Basements Conversions Services in Brighton

At Clifton Hill and Montpelier Builders & Construction, we specialise in designing, constructing, conversion of basements and cellars, basement underpinning, basements retro-fitting, new build basements and underground damp proofing in Brighton, East Sussex and surrounding areas. From underground pools and gyms to basement offices, wine cellars and state-of-the-art media rooms  —we offer our customers exactly what they want.

Whether you are a homeowner or a property developer, we offer you a full basement construction service that is tailored to your needs —from conception to the final decorating and finishing.We even take care of planning and building regulations.

It doesn’t matter if your project involves the reconstruction of an existing room, new building in the basement, or a modernisation of the basement in the existing structure, we have the know-how to give you what you want.

Get in touch today to find out how we can convert your basement to a perfectly usable space.

Our Guarantee

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Why Convert a Basement? 

At Clifton Hill and Montpelier Builders & Construction and Renovations, we take away the hassle of moving houses by converting your existing basement into a usable space.Basements are traditionally underutilised in residential and commercial properties. This is due to the fact that basements were originally built for storage and did not have any form of waterproofing, which caused the basement surface to be moist, dark, and not suitable for modern living.

A full-size basement can make up one-third of the available space in a building, but it is often used only to store items that cannot be damaged by moisture. But these days, basement conversions are a great option because they offer extended living spaces.

Basement conversions can increase the usable area of ​​the house.A professionally converted basement can be used as an office, playroom, bedroom, basement studio, an additional bathroom or home cinema.

Another advantage of converting your basement is that you often don’t need a building permit to convert it. You do this when you add a basement or some other type of extensions, but because the basement is already part of the house, you can often convert it for any purpose without needing building permission.Permission may, however, be required if you plan to add an entrance or windows to the basement. Therefore, always contact your local planning department to be sure.

Clifton Hill and Montpelier Builders & Construction can transform any basement into a useful living room, adding a new dimension to your home. After complete conversion, the basement will be totally unrecognisable, and more importantly, it increases the value of your home.

Check out some of the results that we have achieved for our clients.

What Can Your Basement Be Used For? 

Artista Renovations in Brighton has experts who can convert a basement to be used for any purpose. Unlike the lofts at the upper part of the house, which are best suited for creating additional bedrooms, the basement is located near the main living rooms and access, so you can use it more flexibly.

You can use the basement as a functional space in the house. You can turn it into a room and rent it to people looking for affordable accommodation.

You can also use the basement as a rentable storage space.If you do not necessarily want to earn money, you can turn the basement into a room for your children, a family playroom, a multimedia room or a movie room. You can also use it as a garage or maintenance room.

At Artista Renovations, we have the skills and resources to convert regular basements into offices, gyms, swimming pools, parking lots, bedrooms, vaults, and wine cellars.If you need extra space in your home and want to convert your basement, get in touch with us to discuss your project needs.

Types of Basement Conversions We Do

Artista Designers can convert any kind of basement, effectively transforming a damp, useless space into a functional part of the house. 

Our basement conversion services cover: 

  • Basements under the house;
  • Basements under the garden;
  • Sub basements;

  • Daytime basement;
  • Walkout basement;
  • Underground crawl spaces.

Basement Conversion Design 

Thanks to our experienced and proven design team, which includes architects, engineers, and interior designers, Clifton Hill and Montpelier Builders & Construction can provide you with all kinds of design input needed for the perfect basement conversion.Our architectural designs and diagrams will give you an accurate picture of how your basement will look. If you’re happy with your plans and approved the budget, we can apply for the necessary approvals, where needed.Our basement conversion project contains information on assessing conversion potential, introducing light into the basement, ceiling height, and practical aspects such as drainage connection etc.

Basement Conversion Survey 

Artista Renovations team are experts in basement conversion surveys. Basement survey allows us to assess your current property and evaluate the feasibility of transforming a basement or building into a new basement.We are fully trained and experienced in using the latest groundwater, moisture control, and monitoring systems, and we have approved installers for some of the leading products in the UK and EU.

Our experienced basement surveyor will advise on the possibility of converting or renovating the basement. Based on our current knowledge of basement conversion and fashion trends in basement design and use, we can help you get the most out of your basement in a cost-effective way.Request a free basement conversion quote today.

Basement Waterproofing Contractor in Brighton

Damp and wet basements can be converted into usable rooms by means of a cavity membrane basement waterproofing system.At Clifton Hill and Montpelier Builders & Construction, we offer comprehensive basement conversion and extension services in Brighton and the surrounding area. Our services cover all types of basement conversions as well as waterproofing, and decorations.

Our basement renovation services meet building, structural, and planning requirements.As a registered company dealing with building waterproofing, our damp proofing jobs come with an insurance backed guarantee.

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Is Your Basement Suitable for Conversion?

At Artista Renovations, we understand that no two projects are the same and what works for one project may not work for another. Whether you are converting a basement from a storage room into a kitchen, study, living room or bedroom, you need to consider several key factors to determine if your basement is suitable for conversion.


Basements rarely get enough natural light. If you already have windows, this light problem is solved, but where there are no windows, a source of natural lighting will have to be created. At Artista Buildings, we can figure out the best way to light your converted basement so that your space is completely usable and livable.


Before you can start planning to convert your basement, it is important to determine if there is a damp problem.. Even if the damp is poor, it can still be converted, although it may be expensive.Some basement conversions may require damp testing to avoid problems with rotting wood.


You need to remember your neighbours when undertaking a conversion to the basement and what impact the work will have on them. You will most likely share a party wall with your neighbour if you live on a terrace or semi-detached house. Inform your neighbours of any work that you are undertaking and seek a party wall agreement to ensure that their property is not disturbed by your work.

Walls and Foundations

If there are supporting walls in your basement that prevent you from using the room as you wish, some may be removed. Nonetheless, it is a big (and probably expensive) task and should only be performed by experts, such as our Artista basement conversion team.

Building Access

Does your property have appropriate on-site access for builders to remove soil and waste, carry and store machinery, and store materials while causing minimal disruption during the renovation project? This may impact the speed and cost of your conversion project.

Why Choose Clifton Hill and Montpelier Builders & Construction?

We minimise risk and deliver the highest quality. Working with basements can be risky without the experience and skills of a qualified contractor. Also, water and moisture can cause constant problems if they are not properly addressed at an early stage of the project.At Clifton Hill and Montpelier Builders & Construction, we take pains to minimise the risks involved in basement conversion and always endeavour to deliver the highest workmanship.

Delivering the Exceptional

If you want to make the most of your basement conversion or new basement construction, we can provide amazing results. Check out our gallery to see some of our amazing basement renovation projects. We go beyond just creating a functional space and devote the time and passion for creating something beautiful.

We have over 10 years of experience

Over the past 10 years, we have become the leading contractor in Brighton, East Sussex. We are proud of the level of service our clients receive and constantly strive to improve our services.

Full Service, from Design to Build

Whether you need a new extension or a new build construction, our project management approach provides punctual and budget-oriented results. We work with you to offer solutions that meet or exceed your requirements, while always meeting your budget. The difference between us and other contractors lies in our obligation to offer a professional and honest service from the first order to the end of the ordered work.

Dedicated Customer Service

In addition to the project manager, Clifton Hill and Montpelier Builders & Construction has a special customer service hotline, which is available to all customers. This team is on hand to answer your every question and provide any information you need concerning your conversion project.Our management team will also be in constant contact with you throughout the entire project to see if you are satisfied with the service received.

Competitive Prices

We offer competitive and budget-friendly services for people who want to improve their homes.Our trusted local construction company guarantees that you will receive the perfect final product that will make you happy. If you want to have the best basement renovation company at your disposal, Clifton Hill and Montpelier Builders & Construction is the place for you.

Basement Conversion Cost

Artista Renovations understands that every project is different and that different factors influence project costs. 

To help you plan, here is a general guide on basement conversion costs to give you an idea of what to expect:

  • Conversion of the existing basement: £750 – £1.400 per square meter;
  • Lowering the floor level and supporting the existing basement: £1500 – £2000 per square meter;
  • Dig and support a new basement: £2,000 – £3,000 per square meter;
  • Digging a new basement under the garden: £1,500 – £2,000 per square meter;
  • Creating a light well/external access: £5,000 – £7,500;
  • Engineering charges: £1000 – £1500;
  • Planning permission, if necessary: ​​£165;
  • Application of building regulations: £750 depending on the value of the work done;
  • Party wall agreements, if needed: £700 per neighbour;
  • VAT: Contractors registered in VAT add another 20%;

Artista offers some of the most competitive prices in the area, so you will not have to rob a bank to pay for basement work.

Get in Touch

Contact us to discuss your basement project and its costs.We will work with you to get the maximum benefit from your property at your budget. We plan, design, and build basements for existing and new buildings in Brighton, East Sussex.

Use our live chat, email address or phone number to get more information, book a free on-site visit, or get a free quote.

Call 01273 257 224 to chat with someone about your basement conversion today.

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Is a Basement Conversion Worth it Financially? 
Many homeowners love their home and don’t want to move, but they need more space. Often the only answer is extending to the basement. Thankfully, a basement conversion is a cost-effective way to get the space you need without moving houses. It is also a sound investment compared to paying for and moving into a new house.
Can all Properties Have a Basement Conversion?
Most basements can be converted, but this depends on a variety of factors such as the location of the property, the local council —if there is a nearby river and other factors. One of our surveyors can tell you immediately at the site visit whether the project is possible or not.
Can I Live in the Property During the Project?
In most cases this is possible. As long as we can get free access into the house, you may be able to live on the property while we work. However, this is usually a disruptive project as we will need to move equipment in and waste out.
Why are Basements Colder Than the Rest of the House?
Basements are usually more humid than other places in the house. This is often caused by water seeping through the concrete foundation, rising from a damp floor, or simply due to poor ventilation.
Will I need Planning Permission?
Since a conversion won’t change the building’s external appearance, you probably won’t need planning permission. However, you will need permission if you plan to create a self-contained dwelling. It is also likely that if additional windows and doors are to be added, permission will be needed. We will be happy to advise on planning permissions while planning your basement conversion project.
How Long Does a Basement Conversion Take?
The duration of a basement renovation can vary considerably depending on the scope of work. Basement conversions typically take only a few weeks but some complex projects can take on average from several months to a year.

If our expert has visited your site and understands the scope of your work, we will advise you to plan the time for your project as accurately as possible.

How Long Does it Take for Plans to be Approved?
The approval timeline depends on the council so you may need to contact them to find out how long before your application is approved. However, we understand how the system works and can advise you on how you can prepare your application so that the process is sped up.
Could the Conversion Damage my Foundations?
Wherever there is the slightest risk to the structural integrity of your property, our conversion experts will request additional support from our structural engineers.

If any support or another type of reinforcement is required, we will inform you and work with you to get this handled. All our work is fully insured, so you can rest assured that everything will be taken well care of.

How Far Do You Take the Project?
To the point where the customer just needs to think about what colour to use and what floor coverings they want. Artista Designers can also organize this work for you.
Do I Need to Advise Neighbouring Homes or Businesses?
Yes, you may need a party contract to protect yourself and your neighbours. We can help you if you want.
Do You Offer a Full Basement Package?
We can supply the entire basement package, including interior fittings or just excavate basements and cores, work on the substructure, ceiling, waterproofing, and screed.

Visit our services page or contact us for more information on the services we offer.

What is the Most Common Use for a Basement Conversion?
In most cases, people want extra space in the home for a living room or kitchen.
How do I Decide on the Interior Design Specification?
The complete detailing of materials, fixtures, and fittings is typically included in our design process. That’s how we prefer it, as we see the entire space holistically.

If you want help with the whole interior design scheme, we have excellent interior designers who can join the project team and complete the final furnishings and decorations to add any finishing touches that are necessary.

Are Basement Bedrooms Legal?
First, not all basement rooms require a legal exit window, but basement rooms are not allowed without this window.

Nowadays, every room the size of a bedroom with a wardrobe is considered a bedroom, regardless of what is planned. When it comes to size requirements, expect that you will need a window with a 5.7 square foot opening.

What Makes a Basement Finished?
A finished basement means that the basement has covered and painted sheetrock, floor covering, moulding, doors and windows, heat and light installed.

If you have any other question you would like answered, don’t hesitate to get in touch with our basement conversion team at Artista Conversions in Brighton.

Call 01273 257 224 to ask your questions or write to

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