Development Intent
AtlasIslingtonOfficersSandra Chivero
Case officer · Islington Planning

Sandra Chivero.

Active — last recorded decision May 2026

A case officer at Islington with an approval rate of 91% across 362 decided planning applications, spanning 17 wards.[1] Decision speed and appeal performance publish when decision notices are ingested.

Planning officer362 decisions91% approvalSave
Islington · 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 →
362
Applications
2020–26
Approval rate over time — tougher or softer 🔒Dashed line = London average
avg 81%90%202199%20220%202391%202478%202588%2026
Approval-rate trend is subscriber dataSubscribe to see the trend →
What they decide — by application type
How they compareVersus peers
Approval rate91% · 23rd of 55
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 reports110 officer reports parsed
2%
Approves despite concerns
of approvals record a documented reservation
11%
Negotiated approvals
approvals mentioning revisions/amendments
7%
"On balance" reports
reports using explicit balancing language
36%
Bespoke reasoning
of report text written for the case, not recited
What they write about — vs Islington's average officer

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

Materials & detailing
2.49× borough avg
Trees & landscape
2.04× borough avg
Character & heritage
1.44× borough avg
Energy & sustainability
1.44× borough avg
Privacy & overlooking
1.24× borough avg

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

How they reason — coded from their reports

Chivero's window-replacement reports for social housing reuse a near-identical template paragraph across multiple applications, stating the proposed glazing thickness against a stated preferred maximum for the period/conservation context. Her more complex reports (a Grade II chapel forecourt, a basement excavation) give closer engagement with tree-root and groundwater technical evidence than the routine window cases.

Observable habits

· states the proposed glazing bar/frame thickness against a specific preferred maximum (e.g. 14mm) for the building's period and context

· reuses a near-identical assessment template across sequential window-replacement applications for the same estate

· engages with named technical evidence (groundwater borehole records, tree root severance risk) in basement or excavation cases rather than a general acceptability statement

What their reports consistently look for

· what this officer's reports consistently look for: a stated glazing/frame thickness figure compared against a specific preferred maximum for that building's period and setting

· what this officer's reports consistently look for: named groundwater or geological evidence (borehole records, aquifer classification) for basement excavation proposals

· what this officer's reports consistently look for: a Tree Officer's specific root-protection requirements addressed with a named methodology, not just a general assurance

Assigned Sandra Chivero 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 rear elevation windows with a total thickness of 24mm would be thicker than preferred for Victorian buildings and conservations areas (typically a maximum thickness of 14mm is preferable).

P2021/3190/FUL

Based on BGS borehole records, in the surrounding area… rest levels [are] occasionally noted at depths of ~3.10 - 3.50 mbgl within the superficial deposits

P2021/2097/FUL

Measured from 110 published Islington 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 110 parsed reports. Whether refusals citing each survive appeal isn't traced per policy yet.

D4Designing in Context
95 times cited
CS8
88 times cited
CS10
78 times cited
DM7.2
77 times cited
DM2.1
72 times cited
CS9
52 times cited
HC1
36 times cited
DM7.1
23 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
P2025/3564/FUL
Full Planning Application
Approved
2026-06-03
P2026/0897/FUL
Full Planning (Householder)
Approved
2026-05-21
P2025/3564/FUL
Full Planning Application
Approved
2026-06-03
P2026/0897/FUL
Full Planning (Householder)
Approved
2026-05-21
Full application history locked
Subscribe to see all 362 decisions →
Consultants approved most— subscriber data
1. Potter Raper Ltd
2. Mulroy Architects Ltd
3. Site and Co Consultancy Ltd
4. Environment and Planning Service
At a glance
OfficerSandra Chivero
BoroughIslington
RolePlanning officer
Experience
Applications362 (2020–26)
Approval rate91%
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 Islington 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 Islington 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 110 published Islington 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.