Navigating Planning Permissions for Renovations, Extensions, and Building Works in the UK

Gary Newell • 2 February 2025

When it comes to renovations, extensions, or any other significant building works, one of the most important things to consider is whether you need planning permission. In the UK, planning regulations are in place to ensure that development is safe, sustainable, and in keeping with the local environment. Whether you’re looking to extend your home, convert your loft, or build a new structure, it’s crucial to understand when planning permission is required and how to go about securing it.


What is Planning Permission?


Planning permission is the formal approval you need to carry out building works or change the use of land or buildings. It’s granted by the local council or planning authority in the area where your property is located. In general, planning permission is required for larger projects or works that could affect the surrounding area, but there are some exceptions, particularly with smaller, less invasive projects.


When Do You Need Planning Permission?


Certain types of works, particularly those that alter the structure or external appearance of a property, will typically require planning permission. Here are some common projects that may need approval:


1. Extensions and Loft Conversions 

Adding extra space to your home, whether through an extension or loft conversion, is a common reason for needing planning permission. There are specific rules on how far you can extend your property and how the extension should blend with the existing structure.


2. Conservatories  

While small conservatories may be covered by permitted development rights (which allow certain works without needing permission), larger conservatories, or those that extend into the boundaries of your property, will usually require full planning permission.


3. New Builds and Major Alterations

Any new build or major structural changes to a property, including changing the layout or converting commercial properties into residential homes, typically require planning permission.


4. Changes to the External Appearance 

If you’re changing the appearance of the building by altering windows, doors, or the roofline, you may need permission. This is especially the case for listed buildings or properties in conservation areas.


5. Garden Structures 

Sheds, greenhouses, or other garden structures can also require permission if they exceed certain size limits or are placed in prominent locations.


6. Swimming Pools 

The construction of swimming pools or other large garden buildings may also require planning permission, especially if they affect the overall aesthetic or drainage of the property.


What Are Permitted Development Rights?


In many cases, small-scale works such as some types of extensions or conservatories can be carried out without the need for planning permission, under what’s called "permitted development." These rights allow homeowners to make certain changes to their property without applying for full planning permission, if they comply with specific restrictions. 


However, there are many conditions that govern permitted development, including:


- Size limits for extensions or additions

- Restrictions based on the location and position of your property (e.g., proximity to boundaries or listed status)

- Limits on the height and depth of structures

- Restrictions in areas such as conservation zones


Before carrying out any work under permitted development, it’s essential to double-check whether your property qualifies and whether the work falls within the legal parameters.

 

How to Apply for Planning Permission


If your project requires planning permission, here’s a general guide to help you through the process:


1. Consult Your Local Planning Authority

The first step is to contact your local planning authority (LPA). They will provide guidance on whether your proposal requires planning permission and what rules apply in your area.


2. Prepare Your Application

You’ll need to provide detailed plans of the proposed works, including drawings and descriptions of the changes. You may also need to submit additional documents, such as site surveys, design and access statements, and environmental impact assessments.


3. Submit Your Application 

Applications can be submitted online through the Planning Portal or directly to your local authority. The cost of the application varies depending on the type and scale of your project.


4. Wait for a Decision 

Once your application is submitted, the local planning authority will assess it. This process usually takes about eight weeks for most applications. However, complex projects may take longer. If your application is approved, you’ll receive formal planning permission. If it’s refused, you have the right to appeal.


5. Building Regulations Approval  

Even if you get planning permission, you will likely need to submit your building works to building regulations approval, which ensures the construction meets health, safety, and energy efficiency standards.


What Happens if You Don’t Get Planning Permission?


Carrying out building works without the necessary planning permission can lead to fines, legal action, or even the requirement to undo the work. If you’re unsure about whether you need planning permission, it’s always better to ask before starting. There may also be penalties for failure to comply with other legal requirements, such as not following the right building regulations.


Jigsaw Construction Surrey Ltd: Your Planning Partner


Jigsaw Construction Surrey Ltd offers comprehensive project management services to streamline your building projects. From assessing whether planning permission is required to handling the application process, we ensure a hassle-free experience. With our expertise, you can confidently navigate complex regulations and focus on your vision, knowing that every step is professionally managed. We work closely with local authorities, ensuring all submissions meet the necessary standards and guidelines for a successful outcome. 
Get in touch to discuss your next construction project!


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Planning a home extension in Surrey , a loft conversion , or even a new build? One of the biggest early considerations is whether you’ll need planning permission . For many homeowners, the process can seem confusing—but with the right knowledge and an experienced Surrey construction company by your side, it becomes much simpler. At Jigsaw Construction Surrey , we’ve supported countless homeowners through planning applications, helping them move smoothly from paperwork to building work. Here’s our step-by-step guide to navigating planning permission in Surrey. Step 1: Do You Need Planning Permission in Surrey? Not all building projects require formal approval. Some fall under Permitted Development Rights (PDR), which may allow you to extend or convert your home without submitting a full application. However, in Surrey, these rights can be restricted if your property is: Within a conservation area A listed building Situated in the Green Belt 👉 Before starting your project, check with your local Surrey council or ask our team at Jigsaw Construction Surrey for guidance. Step 2: Understand Local Planning Policies Each borough—Guildford, Elmbridge, Woking, Epsom & Ewell, and others—has its own Local Plan, which sets rules for building work. These policies cover: Building scale and height Design and materials Neighbour impact (privacy, light, outlook) Environmental impact Researching these guidelines early gives your project the best chance of success. Step 3: Create Detailed Plans A strong planning application depends on clear, accurate documents. Typically, you’ll need: Architectural drawings (site plans, elevations, floor layouts) A Design & Access Statement explaining how your design fits local policy Supporting reports (e.g., tree surveys, flood risk assessments) At Jigsaw Construction Surrey , we collaborate with skilled architects to make sure every application is thorough and professionally presented. Step 4: Submitting a Planning Application in Surrey Applications are submitted online via the Planning Portal or your local council’s website. Fees vary depending on the type of project. Once submitted, your application enters the consultation stage. Step 5: Neighbours & Community Consultation Neighbours and other stakeholders are invited to comment on your application. Common concerns include: Loss of light or privacy Parking and traffic impact Design compatibility with the local area Tip: Talking to your neighbours in advance can reduce objections and speed up the approval process. Step 6: The Planning Decision Most councils in Surrey aim to decide within: 8 weeks for smaller projects (such as home extensions) 13 weeks for larger developments If approved, you’ll receive a decision notice with any conditions. If refused, you can appeal—or make changes and reapply. Step 7: After Planning Permission – Building Regulations Even if planning permission is granted, you’ll still need to meet Building Regulations . These ensure that your project is structurally sound, energy-efficient, and safe. Our team at Jigsaw Construction Surrey helps clients every step of the way—from planning permission through to Building Regulations approval and construction. Why Choose Jigsaw Construction Surrey? Navigating planning rules can be complex, but we make the process stress-free. As trusted Surrey builders , we: Advise if planning permission is required for your project Work with architects and planning consultants Submit and support your application Deliver high-quality home extensions, loft conversions, and renovations With our experience, you’ll have peace of mind knowing your project is in expert hands. ✅ Thinking about a home extension or loft conversion in Surrey? Contact Jigsaw Construction Surrey today to discuss your plans—we’ll guide you through planning permission and bring your project to life.
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