Where the data comes from. Every source attributed.
Analyst-grade tools require analyst-grade transparency. Every data source in Parcelhalo's valuation engine is documented here: what it covers, how often it updates, and what its limitations are.
Five data categories that power Parcelhalo analysis.
Public Deed Records
County recorder deed transfer filings for all commercial property transactions. This is the ground-truth source for comparable sale prices — actual recorded consideration amounts, not self-reported figures. Coverage: Mecklenburg, Wake, Fulton, Davidson, and adjacent counties.
Municipal Zoning Databases
City and county planning department APIs and public portal data. Includes current zoning classifications, overlay districts, active variance petitions, and rezoning history. Charlotte's city portal is our primary source; similar portals for Raleigh, Atlanta, and Nashville.
MLS-Aggregated Comparable Sales
Commercial MLS comparable transaction data aggregated from regional listing services. This layer adds broker-reported sale details — days on market, listing price vs. sale price, use class — that deed records alone don't capture. We benchmark these against deed record prices where both are available.
County Assessor Data
Mecklenburg County, Wake County, Fulton County, and Davidson County assessor property records. Used for parcel identification (APN), lot dimensions, building characteristics, current assessed value, and assessor land-use classification. The assessor gap analysis compares our market estimate to assessed value using this source.
Anonymized Location Analytics
Aggregated and anonymized mobile location data processed to produce foot traffic indices by parcel and time period. No personally identifiable information is used — data is aggregated at the census block level before ingestion. Normalized against submarket baseline for comparable property types to produce the foot traffic percentile score.
Update cadence by source.
| Source | Frequency | Lag from source |
|---|---|---|
| Public deed records | Bi-weekly | 3–14 days |
| Zoning classifications | Quarterly | Up to 90 days |
| Zoning petitions (active) | Weekly | 7 days |
| MLS comparable sales | Weekly | 7–14 days |
| County assessor | Annual | Per county revaluation cycle |
| Location analytics | Monthly (90-day window) | 30 days |
Methodology Integrity Statement
Parcelhalo does not claim real-time data or zero-lag pipelines. Every report includes a "data freshness" indicator showing the age of each source input used in that specific analysis. When a key data source is stale beyond a threshold for a given parcel, the report notes the limitation explicitly rather than silently using outdated inputs. Our commitment is to defensible estimates, not false precision.
CoStar, MLS databases, and other third-party commercial data platforms are referenced in our methodology documentation as benchmarks and comparisons. They are not our clients and have not endorsed our platform. We use publicly available and licensed data streams — not proprietary exports from commercial data providers.