Enforcement action for breaches of planning permission has surged across the UK in the past 25 years, with more than a quarter of a million actions issued between 2000 and 2025.
The number of enforcement actions jumped by nearly 25% in 2025 compared to 2022, reflecting a renewed focus on unauthorised building works.
Analysis of local authority data shows that some councils are consistently more active than others in policing planning rules.
Article continues belowTop councils for planning enforcements
According to The Property Buying Company, which analysed government planning data, 10,016 enforcement actions were issued in 2025 alone, bringing the total across the UK since 2000 to 269,525.
The following local authorities have issued the highest number of planning enforcement actions between 2000 and 2025:
Ranking | Local Planning Authority | Number of Enforcement Actions |
|---|---|---|
1 | Brent | 6,345 |
2 | Birmingham | 5,895 |
3 | Westminster | 4,808 |
4 | Cornwall | 4,491 |
5 | Barnet | 4,282 |
6 | Newcastle-Under-Lyme | 4,236 |
7 | Ealing | 4,053 |
8 | Haringey | 4,036 |
9 | Leeds | 3,203 |
10 | Newham | 3,104 |
11 | Enfield | 2,773 |
12 | Hounslow | 2,750 |
13 | Hammersmith and Fulham | 2,746 |
14 | Bromley | 2,737 |
15 | Hackney | 2,372 |
16 | Bradford | 2,330 |
17 | Camden | 2,297 |
18 | Kirklees | 2,043 |
19 | Lancaster | 2,016 |
20 | Lambeth | 1,800 |
Brent Council emerges as the most active authority, but several councils outside London, including Birmingham, Cornwall, and Newcastle-Under-Lyme, feature prominently, showing that enforcement is not limited to the capital.
Most common types of enforcement actions
Between 2000 and 2025, councils issued a wide variety of enforcement measures, with the highest numbers being:
Type of Enforcement Action | Number Issued |
|---|---|
Enforcement Notices | 118,213 |
Planning Contravention Notices | 117,865 |
Breach of Conditions Notices | 23,233 |
Temporary Stop Notices | 5,297 |
Stop Notices | 3,396 |
Enforcement Injunctions Granted | 1,291 |
Injunctive Applications Refused | 134 |
Enforcement Warning Notices | 96 |
Enforcement notices and planning contravention notices together make up almost 88% of all actions, while other measures, such as stop notices and injunctions, remain relatively rare. The increase in 2025, with 10,016 enforcement actions issued, marks the first four-figure total since 2017.
Warning for homeowners
Homeowners planning extensions, renovations, or changes of use should be aware that local councils are actively enforcing planning rules. Failure to get planning approval can result in enforcement notices, fines, or even legal action to reverse unauthorised work.
Jonny Christie, co-founder of The Property Buying Company, said: “To find out if you need planning permission, contact your local planning authority through your local council on the gov.uk website. This will help to ensure that you are compliant with the law and help to prevent spending time and money to undo any unapproved changes that have been made.”
The data highlights the importance of compliance, with councils across the UK taking action to ensure building works meet approved planning conditions.
