An engineer's screening report on any U.S. property, in 90 seconds. Flood zone, wetlands, soil drainage, slope, nearby streams, and design rainfall — pulled live from FEMA, USFWS, USDA, USGS, and NOAA. Plain English. $29. No subscription required.
Real data, no fakes. FEMA NFHL · USFWS NWI · USDA SSURGO · USGS 3DEP & NHD · NOAA Atlas 14
Each report compiles eight federal datasets into one plain-English screening document. The same checks an engineer would run before recommending a lot to a client — packaged so a homeowner or realtor can read it in five minutes.
Effective NFHL designation (X, A, AE, VE, etc.), base flood elevation if mapped, and what it means for insurance and lender requirements.
National Wetlands Inventory check on the parcel and surrounding area, with wetland classification and how close the nearest one is.
SSURGO soil series, hydrologic group (A–D), drainage class, and what it implies for septic, foundations, and stormwater.
Ground elevation and average slope across the lot, sampled from USGS 3DEP. Flags steep terrain that complicates building.
Distance to the nearest mapped stream or water body. Important for setbacks, riparian buffers, and erosion risk.
Site-specific 2-, 10-, 25-, and 100-year storm depths. Tells you what your driveway, gutters, and any drainage will need to handle.
Current land cover (forest, developed, cropland, etc.) and impervious area percentage from the National Land Cover Database.
One paragraph at the top: "What you should worry about on this lot, what you can ignore." Written by an engineer, not a script.
Four real reports from real addresses across the country. These are the actual PDFs a buyer would receive after checkout — generated by the same pipeline you'd use for your lot.
Realtors, builders, and homeowners using SitePrior to screen lots before they commit. Quotes shown are illustrative until our beta cohort has authorized public attribution.
SitePrior caught a Zone AE designation on a lot my buyer was about to put under contract. Saved them a five-figure flood-insurance surprise. I run a report on every listing now.
Mountain lot looked perfect on paper. The report flagged 24% slope and Group C soils — our builder confirmed the foundation alone was a $45K problem. Best $29 we've spent on a real-estate decision.
I run a SitePrior report on every infill parcel I'm pricing. Faster than my engineer's preliminary screen and a fraction of the cost. It tells me which lots deserve a real geotech and which don't.
The plain-English summary is the part that sold my non-engineer partners. They get a one-paragraph verdict on every lot we're considering, with the engineering reasoning behind it. We've passed on three deals in the last quarter because of what was in those summaries.
I send the SitePrior report to clients before our first showing on rural lots. Cuts the "but I didn't know about the wetland" conversations down to zero.
We were prepared to walk on a Galveston coastal lot but the SitePrior report laid out exactly what VE-zone construction would cost. Eyes open, we made the offer. Closed last month.
Pay per report, save with a pack, or go unlimited if you screen lots regularly. No hidden fees, no subscription required for single reports.
One property. Delivered as PDF in 90 seconds.
For builders and investors evaluating multiple lots. $19.80 each.
For agents and small brokerages running reports on every listing.
The data is as accurate as the federal source it comes from — FEMA's NFHL is the authoritative U.S. flood map; USDA SSURGO is the authoritative soil survey; NOAA Atlas 14 is the authoritative design rainfall. We do not modify those values. The interpretation layer is written by our engineering team, but it is screening-grade — not a substitute for a permit-stamped study.
No. Permits require stamped work from a licensed engineer or surveyor in your state. SitePrior tells you what the lot's risks are before you commit to that spend. If a report flags wetlands, steep slope, or a flood zone, you'll know to budget for the appropriate professional before closing.
If our geocoder can't resolve your address, you can paste a latitude and longitude instead (e.g., 35.5951, -82.5515). Tax parcel viewers, Google Maps, and Zillow all show coordinates. If we still can't generate a report, you get a full refund — no questions.
If a report fails to generate, or if any data layer is unavailable for your location at the time of purchase, you get a full automatic refund. We do not refund reports that successfully deliver — the data is what the data is.
SitePrior is built by a team of engineers with a decade of stormwater, drainage, and dam-safety work. Same team behind HydroComplete (engineering SaaS) and PE-Calc (free engineering calculators).
Yes. All federal data sources cover the contiguous U.S., Alaska, and Hawaii. Atlas 14 rainfall is unavailable in a handful of remote areas — when that happens, the report notes it and uses the nearest applicable station.
Yes — included in the Realtor Unlimited plan. Your logo and contact info appear on every PDF. Email hello@siteprior.com with your brokerage name to set up.