conditionalControls API provides rule-based values for different controls data attributes.
The API returns either a fixed or a condition-based value for each controls data item.
A fixed value means the rule does not change in any situation. For example, if the max_far control has a fixed value of 25, it means the maximum floor area ratio is always 25, regardless of the land use condition at the location.
A condition-based value means the rule changes depending on the land-use type. For example, for min_lot_width_ft, the required width is 75–150 ft for Courtyar Housing, while for a Commercial Block, the range becomes 100–150 ft.
A unique key to access and authorize the API.
Latitude value of the location, for example, lat= 33.84888310969514.
Longitude value of the location, for example, lng= -118.389390707016.
A valid address, for example, 427 E Main St, Ventura, CA 93001, USA.
Indicates whether the request was successful or not
The link field contains the URL that corresponds to the resource or endpoint you requested. It provides a direct link to the requested resource, enabling you to quickly access or reference the specific location related to their request within the API.
This object returns a JSON object with all the data sets grouped under keys defined below. The response could vary depending on the output_fields param
| Object | Attribute Name | Description | Data type | Sample Value |
|---|---|---|---|---|
Metadata of the city | city_id | Unique ID of the city. | Number | 187 |
city_name | Name of the city. | String | Baltimore | |
last_updated | Indicates when the zoning data was last updated for the city. | String | 2025-09-29 | |
Zoning Information | zone_code | The abbreviation for a zoning district as provided by the municipality. | String | R1,C2. |
zone_name | The complete name for a zoning district as provided by the municipality. | String | Single Family Residential. | |
zone_type | A standardized classification of the zone based on the intended primary use. | String | Residential, Commercial, etc. | |
zon_sub_type | A standardized sub-classification of the zone based on the primary uses intended. | String | Single Family, Two Family. | |
zone_guide | A brief description of the objective of the zone. | String | The C-1 Neighborhood Business Zoning District is intended for areas of commercial clusters or pedestrian-oriented corridors of commercial uses that serve the immediate neighborhood. | |
link | Link to the full zoning code or municipal code of the jurisdiction. They are also known as zoning ordinance or zoning by-laws. | String | https://www.zoneomi cs.com/code/redond o-beach-CA | |
Controls | controls | This is the main object that contains fixed and condition-based values for all the development control parameters. | Object | max_coverage: { type: fixed, value: NA }, min_lot_width_ft: { type: conditional, conditions: [ { value: 25–150, condition: Live or Work }, { value: 75–150, condition: Side court Housing }, ], best_case_value: 25, worst_case_value: 150 } |
type | Indicates whether the control has a single value or varies by condition. | String | “fixed” or “conditional” | |
value | This attribute contains the control value when the type is fixed. | String | “5”, “NA” or “NULL” | |
conditions | List of scenario-based values when the type is conditional. | Array of Objects | { "value": "25–150", "condition": "Live or Work" } | |
conditions[].value | The attribute contains the value that is applicable under a specific condition. | String | 25–150, 10, or NULL | |
conditions[]. condition | Description of the use, building type, or situation under which the value applies. | String | Courtyard housing, Live or Work | |
best_case_ value | Most permissive value across all listed conditions. Useful for quick evaluation. | String/ Number | 0-5 or 25 | |
worst_case_ value | Most restrictive value across all listed conditions. Useful for conservative analysis. | String/ Number | 5-10 or 14 | |
lat | Latitude of location. | Number | 33.8668575 | |
lng | Longitude of location. | Number | -118.3575175 |
Find all the usecases for the api below
https://api.zoneomics.com/v2/conditionalControls?lat=34.2808409&lng=-119.2931259&api_key=<your API key here>https://api.zoneomics.com/v2/conditionalControls?address=427 E Main St, Ventura, CA 93001, USA&api_key=<your API key here>
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