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Home Extensions Cornwall: What to Know When Planning in 2025

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At Cornwall Home Renovations, we specialise in home extensions Cornwall families can truly be proud of. From single storey extensions to full double storey extensions, our experienced team manages every stage of the construction process — delivering exceptional quality, strong project management, and stress-free results.

Why So Many Homeowners Are Extending Their Homes

Extending your existing home can add both value and functionality. Whether you’re creating a larger dining area, adding additional bedrooms, or designing a home gym, an extension gives you the freedom to enhance your lifestyle without leaving your neighbourhood.

Different types of extensions can cater to a wide range of family needs and preferences, from self-contained annexes for relatives to open-plan spaces for entertaining or tailored solutions for unique lifestyles.

Many of our projects across North Cornwall involve rear extensions that open up the garden, letting in natural light and improving the connection between indoors and outdoors. Others choose a side return extension to expand a narrow kitchen or create a new living space that fits their growing family.

Types of Extensions We Commonly Build in Cornwall

1. Single Storey Extensions

A single storey build is often the simplest way to create extra space — perfect for a larger kitchen-diner, home gym, or utility room.

A single storey extension is a popular choice for home improvement, as it adds valuable space on one level and can be tailored to suit a variety of needs.

These are popular for their versatility and lower construction time and our experienced builders in Cornwall handle everything from groundwork to roofing.

2. Double Storey Extensions

Ideal when you want additional bedrooms upstairs and a bigger living space below. With the right planning permission, a double storey extension can completely transform your property.

3. Rear and Side Extensions

Rear extensions make great use of garden space, while a side return extension can unlock potential in areas often overlooked. These designs often feature traditional brick exteriors to blend beautifully with your existing home.

4. Wraparound or Bespoke Extensions

For those who want a completely new extension that changes the layout of the entire house, we provide bespoke designs that combine modern style with lasting functionality.


The Planning Process

Every extension begins with good planning. We guide you through the full process, from your initial ideas to completion.

A well-managed course of action during planning and construction can maximize the value and success of your extension project.

Permitted Development and Planning Permission

Some projects fall under permitted development rights, meaning no planning application is required. Others need full planning permission, depending on the size, location, and type of building. Our team liaises directly with Cornwall Council to make sure every project is compliant from the very beginning.


Managing Costs and Budgets

While many homeowners ask, “How much do home extensions cost in the UK?”, the truth is that every project is unique. Factors like design complexity, materials, and access to your site all affect overall costs.

That’s why we take pride in offering clear, detailed quotes before any construction begins — ensuring your budget stays on track and expectations are met.

For national guidance, you can also visit the UK Government’s Planning Portal for details on permitted development rights.


Quality Project Management from Start to Finish

Good project management makes all the difference. Our builder-led team coordinates every trade — roofing, plastering, bathrooms, and more — to deliver seamless results. Each project is carefully planned, monitored, and completed to the highest standards of detail and quality.

Every extension is built to meet building control standards and tailored to client requirements.

We focus on communication, keeping you informed at every stage of your extension so you always know what’s happening on site.

Design Inspiration and Lifestyle Benefits

A well-thought-out extension can completely change how you use your house. Imagine a bright, sleek kitchen-diner that opens onto your garden, or a peaceful home gym filled with light. These projects don’t just add value to your property — they enhance your lifestyle.

Our designs often combine traditional brick craftsmanship with modern materials to achieve the perfect extension for your family and location.


How to Decide What’s Right for You

When planning your new extension, think about how your family lives day-to-day. Do you need more space for entertaining? A dining area for gatherings? Or a perfect solution for home working? We’ll help you create a design that fits your vision and budget.

We take time to discuss every aspect of your project, ensuring the finished result matches your expectations — from layout to lighting and finishing detail.


The Benefit of Working with a Local Builder in Cornwall

Choosing a builder who understands Cornwall’s building styles, weather conditions, and regulations is key. Based in Liskeard, our team delivers home extensions across North Cornwall and beyond, combining local knowledge with reliable construction expertise.

We specialise in high-quality extensions that stand the test of time — designed to transform your existing home and turn your ideas into reality.


Let’s Bring Your Vision to Life

Every project begins with a conversation. If you’re ready to discuss your ideas or need advice on the planning process, we’re here to help.

📞 07526 170533
📧 cornwallhomerenovations@hotmail.com
📍 2 Little Dean, Liskeard, Cornwall, PL14 4JL
Get in touch today

“You imagine it, we’ll build it.”

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