Development Intent
AtlasHillingdonOfficersKatherine Mills
Planning Atlas›Hillingdon›Katherine Mills
Case officer · Hillingdon Planning

Katherine Mills.

Active — last recorded decision May 2026

A case officer at Hillingdon with an approval rate of 92% across 1,101 decided planning applications, spanning 38 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer1,101 decisions92% approvalSave
Hillingdon · 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 →
1,101
Applications
2020–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%82%202080%202197%202290%202391%202494%202599%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compare — Versus peers
Approval rate92% · 9th of 59
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 reports

Not filled in yet — this needs at least 20 of Katherine Mills's own officer reports parsed, and their reports haven't reached that threshold in the parsing run. It fills automatically as parsing progresses; nothing is estimated in its place.

Policy playbook — what this officer cites[3]

The policies cited most on decision notices for applications Katherine Mills decided — 429 parsed notices. From the published notices themselves; their own report wording is parsed separately.

DMHB11Design of New DevelopmentHillingdon plan
10 times cited
DMHD2OutbuildingsHillingdon plan
2 times cited
DMT6Vehicle ParkingHillingdon plan
2 times cited
DMT1Managing Transport ImpactsHillingdon plan
2 times cited
DMT2Highways ImpactsHillingdon plan
2 times cited
6.1Superseded
1 times cited
HE1Hillingdon plan
1 times cited
DMHB1Heritage AssetsHillingdon plan
1 times cited
Which policies this officer leans on is subscriber intelligenceSubscribe to unlock →
Decisions by ward
Ward
Decisions
Approval rate
189
94%
143
96%
137
93%
117
93%
117
89%
104
91%
57
94%
17
93%
15
83%
13
67%
12
100%
12
100%
12
92%
12
83%
11
100%
11
90%
10
56%
10
100%
10
100%
8
100%
8
71%
8
71%
8
100%
7
83%
7
50%
6
100%
6
60%
5
100%
5
100%
5
100%
4
100%
3
67%
3
100%
3
100%
2
100%
2
100%
1
100%
1
100%
189
94%
143
96%
137
93%
Show all 38 rows
117
93%
117
89%
104
91%
57
94%
17
93%
15
83%
13
67%
12
100%
12
100%
12
92%
12
83%
11
100%
11
90%
10
56%
10
100%
10
100%
8
100%
8
71%
8
71%
8
100%
7
83%
7
50%
6
100%
6
60%
5
100%
5
100%
5
100%
4
100%
3
67%
3
100%
3
100%
2
100%
2
100%
1
100%
1
100%

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
69938/APP/2026/770
Planning Application
Approved
2026-06-04
79993/APP/2026/886
Planning Application
Approved
2026-06-03
69938/APP/2026/770
Planning Application
Approved
2026-06-04
79993/APP/2026/886
Planning Application
Approved
2026-06-03
Full application history locked
Subscribe to see all 1,101 decisions →
Consultants approved most— subscriber data
1. Mr Ramesh Pankhania R.P. Arch Services
2. mr Satha Palan Studio
3. Rick Thompson British Telecommunications plc (BT)
4. Mr Finch Moor House Farm Estate Lower Road Higher Denham Uxbridge UB9
At a glance
OfficerKatherine Mills
BoroughHillingdon
RolePlanning officer
Experience—
Applications1,101 (2020–26)
Approval rate92%
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 Hillingdon 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 Hillingdon decision notices (grant/split), parsed from the published notice text; a borough figure, not yet split per case officer.
  4. [4]Policy citations will be coded from officer reports against the adopted Local Plan, London Plan and NPPF — that parsing has not run for this borough yet.
Methodology is published in full so every number is traceable to its primary source.