# 5 Chatterton Road, Bromley (Class MA - storage extension into existing flat)

- **Decision:** dismissed, 28 August 2026
- **Decided by:** Planning Inspector: H Whitfield
- **Authority:** Bromley (London)
- **Appeal reference:** 6009412
- **Application reference:** 26/01029/NOT
- **Procedure:** written-representations
- **Development:** Class MA prior approval to change a commercial storage extension into additional rooms for the adjoining flat
- **Site context:** inside-settlement
- **Green Belt:** no
- **Framework applied:** No Framework version cited
- **Determinative policies:** GPDO Sch2 Pt3 Class MA
- **Main issues:** scope of Class MA
- **Tags:** tier-2, prior-approval, class-ma, framework-not-cited

## Summary
An attempt to use Class MA to absorb a commercial side extension into an existing flat was dismissed. Class MA grants rights to create new dwellinghouses, not to enlarge existing ones (DL ¶14-17). The Framework is not cited.

## What made the difference
No new dwelling would be created. The inspector followed a 2024 appeal reading of the 2021 Explanatory Memorandum (DL ¶13-15).

## Policy findings
- **GPDO Sch2 Pt3 Class MA: not-engaged.** Class MA covers creating new dwellinghouses, not enlarging an existing one (DL 11-17, following APP/U5360/W/23/3328874)

## Key facts
- Appellant had been advised by enforcement officers to submit a retrospective planning application instead (DL 16)
- Framework not cited

## Sources
- https://appeal-planning-decision.service.gov.uk/comment-planning-appeal/appeals/6009412
- https://appeal-planning-decision.service.gov.uk/published-document/9b84ddce-a810-4573-844b-af1fee822ef9

---

Source: https://planningdistilled.org/research/england/nppf-navigator/decisions/PINS-6009412.html

A summary of a public planning decision, written from the decision letter. Not legal advice. © Planning Distilled. Released under the Creative Commons Attribution 4.0 licence (https://creativecommons.org/licenses/by/4.0/): share and adapt freely, with credit to Planning Distilled. Quotations from decision letters, plans and the Framework remain the copyright of their publishers.