Are you dreaming of a larger living room, a spacious open-plan kitchen, or an extra bedroom? A home extension or roof superstructure is the perfect solution to create more living space and comfort while significantly increasing the value of your property. At Globalbouw, we specialize in realizing high-quality extensions and superstructures in the Rotterdam and South Holland region. We guide you from the initial design to the final screw, with a single point of contact for a worry-free process.

 

The Possibilities: Ground-Floor Extension or Roof Superstructure?

Creating extra space can be done in several ways. The two most popular options are a ground-floor extension (aanbouw/uitbouw) and a roof superstructure (opbouw) for an additional floor.

• Ground-Floor Extension: Ideal for extending your living room, creating an open-plan kitchen, or adding a conservatory. An extension is built onto your existing home, increasing the square footage on the ground floor.

• Roof Superstructure: Do you have a flat roof or want to convert your attic into a full-fledged floor? A superstructure is the most efficient way to add extra rooms, such as a master bedroom, a home office, or a hobby room.

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What Does a Home Extension or Superstructure Cost in 2025?

 

One of the most important questions is, "What will it cost?". The price depends on the dimensions, choice of materials, and the desired level of finish (shell-only or fully finished). To give you a clear picture, we have prepared an overview with guide prices.

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Permits & Regulations: What You Need to Know

 

For an extension or superstructure, an environmental permit (omgevingsvergunning) is often required. This is particularly true if the extension is deeper than 4 meters, higher than 5 meters, or located at the front of the house. The rules can differ per municipality. Globalbouw has the in-house expertise to advise you and can manage the entire permit application process, ensuring your project complies with all regulations.

 

Ready to expand your living space? Contact us for a no-obligation consultation and a detailed quote!