Sample Plan Check report.
14 Example Road, Acton W3 — Victorian mid-terrace, 1895, not in a conservation area, no Article 4
8
Clear
3
Watch
1
Red flag
Verdict
A rear dormer loft conversion and a 3 m single-storey rear extension are both likely permitted development. A 6 m extension would need prior approval. We recommend a Lawful Development Certificate for both.
01Options
Rear dormer loft (38 m³)
PD · Class B · within 40 m³
3 m rear extension
PD · Class A
6 m rear extension
Prior approval · 42-day neighbour consultation
Side-return + rear wrap-around
Full planning
02Precedents within 150 m (3 years)
7 rear dormers
7 approved / LDC granted
4 rear extensions 3–4 m
4 approved
2 rear extensions 5–6 m
1 approved, 1 refused (daylight)
03Risks
Party wall
Both neighbours — notices required
Building regulations
Stairs, fire doors, steel — standard
Trees / flood
None flagged
04Cost and time
Loft dormer
£48,000–68,000 · 8–12 weeks
3 m rear extension
£42,000–65,000 · 10–14 weeks
Illustrative example. Indicative assessment prepared from client-supplied information and public records. Not a structural survey or formal planning advice.
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