Robbert Maarsen and Julia de Jong have been designing interiors since 2007. Not as two separate disciplines. As one process. Robbert knows the trade from material to logistics. Julia combines design insight with strategic thinking. Together they do what most studios can't: the full trajectory, from first sketch to last detail, in two hands.
A beautiful rendering isn't enough. A design needs to hold up when the contractor proposes different materials, when delivery times slip, when decisions have to be made on site. That's where projects go wrong in practice. Choc Studio is there to prevent it.
- from introduction to realisation -
We invite you to our studio in Bennebroek. Here you tell us about your wishes, how you live, what inspires you. Our studio immediately shows who we are and at what level we work. We discuss the possibilities for your project and how we can work together. After this conversation, you’ll receive a detailed quote within one week. No obligations, just a good conversation.
We develop a complete interior design: floor plans, 3D visualisations, lighting design, color, product and material plans, mood boards. In our studio you can see and feel products and materials: fabrics, wood, stone, metal. Multiple design sessions ensure the design is exactly right. Each project receives a custom approach: we don’t use ready-made templates.
Depending on your choice, we either guide the execution or take everything off your hands. From coordinating contractors to purchasing, storing, and placing furniture and styling. We work with a reliable network of specialists: kitchen builders, bathroom suppliers, flooring contractors, painters, upholsterers. You work directly with us – the owners – not with junior staff.
"Our new-build house had turned out beautifully, but it still needed an interior to match. After some searching we found Choc Studio. Julia and Robbert created several plans, which we eventually combined into one. With their smart ideas they turned our house into a home, something we could never have achieved on our own. We are still impressed by the result."
"When we realised that an interior architect could take our new home to the next level, we started looking and found Choc Studio in Haarlem. Everything we saw on their website appealed to us, so we booked an appointment. From the very first meeting, we knew it was the right choice. We already loved the stylish, contemporary atmosphere in the 3D proposals but now that we live in it, it’s even better."
"We admired the work of several interior designers, but we didn’t want too much bling. It still had to feel like our home, not the architect’s. At Choc Studio in Haarlem we found an atmosphere that resonated with us. They created a warm and liveable interior: classic with a modern chic twist, perfectly suited to who we are."
"We moved into our new house and bought some furniture, but it never really felt cosy and we couldn’t figure out why. After a few years of struggling, we decided we needed professional help from an interior designer. Choc Studio lifted our entire interior to the next level and struck exactly the right tone."
"I wanted to give my new home a high-end upgrade and decided to call in Choc Studio. I’ve known Robbert and Julia for some time, and they beautifully designed my previous home as well. Choc Studio listened carefully and translated my wishes into clear interior advice for this house. We quickly agreed that gold would add the glamour touch I was looking for. Subtle enough not to be kitsch, yet present enough to create a sense of richness."
"We’re usually very hands-on and don’t easily hand things over. But for the design of our home we placed our full trust in these interior designers. During his very first visit Robbert came up with ideas we immediately embraced. That is the real value of working with professionals: they bring solutions you didn’t even know were possible."
"I’m very happy I chose to work with Choc Studio. At first I only intended to outsource the living area, but it quickly became clear that the kitchen and bathroom had to be included too. In the end I handed everything over. Choc Studio coordinated the plumber, electrician, painter, wallpaperer and more - and even moved, unpacked and styled everything for me."
"I immediately clicked with Choc Studio and felt confident I could leave everything in their hands. Within a month, under Robbert’s direction, the entire house was renovated and Sanne and I were able to move into our new home. That first moment I had the remarkable feeling of stepping straight into Choc’s 3D design - a very special experience. The result is truly beautiful."
"Right after buying the property we went straight to Choc Studio. They had beautifully designed our previous home in Haarlem, so we knew they would make the most of this one too, as it was delivered as a bare shell. Julia and Robbert did brilliant work here, they literally thought of everything in this house."
"The moment we visited the design studio in Haarlem, we were sold. The style and atmosphere were exactly what we were looking for. Julia and Robbert advised and guided us wonderfully, understanding perfectly what we wanted. In the final days before moving in, Choc Studio placed and styled everything. We were overwhelmed. It was even more beautiful than we had imagined."
Two owner-designers. You work directly with Robbert and Julia from start to finish. Short lines, fast decisions, and no one losing the thread of your project.
We have no proprietary collection. That gives us access to the full range of brands and suppliers: from international design labels to Dutch craftspeople. Our recommendation is always based on what best suits your design and budget.
In our studio in Bennebroek we present designs and show materials. Fabrics, wood, stone, leather, metal. Examples of lighting, kitchen details and furniture. Here you get a direct sense of the level at which we work and the choices available for your project.
Robbert has worked across the full spectrum: from IKEA to Eric Kuster, from budget to high-end. Julia combines design insight with strategic thinking, from marketing strategist and project manager to interior designer. Since 2007 we've worked together and know exactly what it takes to go from design to completion.
We work with an hourly rate of €95. After our initial meeting, we provide a detailed quote based on your specific project.
Yes. We offer three options: design only, design with guidance during execution, or design with guidance and furnishing included. Most clients choose the second or third option, but the choice is yours.
That depends on the trajectory:
- design only: 6-12 weeks
- design and guidance: 10-20 weeks
- design, guidance and realisation: 20-40+ weeks
The timeline is influenced by project complexity, your decision-making, supplier delivery times and any structural modifications. Each project is custom, so we provide a realistic timeline after our initial meeting.
You work directly with us: Robbert and Julia. No handoff to junior designers, no communication layers. Personal contact from start to finish.
Yes, we're bilingual. All communication, presentations, and documentation can be in English or Dutch, whatever you prefer.
We primarily work in Haarlem and surrounding areas (North Holland and Utrecht provinces). Have a project elsewhere? Get in touch - we're happy to explore the possibilities.
Large firms often have 10-100+ employees and work multidisciplinary (architecture + interior + building physics). We're a boutique studio: more personal contact, faster decision-making and fully focused on interiors. No bureaucracy, just expertise.
No. We do have our own signature - modern chic, layered, comfortable - but that's our vision, not an obligation. The interior needs to suit you, not us. That's why we first listen carefully to how you live and what you find beautiful. Our portfolio shows that each project looks different.
We deliberately have no showroom or proprietary collection. That gives us access to the full range of brands and suppliers. We can also handle the purchasing completely: we select products, request quotes, coordinate delivery times, arrange storage and transport, and ensure placement and styling. You have one point of contact for everything.