Article 4 Directions
Dataset Created
07/12/2021
Licence
Open
Contact
Improvement Service
Last Updated
15/01/2026
Data Provided by
Improvement Service
Alternative Name
a4d
Lineage
This dataset was amalgamated, optimised and published by the Spatial Hub. This is an amalgamation of two prior datasets, Conservation Areas and Article 4 Directions, which in many cases overlap equally. These cases are assumed to indicate Conservation Areas with associated Article 4 Directions and the duplicate areas are removed as Article 4 Directions prior to amalgamation of these two datasets.The following quality assurance checks and corrections are carried out on the data: - Polygons are not dissolved/ aggregated by key name and local authority.- The minimum polygon area allowed in the data is 5 square metres- Checks for invalid geometry types- The maximum angle for any spikes is 3 degrees- Any duplicate geometry is removed from the data- Duplicate key names for polygons are not removed- Polygons with no key names are not removed- Checks for basic geometry i.e. self-intersectionPlease contact spatialhub@improvementservice.org.uk for more details.
SSDI Link (External Site)
Frequency of Update
as needed
Formats:
WFS
| Format | Last Updated | |
|---|---|---|
| CSV | 16/01/2024 | |
| WFS | 16/01/2024 | |
| WMTS | 16/01/2024 | |
| Shapefile | 16/01/2024 |
| Attribute Info | Deskripsi | Specification |
|---|---|---|
| site_ref | The site reference identifier as defined by the LA | Can be text, number or both currently. No standards seem to exist for this as yet |
| site_name | The name of the site as defined by the LA | Text name with capitals for first letter (max 100 characters) without area descriptor |
| local_authority | The LA/NP that supplied the data. | Should use the exact name as it appears in the local authority sct register. |
| policy_ref | The policy reference as assigned by the LA | Usually relates to LDP |
| policy_url | Website with additional details about the policy and/ or area | Text string |
| date_designated | Date on which the area was designated | Date. In format: yyyy-mm-dd |
| status | The status of the site | Text description (defined categories would be better in future) |
| restrictions | Restrictions on development, if specified | Text description with some associated classifications relating to the General Permitted Development Order (Scotland) 1992 or the order in force at the time. |
| sh_date_uploaded | Date on which the data was provided to the Spatial Hub. | Date. Auto-generated by Spatial Hub upon dataset registration. In format:yyyy-mm-dd |
| sh_src | Unique reference assigned to the LA/NP upload file. Used for reporting any issues back to LA. | Text String. Auto-generated by Spatial Hub upon dataset registration. |
| sh_src_id | ID for each record per Spatial Hub upload. Used for reporting any issues back to LA/NP. | Integer. Auto-generated by Spatial Hub upon dataset registration. |
| la_s_code | 9-digit alpha/numeric unique ID, beginning with S (for Scotland), for the geographical area of each LA/NP. | Alphanumeric Text String. Auto-generated by Spatial Hub using current list from: https://statistics.gov.scot/resource?uri=http%3A%2F%2Fstatistics.gov.scot%2Fdata%2Fstandard-geography-code-register |