Development Intent
AtlasBrentOfficersSarah Dilley
Planning Atlas›Brent›Sarah Dilley
Case officer · Brent Planning

Sarah Dilley.

Active — last recorded decision May 2026

A case officer at Brent with an approval rate of 52% across 260 decided planning applications, spanning 13 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer260 decisions52% 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 →
260
Applications
2020–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%49%202044%202146%202283%202365%202469%202583%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compare — Versus peers
Approval rate52% · 42nd 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 reports203 officer reports parsed
34%
Approves despite concerns
of approvals record a documented reservation
7%
Negotiated approvals
approvals mentioning revisions/amendments
8%
"On balance" reports
reports using explicit balancing language
80%
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.

Bulk & massing
2.17× borough avg
Noise & disturbance
2× borough avg
Precedent & consistency
1.54× borough avg
Outlook & amenity
1.48× borough avg
Daylight & sunlight
1.32× borough avg

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

Assigned Sarah Dilley 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 Character Appraisal notes that property No.s 21 and 23 Cavendish Road are related more to the expansion of development into Mowbray Road where the grand Victorian Villas east of Christchurch Avenue to the south and westward extension of Mowbray were built in the main by William Hancock between 1883 and 1886.”

20/0129

“Room 5 is considered to result in unacceptable living conditions for future occupants. The limited headroom renders a large part of the room impractical to use and results in a cramped feel.”

20/0219

Measured from 203 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 203 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

DMP1DEVELOPMENT MANAGEMENT GENERAL
66 times cited
CP17
58 times cited
DMP 1
57 times cited
DMP 19
45 times cited
DMP12
43 times cited
DMP18
40 times cited
DMP19
40 times cited
CP 21
37 times cited
Which policies this officer leans on is subscriber intelligenceSubscribe to unlock →
Decisions by ward
Ward
Decisions
Approval rate
37
38%
28
54%
28
67%
26
70%
26
52%
20
13%
19
65%
19
19%
17
62%
13
33%
13
67%
7
100%
6
75%
37
38%
28
54%
28
67%
Show all 13 rows
26
70%
26
52%
20
13%
19
65%
19
19%
17
62%
13
33%
13
67%
7
100%
6
75%

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
26/0263
Full Planning Permission
Approved
2026-05-12
25/3456
Householder
Approved
2026-04-13
26/0263
Full Planning Permission
Approved
2026-05-12
25/3456
Householder
Approved
2026-04-13
Full application history locked
Subscribe to see all 260 decisions →
Consultants approved most— subscriber data
1. Sterling Town Planning
2. Mono Consultants Ltd
3. UPP - Urban Planning Practice
4. Savills
At a glance
OfficerSarah Dilley
BoroughBrent
RolePlanning officer
Experience—
Applications260 (2020–26)
Approval rate52%
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, 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 — 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 203 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.