- Decision
- dismissed, 24 August 2026
- Decided by
- Planning Inspector: N Unwin
- Authority
- Chesterfield (East Midlands)
- Appeal reference
- 6009578
- Application reference
- CHE/26/00071/HOU
- Procedure
- householder
- Development
- First-floor rear extension over existing single-storey extension (non-determination)
- Site context
- inside settlement
- Green Belt
- No
- Framework applied
- August 2026 NPPF
- Determinative policies
- Chesterfield LP CLP14, P3(2)(a)
- Development plan policies
- Chesterfield Borough Local Plan 2020 CLP14, CLP20, Successful Places SPD 2013
- Main issues
- living conditions of future occupiers and neighbours
Summary
A first-floor rear extension was dismissed. The harm was not to the neighbour, where departing from the 45-degree guidance was justified, but to the extension's own occupiers. A bedroom lit only by an obscure-glazed window facing a flank wall would have an "exceptionally poor outlook" (DL ¶4).
What made the difference
The internal layout of bedroom 2. The appeal was lost on future-occupier amenity even though the neighbour supported it.
Policy findings
Policy codes are those of the National Planning Policy Framework (August 2026) unless a development plan is named.
| Policy | Finding | Weight | Note |
|---|---|---|---|
| P3(2)(a) | fail | bedroom 2's only window obscure-glazed and facing No 15's flank — "exceptionally poor outlook" (DL 4), under CLP14/CLP20 | |
| P3(2)(b) | pass | marginal 45-degree breach acceptable to depart from given existing extension, low roof, lower ground (DL 6-7) |
Key facts
- Would create five first-floor bedrooms
- Neighbour No 15 supported the scheme
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.