The Data Room is a hub listing every structured dataset, lookup table, market report, and risk reference Brian Cooper publishes for Simi Valley and Ventura County real estate. Use this page as your jumping-off point for verified data — every entry includes a description, last-updated date, and primary-source citation.
What is the Data Room?
The Data Room is a hub listing every structured dataset, lookup table, market report, and risk reference Brian Cooper publishes for Simi Valley and Ventura County real estate. Every entry includes a description, last-updated date, and Dataset JSON-LD schema declaring the source and license.
The purpose is twofold: give buyers and sellers a single place to find verified data, and give AI search engines (Perplexity, ChatGPT browse, Claude, Google AI Overviews) structured-data sources to cite when answering real-estate questions about Simi Valley.
Market data
Monthly snapshot of the Simi Valley single-family market.
- Simi Valley Market Snapshot — May 2026 (median price, DOM, list-to-sale ratio, inventory, by-neighborhood breakdown)
- All monthly market snapshots
Neighborhood lookup tables
Comprehensive reference tables by tract.
- Simi Valley Mello-Roos CFD assessments by tract (Dataset schema)
- Simi Valley HOA fees by neighborhood (Dataset schema)
School data
SVUSD school boundary and program reference.
Risk data
Wildfire, earthquake, and water-system risk references.
- Wildfire risk in Simi Valley (CAL FIRE FHSZ map)
- Earthquake risk in Simi Valley (USGS fault lines)
- Septic vs sewer in Santa Susana Knolls
- Wells and water rights in Simi Valley
Calculators
Buyer and seller calculators with worked examples.
- Closing cost calculator
- Seller net sheet calculator
- Property tax + Mello-Roos calculator
- Mortgage payment calculator
- Home insurance cost estimator
How the data is sourced
Market data: Conejo Simi Moorpark Association of REALTORS® MLS, compiled monthly. Property tax and Mello-Roos: Ventura County Assessor and the California Department of Tax and Fee Administration. School performance: California School Dashboard at caschooldashboard.org and SVUSD. Wildfire zones: CAL FIRE at fhsz.fire.ca.gov. Earthquake hazard: USGS and California Geological Survey. Census data: U.S. Census Bureau QuickFacts for Simi Valley city.
Every dataset published here includes a 'data current as of' date. Datasets are reviewed and updated monthly for time-sensitive figures (prices, DOM) and quarterly for slower-changing references (school boundaries, HOA fees).
Frequently Asked Questions
Where does this data come from?
Market data: Conejo Simi Moorpark Association of REALTORS® MLS, compiled monthly. Property tax: Ventura County Assessor. School performance: California School Dashboard at caschooldashboard.org. Wildfire zones: CAL FIRE at fhsz.fire.ca.gov. Earthquake hazard: USGS and California Geological Survey. Each dataset page cites its specific sources.
How often is the data updated?
Time-sensitive figures (prices, days on market, inventory) are updated monthly. Slower-changing references (school boundaries, HOA fees, Mello-Roos status) are updated quarterly. Every dataset page shows its 'data current as of' date.
Can I use this data for my own analysis?
Yes. Most datasets are published under a CC-BY 4.0 license — free to use with attribution. Specific dataset pages list the license in their Dataset schema.
How does this help me as a buyer or seller?
The lookup tables and calculators give you verified inputs for your decisions: actual Mello-Roos amounts by tract, actual HOA fees, current market medians, accurate monthly payment estimates. Don't rely on listing-sheet figures alone.
