Property Extensions

Property Extensions

There may come a time when your home starts to feel small, or tired. Whether you have a growing family, need a guest room for overnight visitors, or just want to live in a more modern space, a property extension may be the answer.

Investing in the home you love rather than moving house may also be a shrewd financial decision. Compared to the sunk costs of moving to a new home, like stamp duty, agency fees and removals, an extension is not only more affordable but provides a tangible benefit for your family.

At Builders West Sussex, we can help you create a beautiful extension to your home. Along with our loft conversions and property refurbishments, we offer a professional property extension service, tailored to individual homes and unique lifestyles in properties across East and West Sussex.

Which type of building extension is right for my home?

Whatever type of addition you are envisioning for your home, our professional team of builders is on hand to make your vision a reality. Our experienced team can achieve almost anything you need, whether it’s an extended single-storey extension to accommodate a new kitchen and living area, or completing a more ambitious, multi-room project. We believe that communication is key, and will work closely with you to ensure you are completely happy with the project at every step.

We frequently build:

  • Single-storey property extensions

Our skilled builders can increase your living space and add value to your home with a single-storey addition that blends seamlessly into your existing property. Our rear-facing, side-return or wraparound extensions are perfect for open-plan kitchen/diners, utility rooms and downstairs bathrooms, playrooms, home offices and guest bedrooms.

  • Multi-storey property extensions

Double and multi-storey additions to your home can vastly expand your living space. Why not create an extra bedroom or bathroom upstairs, with an additional living room or kitchen/diner downstairs? Double-storey projects may cost more but they will also add more value to your property.

  • Sunrooms and conservatories

Let us help you bring the outside in with a sunroom or conservatory, or add a touch of grandeur with an orangery. Each will give you an excellent view of the garden, so you can enjoy it whatever the weather. Whether we erect a UPVC conservatory or a sunroom with brick surround, you will get the best of both worlds in compliance with the latest UK building regulations.

Whether you need a simple garage conversion or intend to double your home’s square footage, we treat every project with the same care and attention to detail as we would our own homes. Why not visit our Latest Projects page to get a better idea of what we can do for you?

View Some of Our Projects


There are many design options when it comes to building an extension to your home. From light and airy extensions that add a sense of brightness to your home to creating a seamless connection between your garden and interior, extensions can change the way a house feels.

Extensions are ideal solutions for those looking for a more open-plan living arrangement, helping to modernise homes of all ages. Typically, kitchens make the ideal open-plan extension to allow homeowners more space for hosting friends and family.

A rear extension can help make the most of your home’s floor plan while two-storey extensions are a cost-effective way to improve your home’s capacity through an extra bedroom or bathroom. You could even go all out and combine an extension with a loft conversion to completely transform your property into the house of your dreams.

How Builders West Sussex can help

Builders West Sussex has been building home extensions across East Sussex and West Sussex for over 50 years. During that time, we’ve worked with a huge variety of properties serving customers in the wider Burgess Hill area including Bolney, Hickstead, Hassocks, Pyecombe and beyond. If you have a specific project in mind, please don’t hesitate to contact us today.

Our team is happy to start from a blank canvas, where you have a vision of your extra space and simply need a qualified team to complete it. Small extensions can be entirely your own vision but for larger, more complex extensions, we recommend professional design guidance.

We work closely with architects and designers to create a plan that blends with the style and structure of your existing home and come up with exciting and innovative configurations to make the most out of your space and budget.

We can guide you through the planning requirements and design options for contemporary homes and listed buildings alike. Our process means keeping you involved at every stage to ensure you are completely satisfied with the progress, and remain part of every decision.


  1. Do I need planning permission for a property extension?

Most building extensions fall within permitted development rights, meaning planning permission will not usually be needed. There are certain specifications that must be adhered to, and there are exceptions for listed buildings and conservation areas where planning consent is required. It is always a good idea to contact your local planning officer to double-check and get confirmation in writing. If planning permission must be obtained, we can guide you through the process.

  1. Do I need building regulations approval for the works?

Yes, you definitely do. All single-storey and double-storey extensions, garage conversions and loft conversions require building regulations approval from your local authority. The purpose of these regulations is to ensure that safety measures are in place and that a set of standard construction and design specifications are adhered to.

  1. I have no idea how to start planning my house extension. Can you help?

Builders West Sussex is a reputable family firm providing a wide range of domestic building services in Mid Sussex for 50 years. We are highly experienced when it comes to planning property extensions are can help you with the process from start to finish. Simply give us a call at 01273 841707 or 07775 832518 to get started.

  1. Will a property extension add value to my home?

According to figures from the Nationwide Building Society, a quality house extension can increase the value of your property by 12-23%, depending on the size of the project. A garage conversion can boost the value by an average of 20% and a loft conversion by 21%. Done well, enlarging the habitable space in your home is one of the best investments you can make. Consulting with a local estate agent can give you a better understanding of how much value your extension can add to your home.

  1. Does my home insurance cover an extension?

A property extension will involve alterations to your home and should increase its value. It’s important that you get in touch with your insurance provider to inform them of the extension work being carried out. Your policy is linked to the value of your home so if that increases it could impact what is covered, while you must ensure that your contents are protected, particularly during the building phase. If your insurance provider is unwilling to renew your policy following the extension you may need to find a new one.

how can we help you?

Contact us on 01273 841707 or submit a business enquiry online.

“Builders West Sussex provides a service which combines pro-active, positive construction services at the highest level of quality with a keen understanding of their Client’s requirements and a superlative professional management structure. The result is a construction company of supreme capability and first-class performance.”

Nick Swann


Looking to extend or improve your home? We have over 50 years’ experience providing high-quality home extensions and renovations across East and West Sussex Our experienced team can handle projects of any size, from small-scale works like loft conversions to major rebuilds and new-build extensions. Contact us today on 01273 841707 for a free, no-obligation quote.


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