Development Intent
AtlasMertonOfficersCharlotte Gilhooly
Case officer · Merton Planning

Charlotte Gilhooly.

Active — last recorded decision May 2026

A case officer at Merton with an approval rate of 93% across 568 decided planning applications, spanning 19 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer568 decisions93% approvalSave
Merton · ward map
Approval rate — by ward
Lower ~68%
Higher ~90%
ShowingAll years · subscriber →across all years on record — a period re-scopes the headline figures and the trend
At a glanceEach metric links to the investigation behind it
All investigations →
568
Applications
2020–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%94%202090%202194%202295%202394%202492%2025100%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compareVersus peers
Approval rate93% · 4th of 17
higher is betterdashed = London avg
Decision time · publishes with decision notices
in development
Appeal overturn · publishes with decision notices
in development
How this officer decides — from their own reports371 officer reports parsed
8%
Approves despite concerns
of approvals record a documented reservation
1%
Negotiated approvals
approvals mentioning revisions/amendments
17%
"On balance" reports
reports using explicit balancing language
77%
Bespoke reasoning
of report text written for the case, not recited
What they write about — vs Merton's average officer

Topic mentions per 1,000 words of their own report text (boilerplate stripped), indexed against all parsed Merton reports. Attention, not stance.

Daylight & sunlight
3.15× borough avg
Privacy & overlooking
2.26× borough avg
Character & heritage
1.99× borough avg
Materials & detailing
1.69× borough avg
Bulk & massing
1.21× borough avg

Mark = borough average (1×). Bar capped at 2×.

How they reason — coded from their reports

Gilhooly's caseload is dominated by approvals of householder extensions, outbuildings and shopfront/heritage alterations, and her reports are notable for measuring EVERY proposal's exact depth and height to two decimal places before any qualitative design judgement, and for structuring conservation-area assessments around a two-part test — visual prominence from the public realm first, then impact on the specific designated heritage asset second. Refusals are comparatively rare in her sample and concentrate on cases where a housing scheme's Standard-of-Accommodation shortfall (undersized amenity space, poor outlook) compounds a design concern, rather than design alone.

Observable habits

· states the exact depth and height of every extension to the decimetre (e.g. '4.5m in depth... height of 2.9m/4.05m') before any qualitative design judgement is reached

· for conservation-area/heritage schemes, splits the assessment into visual prominence from the public realm FIRST, then impact on the specific designated heritage asset second, as two distinct sequential tests

· checks each affected neighbour's OWN existing extension/depth as the direct comparator before judging daylight/sunlight/enclosure impact, citing the specific extant permission reference where one already exists at that neighbour's own property

What their reports consistently look for

· the precise measured depth and height of the proposal set against the specific neighbouring property's own existing extension or extant permission

· whether a heritage asset (locally listed building, conservation area) is affected, assessed as a discrete second test after public-realm visibility

· whether internal floor areas and outdoor amenity space meet the London Plan/NDSS minimum standards table for the relevant unit size

Assigned Charlotte Gilhooly on a live case?What they pay attention to, how they reason, and what their reports consistently look for — so you can address it before they raise it.Subscribe to unlock →
In their own words

Number 321 to the north has an extant prior approval for a 6.0 m deep single storey rear extension and therefore this could be implemented. The current proposal would be less depth than this extension and officers are satisfied that the proposal would not cause material harm to number 321

20/P0161

At 4.5m in depth, the proposed single storey rear extension and rear terrace is considered in keeping with the scale form, proportions and appearance of the original building and surrounding area

20/P0161

Measured from 371 published Merton 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.

Policy playbook — what this officer cites[3]

The policies this officer cites most in their own reports — times cited across 371 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

CS14Design. Strategic
248 times cited
DM D2
247 times cited
DM D3
223 times cited
D4
191 times cited
D3List of Buildings of Special Architectural or Historic Interest
175 times cited
DM D4
121 times cited
D8
109 times cited
HC1
98 times cited
Which policies this officer leans on is subscriber intelligenceSubscribe to unlock →
Decisions by ward

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.

Recent applications
Address
Reference
Type
Outcome
Date
26/HOUSE/0381
Householder
Approved
2026-05-29
25/P0767
Full Planning Permission
Withdrawn
2026-05-28
26/HOUSE/0381
Householder
Approved
2026-05-29
25/P0767
Full Planning Permission
Withdrawn
2026-05-28
Full application history locked
Subscribe to see all 568 decisions →
Consultants approved most— subscriber data
1. Pembroke Planning
2. Sixty Two Limited
3. GBS Architectural Ltd
4. Planning Additions
At a glance
OfficerCharlotte Gilhooly
BoroughMerton
RolePlanning officer
Experience
Applications568 (2020–26)
Approval rate93%
London approval avg81%
Who decides here
GovernmentMayor of LondonCouncilCommitteeOfficersDecisionsApplicantsInspectorate
Related investigations
When committees overrule officers like this one →
How often members depart from officer recommendations, and how those overrides fare at appeal.
How much gets decided without a committee →
The delegated share by borough and officer — where the real power over decisions sits.
Sources & method
  1. [1]Applications decided, approval rate, per-year trend and ward breakdown — London Borough of Merton planning register and published decision notices, 2020–26. · methodology
  2. [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. [3]Condition load — Merton's decision-notice parsing is limited coverage, so no borough or officer figure is shown.
  4. [4]"How this officer decides", the policy playbook and all quotes — parsed from 371 published Merton 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.
Methodology is published in full so every number is traceable to its primary source.