Planning permission in Hillingdon

Limited recent decision data is available for Hillingdon, so we don't show a headline approval rate here. The figures below cover all application types on record.

Across all application types, 83.9% of 1,815 applications decided since February 2023 were approved. Based on Hillingdon's public planning register. Data last updated: 5 July 2026.

2,357Total applications
1,815Decided
83.9%Approval rate (of decided)
1,522 Approved+293 Refused+68 Withdrawn+455 Pending+19 Outcome not determined=2,357 Total
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By Development Category

All applications on record, not only the last 12 months.

CategoryDecidedApprovedRefusedApproval rate
Home extensions and alterations (householder) 686 604 82
88.0%
Certificate of lawfulness (confirming permitted development) 291 275 16
94.5%
Discharging planning conditions 195 181 14
92.8%
Full planning applications 131 89 42
67.9%
Larger extensions (householder prior approval) 99 92 7
92.9%
Protected tree works (TPO) 78 56 22
71.8%
Minor amendment to an approved scheme (S96a) 62 50 12
80.6%
Changing a planning condition (S73) 45 38 7
84.4%
Change of Use 44 26 18
59.1%
Certificate of lawfulness (existing use) 39 28 11
71.8%
Advertisement Consent 37 35 2
94.6%
Dismissed 32 0 32 no approvals recorded
Allowed 22 0 22 no approvals recorded
Other* 54 48 6 mixed types

Dismissed: no approvals are recorded in this category for this authority, so no approval rate is shown.

Allowed: no approvals are recorded in this category for this authority, so no approval rate is shown.

* Other combines smaller categories: Listed Building Consent (18), Prior approval (permitted development) (7), Change of use to homes (prior approval, Class MA) (5), Adding storeys (prior approval, Class AA) (4), Phone masts and telecoms (3), Reserved matters (detail after outline approval) (2), Outline Planning (1), Appeal (1).

Quarterly Trend

The most recent three years. Earlier decisions are included in the totals above but not in this chart.

QuarterDecidedApprovedApproval rate
Q3 2023 65 52
80.0%
Q4 2023 138 117
84.8%
Q1 2024 156 138
88.5%
Q2 2024 131 108
82.4%
Q3 2024 131 115
87.8%
Q4 2024 162 133
82.1%
Q1 2025 147 126
85.7%
Q2 2025 160 139
86.9%
Q3 2025 138 112
81.2%
Q4 2025 145 125
86.2%
Q1 2026 139 116
83.5%
Q2 2026 54 46
85.2%
Q3 2026 (quarter in progress) 1 1 sample too small
By Ward

The 12 wards with the most decided applications, across all years. 231 further decided applications fall in wards not shown.

Among wards with at least 20 decided applications, approval rates range from 77.2% in CHARVILLE 2022 to 93.8% in EASTCOTE 2022, a gap of 16.6 percentage points.

WardDecidedApprovedRefusedApproval rate
ICK/HAM & S HF/D 22 153 131 22
85.6%
RUISLIP 2022 131 109 22
83.2%
PINKWELL 2022 116 101 15
87.1%
EASTCOTE 2022 112 105 7
93.8%
COLHAM & COWLEY 111 90 21
81.1%
UXBRIDGE 2022 106 95 11
89.6%
WOOD END 2022 100 82 18
82.0%
BELMORE 2022 99 81 18
81.8%
HILLINGDON EAST 2022 95 75 20
78.9%
NORTHWOOD 2022 94 79 15
84.0%
CHARVILLE 2022 92 71 21
77.2%
NORTHWOOD HILLS 2022 81 66 15
81.5%
Frequently asked questions
What is the planning approval rate in Hillingdon?
Across all application types, 83.9% of 1,815 applications decided in Hillingdon since February 2023 were approved.
Do I need planning permission in Hillingdon?
It depends on the project and the property. Many home projects fall under permitted development rights, but constraints such as conservation areas, listed buildings and Article 4 directions change what needs permission at a specific address. See our guides to permitted development rights and Article 4 directions.
Do I need a planning consultant in Hillingdon?
Many home projects do not need one. A straightforward extension on an unconstrained property is often handled directly with the council, or with an architect or agent preparing the drawings. A consultant is more likely to earn their fee where the site is constrained, the council has refused similar schemes, or an appeal is in prospect. Understanding your property's constraints and the council's recent decisions first makes any conversation with a professional a better-informed one.
Planning guides

Not sure what you can build without planning permission? See our guides to permitted development rights, Article 4 directions and planning costs.

Reports for Hillingdon are coming soon. Look up an address now to see its constraints, and join the waitlist.