
Top 5 Planning Permission Mistakes and How to Avoid Them
Top 5 Planning Permission Mistakes and How to Avoid Them
Planning permission is a crucial step when starting a small-scale development. Whether you’re building one home or ten, getting it wrong can cost you time, money, and even your entire project. The good news? Most mistakes are avoidable if you know what to look out for. In this blog, we’ll break down the top five planning permission mistakes and how to avoid them, in simple terms anyone can understand.
1. Not Researching Local Planning Policies
Every area has its own rules about what you can build and where. These are called local planning policies, and ignoring them is one of the biggest mistakes developers make.
Why it’s important: Councils look at these policies when deciding if your application gets approved.
How to avoid it: Check your local council’s website for their planning guidelines before you even draw up your plans.
💡 Pro Tip: If you’re unsure, our team at 369 Construction Universe Group can help you navigate local policies.

2. Submitting Incomplete Applications
A planning application isn’t just filling out a form; it’s a package of information that shows the council exactly what you want to build. Common missing items include:
Site plans.
Design details.
Environmental impact assessments (if required).
Why it’s important: Incomplete applications will be rejected or delayed, costing you weeks—or even months.
How to avoid it: Use the checklist provided by your local council and double-check every detail before submitting.
3. Ignoring Neighbours
Building affects more than just the plot—it impacts the people around it. Developers who don’t consider their neighbours often face complaints, which can delay or derail projects.
Why it’s important: Councils may reject applications if neighbours object strongly enough.
How to avoid it:
Inform your neighbours early about your plans.
Address concerns about things like privacy, noise, or parking.
💡 Pro Tip: Small changes to your design, like planting trees for privacy, can make a big difference.
4. Overlooking Site Constraints
Not all plots are created equal. Some have tricky features, like:
Slopes or uneven ground.
Protected trees.
Flood risks or poor drainage.
Why it’s important: These issues can make your project more expensive or lead to planning permission being denied.
How to avoid it: Hire professionals to survey the land and identify any potential challenges before submitting your application.
At 369 CUG, we offer site analysis services to help developers avoid costly surprises.
5. Underestimating the Timeline
Planning permission isn’t a quick process. Many developers think they’ll get approval in a few weeks, but it often takes much longer.
Why it’s important: Rushing can lead to mistakes or missed opportunities to address objections.
How to avoid it:
Expect the process to take at least 8–12 weeks (or more for complex projects).
Build extra time into your schedule for revisions or appeals if needed.
Bonus Tips for Success
Work with experts: Architects and planning consultants can save you time and stress.
Stay flexible: If the council asks for changes, be ready to adapt.
Think long-term: Planning permission is more than a box to tick—it sets the foundation for your project’s success.
Final Thoughts
Avoiding these common planning permission mistakes can save you time, money, and endless frustration. By doing your research, submitting complete applications, and considering the impact of your development, you’re already ahead of the game.
At 369 Construction Universe Group, we specialise in helping small-scale developers succeed. From planning permission to project management, we’re here to make your journey smoother.