Hertsmere

East of England·E07000098·Data: 2025 Q1-Q4
49

Below Average

Performance rating out of 100, based on approval rate, decision speed and appeal outcomes

Hertsmere is a planning authority in the East of England that covers parts of Hertfordshire including towns like Potters Bar and Radlett. The council is generally supportive of householder applications, with a strong approval rate that suggests a pragmatic approach to residential development. One thing to note is that decision times can be slower than the national target, so patience may be needed while your application is being processed.

Approval Rate

94%

of householder applications approved

Decided Within 8 Weeks

49%

meet the statutory target

Appeal Overturn Rate

52%

of refusals overturned on appeal

What to Expect

You can feel reasonably confident about your application here, as Hertsmere approves around 94 percent of householder planning applications. This is a positive sign that the council takes a balanced view of residential improvements and extensions. However, you should be prepared for a longer wait than ideal: only about half of applications are decided within the standard 8 week timeframe, so it's wise to budget for several months rather than rushing any decisions that depend on planning permission. The good news is that if your application is refused, there's a decent chance of success on appeal, which happens in just over half of cases.

Local Planning Considerations

Hertsmere includes areas of Green Belt land, which means some properties will face stricter rules about extensions and outbuildings. You should also check whether your property falls within a conservation area, as these often have additional requirements around materials, design and the appearance of changes. It's worth doing this homework early, as it will affect what you can realistically propose.

Tips for Homeowners

Start by having a clear conversation with the planning department before you submit anything formal. Officers here are generally helpful, and a quick phone call can save you time and money by identifying any obvious issues early on. Make sure your application is thorough and well presented, because although the approval rate is high, taking shortcuts now could lead to a request for more information that delays everything further. Finally, if you're working near a conservation area or on Green Belt land, consider instructing a planning consultant to review your proposals, as getting the detail right upfront is much simpler than dealing with refusal.

About the performance rating: The score out of 100 is calculated from three factors: householder application approval rate (up to 40 points), the percentage of decisions made within the 8-week statutory target (up to 30 points), and the appeal overturn rate, where a lower rate means the authority makes sound decisions that hold up on appeal (up to 20 points). A further 10 points are available for data completeness. Source: MHCLG PS2 planning statistics and Planning Inspectorate appeal decisions, 2025 Q1-Q4.

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