Why Cornload Exists

Every realtor comps properties. Pull recent sales, adjust for size and condition, land on a number. It works until the house sits on ten acres instead of a quarter-acre lot.

What does a pecan tree add? You can price crown molding or a kitchen remodel. A tree that takes a decade to produce anything doesn’t fit the same spreadsheet. Zillow and Redfin don’t close that gap. Their models learn from tract-home sales, and the blogs that cover rural valuation keep repeating the same limitation: the facts that matter on acreage—usable land, well yield, septic, slope, access, outbuildings—aren’t in the data those tools rely on.

Where the idea came from

The idea didn’t start with a developer. It started with a realtor who kept running into the same wall: the standard comp process breaks on landed property. He wanted a different way.

I came at it from the contractor side. I ran my own businesses in Northern Virginia and Connecticut and spent years working with agents on inspections, contingency reports, and the fix-up work that follows. I watched value get added to houses in rooms and finishes. Land is different math. A slope that renders half the acreage unusable, a well that tests weak, a pasture that actually produces—those don’t show up the same way in a tract-home model.

What the model does

Cornload values homes on 1 to 160 acres using completed sales of those properties in six Northern California counties. The model uses house size, deeded acres, age, bathrooms, location, and any recorded well or septic indicator, plus listing details when they’re available. It does not train on ordinary tract-home sales, vacant-land sales, or live asking prices.

County data feeds topographical views of the parcels, the same way mapping tools show terrain. That lets the site flag slope and wetlands so two five-acre properties aren’t treated as identical when one is flat and buildable and the other is steep or partially unusable. The published estimate still uses recorded deeded acres; usable acres are not verified inside the model. That’s why the separate usable-acreage tool exists for owners who want to supply what the records miss.

Starting with six counties

Those six counties already produce more than 15,000 property pages. The plan is to get the methodology right in a region where one MLS has clear coverage, then expand county by county toward a full merger. Scaling to fifty states would make the site the size of Zillow. Doing the smaller version correctly first is the point.

Owners and the “bestiment”

Because the site is early, the team is building ways for owners to improve their own numbers. If someone can add a shed, a well detail, or another feature that doesn’t appear in satellite imagery or county records, that information makes the estimate more useful before a realtor ever comps the property. The working name for that better number is a bestiment.

A simple property-claim process is in development. The details aren’t public yet.

What it won’t do

Cornload stays in one lane: homes on acreage. No tract-home valuations. No vacant-land pricing. The accuracy figures published on the site compare the model against itself under different data conditions. They are not claims against other tools.

That’s the scope.

Try it out

If you own a home on acreage in Solano, Yolo, Alameda, Contra Costa, San Joaquin, or Stanislaus County, run the estimate.

— Sean Kincaid