Development Intent
AtlasBarnetOfficersTabitha Hannam
Case officer · Barnet Planning

Tabitha Hannam.

Recently active — last recorded decision Sep 2025

A case officer at Barnet with an approval rate of 85% across 133 decided planning applications, spanning 24 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer133 decisions85% approvalSave
Barnet · 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 →
133
Applications
2024–25
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%81%202486%2025
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compareVersus peers
Approval rate85% · 28th of 85
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 reports147 officer reports parsed
Approves despite concerns
of approvals record a documented reservation
Negotiated approvals
approvals mentioning revisions/amendments
1%
"On balance" reports
reports using explicit balancing language
51%
Bespoke reasoning
of report text written for the case, not recited
What they write about — vs Barnet's average officer

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

Bulk & massing
0.99× borough avg
Daylight & sunlight
0.97× borough avg
Materials & detailing
0.94× borough avg
Outlook & amenity
0.9× borough avg
Character & heritage
0.88× borough avg

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

How they reason — coded from their reports

Hannam's reports cover a spread of extensions, GPDO Certificate-of-Lawfulness cases and retrospective (RCU) applications, and she is unusually explicit about REJECTING a 'precedent' argument raised by objectors — stating directly that an approval 'would not represent a precedent which must presuppose the outcome' for future applications. Her refusals on street-scene grounds lean on the specific concept of 'established building lines' as a named, testable feature rather than a general character judgement.

Observable habits

· directly rejects objector 'this will set a precedent' arguments in the response-to-consultation section, stating each case is determined on its own merits

· frames street-scene harm around disruption to 'established building lines' as its own named, testable concept

· cites case law (Arnold v Secretary of State) when applying the GPDO 'extension on an extension' test to rear projections beyond an existing rear wall

What their reports consistently look for

· what this officer's reports consistently look for: whether a scheme genuinely disrupts an 'established building line' as its own testable feature of the street, distinct from a general character judgement

· what this officer's reports consistently look for: a direct rebuttal to any objector 'precedent' argument, confirming each application is determined on its own merits

· what this officer's reports consistently look for: whether the GPDO 'extension on an extension' case-law test applies where a rear wall has already been extended historically

Assigned Tabitha Hannam 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

it would not represent a precedent which must presuppose the outcome

24/2199/HSE

the proposal would be considered as an extension on an extension and paragraph j(a) of the legislation would apply

24/2171/192

Measured from 147 published Barnet 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 147 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

CS1 arnet’s place shaping strategy – protection,
29 times cited
CS5 rotecting and enhancing Barnet’s character
27 times cited
DM01Protecting Barnet’s character and amenity Page
23 times cited
CS NPPF
23 times cited
DM02Development standards Page
13 times cited
CS9Enlargement of School Facilities CS10 DM
1 times cited
DM06 DM17
1 times cited
DM06Barnet’s heritage and conservation Page
1 times cited
Which policies this officer leans on is subscriber intelligenceSubscribe to unlock →
Decisions by ward

Where this officer's caseload concentrates, 2024–25.[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
25/3542/HSE
Householder Application
Approved
2025-11-17
25/3533/HSE
Householder Application
Approved
2025-10-21
25/3542/HSE
Householder Application
Approved
2025-11-17
25/3533/HSE
Householder Application
Approved
2025-10-21
Full application history locked
Subscribe to see all 133 decisions →
Consultants approved most— subscriber data
1. Dalcour Maclaren
2. SMA Studio Barnet Ltd
3. Dimensions- Planning&Architecture
4. Ahrberg Jackson Design
At a glance
OfficerTabitha Hannam
BoroughBarnet
RolePlanning officer
Experience
Applications133 (2024–25)
Approval rate85%
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 Barnet planning register and published decision notices, 2024–25. · 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 Barnet 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 147 published Barnet 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.