Licensing & Data Attribution
Last updated: July 2026
Every figure in a sounding report comes from an official public source, and every report carries its own numbered source list. This page credits those sources site-wide and states how our own content is licensed.
Data sources
- SANDAG / SanGIS regional parcels — Parcel facts, assessed values, situs addresses. SANDAG open GIS data.
- County of San Diego special-assessments portal — Per-parcel tax rate and Mello-Roos/CFD line items. Public records (county portal).
- Federal Reserve Bank of St. Louis (FRED) — Live 30-year mortgage rates. FRED API terms of use.
- U.S. Dept. of Housing & Urban Development (HUD) — Fair Market Rents. U.S. Government public data.
- FEMA National Flood Hazard Layer — Flood zones. U.S. Government public data.
- CAL FIRE & California Geological Survey — Fire-severity, fault, liquefaction/landslide, and tsunami zones. State of California open data.
- SANDAG / ARJIS CIBRS — County-wide reported-crime data. SANDAG open data portal.
- OpenStreetMap (Overpass) — Nearby schools, parks, groceries, transit. © OpenStreetMap contributors, ODbL 1.0.
OpenStreetMap data is used under the Open Database License (ODbL). Each agency's data remains subject to its own terms; none of these agencies endorse sounding.
Our content
Site content, guides, and the sounding brand and lockup are © 2026 SOUNDING.REPORT and may not be reproduced as a service or dataset without permission. Reports you generate are yours to use, print, and share for your own property decisions. The embedded Inter typeface is used under the SIL Open Font License; the marquee's pixel typeface (Press Start 2P) under the SIL OFL as well.