Breathing New Life Into Protected Spaces

Living in a conservation area has its rewards: charming architecture, tree-lined streets, and a sense of community steeped in heritage. But what happens when your beautiful period property needs more space? At KT5 Construction Ltd, we specialise in extending homes in conservation areas with sensitivity, precision, and full compliance. Whether you live in Surrey, London, or anywhere near the M25, we’ve got you covered. In this blog, we cover everything you need to know about planning permission for extensions in conservation areas.

Our people-first approach ensures that your vision is balanced with the regulations that protect your home’s historical value. We transform spaces while preserving their character—a delicate art that sets us apart as trusted builders across Surrey, London and beyond. 

What Is a Conservation Area?

Conservation areas are designated by local councils to protect locations with architectural or historic significance. They can range from Edwardian and Victorian streets to more rural or even woodland areas. Any construction or alteration within these zones must enhance or preserve the area’s character.

This makes extending your home a bit more complicated than standard planning. However, with KT5 Construction’s expertise, navigating these requirements becomes far less daunting.

Why You Need Planning Permission for Extensions in Conservation Area ? 

In most cases, permitted development rights are limited or removed entirely in conservation areas—especially under what’s known as an Article 4 Direction. This means even simple projects like side extensions, rear extensions, or installing new doors and windows often require planning permission.

The key is to submit a detailed application that considers:

• • Design harmony with the surrounding area
  • High-quality materials sympathetic to the existing structure
  • Preservation or enhancement of architectural features
  • Compliance with Article 4 Directions (if applicable)
  • Impact on neighbouring properties and the streetscape

What Your Planning Application Should Include

To improve your chances of approval, your planning application should include:

• • A Design and Access Statement explaining the rationale behind your project
  • Architectural drawings including site plans, elevations, and proposed layouts
  • Heritage impact assessment (if required by your local authority)
  • Details on the materials to be used and how they relate to the original building
  • Photographic evidence or historical context showing the property’s features

We recommend starting with pre-application advice from your local authority. It’s not mandatory, but it provides valuable feedback and can help tailor your application to local guidelines.

Our Experience in Conservation Areas

KT5 Construction has extensive experience managing property renovations and extensions within conservation zones. We work hand-in-hand with local planning authorities, conservation officers, architects, and structural engineers to ensure that every detail—from planning submission to build execution—is handled to the highest standard.

We’ve helped clients achieve everything from:

• • Single-storey rear extensions to open up kitchen/dining spaces
  • Side-return conversions in Victorian terraces
  • Wraparound and double-storey builds that meet both functional and aesthetic goals

Our familiarity with local character and listed building constraints allows us to plan proactively and avoid costly delays.

The KT5 Conservation Extension Process

Every conservation area project we undertake begins with a consultation. We don’t just measure walls; we listen to your needs, assess your property, and consult historical records and planning data.

From there, we handle:

• • Planning Application Management: We prepare the required drawings and design statements with the support of qualified architects.
  • Design Collaboration: We help create plans that marry your vision with local expectations.
  • Material Selection: We advise on period-appropriate brickwork, timber, windows, and finishes.
  • Construction & Quality Control: Our builders follow strict building regulations while preserving original features.

FAQs: Conservation Area Extension Planning Permissions

1. Do I always need planning permission in a conservation area?
Most likely, yes. Especially for side, double-storey, or wraparound extensions.

2. What is an Article 4 Direction?
This restricts your permitted development rights, requiring you to seek full planning permission for alterations.

3. Will I need conservation area consent?
Only for demolition work, such as removing outbuildings or boundary walls over a certain height.

4. Can I use modern materials?
Yes, but they must be sympathetic to the original structure and approved by the local authority.

5. How long does the process take?
Planning approvals in conservation areas can take 8–12 weeks, plus design and prep time.

We Know the Rules So You Can Focus on the Results

Navigating conservation planning regulations can feel overwhelming. But when you work with KT5 Construction, you don’t go it alone. We liaise with planning departments, heritage consultants, and architects to deliver a seamless service.

Whether you’re in Reigate, Dorking, or any other conservation area in Surrey, we bring clarity, confidence, and craftsmanship to every project.

Start Your Conservation Area Extension Journey Today

If you’re dreaming of more space but live in a protected area, KT5 Construction is your go-to partner. We understand the rules—and how to work with them to bring your vision to life.