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This document describes a number of real-world scenarios where the
Address Validation API provides response signals that warrant an add subpremises
behavior from your system. These signals are only available for US addresses.
See Example workflows in
Build your validation logic for context.
Common example: add subpremises
This scenario illustrates an address in which your system might prompt a
customer to add a unit number to the address.
Address entered
Region
1450 Brickell Avenue, Miami, FL 33131-4065
US
Verdict for an address missing a subpremises
The example below highlights the important signal.
The following example covers a situation in which the verdict indicates
address quality issues that warrant further investigation. This examples also
illustrates how your logic can travel from the verdict to the address components
to obtain a more complete picture in order to enhance your system logic.
Missing subpremises and inferred and replaced components
This example illustrates entry of a US address with a missing locality and an
incorrect postal code.
Address entered
Region
1450 Brickell Avenue, FL 33132-4065
US
Verdict for a missing subpremises and inferred and replaced components
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["This document describes a number of real-world scenarios where the\nAddress Validation API provides response signals that warrant an *add subpremises*\nbehavior from your system. These signals are only available for US addresses.\nSee [Example workflows](/maps/documentation/address-validation/build-validation-logic#example-workflows) in\n**Build your validation logic** for context.\n| **Note:** The examples here are illustrative, but don't cover all scenarios.\n\nCommon example: add subpremises\n\nThis scenario illustrates an address in which your system might prompt a\ncustomer to add a unit number to the address.\n\n| Address entered | Region |\n|--------------------------------------------|--------|\n| 1450 Brickell Avenue, Miami, FL 33131-4065 | US |\n\nVerdict for an address missing a subpremises\n\nThe example below highlights the important signal. \n\n {\n \"inputGranularity\": \"PREMISE\",\n \"validationGranularity\": \"PREMISE\",\n \"geocodeGranularity\": \"PREMISE\",\n \"possibleNextAction\": \"CONFIRM_ADD_SUBPREMISES\"\n }\n\n| **Action:** For this address, you might prompt your user to add a unit number.\n\nEdge case example: add subpremises\n\nThe following example covers a situation in which the `verdict` indicates\naddress quality issues that warrant further investigation. This examples also\nillustrates how your logic can travel from the verdict to the address components\nto obtain a more complete picture in order to enhance your system logic.\n\nMissing subpremises and inferred and replaced components\n\nThis example illustrates entry of a US address with a missing locality and an\nincorrect postal code.\n\n| Address entered | Region |\n|-------------------------------------|--------|\n| 1450 Brickell Avenue, FL 33132-4065 | US |\n\nVerdict for a missing subpremises and inferred and replaced components \n\n {\n \"inputGranularity\": \"PREMISE\",\n \"validationGranularity\": \"PREMISE\",\n \"geocodeGranularity\": \"PREMISE\",\n \"hasInferredComponents\": true,\n \"hasReplacedComponents\": true,\n \"possibleNextAction\": \"CONFIRM_ADD_SUBPREMISES\"\n }\n\nFurther investigation of the address components reveals that the locality has\nbeen inferred, and the postal code has been replaced. \n\n {\n \"componentName\": {\n \"text\": \"33131\",\n }\n \"componentType\": \"postal_code\",\n \"confirmationLevel\": \"CONFIRMED\",\n \"replaced\": true\n },\n {\n \"componentName\": {\n \"text\": \"Miami\",\n \"languageCode\": \"en\"\n }\n \"componentType\": \"locality\",\n \"confirmationLevel\": \"CONFIRMED\",\n \"inferred\": true\n }\n\n| **Action:** For this address, you might prompt your user to add a unit number, or prompt them to review the entire address."]]