️ Download for Chrome
Climate risk data displayed in a Chrome side panel alongside supported real estate websites
Official CAL FIRE Fire Hazard Severity Zones (both State and Local Responsibility Areas) showing property-level wildfire exposure
FEMA National Flood Hazard Layer (live API), returning the current flood zone designation for any California address
Decadal wildfire occurrence probability from Cal-Adapt / UC Merced climate models for the 2050s decade
FEMA Future Conditions flood hazard extracted from the same NFHL response, showing where flood risk is expected to increase
CMIP6 LOCA2 five-model ensemble projection of the average annual peak temperature (median plus model range) under the SSP3-7.0 scenario
Projected days per year above the local historical 95th-percentile temperature by mid-century, from the CMIP6 LOCA2 ensemble
Projected change in average annual precipitation vs. the 1981–2010 baseline, from the CMIP6 LOCA2 ensemble — wetter raises runoff and flood risk, drier raises drought stress
Projections from the nearest NOAA tide gauge (NOAA NOS 2022, OPC 2024 California planning standard) for coastal properties, with links to the NOAA Sea Level Rise Viewer
Present-day risk percentiles for wildfire, inland flooding, earthquake, landslide, and extreme heat, compared against every U.S. census tract (FEMA NRI, Dec 2025)
Fire Hazard Severity Zones
National Flood Hazard Layer (+ FC-FIRM)
Multi-hazard risk percentiles (Dec 2025)
Heat, precipitation & wildfire probability projections (2050s)
Sea level rise (OPC 2024 standard)
Sea Level Rise Guidance
Download the extension
Install Climate Risk - California directly from the Chrome Web Store, or download from GitHub to load unpacked
Pin the extension
Click the 🧩 puzzle piece icon in Chrome's toolbar, find Climate Risk, and click 📌 to pin it so the badge indicator is always visible
Browse property listings
Navigate to any California property on Zillow, Redfin, Realtor.com, Trulia, Compass, or Homes.com. The extension icon shows a badge (!) when you're on a supported property page — click it to open the Climate Risk side panel showing current conditions, mid-century CMIP6 projections, and a FEMA National Risk Index section
This information is provided for educational purposes only and should not be the sole basis for real estate decisions. Climate risk assessments may not reflect the most current conditions or all potential hazards. Consult with qualified professionals and review official hazard maps before purchasing property.
Your privacy is important. This extension operates entirely on your device.