How to Create Depth and Character in Duplex Apartments: Techniques for Volume and Rhythm
17.03.2025
A duplex apartment isn’t just about extra square footage—it’s about the interplay of volumes, shadows, and rhythms. Here, architectural lines become part of the narrative, and lighting directs perception. The key is layering: every element interacts with the space and tells its own story.
The Staircase as a Sculptural Statement
A staircase isn’t just a functional feature—it’s the visual anchor of the space. Its design should flow seamlessly within the volume, enhancing both structure and atmosphere.
For example, a spiral concrete staircase with slim glass railings adds fluidity without overwhelming the space, while wooden steps appearing to grow out of the wall create a feeling of weightlessness.
For example, a spiral concrete staircase with slim glass railings adds fluidity without overwhelming the space, while wooden steps appearing to grow out of the wall create a feeling of weightlessness.
📌Technique:
In high-end projects, designers use the “floating staircase” technique—where steps are mounted invisibly within the wall, and subtle step lighting creates a levitating effect.
Multi-Layered Lighting: Precision Without Overexposure
Lighting in duplex apartments isn’t just about brightness—it’s about shaping perception. A popular technique is “suggestive lighting”, where only key areas are illuminated, while others remain in soft shadow.
How It Works:
• Local lighting on textured surfaces enhances their depth.
• Concealed niche lighting provides a soft, ambient glow instead of stark contrasts.
• Linear lights along the second-floor boundary emphasize the verticality and architectural rhythm.
How It Works:
• Local lighting on textured surfaces enhances their depth.
• Concealed niche lighting provides a soft, ambient glow instead of stark contrasts.
• Linear lights along the second-floor boundary emphasize the verticality and architectural rhythm.
Use indirect floor lighting for a floating effect and visual depth without harsh illumination.
Pro Tip
Acoustic Design as an Architectural Element
High ceilings and open layouts require sound management, not just for comfort but also as part of the aesthetic. Modern designs integrate textile panels, wooden slats, and sculptural ceiling elements, which not only enhance acoustics but also enrich the space visually.
📌Technique:
Natural, dense materials like linen, felt, and wood are used as decorative yet functional acoustic elements, maintaining a light and elegant atmosphere.
Textured Verticality
In duplex apartments, vertical surfaces should be active. Instead of plain walls, designers use materials that add texture and movement, enhancing depth and interaction with light.
Techniques:
• Embossed wall panels that shift with light and shadow.
• Full-height drapery that connects levels and elongates the space.
• Wooden slats or ribbed panels that create rhythm while doubling as acoustic elements.
Techniques:
• Embossed wall panels that shift with light and shadow.
• Full-height drapery that connects levels and elongates the space.
• Wooden slats or ribbed panels that create rhythm while doubling as acoustic elements.
Ribbed glass or patinated metals add sophisticated texture while subtly filtering light between levels.
Pro Tip
Connecting Levels with Green Accents
Plants should not be decor accessories but structural elements that tie the two levels together. Vertical greenery, large sculptural plants, and suspended gardens help soften architectural lines and bring life into the design.
📌Technique:
Opt for plants with architectural form, such as Ficus Lyrata, large-leaved palms, or cascading hanging gardens that visually link floors.
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Conclusion
A duplex apartment is more than just a two-story space—it’s an opportunity to sculpt volume, rhythm, and atmosphere. Depth is achieved not through excessive décor but through thoughtful architecture, lighting, textures, and vertical accents. It’s not about “more” or “expensive”—it’s about precision, balance, and a space where everything feels intentional.