• Renovation plans?

    discuss renovation plans ...


    Are you considering renovation plans or have questions about your interior, lighting or spatial layout?

    Get a clear picture of what is possible,

    Budget discussion and insight into costs is very pleasant.


    All of this will be discussed in a free consultation



  • Design and renovation costs

    The costs of a renovation cannot always be accurately estimated in advance.

    Based on the initial designs, we can create a clearer picture of what a potential renovation will cost.


    Of course, a fixed price can be quoted for designing, supervising construction, and preparing a budget – yes, without any unexpected additional costs.



  • My style

    When designing an interior, I consistently seek tension and contrast – contrasts in height and width, dark and light, but also in the use of materials.

    I always strive for a strong and timeless whole - pure use of materials is a must - and I like to push the boundaries of what is technically feasible.

    I prefer to work out a design in detail and set the bar high for myself and for the executing parties ... the winged saying "can't do it - doesn't exist" is ingrained in my work.

    My years of experience in furniture production and knowledge of materials certainly contribute.


    I strive for a design with a mature, timeless and unique look, but I certainly do not shy away from using color or even graphic elements.


    An HGN design is sustainable, personal, modern and one that translates the customer's wishes.

    A truly good design is created through clear and personal dialogue with the client.

  • Cooperation

    I am clear, investigative and personal in my work.

    My experience, particularly in renovating my own home, has taught me how important it is to keep communicating.


    A renovation is an intense process, preceded by the creation of a design – communication is also crucial here – because I create the design together with the client.


    The aim is to realise a livable design, always with a powerful and surprising approach to design.


    You can contact me for a wide variety of projects – design is in my DNA, which means that not only interiors but certainly also product designs are among the possibilities.

Trustpilot reviews:


Ralph is incredibly dedicated, practical, and very creative in his solutions. He's thoughtful and considerate of our budget and communicates clearly. If needed, he even helps with things like installation. I highly recommend him!

Geert Heutmekers




Google reviews :


Ralph Hagen was commissioned by the Fortress Museum Foundation to design the spaces in the Helpoort in such a way that they could be considered a museum-like setting. He shared with us his fresh approach to the limited space available. He succeeded brilliantly in transforming the oldest fortress gate in the Netherlands into a true Fortress Museum. The collaboration was more than excellent, always willing to go the extra mile, both in the planning and execution. Koos Consten, Chairman, Fortress Museum Maastricht