Property Intelligence

Independent API for England property and planning intelligence: property overviews, constraint checks, planning application searches, and site reports using the official Planning Data API.

{
  "uprn": "10008315764"
}

{
  "retrievedAt": "2026-10-29T12:00:00.000Z",
  "overview": {
    "input": {
      "uprn": "10008315764"
    },
    "totalEntities": 3,
    "byDataset": {
      "conservation-area": [
        {
          "name": "Trafalgar Square",
          "dataset": "conservation-area",
          "reference": "CONARA/1300",
          "start-date": "2008-02-21",
          "point": "POINT (-0.126727 51.508303)"
        }
      ],
      "listed-building": [
        {
          "name": "10 Downing Street",
          "dataset": "listed-building",
          "reference": "123456",
          "start-date": "1970-01-01",
          "listed_building_grade": "Grade I",
          "point": "POINT (-0.1276 51.5031)"
        }
      ]
    }
  },
  "sources": [
    {
      "source": "Planning Data API",
      "url": "https://www.planning.data.gov.uk/entity.json",
      "retrievedAt": "2026-10-29T12:00:00.000Z"
    }
  ],
  "limitations": [
    "Data coverage varies by local planning authority.",
    "An absence of results does not mean no constraints exist.",
    "UPRN queries are more precise than coordinates for registered properties."
  ]
}

curl -i -X POST "https://brainiac.software/api/v1/property-intelligence/overview" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "uprn": "10008315764"
}
JSON

{
  "latitude": 51.5074,
  "longitude": -0.1278
}

{
  "retrievedAt": "2026-10-29T12:00:00.000Z",
  "constraints": {
    "input": {
      "latitude": 51.5074,
      "longitude": -0.1278
    },
    "datasetsQueried": [
      "conservation-area",
      "listed-building",
      "green-belt",
      "flood-risk-zone"
    ],
    "totalConstraints": 2,
    "constraints": [
      {
        "name": "Trafalgar Square",
        "dataset": "conservation-area",
        "reference": "CONARA/1300",
        "startDate": "2008-02-21",
        "documentUrl": "https://www.westminster.gov.uk/media/document/trafalgar-square-conservation-area-audit-spg",
        "point": "POINT (-0.126727 51.508303)"
      },
      {
        "name": "10 Downing Street",
        "dataset": "listed-building",
        "reference": "123456",
        "startDate": "1970-01-01",
        "documentUrl": "https://historicengland.org.uk/listing/the-list/list-entry/123456",
        "point": "POINT (-0.1276 51.5031)",
        "listedBuildingGrade": "Grade I"
      }
    ]
  },
  "sources": [
    {
      "source": "Planning Data API",
      "url": "https://www.planning.data.gov.uk/entity.json",
      "retrievedAt": "2026-10-29T12:00:00.000Z"
    }
  ],
  "limitations": [
    "Data coverage varies by local planning authority.",
    "An absence of results does not mean no constraints exist.",
    "UPRN queries are more precise than coordinates for registered properties."
  ]
}

curl -i -X POST "https://brainiac.software/api/v1/property-intelligence/constraints/check" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "latitude": 51.5074,
  "longitude": -0.1278
}
JSON

{
  "startDateYear": 2025,
  "startDateMonth": 5,
  "startDateDay": 1,
  "startDateMatch": "since",
  "limit": 50
}

{
  "retrievedAt": "2026-10-29T12:00:00.000Z",
  "applications": {
    "filters": {
      "localPlanningAuthority": null,
      "startDate": "2025-5-1",
      "startDateMatch": "since"
    },
    "totalApplications": 50,
    "limit": 50,
    "offset": 0,
    "applications": [
      {
        "name": "Erection of two-storey rear extension",
        "reference": "APP/2025/00123",
        "dataset": "planning-application",
        "startDate": "2025-05-15",
        "address": "123 Main Street, London",
        "point": "POINT (-0.1278 51.5074)"
      }
    ]
  },
  "sources": [
    {
      "source": "Planning Data API",
      "url": "https://www.planning.data.gov.uk/entity.json",
      "retrievedAt": "2026-10-29T12:00:00.000Z"
    }
  ],
  "limitations": [
    "Planning applications data is still subject to development and coverage limitations.",
    "Local planning authorities are not currently required to share application data to this specification.",
    "Do not claim complete coverage of planning applications."
  ]
}

curl -i -X POST "https://brainiac.software/api/v1/property-intelligence/planning/search" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "startDateYear": 2025,
  "startDateMonth": 5,
  "startDateDay": 1,
  "startDateMatch": "since",
  "limit": 50
}
JSON

{
  "uprn": "10008315764",
  "includeBrownfield": true,
  "includePlanningApplications": true
}

{
  "retrievedAt": "2026-10-29T12:00:00.000Z",
  "report": {
    "input": {
      "uprn": "10008315764"
    },
    "totalEntities": 15,
    "byDataset": {
      "conservation-area": [
        {
          "name": "Trafalgar Square",
          "dataset": "conservation-area"
        }
      ],
      "listed-building": [
        {
          "name": "10 Downing Street",
          "dataset": "listed-building"
        }
      ],
      "brownfield-land": [
        {
          "name": "Former Industrial Site",
          "dataset": "brownfield-land"
        }
      ],
      "planning-application": [
        {
          "name": "New Development",
          "dataset": "planning-application"
        }
      ]
    },
    "summary": {
      "constraints": 2,
      "brownfieldSites": 1,
      "planningApplications": 12
    }
  },
  "sources": [
    {
      "source": "Planning Data API",
      "url": "https://www.planning.data.gov.uk/entity.json",
      "retrievedAt": "2026-10-29T12:00:00.000Z"
    }
  ],
  "limitations": [
    "Data coverage varies by local planning authority.",
    "An absence of results does not mean no constraints exist.",
    "Planning applications data is still subject to development and coverage limitations.",
    "Do not claim complete coverage of planning applications.",
    "Brownfield land coverage varies by local planning authority data sharing."
  ]
}

curl -i -X POST "https://brainiac.software/api/v1/property-intelligence/site/report" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "uprn": "10008315764",
  "includeBrownfield": true,
  "includePlanningApplications": true
}
JSON