Bricknest realizes professional extension projects for homes, from a well-thought-out addition to a functional expansion that adds extra living space and makes the house better suit your daily use. We oversee the entire process from design to delivery and ensure an extension that is technically sound, visually cohesive, and realized turnkey.
Personal project manager
Digital dashboard
1-year warranty + €500,000 insurance
★★★★★ 5/5 rating on Google Reviews
Expanding a home requires more than just extra square meters. The new space must logically connect to the house, function pleasantly in daily use, and be technically well-connected to the existing structure. This is exactly why many clients choose a solution that not only makes it larger but also makes living better.
A house addition is often the right choice when there is a need for a new, distinct expansion of the living volume, for example for an extra room, home office, utility room, or other functional space. A home addition offers the opportunity to expand the home without drastically changing the entire existing layout.
For clients, this provides more peace of mind. They are not looking for separate contractors, but a partner who centrally organizes design, construction, finishing, and planning, and carefully monitors the entire process.
Anyone wanting to have an addition built benefits from a process where each phase logically connects to the previous one. That is why Bricknest guides the process step by step: from design and preparation of the construction site to the erection of the structure, finishing, and delivery. This keeps the project clear and organized, and reduces the chance of delays and execution errors.
Bricknest combines a professional construction team with clear planning, quality materials, and careful execution. This creates an extension that is not only built correctly but also remains durable in use and logically connects to the home.
More space, more ease of use, and an extension that is technically and visually sound.
Home extensions in Amsterdam require more than just extra building volume. Existing buildings, limited space on the plot, and the connection to the current home make every project technically and practically unique.
Bricknest realizes addition and expansion projects with attention to structure, residential use, and the on-site situation. This creates an extension that does not feel like a separate addition, but as a logical and strong part of the house.

BEFORE

AFTER
In Arnhem, we built a backyard extension that enlarges the living area on the ground floor and connects it more directly to the garden.

BEFORe

AFTER
In Haarlem, we built a roof extension with a 0.4 m increase in the 1st floor height and a new load-bearing floor for the 2nd floor. The intervention adds a full-scale extra floor, with plenty of daylight via dormers and HR++ skylights, improved insulation and a sophisticated layout for a future bathroom.
An extension should do more than just add extra square meters. Bricknest ensures an addition or expansion that logically connects to the home, works pleasantly in daily use, and truly feels like a home improvement.


Your dedicated project manager monitors planning, execution, and coordination between all construction phases. This makes even a larger extension project clearer, more peaceful, and more manageable.
Through the digital customer portal, you can clearly track planning, documents, and project updates in one place. This way, you keep a grip on a process where many steps and disciplines come together.

Anyone looking to quickly create extra space without compromising on quality can greatly benefit from a prefab addition. This construction method makes it possible to prefabricate large parts of the extension, making on-site work more efficient and often limiting inconvenience.
Bricknest guides prefab projects with attention to sizing, technical connection, and finishing. This creates an extension that can be installed quickly and at the same time meets the requirements regarding insulation, comfort, and daily use.
Assembly and preparation
The installation of a prefab addition requires precise preparation of the foundation, connection points, and the construction site. Once that base is ready, the components can be efficiently assembled and neatly finished, so that the new space connects well technically to the existing home.
Functionality and comfort
A well-designed extension helps to enlarge the home in a way that is truly noticeable in daily life. When you want to expand the living room, for example, it creates more light, more room to move, and a more spacious layout that better suits how you live.
Realized faster, tightly prepared, and strong in finishing.









A rear extension is a popular solution for those who want to expand their home on the garden side and create more living space in the kitchen, dining area, or living room. By extending the back of the house, a more open and lighter layout is often created, with more connection between indoors and outdoors.
Bricknest realizes rear extensions with attention to the foundation, structural connection, natural light, and a neat integration with the existing building. This creates an extension that does not feel like a separate addition, but as a logical part of the home.
With a rear extension, Bricknest starts with a technical plan and careful preparation of the foundation and construction site. This is followed by the erection of the structure, placement of the load-bearing elements, finishing, and delivery, ensuring the entire process remains structured and manageable.
Clients choose Bricknest because of transparent budgets, clear planning, and continuous quality control in every phase of the project. With an individual approach and a dedicated point of contact, even a complex extension project remains clear and reliable.
Bricknest realizes extensions that add extra space and at the same time logically connect to the existing home, the layout, and daily use. Both classic additions and faster modular solutions are technically and visually tailored to the house.
A house addition is suitable when there is a need for a new, clear expansion of the living volume, for example for an extra room, workspace, or functional living zone. Bricknest realizes a home addition with attention to structural connection, user comfort, and a finish that logically fits the existing home.
For those looking to create extra space more quickly, Bricknest also oversees projects involving a prefab addition. This solution makes it possible to build efficiently with tight preparation, while the extension remains comfortable in use and suitable for expanding the home or, for example, practically extending the living room.
We start with a conversation about the space you want to gain and the way the home needs to change. This creates clarity regarding function, layout, and type of extension.
We translate the plans into a technically feasible extension, with attention to the connection to the existing home and the daily use of the new space. This lays the foundation for a project that is logically and reliably constructed.
We carefully coordinate planning, materials, and preparatory works. This allows the construction to proceed in a structured manner and ensures all phases remain better connected to each other.
During execution, Bricknest monitors the progress of the foundation, construction, and finishing. The dedicated project manager keeps the process clear and ensures all disciplines are well-coordinated.
Upon completion, we check whether the extension has been executed correctly and connects well to the home. After that, we deliver the project as a fully-fledged part of the house.
You may worry about the quality of work, the reliability of the team, or the safety of your investment. That's why we created the Bricknest Double Guarantee—an extensive promise to ensure your complete satisfaction and ease any concerns.
We fully stand behind the craftsmanship and materials used. If anything breaks within the first year after your renovation, we will fix it promptly and professionally—no questions asked. Our dedicated team is committed to ensuring everything is in perfect order so that your new space continues to bring you joy every day.


Your home is one of your most valuable assets, and we treat it with the utmost respect. Our comprehensive insurance coverage of €500,000 ensures that your property is fully protected throughout the renovation process. This means that in the unlikely event of unforeseen circumstances, you are fully covered.
An addition is usually a new space added to the home as an extra volume. An expansion more often enlarges an existing space by extending the home further out.
When extra space is needed that cannot logically be found within the existing home layout, an addition is often the stronger solution.
A prefab addition can shorten the construction time on site and helps make quality and dimensions more predictable.
Yes. Especially with an expansion, the existing living space can become more open, lighter, and more spacious without the project feeling like a separate room.
Because that is where construction, insulation, finishing, and daily comfort come together. A good connection largely determines whether the extension truly feels like part of the house.
Not automatically. The possibilities for a rear extension depend on the plot, house type, structure, and desired function. Therefore, this is always assessed on a project-by-project basis.
Yes. Bricknest oversees the process from preparation and planning to construction and delivery as one cohesive project.
Because Bricknest treats home extensions as fully-fledged integrated projects, with attention to gaining space, comfort, connection, and long-term quality.
Our renovation experts are eager to meet you and start creating your dream space. During your personal consultation, we’ll identify key issues, understand your preferences, and discuss possible limitations.
We believe in full transparency and want you to move forward with confidence. That’s why our detailed quote will include the following:
Comprehensive Task Breakdown: Clear descriptions of each step in your renovation. Understand exactly what work will be done and why.
Itemized Costs for Raw Materials: Transparent pricing for all essential building materials. No hidden fees—know exactly where every euro goes.
Selection and Cost of Finishing Materials: Detailed options for tiles, fixtures, accessories, and more. Choose from high-quality materials that suit your budget and style.
Labor Costs: A clear overview of all the costs for craftsmanship.
All Additional Costs: Including permits, waste disposal, and other expenses. Full transparency to avoid surprises later.
Design Project Costs (If Needed): A professional design package to visualize your dream space.