Anonymising LLC1 and CON29 Local Authority Search Results – UK GDPR-compliant anonymisation per UK GDPR
A local authority search comprises the LLC1 (Local Land Charges Register search) and the CON29 enquiries of the local authority, which together disclose planning history, road agreements, enforcement notices, and financial charges on a property — many of which reference named individuals as applicants, owners, or notice addressees. anonym.legal pseudonymises those personal identifiers while preserving the substantive search results and local authority responses.
When this applies
This task applies when LLC1 and CON29 search results are shared with a purchaser's advisers, a funder, or a third-party consultant who needs the planning and local-charge information but has no legitimate need to know the identities of the named individuals referenced in those results.
How anonym.legal handles it
- Upload the LLC1 and CON29 search results (typically received as a combined PDF from the local authority or a personal search company).
- The engine identifies named individuals in local land charges (e.g. financial charges naming individuals), planning enforcement notices, and listed-building or conservation-area notices.
- Each natural person is pseudonymised consistently; planning references, road adoption status, drainage agreements, and the substance of any enforcement notices remain in clear text.
- A mapping table is produced with UK/EU data residency.
- Release the pseudonymised search results for review; the originals should be retained and provided to the lender if required.
- Re-identify via the mapping key before any formal lender or regulatory submission.
What you provide
- LLC1 Local Land Charges search certificate
- CON29 enquiries of the local authority (standard and any optional questions)
- CON29O optional enquiries (if raised)
Limitations & cautions
- Local authority searches have a limited validity period; ensure the search is current before relying on the results for exchange.
- The tool pseudonymises personal identifiers in search results but does not advise on the planning or legal implications of any entries — obtain conveyancing advice.
- Personal search companies' results are not official local authority documents; the same pseudonymisation approach applies but confirm accuracy with the search provider.
FAQ
Are planning enforcement notices pseudonymised in the CON29 results?
Named individuals in enforcement notices (e.g. the notice addressee) are pseudonymised. The enforcement notice reference number, breach description, and compliance status are preserved.
Do local authority financial charges (e.g. council improvement grants) name individuals?
Some local land charges (such as improvement grants under housing legislation) may name the property owner or grant recipient. Those individuals are pseudonymised while the charge amount and purpose are preserved.
Can I process local authority searches for multiple properties in a portfolio transaction?
Yes. Upload all search results in a batch. The engine tracks individuals who may appear across multiple searches (e.g. a landlord owning several portfolio properties) and applies consistent pseudonyms.