Development Intent
AtlasSouthwarkOfficersLouise Dinsdale
Case officer · Southwark Planning

Louise Dinsdale.

Active — last recorded decision May 2026

A case officer at Southwark with an approval rate of 93% across 417 decided planning applications, spanning 23 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer417 decisions93% approvalSave
Southwark · 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 →
417
Applications
2020–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%89%202095%202196%202291%202388%202498%2025100%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compareVersus peers
Approval rate93% · 26th of 79
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 reports355 officer reports parsed
8%
Approves despite concerns
of approvals record a documented reservation
16%
Negotiated approvals
approvals mentioning revisions/amendments
9%
"On balance" reports
reports using explicit balancing language
68%
Bespoke reasoning
of report text written for the case, not recited
What they write about — vs Southwark's average officer

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

Flooding & drainage
1.41× borough avg
Trees & landscape
1.3× borough avg
Materials & detailing
1.18× borough avg
Outlook & amenity
1.13× borough avg
Energy & sustainability
1.08× borough avg

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

How they reason — coded from their reports

Dinsdale's corpus skews heavily toward Certificate of Lawfulness (Class A permitted-development) checklist reports, working through the GPDO Schedule 2 Part 1 criteria question-by-question (curtilage coverage, eaves proximity to boundary, article 2(3) land status) rather than free-form design narrative. Where a full planning application does appear, her amenity write-up stays close to the same eaves-height-and-boundary-distance format used borough-wide.

Observable habits

· works through GPDO Schedule 2 Part 1 Class A criteria as discrete Yes/No questions (curtilage coverage, boundary proximity, article 2(3) land) rather than narrative design assessment

· records where an applicant failed to resolve a specific factual query (e.g. confirming an HMO's true unit configuration) as the reason a certificate could not be granted as submitted

· keeps full-application amenity assessments to the borough's standard eaves-height/boundary-distance format

What their reports consistently look for

· what this officer's reports consistently look for: a Yes/No answer to each individual GPDO Schedule 2 Part 1 Class A criterion rather than a blended judgement

· what this officer's reports consistently look for: whether the property's use-class history (e.g. prior change of use under Class M/N/P/PA/Q) affects permitted development eligibility

· what this officer's reports consistently look for: precise ground-coverage percentage within the curtilage against the 50% GPDO threshold

Assigned Louise Dinsdale 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

Extension < 2m from neighbour boundary with 3m eaves height

20/AP/0135

The applicant has been unable to provide revised proposed floor plans that reflect the licensed HMO will not be divided into seven self-contained flats

20/AP/0185

Measured from 355 published Southwark 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 355 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

13Other locations of tall buildings
94 times cited
SI 13
61 times cited
HC1Paragraph Heritage
29 times cited
G7Trees and woodlands
21 times cited
T4Assessing
20 times cited
D12
20 times cited
P68Reducing flood risk
19 times cited
P56Protection of amenity
15 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/AP/0150
Householder Application
Approved
2026-06-01
26/AP/1343
Householder Application
2026-05-11
26/AP/0150
Householder Application
Approved
2026-06-01
26/AP/1343
Householder Application
2026-05-11
Full application history locked
Subscribe to see all 417 decisions →
Consultants approved most— subscriber data
1. The Art of Building Ltd
2. Resi
3. Design Squared Ltd
4. Chris Scott Architects
At a glance
OfficerLouise Dinsdale
BoroughSouthwark
RolePlanning officer
Experience
Applications417 (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 Southwark 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 — mean effective conditions attached to Southwark decision notices (grant/split), parsed from the published notice text; a borough figure, not yet split per case officer.
  4. [4]"How this officer decides", the policy playbook and all quotes — parsed from 355 published Southwark 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.