Indiana Commercial Property Data: Sources, Challenges, and How to Use Them
A practical map of where Indiana commercial property data actually lives, what varies county to county, and where the real gaps are for anyone doing serious comp work.
The Indiana data landscape for commercial appraisers
Indiana's commercial property data exists across a handful of distinct sources, each covering a different piece of the picture. Sales Disclosure Form (SDF) data, rolled up through the DLGF Gateway system, is the authoritative record of what sold and for how much. County assessor CAMA (computer-assisted mass appraisal) systems hold building characteristics, condition, and assessed value. IGIO -- Indiana's statewide GIS coordination office -- maintains parcel boundary data usable for acreage and dimension work. Individually, each of these is solid, public, well-maintained data.
What doesn't exist at scale is a unified commercial database that ties these together with the reliability of an MLS -- no centralized platform verifies a commercial sale price the way a mandatory-disclosure MLS does in states that require it. Indiana's SDF requirement actually produces more systematic price verification than many MLS-dependent markets, since disclosure is a legal filing requirement rather than a voluntary listing courtesy -- but it's less familiar to appraisers trained on markets where a commercial MLS is the default starting point.
County assessor data and property record cards
A property record card (PRC) is the county assessor's own building-level record: construction type, square footage, year built, condition rating, and the components that feed the assessed value. The catch is that Indiana's 92 counties don't run one shared PRC system -- they're split across several vendor platforms. A large share of counties run on Beacon (Schneider Geospatial); Marion County runs its own independent system; Allen and St. Joseph share a platform through ACiMap; a cluster of counties runs on XSoft Engage; and a separate group of mostly rural counties runs on a completely different, non-Esri mapping platform. A handful of counties -- Hamilton and Boone among them -- run their own independent GIS portals distinct from any of the above.
The practical consequence is that building characteristic data isn't uniformly available or uniformly formatted. Two counties on different vendor platforms can present the same underlying category of information -- condition, grade, effective year -- in different layouts, with different completeness, and occasionally with quirks specific to how that vendor's card renders certain data. Anyone pulling PRC data across multiple counties for a single assignment runs into this variation directly.
What commercial brokers need vs. what appraisers need
Brokers and appraisers pull from the same underlying data but use different slices of it. A broker comparing recent sales to price a listing typically wants price, property type, and acreage or square footage quickly -- enough to gauge the market without building a formal analysis. An appraiser preparing a comp grid for a formal report needs meaningfully more: building characteristics, condition and grade, assessed value breakdown, and documentation sufficient to support an adjustment methodology, particularly for right-of-way work where the comp sheet itself becomes part of the submitted record.
The same source data supports both use cases, but the depth of research that makes sense for a broker's quick market check is different from what an appraiser needs to defend a value opinion -- worth keeping in mind when deciding how much time to spend gathering supporting detail for a given task.
One search, all 92 counties
ParcelComp consolidates Indiana's statewide SDF dataset into a single searchable database, with AI-powered natural-language search and FMV/arm's-length screening built in.
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