The Open Ledger of Property Intelligence
ValueGrid is an open-source property intelligence platform designed to create a transparent and verifiable foundation for understanding real estate value. Instead of relying on closed, proprietary systems, ValueGrid brings together public data, regulatory sources, geospatial analysis, and structured modeling into a single open framework that can be inspected, audited, and improved by the community. The goal is to establish a trusted “open ledger” of property intelligence that supports both professional use and public access.
At its core, ValueGrid combines a multi-model valuation engine with a comprehensive National Property Ledger that tracks the full lifecycle of every property. This includes ownership history, structural details, permits, renovations, and historical valuations. Each record is versioned and traceable, creating a transparent audit trail for how property data evolves over time. The system is designed to support appraisers, lenders, researchers, and developers who need reliable, explainable data rather than opaque estimates.
ValueGrid also integrates deep environmental and infrastructure intelligence layers that influence real-world property value and risk. These include flood maps, airport safety zones, radon risk areas, wildfire exposure, and infrastructure proximity such as transit and utilities. By incorporating authoritative datasets from agencies like the Federal Emergency Management Agency and the United States Environmental Protection Agency, the platform ensures that valuation reflects real environmental and regulatory conditions.
Additional features include survey analysis (boundary and elevation data), zoning and land-use interpretation, market trend analytics, and fraud detection systems that flag suspicious transactions or inconsistencies. ValueGrid also provides public-facing tools such as an interactive map and a verification database, allowing users to explore property intelligence in a transparent and accessible way. Together, these features position ValueGrid as a unified infrastructure layer for open, verifiable real estate intelligence.
- ValueGrid — An open-source property intelligence platform that provides transparent valuation models, environmental risk analysis, and a publicly verifiable National Property Ledger.