Development Intent
AtlasBrentOfficersJanseway Cheung
Case officer · Brent Planning

Janseway Cheung.

Active — last recorded decision May 2026

A case officer at Brent with an approval rate of 66% across 449 decided planning applications, spanning 14 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer449 decisions66% approvalSave
Brent · 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 →
449
Applications
2022–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%79%202261%202375%202466%202545%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compareVersus peers
Approval rate66% · 26th of 43
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 reports184 officer reports parsed
17%
Approves despite concerns
of approvals record a documented reservation
6%
Negotiated approvals
approvals mentioning revisions/amendments
14%
"On balance" reports
reports using explicit balancing language
65%
Bespoke reasoning
of report text written for the case, not recited
What they write about — vs Brent's average officer

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

Trees & landscape
1.51× borough avg
Materials & detailing
1.27× borough avg
Flooding & drainage
0.89× borough avg
Character & heritage
0.87× borough avg
Daylight & sunlight
0.74× borough avg

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

How they reason — coded from their reports

Cheung's reports cite Supplementary Planning Guidance by its specific number (e.g. SPG20 for outbuildings) when the relevant Conservation Area Design Guide is silent on a topic, and justify departures from that guidance by reference to similarly-scaled precedent at named neighbouring addresses in consultation with the Heritage Conservation Officer.

Observable habits

· cites the specific numbered Supplementary Planning Guidance document (e.g. SPG20) used when the relevant Conservation Area Design Guide has no specific guidance on a topic

· justifies a departure from stated size guidance by reference to similarly-scaled precedent at named neighbouring addresses, confirmed in consultation with the Heritage Conservation Officer

· checks flood zone status and existing vegetation with the Tree Officer even for modest domestic applications

What their reports consistently look for

· what this officer's reports consistently look for: which specific numbered SPG applies when the Conservation Area Design Guide has no guidance on a topic

· what this officer's reports consistently look for: named neighbouring precedent for an oversized feature, confirmed directly with the Heritage Conservation Officer rather than assumed

· what this officer's reports consistently look for: Tree Officer input on garden vegetation even for modest domestic proposals

Assigned Janseway Cheung 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

The Mount Stewart Conservation Area Design Guide does not contain specific guidance in relation to outbuildings.Therefore, SPG20 is use for the assessment.

22/2432

However, upon consultation with the Heritage Conservation Officer, there are existing properties within vicinity of the site that also consists of large outbuildings in the rear garden.

22/2432

Measured from 184 published Brent 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 184 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

DMP1DEVELOPMENT MANAGEMENT GENERAL
115 times cited
BD1Leading the Way in Good Urban Design
106 times cited
D12a
104 times cited
BSUI4ON-SITE WATER MANAGEMENT AND
99 times cited
BGI1GREEN AND BLUE INFRASTRUCTURE IN BRENT
96 times cited
BHC1BRENT’S HERITAGE ASSETS
24 times cited
BGI2TREES AND WOODLANDS
14 times cited
BT2PARKING AND CAR FREE DEVELOPMENT WHICH ARE
12 times cited
Which policies this officer leans on is subscriber intelligenceSubscribe to unlock →
Decisions by ward

Where this officer's caseload concentrates, 2022–26.[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
26/0852
Householder
Approved
2026-06-03
26/0741
Full Planning Permission
Refused
2026-05-27
26/0852
Householder
Approved
2026-06-03
26/0741
Full Planning Permission
Refused
2026-05-27
Full application history locked
Subscribe to see all 449 decisions →
Consultants approved most— subscriber data
1. Studio 136 Architects Ltd
2. Construct 360 T/AS DontMoveExtend.com
3. KDB Building Designs Ltd
4. Smart Planning Designs Ltd
At a glance
OfficerJanseway Cheung
BoroughBrent
RolePlanning officer
Experience
Applications449 (2022–26)
Approval rate66%
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 Brent planning register and published decision notices, 2022–26. · 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 — Brent'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 184 published Brent 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.