You picked the house.What should you know?

Whether the address sits in a Special Flood Hazard Area, where federally backed mortgages typically require flood insurance.

Your county's predicted average indoor radon level. Some areas warrant testing or radon-resistant construction by default.

Active and archived priority environmental cleanup sites within three miles of the address.

Modelled risk that wildfire would reach a structure on this lot — based on terrain, fuels, and historical burn data.

Magnitude-3+ earthquakes recorded within 50 miles over the past decade. A simple seismicity check, not a full hazard model.

Federally declared severe storms, tornadoes, ice storms, and inland floods that affected this county in the past 10 years.

Federally declared hurricanes and tropical storms affecting this county over the past 30 years — the buyer's window into how often the coast gets hit.

Health-based violations recorded against the community water system serving this area in the past 5 years.

Current air quality index near the property, including the worst pollutant from the closest monitoring station.

Exact ground elevation above sea level — useful context for flood, surge, and climate.

Current weekly drought classification at this location, from abnormally dry to exceptional drought.

Distance to the nearest tracked volcano. Most addresses are far enough away that this reads green; some Pacific and Cascade addresses are not.

Whether the address falls within modelled coastal inundation scenarios at 1, 3, 6, and 10 feet above today's high tide.

Whether the address is in a coastal state with documented tsunami hazard zones.

Soil drainage class and historical flooding frequency for the lot — affects basements, septic, and yard standing water.

Median effective property-tax rate for the state — often the largest hidden cost a buyer underestimates.

Coldest expected winter low for the area, expressed as a USDA zone — a quick read on how harsh winters are.

Estimated annual energy production from a typical 4 kW rooftop system — useful for buyers thinking about energy costs.

Distance to the closest hospital. A practical concern for older buyers, families, and rural addresses.

Distance to the nearest operating commercial reactor — relevant if the address is inside a 10- or 50-mile planning zone.

Whether the state is in the high-incidence cluster for Lyme disease — relevant for outdoor activity and pets.

Median home value, household income, owner-occupancy, age, and education for the census tract — sets the register of the block.

Average one-way commute for workers in this tract — the question relocators wish they'd asked sooner.

Distance to the closest school and how many are within five miles — practical for families.

Distance to the nearest large or medium hub airport — a fair proxy for overhead flight noise.

Public EV charging stations within ten miles of the address, including DC fast-charge ports.

Quick read on whether the USDA Rural Development loan program (zero down, income-limited) likely applies in this state.

Active industrial facilities reporting chemical releases in this ZIP — complements the historical hazardous-sites check.

State-level 30-year averages: snowfall, hot days, sunny days. A quick read for relocators.

State-average annual premium. The cost most buyers underestimate — it varies five-fold across the country.

Average hours per year customers in this state lose electric power, including major weather events.

Distance to the nearest motorway, trunk route, or primary highway — a fair proxy for traffic noise at the property.

Distance to the nearest park, nature reserve, or recreation area — quality-of-life signal for outdoor access.

Active facilities in this ZIP licensed to handle hazardous waste. Distinct from historic Superfund cleanup sites.

Distance to the nearest mapped dam — relevant for downstream-flooding context if a dam fails or releases unexpectedly.

Distance to the nearest active mainline railroad — train horns and freight rumble are real noise concerns.

Mapped mines, quarries, and historical mineshafts within five miles. Subsidence and mine drainage are real concerns in coal country.

Distance to the nearest mapped electrical generation facility, with extra weight on coal and gas plants for emissions.

Distance to the nearest fire station or ambulance station — a fair proxy for response times during medical or fire emergencies.

Watches, warnings, and advisories currently in effect at this location — a real-time read on what the weather is actually doing today.