Basement Conversions Belgravia

We offer a turnkey basement conversion service in Belgravia, beginning with simple concept ideas, planning, and finally the building. process

Design and Build Basement Company in Belgravia

At Basement Conversion London, we take pride in our ability to offer innovative basement design solutions in Belgravia. Our integrated design process ensures coordination, from start to finish while incorporating eco-building materials and technologies. With an emphasis on quality craftsmanship, our ultimate goal is to provide excellent customer service that exceeds expectations.

As a Design & Build Basement conversion company in Belgravia, we specialize in handling every aspect of basement conversion projects across Central London and the surrounding areas. From planning stages and design processes to excavation construction of the core base, waterproofing, fit-out, and completion—we've got you covered. Our team of experts includes design consultants, basement designers, structural engineers, and builders with over a decade of experience creating stunning homes throughout Belgravia. 

Basement Conversions in Belgravia: Expanding Luxury Below Ground

Belgravia, one of London's most affluent and well-known neighborhoods, is home to some of the city's most distinguished properties. Defined by its elegant white stucco terraces and garden squares, this area boasts an exclusive, quiet charm that attracts homeowners looking for the best in luxury living. While space in Belgravia comes at a premium, many homeowners are turning to basement conversions to expand their properties without compromising the beauty and heritage of the neighborhood.

A basement conversion in Belgravia presents a fantastic opportunity to increase your living space while adding significant value to your property. But more than just an increase in space, these conversions allow you to create highly functional and personalized areas that reflect your lifestyle. The possibilities are endless, whether you are looking to build a home cinema, a private wellness suite, a wine cellar, or additional guest accommodations.

basement-conversions-belgravia-1.jpg

CUSTOM DESIGN BASEMENT

We specialise in high-quality custom Basement Conversions across Belgravia and around other areas in London. We have built numerous bespoke basement conversions in Belgravia which are fully tailored to the client's personal requirements and preferences. Our Basement Conversions in Belgravia allow families to add habitable space to their homes without the need to move home. We offer you a complete design and build package with a turn-key option too. We cover everything from design, excavation, construction, waterproofing, fit-outs, and all other basement conversion requirements.

While basement conversions can offer a great deal of extra living space, they come with specific challenges, particularly in an area like Belgravia. Many of the properties in this prestigious neighborhood are listed or located in conservation areas, meaning that care must be taken to preserve the historical and architectural integrity of the building. Working with a specialist team experienced in navigating the complexities of planning regulations is crucial. At Basement Conversion London, we have years of experience converting basements in Belgravia and other high-end areas across London. Our team works closely with local authorities and heritage bodies to ensure that your conversion project adheres to all necessary guidelines, without compromising on quality or design.

Contact us

basement-conversions-belgravia-2.jpg

BASEMENT CONVERSION PROCESS

At Basement Conversion London, we are fully committed, to delivering a transparent basement conversion experience in Belgravia starting from the concept all the way to the final completion. Our comprehensive approach begins with a site survey and a meticulous design phase. We then create drawings and detailed structural calculations, which form the basis for a customized quotation tailored specifically to your basement project in Belgravia. Once you approve our quotation our skilled architects take care of obtaining planning permission ensuring that construction can begin smoothly. Throughout the construction process we maintain open lines of communication keeping you informed and involved at every stage. Finally, we work diligently to successfully complete your basement conversion in Belgravia. Our dedicated team is always available to discuss any aspect of your basement project in detail ensuring that you are completely satisfied.

basement-conversions-belgravia-3.jpg

Basement Construction Costs Belgravia

Looking for a stress-free basement conversion service that is specifically tailored to meet all your needs? Our team of professionals will begin by conducting a complimentary assessment of your property followed by providing you with a detailed and accurate estimate. This estimate covers every aspect of your basement construction project ensuring transparency and clarity from the beginning. Our quote will cover all aspects of the basement build including the costs of:

  • Stage 1: Excavation
  • Stage 2: Efficient disposal of waste materials
  • Stage 3: Underpinning for stability
  • Stage 4: Thorough waterproofing and tanking solutions
  • Stage 5: Selection of subflooring materials
  • Stage 6: Inclusion of all materials and labour costs
  • Stage 7: Internal Fit out and finishing work.

With our expertise, you can trust that your basement construction in Belgravia will be a streamlined and well-coordinated process from start to finish. The Average basement costs in Belgravia starts from £150,000 plus VAT. Read more about a Basement Conversion in London

Increasing the Value of Your Belgravia Home

One of the key advantages of basement conversions is the value they can add to your property. In an area like Belgravia, where homes already command significant price tags, increasing your usable space can substantially increase property value. A well-executed basement conversion can offer a return on investment far beyond the initial cost, mainly when the space is designed to enhance the luxury appeal of the home. Beyond just increasing the value of your property, a basement conversion can make your home more versatile and enjoyable to live in. With Belgravia being such a desirable location, ensuring that your home is optimized for both current and future use is a smart investment.

Read More

basement-conversions-belgravia-4.jpg

Personalized Design for Your Belgravia Home

One of the most appealing aspects of a basement conversion is the opportunity to design a space entirely customized to your needs. In Belgravia, homeowners often seek to create additional living areas that exude luxury, offering spaces for relaxation, entertainment, and even work. Common features include home gyms, spas, cinemas, and wine cellars. However, you can create any space you envision with the right design team. We begin each project with a detailed consultation to understand your conversion goals. Whether you have a clear vision in mind or need help brainstorming ideas, our architects and designers are experts at transforming underground spaces into beautiful, functional areas. We focus on integrating cutting-edge technology and high-quality materials, ensuring that the final result matches the sophistication of your Belgravia property.

Get a Quote

basement-conversions-belgravia-5.jpg

Hassle-free Basement Conversions and ROI

Basement conversion a great way to boost the value of your property especially in the thriving Belgravia housing market. By adding a basement, you can increase the value of your home by 10 to 15% and, in some areas across London this figure can even reach up to 20%. However, we understand that home improvement projects often come with worries and complexities. At Basement Conversion London, we specialize in creating stress free basement conversions specifically designed for Belgravia properties. Our aim is to minimize disruption to your life. From designs and obtaining planning permissions to structural calculations and construction work we take care of everything for you. Each project is assigned a Project Manager who will be your go to person for any questions or concerns you may have. With Basement Conversion London, transforming your basement in Belgravia isn't about increasing the value of your home; it's also, about enjoying a hassle-free experience from beginning to end.

Contact Us

EXPLORE THE TYPES OF BASEMENTS

Kitchen

Cinema

Guest Lounge

Bedroom

Gym

Swimming Pool

Bathroom

Wine Cellar

Bar

Kids Room

Stages of your basement extension project in Belgravia

START TO FINISH

From the moment you contact Basement Conversion London, we make it our priority to provide you with the best possible service. From the initial meet up at your property in Belgravia, our office team will always be available to answer any questions or concerns you may have. Our dedicated project manager will also be available to offer support and guidance throughout the basement conversion process.

DESIGN AND CONSULTATION

We understand that every basement project in Belgravia is unique, and that's why we offer a fully inclusive service that can be tailored to your specific needs. Whether you require the expertise of our Architectural Designers, Structural Engineers, or building control application specialists, we have the experience and skills to deliver exceptional results. We are also happy to work with your own Architectural Designers and design team if you already have one in place. Our team's flexibility and willingness to collaborate means that we can seamlessly integrate our services with those of your existing team.

LOCAL AUTHORITY APPROVAL IN BELGRAVIA

When it comes to local authority approval, we understand that navigating the regulations and requirements can be a daunting task. That's why we take care of all the necessary paperwork and submissions on your behalf. We will ensure that your project in Belgravia is compliant with all building regulations and requirements and that all documentation is submitted correctly to your local council authority in Belgravia.

Upon commencement of works, your dedicated Project Manager will be onsite all day every day, providing you with a single point of contact for any issues or updates regarding the project's progress. We believe in clear communication and transparency, and our Project Manager will keep you informed every step of the way.

ROUTINE BUILDING CONTROL CHECKS

A Building Inspector will make an appointment to visit at regular stages throughout the project in Belgravia, their job is to ensure that we are adhering to all the latest building regulations. Upon completion of works, the Building Inspector will make a final visit and you will be issued with a completion certificate.

CERTIFICATES

Upon completion of all basement conversion works in your Belgravia home and having gained approval from The Building Inspector we will supply you with all relevant safety certificates.

Popularity of Basements in Belgravia

Basements and cellars have gained popularity among Belgravia residents who want to make use of the space beneath their ground floors and transform it into a pleasant living area. Additionally, this extra underground space can be utilized for items such, as boilers, water heaters, parking spaces, and smart air conditioning systems. It's worth noting that in Belgravia, basements are often renovated to a high standard and used as habitable spaces.

The excavated cellar areas offer an opportunity to expand the living space below ground in homes. Renovating basements in family detached houses has become increasingly popular in London as long as it aligns with flood risk assessment regulations. However, constructing basements in central areas of London can be more challenging due to stricter regulations. Having neighbors, in Belgravia could potentially help reduce heating and cooling costs associated with basement renovations.

basement-conversion-belgravia-tanking-waterproofing.jpg

Tanking and Waterproofing

Tanking is the superior building technique for underground structures that effectively controls water infiltration from the external soil. Our method utilizes draining channels to remove excess water, while a robust tank surrounds the walls and base of the basement, protecting it from infiltrations. We employ top-of-the-line cavity drain membranes, channel drains, and sump pumps, installed redundantly with alarms to ensure flawless operation. Our secondary pumps take over when the primary fails, while alarms signal any issues with the correct functioning of the pumps, such as battery exhaustion. Waterproofing is an essential component of any structure, underground or overground, to prevent dampness caused by water infiltration. At Basement Conversion London, we pride ourselves on our in-house expertise to design and implement the latest technologies and the most effective waterproofing systems, ensuring your basement is built to last.

basement-conversion-belgravia-planning permission.jpg

Planning and Permitted Development Requirements

In Belgravia, permitted development for basements is strictly limited to non-substantial alterations. Any excavation for a basement must have planning permission, which requires a complex application process involving extensive documentation, reports, investigations, and specific conditions unique to basement conversions. However, the approval rate for basement conversion planning applications is typically very high, as councils frequently grant permission. While the result is predictable, the application process is longer and more costly than standard extension applications, such as loft conversions or rear extensions.

basement-conversion-belgravia-shell-and-core.jpg

Shell-and-Core and Fit-Out

When it comes to converting a basement, choosing the right basement conversion company in Belgravia is crucial. With Basement Conversion London, you have access to a pool of highly specialized basement builders for every stage of the project. Our construction project manager is also a structural engineer, ensuring that the final structure of your basement is not only safe and solid, but that the entire process is carried out with maximum safety and control.

Shell-and-Core

During the shell-and-core phase, we excavate and extend the volume of your basement, using temporary supports to protect your existing structure. The result is a waterproof, reinforced concrete box that forms the external structure of your basement. We only work with subcontractors who have a proven track record of successfully damp proofing basements. Trust Basement Conversion London to deliver a basement conversion that is safe, reliable, and built to last.

Fit-Out

The subsequent stage is the fit-out, comprising of electrical and plumbing work, wall construction, flooring, lighting, plastering, and painting. With Basement Conversion London, you need not fret about locating the suitable tradespersons for each task. Our project manager will oversee everything and keep you informed on the project's status, schedule updates, and decision making at the appropriate juncture. They will assist you in clarifying your necessities and making decisions throughout the fit-out's duration until it is finished.

FAQ'S ABOUT BASEMENT CONVERSION ANSWERED

Do you have a question about Basement Conversion in Belgravia? Below we have listed the most frequently asked questions.

  • Why Should I Convert my Basement in Belgravia?

    If you have outgrown your home and are finding it difficult to move due to the current housing market, a basement conversion may be the perfect solution for you. By adding a whole new floor to your home, you can create a luxurious space for a home gym, cinema room, bedroom, bathroom, entertainment area, or even a swimming pool. Don't hesitate to invest in a basement conversion if you need extra space but don't want to move. It will completely transform your home and give you the space you need to live comfortably.

  • Is Planning Permission Required for a Basement Conversion?

    Planning permission may be required for a basement conversion in Belgravia, depending on the situation. However, building regulations must always be followed. Our expert basement contractors will guide you through the entire process and handle all necessary applications for planning permission and approvals.

  • Do I need to have an existing Basement?

    You do not require an existing basement for your conversion. Basement Conversion London has the expertise to construct your basement from scratch and can provide guidance on the options available for your property.

  • Do I need to move out during the Construction Process?

    Clients are not required to move out during the construction of their basement. It is completely optional and up to their preference. However, it is possible for clients to live at their property during the conversion process, even when heavy work is being carried out.

  • What is Basement Waterproofing?

    Basement waterproofing is a crucial process that effectively halts water damage in below ground areas of your property in Belgravia. Our team of basement waterproofing specialists are equipped to determine the most suitable waterproofing system, based on the construction, and intended use of the area. Trust us to provide the necessary solutions to protect your property from water damage.

  • Are Basement Conversions in Belgravia worth it?

    A basement conversion in Belgravia is an excellent solution to expand your property and boost its value by 10-15%. If you already have a basement, it's a wise decision to make. Don't hesitate to add extra space to your home with a basement conversion.

  • How long does a Basement Conversion in Belgravia take?

    A basement conversion project in Belgravia typically takes several months to complete. We confidently handle all necessary permits and permissions, ensuring a seamless process from start to finish. Simple basement conversions can take just a few weeks to complete, however, basements conversions that require digging out, pumping, floor lowering, and a number of other things can take a number of months to complete. Basement Conversion London will work with you closely to ensure you understand the timeframes involved for each stage of the basement conversion project.

  • Are there any specific building regulations that need to be followed when converting a Basement in Belgravia?

    Converting a basement in Belgravia requires strict adherence to building regulations. Safety codes, fire regulations, and structural requirements must be met without compromise to ensure a legal and successful conversion.

  • Can a Basement Conversion in Belgravia add value to my property?

    Undoubtedly, a basement conversion in Belgravia will add significant value to your property. By creating additional living space, you will appeal to a wider range of potential buyers and increase the overall value of your home. Don't hesitate to invest in this valuable upgrade that will pay off in the long term.

  • How much does a Basement Conversion in Belgravia cost?

    The cost of basement conversion in Belgravia is determined by various factors, including the scope of work, size of the basement, and addition of natural lighting. Our pricing strategy is tailored to each client, ensuring that they receive a competitive quote that meets their specific requirements. Rest assured that we offer a decisive and efficient approach to basement conversions.

  • Do you need a pumping system for a Basement Conversion?

    Absolutely! If you've experienced basement flooding in Belgravia, then it's imperative that you have a drainage and pumping system installed before proceeding with your conversion. Moisture levels in basements can be unpredictable, which is why a sump pump is the most reliable choice for ensuring your basement stays dry and protected. Don't take any chances - invest in a pumping system for your basement conversion today.

RECENT BLOG POSTS


Investing Downwards: The ROI of Basement Conversions in London

Investing Downwards: The ROI of Basement Conversions in London In the city of London, where space is at a premium, homeowners are exploring downward expansion to create more living areas and potentially boost the value of their properties. Basement conversions have emerged as an investment opportunity in London's real estate market. What is the Return on Investment (ROI) when it comes to transforming basements in this cosmopolitan city? Let's dig deep and discover the hidden potential beneath our feet. A Desirable Space Solution London's real estate market is constantly evolving with a demand for space, homeowners are seizing the chance to enhance their property value by extending downwards. By converting basements into stylish spaces there is potential to transform previously unused square footage into prime living or working areas. A Lucrative Financial Outcome Basement conversions in London can indeed lead to gains. According to experts in the industry, a well-planned and executed basement conversion can increase your property's value by 10 20%. Considering London's already soaring property prices this percentage represents a boost. Considering Investments However, embarking on a basement conversion project involves more than focusing on the value. It's a decision for homeowners to consider factors such, as construction costs, legal permits, and design complexities. In the heart of London, the cost of converting a basement can vary depending on factors like the size and complexity of the project. So it's important to analyze the investment potential to ensure a return on investment (ROI). Catering to Market Trends One overlooked aspect is tailoring the conversion to meet market demands. This could involve creating a home office that caters to the growing trend of work or designing an extravagant leisure area complete with a home theater and wine cellar. Aligning your basement conversion with market demands can significantly boost its ROI. Embracing Sustainability; An Added Benefit Today buyers are increasingly interested in energy-efficient homes. By incorporating eco features into your basement conversion you not only reduce your carbon footprint but also enhance the property's appeal in the market and consequently increase its ROI. The Importance of Expert Guidance To fully unlock the ROI potential of a basement conversion in London it is crucial to partner, with experts who understand both the market intricacies and technical aspects involved in projects. Their guidance can streamline the process prevent mistakes and maximize your investment returns. In conclusion, embarking on a basement conversion in London is an opportunity that holds the potential for increasing the value of your property and meeting the demands of modern living. It's not about gaining space but also about unlocking possibilities and seeing your property become a profitable asset....

READ MORE
Interior Design of the Basement

Interior Design of the Basement When it comes to designing the interior of your basement you can start once the construction of the basement shell and core is underway. There are factors to consider for your basement design as well, as specific requirements for fixtures and fittings;1. Roof lights and light wells; It's important to have these in place to allow light into your basement improving its atmosphere and livability. Read more about lights in the basement here. 2. Windows, both internal doors; The choice of windows and doors can greatly impact energy efficiency, security, and the overall aesthetics of your basement.3. Staircase, floor, and wall finishes; Opt for finishes that are durable moisture resistant, and complement the design of your home.4. Sanitary ware, tiles, and paint colors; These elements play a role in creating a look throughout your basement.5. AV (Audio Visual) security systems IT networks; Make sure you plan for installations such, as visual equipment, security systems, and network access points. 6. Heating, Ventilation, Air Conditioning: You will need to plan on how you will heat, cool, and ventilate your basement to maintain comfort and avoid moisture and damp build-up problems. 7. Light fittings and furniture selections: Your overall design theme, personal style, and budget will also determine these selections. You can hire a professional interior design company to give your basement a nice design and an efficient project flow too. Interior designers can help in creating a cohesive design scheme and advice on certain product selections too. Given the number of products, materials, and finishes that are required to be selected, an experienced interior designer can make the process easier and help you avoid any unforeseen issues.  Do remember that when hiring an interior designer, check that they have the technical knowledge within the basement construction sector. They should be experienced in understanding all the technical details and designs such as lighting plans, floor layouts, and more. If possible tell them to create a CAD package of drawings and detailed specifications which will allow us as the building company to get clear instructions when building your basement. ...

READ MORE
Basement Conversion Guarantees and Insurance

Basement Conversion Guarantees and Insurance At Basement Conversion London, we believe it's very important to have guarantees and insurance in place. This safeguards our customers if anything goes wrong with your basement construction. Rest assured you will be covered. Take the following scenario, your basement starts to leak and the contractors who built it are no longer in business. In this dilemma how will you fix the problem? In addition, when you decide to sell the property buyers inquire about the guarantees in place.  At Basement Conversion London, we advise our customers to take into account the following: Builder Company Guarantees: This is the guarantee from the London basement conversion builders that the work undertaken will be free from any defects for the stipulated period. If any issue arises within this timeline due to poor workmanship or poor materials, the builder will be obliged to fix the problem at no extra cost. Waterproofing Guarantees: These are usually divided into three categories, starting with: The Design Guarantee: This covers the waterproofing design, ensuring it's fit for purpose. The Product Guarantee: This covers the waterproofing materials used in the basement construction, assuring that they'll perform as expected for a certain period. The Installer Guarantee: This guarantee is from the installer, assuring that the waterproofing system has been installed correctly. Insurance Backed Guarantees (IBG): An IBG is an insurance policy that provides cover if the original contractor ceases to trade and is, therefore, unable to honor their guarantee. This could be due to any reason such as bankruptcy, liquidation, death, or retirement. Latent Defects Insurance: This is also known as structural warranty insurance. This covers the cost of remedying structural defects that become apparent after the completion of the basement building project. These are defects that were not detectable at the time of completion and take time to appear on the surface. Building's Renovation Insurance (Joint Names): This is the type of insurance taken out by the builder and the client together. It will cover the client and the contractor for any loss or damage to the works and site materials during the period of renovation.  Each of the above forms of protection plays an important role in managing and deterring the potential risks involved in a basement conversion project. Always ensure that the necessary coverages are in place before beginning any...

READ MORE
Basement Inspections and Excavations

Basement Inspections and Excavations During the construction phase, it is important to appoint an approved Building Control Inspector from the local authority in your Borough or a private one. Their role will be to monitor the progress of the construction work and ensure that the basement structure complies with the Building Regulations. The inspector will visit your project site in stages, which will be coordinated by your basement contractor.Excavation and Construction of the Concrete BoxOnce all preliminary tasks have been completed we can finally begin with the basement construction work. This stage involves excavating the basement area and creating the structure commonly referred to as a " box." Basement Conversion London ensures we follow the build to your design specifications. We ensure that all work strictly follows the approved design and avoids any modifications as that can lead to issues down the line. At a level here are the main steps involved in the construction process;Excavation; After confirming that the site is safe and ready for construction Basement Conversion London's team will start digging out space for your basement. We undertake this task with care to avoid any damage, to your house foundation or nearby structures.Foundation work; If it is required, we may need to underpin your foundation to handle the weight added by having a basement.  To evenly distribute the weight of the building this process involves extending the foundation either in depth or breadth.Constructing the basement; Once the area is prepared, we start building the concrete structure of the basement. This forms what we refer to as the "shell" or the basic structure of your basement.  Waterproofing; Once the shell build is complete, we take measures to waterproof it and prevent any moisture from seeping into the basement. This includes applying specialist waterproofing materials to the walls and installing a drainage system if needed. Inspections; Throughout these stages, your Building Control Inspector will conduct inspections to ensure that all work is being carried out in accordance, with approved plans and regulations.Remember, maintaining communication, with your contractor during this process is crucial. Keeping a line of dialogue will help resolve any issues or questions that may arise promptly...

READ MORE
Carrying Out Important Surveys for Your Basement Conversion in London

Carrying Out Important Surveys for Your Basement Conversion in London The third step to achieving a basement conversion in London involves conducting a series of surveys. These surveys will guide the design process provide information for the planning application and help identify any technical challenges that may arise during construction. Types of Surveys Required for Basement Conversion Before commencing your basement conversion project you will typically need to complete the following surveys; 1. Soil Structure Survey; This survey examines the composition of the soil at the desired excavation depth. Identifies any concerns related to the water table level. This information is vital to ensure a stable basement construction in London. More information about Soil Surveys. 2. Drainage Survey; This survey determines the location of drains around or beneath your property and garden. Understanding this helps assess how the basement construction might impact your existing drainage system. Depending on drain placement you may require an agreement from your water utility provider known as a "build over" agreement. Read more about the Drainage survey here. 3. Site Dimensions Survey; This survey provides measurements of your property which are essential for designing and planning your basement conversion effectively. 4. Tree Assessment Survey; This survey examines any trees in both your garden and neighboring gardens to evaluate their susceptibility to damage during excavation, for the basement. To proceed with your basement conversion, in London, it's important to consider any trees that may be subject to a Tree Preservation Order. Here is a great article by Crown Tree about Tree surveys.  Additionally, it is crucial to conduct a Flood Risk Assessment for your property. This assessment will evaluate the flood risk. Greatly influence the design and construction of your basement conversion. To lay down a foundation for your project these surveys play a role. The insights gained from these surveys directly impact the planning, design, and execution of your basement conversion. By conducting these surveys upfront you can proactively address any challenges that may arise. Remember that starting with knowledge sets the path to success. Conducting accurate surveys is a step, towards ensuring a seamless and hassle-free basement conversion. It is always advisable to seek guidance during this process....

READ MORE