3 Ohio counties
Full structural model
Erie, Huron, and Trumbull use local parcel, dwelling, improvement, and valid-sale records in addition to the regional layer.
Erie · Huron · Trumbull
Local housing context across six states
Astrofly Home Value
A regional estimate, grounded in local markets.
Explore a residential price range across Ohio, Pennsylvania, West Virginia, Virginia, North Carolina, and South Carolina using property details, public appraisal data, and recent county market signals.
A research tool and starting point, not an appraisal.
6States in the service area
489Counties and county equivalents
107,954Regional purchase appraisals
8,545County and ZIP relationships
Purpose
Built for context, not certainty.
A home’s size, layout, age, and condition matter, but so does its market. Astrofly starts with the selected state, county, and ZIP, then places the property profile against regional structural patterns and the latest available local market level.
Every result includes a price range and a coverage label so the source and strength of the available evidence remain visible.
Method
How an estimate is made
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Set the local market
Select a state first, then a county or independent city and one of its available ZIP codes.
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Model the property
A six-state FHFA appraisal sample provides regional structural relationships. Detailed Ohio public records add a richer local model where available.
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Calibrate to today’s market
Recent single-family price and price-per-square-foot trends move the structural estimate toward the selected county’s current market level.
Coverage
Evidence changes from place to place.
Availability across a state does not mean every county has the same depth of local records. The estimator names the evidence tier with every result.
Most jurisdictions
County market calibration
The regional structural model is adjusted with a recent county-level single-family market series. These regional estimates are directional, not independently validated local appraisals.
Limited-market counties
State market calibration
Where a reliable county series is unavailable, the estimator uses the state market level and widens the expected range to reflect the thinner local evidence.
Evaluation
Measured tests, clearly scoped.
The regional structural adjustment was tested on 10,804 purchase appraisals from 2022 that were excluded from training. Its median absolute percentage error was 15.36%, before applying the current county market layer.
15.36%Regional 2022 median percentage error
$48,728Regional 2022 median absolute error
A separate locked 2026 test of 769 valid sales in Erie, Huron, and Trumbull counties produced a $41,281 median absolute error, or 20.52%. Neither test is a guarantee for a particular home, and the current multi-state calibration has not been validated as a local appraisal model.
Limits
What the model cannot see
Public records create a useful baseline, but they cannot replace a property inspection or local professional judgment.
Condition beyond the form
Renovation quality, exact interior condition, maintenance, and materials are only partly visible.
Block-level context
Views, easements, flood risk, traffic, school boundaries, and micro-neighborhood effects are outside the model.
Record timing
Public records and market series can be incomplete or delayed, and a current property may differ from its recorded profile.
Sources
Public data, documented limits.
Source dates, coverage tiers, and uncertainty remain visible because every dataset has a different purpose and level of detail.
Start with the local market