Week 2: Planning Permission vs. Permitted Development: What You Need to Know

When planning home improvements or a new construction project, one of the first questions many homeowners ask is: Do I need planning permission? Or can I proceed under permitted development rights?

Understanding the difference between these two can save you time, money, and potential legal headaches. In this post, we'll break down both planning permission and permitted development, helping you navigate your next project with confidence.

What is Planning Permission?

Planning permission is formal approval from your local planning authority (LPA) that allows you to carry out certain types of building work or change the use of land or buildings. It ensures that developments are in line with local development plans and building regulations.

Common Projects That Typically Require Planning Permission:

• Building a new house

• Major extensions

• Significant changes to the structure or use of a building

• Conversions (e.g., barn to residential)

• Projects in conservation areas or on listed buildings

What is Permitted Development?

Permitted development rights allow homeowners and developers to carry out certain types of work without needing to apply for planning permission. These rights are granted by the government and apply to many common improvement projects.

Examples of Permitted Development:

• Small rear or side extensions (within size limits)

• Loft conversions

• Garage conversions

• Installation of solar panels

• Outbuildings like sheds or garden offices

  
  

⚠️ Note: Permitted development rights can be restricted in conservation areas, national parks, Areas of Outstanding Natural Beauty (AONB), or if your property is listed.

Key Differences at a Glance

Feature	Planning Permission	Permitted Development
Requires Local Authority Approval	✅ Yes	❌ No (unless conditions apply)
Subject to Local Planning Policy	✅ Yes	✅ Some restrictions
Time for Approval	8+ weeks	No wait (once plans confirmed)
Scope	Larger or complex projects	Minor home improvements

When in Doubt, Seek Professional Advice

If you're not sure whether your project falls under permitted development or needs planning permission, it's best to speak with a qualified professional or your local planning authority.

At RS D&M Limited we provide a full consultation service to ensure your project is compliant from day one. Whether you're building an extension, converting a loft, or planning a new build — we can help. 

Knowing the difference between planning permission and permitted development is crucial for any homeowner or property developer. While permitted development offers more freedom, it's not always straightforward. A professional review can help ensure your project stays within the law—and on budget.

Need expert help with your next project? Contact our team today to get started.

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