HM Land Registry Use Land and Property Data API
HM Land Registry Use Land and Property Data API from HM Land Registry — 4 path(s) described in OpenAPI.
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OpenAPI Specification
openapi: 3.0.3
info:
title: Use Land and Property Data API
description: >-
RESTful JSON API for the HM Land Registry "Use land and property data"
service. Lists the bulk datasets available in the service, returns dataset
metadata and its resources, returns the history of available files for a
dataset, and mints a signed S3 download URL valid for 10 seconds for a named
file. Datasets reachable through it include UK companies that own property in
England and Wales (CCOD), Overseas companies that own property in England and
Wales (OCOD), the National Polygon Service (NPS) and its sample, Restrictive
Covenants and Registered Leases. An API key is issued automatically on
self-serve account creation and is sent in the Authorization header. Download
endpoints additionally require that the caller has signed the licence for that
specific dataset and, where the dataset is chargeable, paid for it.
version: v1
termsOfService: https://use-land-property-data.service.gov.uk/service-terms-of-use
license:
name: Open Government Licence v3.0
url: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
contact:
name: Use land and property data support
url: https://use-land-property-data.service.gov.uk/contact
x-apievangelist-method: generated
x-apievangelist-generated: '2026-07-26'
x-evidence:
documentation: https://use-land-property-data.service.gov.uk/api-documentation
note: >-
Generated faithfully from the provider's published API technical
documentation, which names each endpoint, its HTTP method and a full
example JSON response body. HM Land Registry does not publish an OpenAPI
description for this service. Every path below was additionally probed
anonymously on 2026-07-26 and returned HTTP 403 with
{"error":"Access denied: You need to provide your API Key to perform this
operation","success":false}, confirming the route exists and is key-gated.
No field, parameter or response was invented beyond what the published
documentation and the live 403 envelope show.
probed: '2026-07-26'
servers:
- url: https://use-land-property-data.service.gov.uk/api/v1
description: Production
security:
- apiKey: []
tags:
- name: Datasets
description: Dataset discovery, metadata and download URL minting.
paths:
/datasets:
get:
operationId: listDatasets
tags:
- Datasets
summary: List available datasets
description: >-
Returns a JSON list of the dataset names and titles that are available in
the service.
responses:
'200':
description: The list of available datasets.
content:
application/json:
schema:
$ref: '#/components/schemas/DatasetListResponse'
example:
result:
- name: ccod
title: UK companies that own property in England and Wales
- name: ocod
title: Overseas companies that own property in England and Wales
- name: nps
title: National Polygon Service
- name: nps_sample
title: National Polygon Service Sample
success: true
'403':
$ref: '#/components/responses/AccessDenied'
/datasets/{dataset_name}:
get:
operationId: getDataset
tags:
- Datasets
summary: Get dataset metadata and resources
description: Returns the metadata of a dataset and its resources.
parameters:
- $ref: '#/components/parameters/DatasetName'
responses:
'200':
description: Dataset metadata.
content:
application/json:
schema:
$ref: '#/components/schemas/DatasetResponse'
example:
result:
description: >-
Download data about UK companies that own land or property in
England and Wales.
external: false
fee: Free of charge
file_count: 1
file_size: 1.23 MB
format: CSV
last_updated: 7 August 2019
licence_id: ccod
name: ccod
private: false
state: active
title: UK companies that own property in England and Wales
type: free
update_frequency: Monthly
version: v1
success: true
'403':
$ref: '#/components/responses/AccessDenied'
/datasets/{dataset_name}/{file_name}:
get:
operationId: getDatasetFileDownloadUrl
tags:
- Datasets
summary: Get a signed download URL for a dataset file
description: >-
Returns a download URL valid for 10 seconds for a specific file in a
dataset. This endpoint will only work if you have agreed to the dataset
licence and have the correct access, which is arranged on the Use land and
property data service.
parameters:
- $ref: '#/components/parameters/DatasetName'
- name: file_name
in: path
required: true
description: The file name of the resource within the dataset.
schema:
type: string
example: CCOD_COU_2019_09.zip
responses:
'200':
description: A short-lived signed download URL.
content:
application/json:
schema:
$ref: '#/components/schemas/DownloadResponse'
'403':
$ref: '#/components/responses/AccessDenied'
/datasets/history/{dataset_name}:
get:
operationId: getDatasetHistory
tags:
- Datasets
summary: List historical resources for a dataset
description: Returns a list of available historical resources for a dataset.
parameters:
- $ref: '#/components/parameters/DatasetName'
responses:
'200':
description: The dataset history.
content:
application/json:
schema:
$ref: '#/components/schemas/DatasetHistoryResponse'
example:
success: true
dataset: ccod
dataset_history:
- file_size: 1.3 MB
filename: CCOD_COU_2019_08.zip
last_updated: August 2019
unsorted_date: 07-08-2019
'403':
$ref: '#/components/responses/AccessDenied'
components:
securitySchemes:
apiKey:
type: apiKey
in: header
name: Authorization
description: >-
The API key issued automatically on account creation, sent as the
Authorization header on every request. Passing Accept: application/json is
also advised.
parameters:
DatasetName:
name: dataset_name
in: path
required: true
description: >-
The dataset name, for example ccod, ocod, nps or nps_sample. CCOD and OCOD
remain the machine names for the renamed UK companies and Overseas
companies datasets.
schema:
type: string
example: ccod
responses:
AccessDenied:
description: >-
Access denied. Returned when no API key is supplied, or when the caller
has not signed the licence for the requested dataset.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
error: >-
Access denied: You need to provide your API Key to perform this
operation
success: false
schemas:
Error:
type: object
properties:
error:
type: string
description: Human readable error message.
success:
type: boolean
description: Always false on an error response.
DatasetSummary:
type: object
properties:
name:
type: string
title:
type: string
DatasetListResponse:
type: object
properties:
result:
type: array
items:
$ref: '#/components/schemas/DatasetSummary'
success:
type: boolean
Resource:
type: object
properties:
file_count:
type: integer
file_name:
type: string
file_size:
type: string
format:
type: string
name:
type: string
row_count:
type: integer
Dataset:
type: object
properties:
description:
type: string
external:
type: boolean
fee:
type: string
file_count:
type: integer
file_size:
type: string
format:
type: string
last_updated:
type: string
licence_id:
type: string
name:
type: string
private:
type: boolean
public_resources:
type: array
items:
$ref: '#/components/schemas/Resource'
resources:
type: array
items:
$ref: '#/components/schemas/Resource'
state:
type: string
tech_spec_url:
type: string
format: uri
title:
type: string
type:
type: string
update_frequency:
type: string
version:
type: string
DatasetResponse:
type: object
properties:
result:
$ref: '#/components/schemas/Dataset'
success:
type: boolean
Download:
type: object
properties:
download_url:
type: string
format: uri
description: Pre-signed S3 URL.
resource:
type: string
valid_for_seconds:
type: integer
example: 10
DownloadResponse:
type: object
properties:
result:
$ref: '#/components/schemas/Download'
success:
type: boolean
HistoryEntry:
type: object
properties:
file_size:
type: string
filename:
type: string
last_updated:
type: string
unsorted_date:
type: string
DatasetHistoryResponse:
type: object
properties:
success:
type: boolean
dataset:
type: string
dataset_history:
type: array
items:
$ref: '#/components/schemas/HistoryEntry'