- Decision
- dismissed, 2 September 2026
- Decided by
- Planning Inspector: Eleni Marshall
- Authority
- West Northamptonshire (East Midlands)
- Appeal reference
- 6009933
- Application reference
- 2025/4860/FUL
- Procedure
- written representations
- Development
- Increase of 8-occupant HMO to 10 occupants, including loft conversion and full-width flat-roof rear dormer
- Site context
- inside settlement
- Green Belt
- No
- Framework applied
- August 2026 NPPF
- Determinative policies
- DP3
- Development plan policies
- West Northamptonshire Joint Core Strategy H1, BN9, Northampton Local Plan Part 2 2023 Q1, Q2, HMO SPD 2019 Principle 1
- Main issues
- character and amenity; dormer design; overlooking
Summary
Proposal to take an 8-person HMO to 10 persons with a full-width rear dormer, in a street of family houses. Dismissed on character/amenity from intensified use, the dormer's design, and overlooking. The Inspector did not consult on the new Framework because it "do[es] not substantially alter matters" (DL ¶2). DP3 was cited once as an additional conflict (DL ¶13).
What made the difference
Evidence of existing complaints about noise and ASB at the site distinguished it from the Council's other HMO uplift approvals: "there are material differences in the evidence" (DL ¶9). The dormer extended over the side extension, so it went beyond what PD would allow, and the fallback carried limited weight (DL ¶17).
Policy findings
Policy codes are those of the National Planning Policy Framework (August 2026) unless a development plan is named.
| Policy | Finding | Weight | Note |
|---|---|---|---|
| DP3 | fail | intensified HMO occupation out of character with family-house street; evidence of existing noise/ASB complaints (DL 6-13) | |
| P3 | fail | overlooking from dormer and more intensive loft occupation harms neighbours (plan policy H1, not P3 by name) (DL 19-21) |
Key facts
- Extant permission already took the HMO from 6 to 8; this was a further incremental increase to 10
- Documented neighbour complaints of noise and antisocial behaviour distinguished the appellant's comparator approvals
- Dormer spanned original roof and two-storey side extension, so PD fallback given limited weight
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.