Local Nature Reserves (LNR)
What it is
Local Nature Reserves (LNRs) are places of local importance for wildlife, geology, education, or quiet enjoyment, declared by local authorities under section 21 of the National Parks and Access to the Countryside Act 1949. To declare an LNR, the authority must hold a legal interest in the land (own it or hold a controlling lease/agreement).
LNRs are the local-tier cousin of National Nature Reserves — and the two are constantly confused. The essential contrast: an NNR is nationally important and always an SSSI; an LNR is locally important, council-declared, and usually not an SSSI.
How it's produced
LNRs are declared by individual local authorities; the national dataset is aggregated and published by Natural England. Because the declaring bodies are many, attribute completeness and boundary vintage can vary between authorities.
Update frequency & currency
Updated as authorities declare new reserves; the aggregate is refreshed periodically. Currency varies by declaring authority.
Spatial resolution / precision
Boundaries reflect what each authority supplied — generally good, but less uniformly rigorous than a statutory SSSI boundary.
Known limitations
- Local, not statutory-strength. An LNR is a valued local designation, but it does not carry SSSI-level protection unless an SSSI also happens to be present.
- Variable data quality across declaring authorities.
How it compares to NNR
See the comparison table on the NNR profile. One line: NNR = national + always SSSI; LNR = local + council-declared + usually not SSSI.
Role in BNG assessment
In WildStack's stack, LNR is briefing-pack context only — it informs the narrative around a site but does not fire a trigger and does not contribute habitat parcels or condition. It signals local ecological value worth noting, not a hard statutory constraint.
LNRs are easy to under- or over-weight. Over-weighted, they get mistaken for statutory sites with teeth they don't have. Under-weighted, they get ignored — but a council-declared reserve often reflects genuine local ecological value and a politically engaged community, both of which matter to how a scheme is received. We treat LNRs as context, not constraint: worth surfacing in a briefing so nobody is blindsided at committee, but never presented as if they carried SSSI-grade protection. Precision about what a designation is — and isn't — is the whole point of this knowledge base.
Official source
Last reviewed
5 July 2026. Revisit if the LNR framework changes or if aggregation responsibility moves. Confirm the exact data.gov.uk resource URL at review.