---
title: "Get Da Precedent Conditions"
method: GET
path: "/api/v1/cd-planner/da-precedent-conditions"
tags: ["cd-planner"]
---

# Get Da Precedent Conditions

`GET /api/v1/cd-planner/da-precedent-conditions`

## Request

- Base URL: `https://api.casaintelligence.com.au` (the document declares no server; this is the origin it was published from)
- URL: `https://api.casaintelligence.com.au/api/v1/cd-planner/da-precedent-conditions`
- Auth: API key in header `X-API-Key`

Surface the categorical breakdown of DA conditions for the property's
(LGA, zone_code) cohort — what conditions actually get attached to
approved DAs at sites like this.

Response shape:
    {
      "property_id": "...",
      "lga": "Brisbane",
      "zone_code": "LMR",
      "sample_size": 142,        # DAs with categorised conditions
      "top_categories": [
         {"category": "infrastructure_charges", "frequency": 0.87,
          "da_count": 124, "median_charge": 18450.0,
          "typical_measurement": null, "measurement_unit": null},
         {"category": "setback", "frequency": 0.62, "da_count": 88,
          "median_charge": null,
          "typical_measurement": 6.0, "measurement_unit": "m"},
         ...
      ],
      "infrastructure_charge": {
          "median": 17500.0, "average": 19340.0,
          "min": 4200.0, "max": 152000.0, "sample_size": 67
      },
      "data_available": true,
      "message": null
    }

When the cohort is too sparse (no rows for this LGA+zone), returns a
"data_available": false response so the caller can render an empty-
state card rather than raise.

## Query parameters

- `property_id` string, required
- `top_n` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/casaintelligence/apis/casa-intelligence-engine.md) · [All operations](https://skmtc.dev/casaintelligence/apis/casa-intelligence-engine/llms.txt) · [OpenAPI document](https://skmtc.dev/casaintelligence/apis/casa-intelligence-engine/revisions/71d711039de0?raw)