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They provide property details such as owner information, parcel identifiers, property addresses, legal descriptions, assessed values, taxable values, and exemptions, primarily focused on individual and condominium properties.Assessment Rolls 2008-2013: Represent finalized property data after preprocessing by PDM editors, including parcel creations, splits, and combinations. These layers store parcel identifiers, ownership details, parcel location, property class, school and government district information, and valuation data. They gradually expand to incorporate additional metadata fields.Assessment Rolls 2014-2016: These layers combine parcels, condominiums, and Boundary Survey Areas (BSA) into a unified dataset, enhancing integration of diverse property features. They include homestead percentage, acreage, ownership details, and updated geographic identifiers facilitating more detailed spatial analysis.Assessment Rolls 2017-2026: The most recent layers continue this detailed property information, maintaining uniform data structures. They detail parcels with information on parent parcel identifiers, condominium units, property addresses, owner names, assessed and taxable values, exemptions such as the Principal Residence Exemption (PRE), and property classifications. Combined with advanced geometric area and length calculations, these layers support accurate mapping and analysis of property assessments.Geographic CoverageThis dataset exclusively covers Ottawa County, Michigan, providing detailed property assessment data relevant to this region.Use CasesSupporting property tax assessment and valuation analysis over time.Historical parcel data research and urban planning applications.Integration with GIS for property boundary and land use mapping.Facilitating examination of ownership changes, property class trends, and exemption application.", "copyrightText": "Ottawa County Geospatial Insights & Solutions", "supportsDynamicLayers": true, "layers": [ { "id": 24, "name": "Assessment Roll March 2026", "parentLayerId": -1, "defaultVisibility": true, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Feature Layer", "geometryType": "esriGeometryPolygon", "supportsDynamicLegends": true }, { "id": 23, "name": "Assessment Roll March 2025", 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