Planning constraints → Green Belt
Renewable schemes in the Green Belt: what the record shows
Of 154 solar farms decided since 2018 inside Green Belt in England, 90% were approved — about the same as the 94% outside it. On these numbers the designation carries no measurable penalty at all, which is worth knowing before you rule a site out.
What the designation is
Green Belt is not a landscape or an ecological designation and says nothing about the quality of the land inside it. Its purpose is to keep land permanently open — to check urban sprawl, stop neighbouring towns merging, safeguard the countryside from encroachment, preserve the setting of historic towns, and push regeneration back onto previously developed land. Around a tenth of England is designated, in belts around the major conurbations.
The policy test: Development in the Green Belt is "inappropriate" by default and should be refused except in very special circumstances, which exist only where the harm to the Green Belt and any other harm is clearly outweighed by other considerations. For renewable energy the National Planning Policy Framework is explicit that the wider environmental benefits of renewable generation can be part of those very special circumstances — which is why schemes here are refused more often than elsewhere but are still approved more often than not.
What actually happened, in decisions since 2018
| Technology | Decided inside | Approved inside | Approved outside | Difference |
|---|---|---|---|---|
| Solar · ground-mounted | 154 | 90% | 94% | -4 pts |
| Battery storage | 219 | 90% | 92% | -2 pts |
| Onshore wind | 3 | — | — | too few |
A rate is withheld below 20 recorded decisions, because a percentage from a handful of cases is noise dressed as evidence. England only — that is where the boundaries are published. Restricted to decisions from 2018 on: pooling every year mixes planning regimes, and for some designations the gap has moved a long way since. The overview page shows both windows side by side.
Where the national average stops being useful
The same designation is not administered the same way everywhere. These are the authorities holding the most schemes inside the Green Belt, and how they decided them.
Solar
| Dorset | 16 decided | 100% approved |
| South Gloucestershire | 15 decided | 87% approved |
| Central Bedfordshire | 13 decided | 92% approved |
| Bournemouth, Christchurch and Poole | 10 decided | 90% approved |
| Rushcliffe | 10 decided | 90% approved |
| York | 10 decided | 90% approved |
Battery storage
| South Staffordshire | 14 decided | 93% approved |
| Rotherham | 11 decided | 100% approved |
| South Gloucestershire | 11 decided | 91% approved |
Authorities with fewer than 10 decided schemes inside the designation are left out entirely.
If it is refused here
Solar: 96 schemes inside the Green Belt were refused, 38 appealed (40%), 34 appeals reached a decision and 29% succeeded.
Battery storage: 71 schemes inside the Green Belt were refused, 33 appealed (46%), 33 appeals reached a decision and 88% succeeded.
Developers appeal the cases they expect to win and drop the rest, so read the success rate as the rate among chosen appeals, never among all refusals. Withdrawn and pending appeals are excluded.
Common questions
Can you get planning permission for a solar farm in the Green Belt?
Of 154 solar farms decided since 2018 inside Green Belt in England, 90% were approved — about the same as the 94% outside it. So it is harder, and it is not a prohibition. Development in the Green Belt is "inappropriate" by default and should be refused except in very special circumstances, which exist only where the harm to the Green Belt and any other harm is clearly outweighed by other considerations. For renewable energy the National Planning Policy Framework is explicit that the wider environmental benefits of renewable generation can be part of those very special circumstances — which is why schemes here are refused more often than elsewhere but are still approved more often than not.
How is this figure calculated?
By joining two open government datasets: the Renewable Energy Planning Database, which records the outcome and location of every renewable scheme of roughly 150 kW and above, and planning.data.gov.uk, which publishes the designation boundaries. Each scheme’s coordinate is tested against each boundary. Nothing is modelled — it is a count of what was decided.
What does this figure not tell me?
It is an association, not a cause. Sites are not randomly assigned to designations, so a scheme inside one usually differs from one outside in size, siting and how much work went into the application. The planning database also gives one representative coordinate per scheme rather than a red-line boundary, the boundaries are published for England only, and for solar only ground-mounted schemes are counted. It calibrates the size of the hill; it does not predict your application.
The boundary matters more than the map. Enter a postcode or coordinates and we check which designations contain that exact point, alongside the local authority's own record, the land grade, flood risk, topography and grid context.
All constraintsApproval rates by councilSolar planning guide
Sources: Renewable Energy Planning Database (DESNZ, Open Government Licence v3.0) for outcomes; planning.data.gov.uk (MHCLG, Open Government Licence) for the Green Belt boundaries. England only. Recomputed from the current data on every rebuild.
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