Sian Brown.
Active — last recorded decision May 2026
A case officer at Hammersmith And Fulham with an approval rate of 89% across 173 decided planning applications, spanning 13 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.
Topic mentions per 1,000 words of their own report text (boilerplate stripped), indexed against all parsed Hammersmith And Fulham reports. Attention, not stance.
Mark = borough average (1×). Bar capped at 2×.
Brown's caseload includes a notable share of conversion applications requiring full assessment against London Plan/DCLG space standards, and she is one of the more structurally thorough coded officers, running a full numbered section report (Land Use, Quality of Accommodation, Design and Heritage, Amenity Impact, Noise, Highways and Transportation, Air Quality) for larger schemes rather than the compressed checklist most colleagues use. On unit conversions with a marginal shortfall against space standards, she is willing to approve where the shortfall is small (e.g. 1sqm) and the flat's overall size and quality otherwise justify it, explicitly reasoning that refusal 'for this reason only' would be unreasonable.
· structures larger applications (conversions, HMO losses) as full numbered sections mirroring a committee report format (Land Use, Quality of Accommodation, Design and Heritage, Amenity Impact, Noise, Highways and Transportation, Air Quality) rather than a compressed checklist
· on marginal space-standard shortfalls in a converted unit (e.g. a bedroom falling 1sqm short), weighs the overall size and quality of the flat and concludes refusal 'for this reason only' would be unreasonable
· cross-checks whether an affected neighbour has confirmed in writing their support and their own intention to build an approved extension that would itself screen the affected window, treating that as reducing the practical amenity harm
· whether a converted unit's overall GIA and individual room sizes meet or exceed the minimum requirements, and whether any shortfall is marginal enough that refusal 'for this reason only' would be unreasonable
· whether an affected neighbour has confirmed in writing their support for the application, including any of their own future works that would independently mitigate the impact
· the specific numbered heading (Land Use, Quality of Accommodation, Design and Heritage, Amenity Impact, Noise, Highways, Air Quality) most relevant to a particular impact
“Given the shortfall for the bedroom would be marginal (1sqm), and in view of the overall size and quality of the flat it would be unreasonable to refuse planning permission for this reason only.”
2021/03078/FUL
“No. 32 have confirmed in writing that they support the application and that they intend to build their ground floor extension approved under (2021/01935/FUL) which would in any case screen the window”
2021/02286/FUL
Measured from 64 published Hammersmith And Fulham officer reports written by this officer, with recited policy boilerplate stripped before any counting. These describe how this officer works and writes — they are not outcome predictions. Every quote is from a named public report.
The policies this officer cites most in their own reports — times cited across 64 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.
Show all 13 rows
Where this officer's caseload concentrates, 2020–26.[1] Click the map above to focus this page on a ward, or a row to open the ward.
- [1]Applications decided, approval rate, per-year trend and ward breakdown — London Borough of Hammersmith And Fulham planning register and published decision notices, 2020–26. · methodology
- [2]Appeal overturn and decision-time benchmarks — Planning Inspectorate (PINS) appeal decisions and application date pairs; not yet computed per officer, shown as a dash until they are. · PINS appeals casework
- [3]Condition load — mean effective conditions attached to Hammersmith And Fulham decision notices (grant/split), parsed from the published notice text; a borough figure, not yet split per case officer.
- [4]"How this officer decides", the policy playbook and all quotes — parsed from 64 published Hammersmith And Fulham officer reports written by this officer, recited policy boilerplate stripped before counting; disposition text coded from their own reasoning with every quote machine-verified verbatim. Descriptive of how they work — not outcome predictions.