Zoning lookup tools pull setbacks, height limits, FAR, and permitted uses. But knowing a parcel is zoned R-2 doesn't tell you whether you should buy it.
You also need: site-specific construction costs (driven by soil, slope, seismic zone, flood risk), environmental constraints (wetlands, brownfields, contamination), soil data (bearing capacity, drainage, shrink-swell), permit timeline predictions, and financial modeling.
Integrates zoning, environmental, geotechnical, topographic, infrastructure, financial, and market data. Zoning is about 15% of the information needed for an investment decision.
Developers who buy on zoning data alone discover $100K-$500K surprises: retaining walls, expansive clay foundations, flood zone construction, wetland buffers.