- Decision
- dismissed, 8 September 2026
- Decided by
- Planning Inspector: S Hartley
- Authority
- Calderdale (Yorkshire and the Humber)
- Appeal reference
- 6014250
- Application reference
- 26/00306/HSE
- Procedure
- householder
- Development
- Single-storey full-width front extension
- Site context
- green belt, valued landscape, listed building setting
- Green Belt
- Yes
- Framework applied
- August 2026 NPPF
- Determinative policies
- DP3
- Development plan policies
- Calderdale Local Plan 2018/19-2032/33 BT1, GN4, Calderdale Placemaking and Design Guide SPD 2024
- Main issues
- Green Belt; character and appearance; Special Landscape Area; heritage
Summary
A small full-width front extension to a stone terraced cottage in the Calderdale Green Belt. It was not inappropriate: an increase of about one fifth on an unextended original is not disproportionate under GB7(1)(b). It was dismissed on design (DP3) and minor harm to the Special Landscape Area.
Issues and findings
- Transition. The Framework is of "critical importance", but it "has not materially changed the assessment in this appeal", so the parties were not consulted (DL ¶2).
- GB7(1)(b): PASS. "I find that the proposal would not constitute a disproportionate addition to the original building" (DL ¶10).
- Design / DP3: FAIL. "it would have a significantly harmful effect upon the pleasing rhythm of the terrace, and would interrupt its building line" (DL ¶13).
- Heritage: neutral. No objective evidence that the terrace is a non-designated heritage asset (DL ¶¶23–24).
Planning balance
Development plan conflict on design and SLA was "of overriding concern" (DL ¶25).
What made the difference
Green Belt passed easily. Design against a uniform terrace decided the case.
Transferable points
- An increase of about 20% on an unextended original building is not disproportionate (DL ¶¶9–10).
- A Council's claim of non-designated heritage asset status needs objective evidence (DL ¶23).
Policy findings
Policy codes are those of the National Planning Policy Framework (August 2026) unless a development plan is named.
| Policy | Finding | Weight | Note |
|---|---|---|---|
| GB7(1)(b) | pass | 7.2 sqm on c.34 sqm unextended original (about one fifth) → not disproportionate (DL 5-11) | |
| DP3 | fail | full-width front extension breaks rhythm and building line of uniform stone terrace (DL 12-15) | |
| Calderdale GN4 (Special Landscape Area) | harm | minor adverse impact on Luddenden Dean SLA (DL 16-19) | |
| HE5 | neutral | no effect on Grade II Broadfold Hall or Lower Holme House; terrace not shown to be a non-designated heritage asset (DL 20-24) |
Key facts
- Original dwelling c.34 sqm GEA over two floors, never extended; extension 7.2 sqm
- Uniform stone terrace; neighbours have small porches, not full-width additions
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.