- Decision
- allowed, 1 September 2026
- Decided by
- Planning Inspector: R Gravett
- Authority
- Sefton (North West)
- Appeal reference
- 6010397
- Application reference
- DC/2025/01256
- Procedure
- written representations
- Development
- First-floor extension to form a two-bed flat above a hairdresser's
- Homes
- 1
- Site context
- inside settlement, conservation area, near station
- Green Belt
- No
- Framework applied
- August 2026 NPPF
- Determinative policies
- S4(1), L2, CC2(2), TC2
- Development plan policies
- A Local Plan for Sefton 2017 SD2
- Main issues
- effect on neighbouring solar panels
Summary
A first-floor flat above a single-storey hairdresser's in Birkdale village centre. The council refused it because it would shade the Post Office's solar panels next door. Allowed. The inspector found moderate harm to the panels' operation, which conflicted with local plan SD2 and cut against CC2(2). But under S4, one new home using airspace above a commercial unit (L2, substantial weight) was not "substantially outweighed". The Framework, "a material consideration of critical importance", justified departing from the plan.
Issues and findings
- Transition. "The Framework is a material consideration of critical importance which should be taken into account from the day of publication" (DL ¶2).
- Solar shading: moderate harm. The evidence was thin, but "Policy DM2 … states that additional information … should be proportionate … there would unlikely be a total, or even significant, loss in operation or performance" (DL ¶10). Conclusion: "a moderate harmful effect" (DL ¶11).
- CC2(2). The harm "would fail to accord with Policy CC2 paragraph 2 … which requires that substantial weight be given to the benefits of improving the energy efficiency of existing buildings, including through the installation of solar panels" (DL ¶20).
- TC2. No evidence the Post Office would close. TC2 "recognises that [vitality] can be achieved through … provision of residential accommodation" (DL ¶21).
- L2. "substantial weight to the benefits of creating additional homes within settlements by using the airspace above existing commercial premises" (DL ¶22).
Planning balance
S4(1): "the benefit of creating an additional home in this location would not be substantially outweighed by the harmful effect on the operation of the solar panels … although I have found conflict with the development plan, the Framework is a material consideration of critical importance which indicates planning permission should be granted" (DL ¶23).
What made the difference
The harm was moderate, not significant, and the benefit engaged L2's specific airspace limb. The inspector used S4 as the material consideration overriding a plan conflict. Significant loss of solar output, or evidence of a threat to the Post Office, could have tipped the balance.
Transferable points
- Loss of a neighbour's solar output engages CC2(2), but moderate shading does not substantially outweigh an L2 airspace home (DL ¶20-23).
- S4 can justify departing from the development plan (DL ¶23, 28).
- DM2 proportionality means a small scheme is not refused for incomplete technical evidence where the likely effect can be judged (DL ¶10).
- Appeal-stage evidence may be refused where neighbours have not seen it, even if the council has (DL ¶4).
Policy findings
Policy codes are those of the National Planning Policy Framework (August 2026) unless a development plan is named.
| Policy | Finding | Weight | Note |
|---|---|---|---|
| CC2(2) | harm | moderate harm to operation of neighbour's (Post Office) roof solar panels through shading; conflicts with CC2(2) substantial weight to solar installations (DL 6-11, 20) | |
| L2 | benefit | substantial | new home using airspace above commercial premises, consistent with street scene, acceptable living standards (DL 22) |
| TC2 | benefit | residential intensification supports centre vitality; no evidence the Post Office would close (DL 21) | |
| DM2 | neutral | information should be proportionate; incomplete solar evidence not fatal for a small scheme (DL 10) | |
| S4(1) | pass | moderate solar harm does not substantially outweigh one airspace home; Framework outweighs plan conflict (DL 19, 23) |
Key facts
- Only conflict was with Sefton SD2 (climate change / best use of resources) due to shading of neighbour's panels
- Appeal-stage solar evidence rejected as neighbours may not have seen it
- In Birkdale Village CA; design matches the adjoining house, CA preserved
Sources
This note is one of the decisions behind the NPPF 2026 Navigator, which shows how each Framework test has been applied across all the decisions in the database. Also available as Markdown.