Home Extensions Services in Brighton

Home extensions are a great way to add more space and value to your property. Regardless of the home extension you have in mind, our team at Clifton Hill and Montpelier Builders & Construction can help you achieve your goals.

We will take care of all planning permissions, whether you intend to extend up or down.As long as your property allows room for extension, we have a range of options to take advantage of your budget.

Clifton Hill and Montpelier Builders & Construction work together with your designated architect and the local planning authority to deliver a building extension to improve your living space. We take pride in using only the most appropriate materials for the job, so you can rest assured that you will get a high-quality finish.

What Are the Benefits of Extending Your Home?

Save on Stamp Duty

One of the good things about adding more space to your existing home is that you don’t have to pay stamp duty or agent fees, because you will not have any need to move house.  This should free up more budget to create a truly individual space that suits your family.

Financial Gain

Because house prices usually double every decade, it’s likely that a home extension will pay off in terms of financial returns if you want to live in your house for longer. You will also have a lot of years to enjoy the practical benefits of a home extension.

Home Extensions Solve Problems

In addition to the possible financial benefits, it is also worth knowing that home extensions will solve a lot of practical problems you are facing in your home such as ageing, leaky conservatory, clutter, small kitchen space, and so on.

Increase the Value of Your Property

Thanks to our home extension solutions, you will not only enjoy greater comfort and living space but also ask a higher price if you ever decide to sell off your home. It doesn’t matter if you have completed the construction of a new room or whether space has been increased by about a meter, the value of your home increases.

Types of Home Extension We Do

Loft Extensions

A loft extension can significantly increase the value of your property by up to 20%. Many families are deciding to extend their loft to get more space without having to endure the costly and stressful removal process.A loft extension is less disruptive than other extension projects: if you want to extend your original living space.

Basement Extensions

If you want to create additional space in your home that will suit your needs and requirements, a basement extension is your solution.

Most Victorian homes and older home types with suspended wooden floors are ideal for basement extensions, excavation work, and extending existing cellars. If you want to discuss your project and are looking for a free, no-obligation offer from a professional basement extension company in Brighton, you can always contact us.

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Single-Storey Extensions

A single-storey extension is a perfect way to create additional living space in your home while designing your living space to better suit your lifestyle. It is the perfect idea for a new, open-plan living which offers ideal family rooms and is loved by potential future buyers.

Many single-storey extensions fall under what is known as permitted developments, meaning that you may not need extensive paperwork.

Our home extension services

Single-Storey Rear Extensions

Expanding the rear of your single-storey property is another popular way to create more living space and provide significant added value.
But for this to happen, you need to make sure you have the right people for the project from the beginning. Single-storey rear extensions are relatively easy, but a small mistake can quickly lead to stress, delay, and extra cost. Contact Clifton Hill and Montpelier Builders & Construction today for the perfect home extension.

Two-Storey/Multi-Storey Extensions

Two-storey or multi-storey extensions can be added to any part of an existing building, as can a single-storey extension.

These types of extensions are built to adjoin to an existing building and can offer significant extra space. However, building regulations approval is needed.

Kitchen Extensions

A kitchen extension is a perfect opportunity to improve your kitchen or the entire ground floor of the house by simply changing the layout, introducing natural light, and adding devices that can make your life easier. It is one of the most valuable home improvement projects anyone can make, resulting in significant added value to the property.

Garage Conversion

Converting a garage is one of the cheapest ways to increase living space and improve property value by up to 10%. Depending on the scope of work, planning permission may not be needed, but you will have to apply for building regulations approval before the work can commence.

Side Extensions

A side extension is a good way to take advantage of unused or underutilised garden space in your home. This creates a much larger, open space, ideal for kitchen, dining, and living space.

This type of extension is also a great opportunity to introduce more light into a terraced house, with large skylights, window panels, bi-fold or sliding doors that create a bright, modern home

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Over-Structure Extension

The over-structure extension is usually carried out over a garage or existing single-storey extension. Unfortunately, it is not always easy to build directly on an existing structure, especially in a garage where load-bearing walls are weak, and therefore, cannot carry the weight of another floor.

The foundations of the existing building will also be examined to determine whether they are strong enough to support the extra weight.

At Clifton Hill and Montpelier Builders & Construction, we have the experience and resources to handle this kind of project, giving you a strong and durable finished product.

Side Return Extension

Side extensions are quite popular with Victorian terraced houses, where the original structure has a strip of land to the side of the house, forming an L-shaped garden. By extending sideways, you can reclaim unused space and transform it into a spacious room for virtually any purpose.

A side return extension is considered to be permitted development, which means it does not require a building permit as long as it meets certain criteria.

Ultra-Roof House Extensions

Ultra-roof house extensions combine the thermal properties of bricks with the best solutions of light roofs covered with tiles. Ultra-roof extensions offer a wonderful vaulted ceiling on the inside and authentic-looking lightweight tiles on the outside. Glazed panels can be inserted to provide breath-taking light effects.


Orangeries are typically built with a perimeter roof, a suspended roof lantern or glass lantern, as well as a set of French-style doors or folding doors.

The orangery itself is a custom-made structure that can be designed to fit any property, even if space is limited. These structures can act as home extensions and can be created for a variety of purposes, including offering more space in kitchens and living rooms, or as a structure to connect two buildings.


A conservatory is by definition a non-habitable space because it is not sufficiently insulated for people to live in so it is usually connected to the main house via an interior door.

There are so many reasons why investing in a conservatory is a good home improvement decision. Not only does this extra structure provide more space for the family, but a conservatory, properly designed, can also be used for a variety of functions: game room, a study, children’s room, a guest room, or simply a place to hang out at the end of a long day.

If you are looking to extend your property with a conservatory, very few contractors in Brighton can deliver as well as Clifton Hill and Montpelier Builders & Construction.

Types of Accommodations You Can Get By Extending Your Home:

  • Cinemahall
  • Children’splayroom
  • Gamesroom
  • Winecellarandwinetastingroom
  • Humidor/smokingroom
  • Gymnasium
  • Sauna
  • Swimmingpool
  • Massageroom

  • Spa
  • Study
  • Guestroom
  • Bar
  • Nightclubclubdancefloor
  • Bowlingalley
  • Recordingstudio
  • Luxuryparkinglot
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Planning Approval

The type of home extension you choose determines if planning approval is required. Some extensions fall within the scope of acceptable development rights. For example, if the structure remains 2m or more from the boundary and is less than 3m high, permitted development will apply.

If you want to learn more about planning permission and permitted development rights or want to arrange a first survey and consultation with our company, call 01273 257 224 to speak to us one-on-one or send a quick mail to info@builders-brighton.com.

Why Choose Us

We Translate Your Vision to Reality

We try to keep our work process as simple and as straightforward as possible and help translate your ideas into reality without complicating things for anyone. Even though we try to make our processes simple, we still use the most current innovations and observe current best practices in construction.

Many Years of Experience

Thanks to our many years of experience and knowledge in the construction industry in Brighton industries, we are able to offer you high-quality services while maintaining competitive costs. Contact Clifton Hill and Montpelier Builders & Construction today if you want a professional home extension in Brighton.

We Work Closely with You

From project evaluation to building an extension with the necessary building permits, at Clifton Hill and Montpelier Builders & Construction we are constantly working with you to achieve the perfect extension of the house you’ve always dreamed of.

Bespoke Home Extensions

Do you need a custom house extension which also doubles as a dining room? Or would you like a stunning orangery kitchen extension? Whatever your reason is for needing more space, Clifton Hill and Montpelier Builders & Construction has you covered.

Our thermally efficient and approved components are designed off-site for a fast, stress-free, and sophisticated prefabricated extension that is warm, inviting, and flooded with light throughout the year.

Beautiful and Functional Extensions

Whether you want to increase the value of your property or simply need more space, extensions are a great way to create inviting and functional areas for your home. We create extensions that are both beautiful and functional and give your home light and space.

Our team uses the latest technologies and high-quality products to design and create the extension you dream of.

Qualified Tradesmen

Here at Clifton Hill and Montpelier Builders & Construction, we specialise in home extensions, conversions, and renovations. We have a team of qualified craftsmen, including electricians and gas-safe plumbers. We can arrange planning, designs, building regulations and approvals, construction drawings, and manage the project until it is completed.

Contact Us

If you have unused space outside your home that can be better used as a living space, contact the experts at Clifton Hill and Montpelier Builders & Construction in Brighton. The right builder plays a role when it comes to successfully extend your home. Choose an experienced company that you trust.

When making your first request to Clifton Hill and Montpelier Builders & Construction, our team members will do their best to understand your goals before submitting a comprehensive quote, including time frame and costs. Contact us to receive a no-obligation quote and discuss your planning and extension requirements.

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Are Home Extensions Worth It?
Home extensions make sense as a long-term investment project. Because house prices usually double every ten years, it’s likely that a home extension will pay off in terms of financial returns if you want to stay in the house longer.
How Much Does it Cost to Extend Your House in the UK?
Because every home extension project is unique, it is difficult to determine how much an extension project will cost without first seeing the project scope and type of extension. Fortunately, we offer some of the most competitive rates in the area. Get in touch with us to talk more about your project, then we can give you a free, no-obligation quote.
How Long Does it Take to Build an Extension?
Depending on the size and complexity of the project, time can vary significantly. A small extension can take about 3 months, while a larger extension can take up to 6 months for completion. A new build project on a complex property can take 12-18 months.
Do I Need an Architect for an Extension?
If you designed the extension yourself, you may need the help of a designer or draftsman to create submission plans for approval (if necessary), as well as a structural engineer to create drawings and calculations for building registration.
Can my Neighbour Build an Extension on the Boundary Line?
Generally, your neighbour only has the right to build a boundary line (connecting line) between two properties, but there are circumstances in which he may legally build on your land. You can give them permission to build a party wall and foundations on your land.
Do I Need Planning Permission for an Extension to the Side of my House?
Basically, you don’t need a building permit to build an extension at the back of the house that doesn’t increase the original area of ​​the house by more than 40 square meters and is not higher than the house. However, it is a good idea to seek the opinion of your local council to be on the safe side.
Do You Need Planning Permission to Turn a Garage Into a Room?
A building permit is usually not required to convert a garage into an extra living space for your home, provided that the work is internal and does not require an expansion of the building.
How Much Can I Extend my House Without Planning?
Permitted development rules have recently become more permissive so that an extension of up to 6 meters and 8 meters for detached houses can be built without planning permission.
What is an Orangery in England?
An orangery is similar to a conservatory structure —both will have a large proportion of glazing on the side of the building, with a glazed roof feature that allows light and warmth to enter the room.
Is an Orangery Cheaper Than an Extension?
Conservatories and orangeries are often cheaper to build than single-storey extensions and a good way to increase the living space. The main difference between a conservatory and orangery is the structure of the brickwork.
Can I Put a Kitchen in a Conservatory?
Yes, but the conservatory with a kitchen must be well ventilated so that the heat can escape outside. There is no restriction on a kitchen conservatory design. In fact, the additional space can be used as a dining room in the kitchen or for additional kitchen units or appliances.
Will an Orangery Add Value to a House?
An orangery can add almost as much value to a property as a traditional extension.
How Do I Add an Open-Plan Extension?
The first step to adding an open-plan extension to your home is to talk to an architect about design options that match your home and align with your goals. You can also find out if you need a building permit to extend your property or whether it is exempted in accordance with permitted development rules.

To get more information about extending your property, send us an email to info@builders-brighton.com or call 01273 257 224 to speak to one of our experts. We are looking forward to hearing from you!

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