Using the Feature Service

Regrid's Esri-compatible Feature Service allows you to use Regrid's seamless nationwide parcel layer in Esri tools.

Our Feature Service provides high-quality standardized nationwide parcel data with 154+ million parcel records and associated tax assessment information, covering over 99% of the US population.

We appreciate your feedback and questions at tech@regrid.com.

Best Practices

Optimization

We have optimized queries on a set of commonly-used fields. Queries on other fields may be slower or fail to complete. If you are looking to do operations on fields not in this list, and queries are taking a long time to complete, please don't hesitate to reach out to us at tech@regrid.com.

Definition Queries

Filtering a query by state, county, zip code or other optimized field may improve performance on operations.

When using ArcGIS Pro a Definition Query is recommended to limit results to a region of interest. This is especially helpful when using Analysis and Selection tools. Examples: At the state level state2 = 'MI', and at the county level geoid = '26163' (or for the Regrid Canada Parcels via Feature Service: admin1 = 'AB' and `geoid = '2464'). Create queries that narrow results rather than expand.

When using ArcGIS Pro, you can manually create a query or use the query builder tool. These are two ways you can create actual SQL query. These queries are limited to a subset of the SQL spec. For example:

  • WHERE queries cannot be nested or contain SELECT
  • WHERE must be used to narrow the set of parcels for responsive queries
  • Prefer queries with AND operators over OR operators. In cases where OR is needed, but the conditions are on the same column, it is more efficient to use the IN operator rather than multiple OR statements. For example, geoid IN ('26163', '26164', '26165') will be more efficient than geoid = '26163' OR geoid = '26164' OR geoid '26165'.
  • The LIKE operator is supported for some columns, but is less efficient than strict equality checks. While ArcGIS Pro does not directly support the ILIKE operator, the Regrid Feature Service converts all LIKE queries to be case-insensitive. Supported columns:
    • county
    • owner
    • parcelnumb
    • state2
    • scity
    • szip
    • zoning
    • address
    • address2
    • dpv_status
    • dpv_notes
    • cass_errorno
    • mailadd
    • path
    • alt_parcelnumb1
  • Regex is not supported

Outfields

To reduce the data size amount, you can select the option to only return the columns needed. For example if you only need the ll_uuid of the parcel property, address, or any other specific details versus all columns, you can use outFields.

outFields is one of the url query parameters accepted in the FeatureService spec. By default it's usually a value of * which is requesting all fields in the table. Passing a comma-separated list into outFields will only request those specific fields: outFields=ll_uuid,geoid,sqft would only return those three columns plus the geometries.

You will need to set the outFields parameter before importing a Feature Service layer into a Pro project.

outFieldsImage.png

In ArcGIS Online, although there is a 'custom parameter' field to add when adding the layer, you will have to append the outfields to the actual URL versus using the 'custom parameter' section.

Example

https://fs.regrid.com/{token}/rest/services/premium/FeatureServer/0?outFields=id,ll_uuid,geoid,sqft

Please note that when using outFields, you must start with id followed by the columns you wish to include. Once the layer is added, you view the Feature Service layer in Map Viewer Classic with the selected column fields.

outFields_stored_credential.png

Zoom levels

We recommend zooming to a county level or closer (Esri zoom 9).

Different platforms may use different units for these zoom levels. Actual performance will vary based on the platform, hardware, density of parcels in the county, and other factors.

More information on zoom levels in Esri products is available here: developers.arcgis.com/documentation/…/zoom-levels-and-scale.

Limit

There is a maximum result limit set at 3000. Complete results can be received by performing paginated requests per the GeoServices spec. Most Esri tools perform pagination on requests that involve fetching Regrid parcels.

ArcGIS Javascript SDK users or if using the FS as an API, you can invoke pagination to access the additional results that are greater than 3000. Pagination requires parameters resultOffset and orderByFields. You would need an additional request using these fields to access the additional results greater than 3000.

Example request: 
    
      https://{{host_name}}/{{token}}/rest/services/premium/FeatureServer/0/query?outFields=id&where=1%20%3d%201&f=json&returnGeometry=true&maxAllowableOffset=0.058859839906786317&outSR=%7b%22wkid%22%3a4326%2c%22latestWkid%22%3a4326%2c%22xyTolerance%22%3a8.983152841195215e-09%2c%22zTolerance%22%3a0.001%2c%22mTolerance%22%3a0.001%2c%22falseX%22%3a-400%2c%22falseY%22%3a-400%2c%22xyUnits%22%3a999999999.99999988%2c%22falseZ%22%3a-100000%2c%22zUnits%22%3a10000%2c%22falseM%22%3a-100000%2c%22mUnits%22%3a10000%7d&geometry={"xmin":-95.712890625,"ymin":32.43561304116276,"xmax":-95.712890625,"ymax":34.59704151614417,"spatialReference":{"wkid":4326,"latestWkid":4326}}&geometryType=esriGeometryEnvelope&spatialRel=esriSpatialRelIntersects&resultOffset=0&resultRecordCount=2000&orderByFields=id%20ASC&timeReferenceUnknownClient=true

Frequently Asked Questions

  1. How can I run a nationwide query in the Feature Service?
    Regrid has over 150 million parcels in the Feature Service and therefore running a nationwide query can be difficult. You will have to reduce the area location for the query to specified region level. Definition Query: county (geoid), state, or one of the census geography columns (e.g. census tract). You will need to use a geoprocessing tool to iterate through each geoid with your definition query and export the features. You can then merge all exported features into a single layer to obtain your nationwide results.

  2. Why do I get a timeout error when running a query in the Feature Service?
    If your query takes longer than 2 minutes, it will receive a timeout error. You can receive a timeout error when running a query if the area is to large for the Definition Query. Reduce the size to return the desired result. If you need to include the entire area, iterate over the area either by county, zip code or within a map extent or polygon. If the area is large or there is a dense parcel count, make sure the Definition Query is using an optimized field. Please refer to the list of optimized fields and best practices when creating your Definition Query.

  3. Can Regrid run a nationwide query and send me the data as an item?
    Tools in ArcGIS Online and ArcPro support the ability with running a nationwide query with using a geoprocessing tool. If you are looking for a batch query delivered by Regrid, GIS tools like ArcGIS Online and ArcGIS Pro offer ways to gather data.

  4. How can I summarize the data for owners across the nation?
    For example if you are looking for properties that are residential, you can use land based use codes as a definition query to return all parcels that are considered residential and then use the Frequency geoprocessing tool with owner as the input column to then summarize the data. Area size still matters in this query so make sure to limit it within a state or county. If you need it nationwide, refer to the FAQ above "How can I run a nationwide query in the Feature Service?".

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