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2026/01/26

Jun Sung Park

Penthouse Interior Design: A Complete Guide to Elevated Living

With over 30 years of experience in architecture and interior design, RED believes that a penthouse is far more than just a place to live. It is a statement of lifestyle, individuality, and status. A successful penthouse interior design project requires a seamless balance of architectural thinking, refined aesthetics, and a high level of customization tailored to each homeowner.

In this guide, RED invites you to explore every aspect of penthouse living, from the definition and key characteristics of a penthouse, to space-by-space design approaches, the most influential design styles for 2026, and practical insights that help you optimize your budget while maximizing long-term value and functionality.

What Is a Penthouse in Contemporary Urban Living?

As cities become increasingly dense and land grows more limited, the penthouse has emerged as the ultimate expression of elevated urban living. More than simply the top-floor residence, a penthouse represents a lifestyle removed from the noise and congestion below, where homeowners enjoy privacy, tranquility, and a true sense of spatial ownership.

At RED, a penthouse is seen as the ideal canvas for highly personalized penthouse interior design. Every detail is thoughtfully considered, existing not for decoration alone but to enhance the homeowner’s daily experience, far beyond fleeting trends or purely visual appeal.

The Core Elements That Define Penthouse Value

The true value of a penthouse does not lie solely in its size or height, but in a unique combination of qualities that are difficult to replicate. Expansive, unobstructed views create a constant sense of openness and a strong connection to the surrounding cityscape. In penthouse interior design, natural light and panoramic views become integral design elements rather than mere features.

Equally important are the architectural advantages: high ceilings, flexible structural systems, and minimal columns. These conditions give architects and interior designers the freedom to explore double-height spaces, open layouts, and experiential zones such as private lounges, libraries, or even in-home spa areas.

The Emotional Dimension of Penthouse Living

One often-overlooked yet essential aspect of penthouse interior design is emotional well-being. Living in a penthouse is not just about owning a beautiful space, it’s about how that space restores and energizes you each day. From morning sunlight filtering through floor-to-ceiling windows to moments of quiet relaxation in a spa-like bathroom with open views, every experience contributes to a sense of renewal.

RED believes that when living spaces are designed with intention, a penthouse becomes a place where balance is restored, between work and life, movement and stillness. This philosophy is why RED’s penthouse projects consistently prioritize natural light, tactile and environmentally friendly materials, and layouts that reduce stress while supporting both physical and mental well-being.

Why Penthouses Are the Ultimate Stage for Luxury Interior Design

A penthouse offers what every interior designer seeks: creative freedom with purpose. Free from the limitations of compact floor plans or rigid structural constraints, penthouse interior design allows full exploration of verticality, spatial depth, and rich material contrasts.

At RED, penthouses are never designed as symbols of excess or display. Instead, they are crafted as living narratives, spaces that reflect the homeowner’s story. 

Common Types of Penthouses on Today’s Market

Identifying the right type of penthouse from the very beginning is a crucial step. Each typology leads to a different approach in spatial planning, stylistic direction, and overall penthouse interior design strategy. 

Based on RED’s hands-on project experience, the following are the two most common penthouse types encountered in practice.

Duplex Penthouse (Double-Height Living)

A duplex penthouse spans two levels connected by an internal staircase, making it an ideal choice for homeowners who appreciate spatial depth, architectural drama, and an elevated, art-driven living experience.

From a design perspective, duplex layouts allow for highly valuable features such as double-height living rooms, curated art galleries, and sculptural lighting elements that visually connect both floors. 

However, to fully unlock this potential, duplex penthouse interior design must be carefully planned, particularly in terms of functionality, natural light distribution, and circulation flow.

Design guidelines and practical considerations:

  • Place shared living areas on the lower level and private spaces upstairs to maintain quiet and privacy.
  • Treat the staircase as an architectural focal point rather than a purely functional element.
  • Avoid overusing heavy materials in double-height zones, as they can make the space feel visually dense.
  • Use glass or slim-profile metal railings to maintain openness while ensuring safety.

Single-Level Penthouse

A single-level penthouse features all living spaces on one continuous floor, offering ease of movement and straightforward functional control. This layout suits homeowners who value clarity, minimalism, and everyday convenience.

In single-level penthouse interior design, the main challenge is not square footage, but spatial organization. Without careful planning, the space can feel overly stretched or fragmented. Thoughtful zoning through lighting, material transitions, and subtle changes in floor height becomes essential.

Design guidelines and practical considerations:

  • Define clear functional zones instead of relying on solid walls for separation.
  • Maximize ceiling height and incorporate large glass openings to enhance openness.
  • Use kitchen islands, decorative partitions, or area rugs to create soft, flexible zoning.
  • Maintain a consistent design style throughout to ensure visual continuity.

Which Penthouse Type Is Right for You?

From RED’s perspective, there is no “better” penthouse, only one that better aligns with the homeowner’s lifestyle. Before beginning the design process, consider the following questions:

  • Does your household include multiple generations?
  • How often do you entertain or host gatherings at home?
  • What level of privacy and quiet do you require?
  • Do you prioritize experiential living or functional efficiency?

Clear answers to these considerations will help your penthouse interior design journey unfold more smoothly, saving costs, streamlining decisions, and delivering long-term value that truly supports the way you live.

How RED Approaches Space Planning in Penthouse Interior Design

At RED, space planning is not simply about arranging functional rooms, it is about creating a cohesive rhythm of daily life throughout the entire penthouse. Every zone is positioned with intention, given a clear role, and seamlessly connected to the overall spatial narrative.

I. Shared Living Areas – Open, Fluid, and Connected

In penthouse interior design, shared living spaces form the backbone of the home. These areas most clearly express the homeowner’s lifestyle, aesthetic sensibility, and approach to spatial organization.

RED designs these spaces with an open yet controlled mindset, ensuring a sense of openness while maintaining comfort, functionality, and long-term usability.

1. The Living Room – A Central Hub and Style Statement

The penthouse living room is more than a place to entertain guests; it sets the first impression upon entering the home. With generous ceiling heights, expansive floor plans, and panoramic views, this is where the essence of luxury penthouse interior design is most strongly expressed.

RED typically keeps the layout visually restrained while investing heavily in materials, lighting, and spatial proportions. The goal is understated sophistication, refined and timeless rather than overtly showy.

Practical design guidelines:

  • Position the sofa to face the best view or a key architectural focal point.
  • Avoid overcrowding the living room with excessive furniture.
  • Highlight vertical volume with high ceilings, statement pendants, or designer lighting.
  • Select durable, tactile materials such as stone, wood, leather, and premium textiles.

2. The Kitchen – Functional, Refined, and Seamlessly Integrated

In contemporary penthouse interior design, the kitchen is no longer hidden away, it has become an integral part of the shared living space. As a result, it must strike a balance between visual refinement, practical performance, and everyday order.

RED focuses on concealing technical elements and integrating smart storage solutions so the kitchen remains clean and composed when viewed from the living area.

Practical design guidelines:

  • Opt for linear, L-shaped, or galley kitchen layouts to maximize efficiency.
  • Built-in appliances help maintain visual continuity and a polished appearance.
  • Full-height cabinetry increases storage capacity without clutter.
  • Use high-performance ventilation systems to prevent cooking odors from spreading into living spaces.

3. The Kitchen Island – A Soft Divider Within Open-Plan Living

The kitchen island is a feature RED frequently incorporates in penthouse interior design, as it serves both functional and spatial purposes. It acts as a connector, a work surface, and a subtle divider between the kitchen and adjacent living or dining areas.

This approach preserves openness while providing clear zoning, an essential consideration in penthouse layouts.

Practical design guidelines:

  • Scale the island proportionally to the overall space to avoid obstructing circulation.
  • Consider integrating seating, storage, or a secondary sink.
  • Use quality natural stone or premium engineered surfaces for the countertop.
  • Add pendant lighting above the island to create a visual anchor.

4. The Dining Area – Creating Connection and Daily Rhythm

In most penthouses, the dining area sits between the kitchen and living room, forming a continuous axis of shared activity. RED treats this space as a transitional zone, intimate enough for family meals, yet refined enough for hosting guests.

Within penthouse interior design, the dining area should have its own character while remaining visually connected to the surrounding spaces.

Practical design guidelines:

  • Choose a dining table size that reflects everyday usage, not just occasional entertaining.
  • Pendant lighting above the table helps define the area and create warmth.
  • Select seating that is comfortable, durable, and easy to maintain.
  • Avoid placing the dining area in high-traffic zones or near strong drafts.

5. Transitional Spaces – Entryways, Hallways, and Circulation Paths

Spaces such as entry foyers, corridors, and walkways are often overlooked, but at RED, they are considered essential to the overall experience of penthouse interior design. These transitional zones ensure spatial continuity and elevate the sense of movement throughout the home.

Practical design guidelines:

  • Keep circulation areas uncluttered and visually calm.
  • Use indirect lighting to create a soft, sophisticated atmosphere.
  • Introduce artwork, display shelves, or distinctive materials to add character.
  • Ensure walkways are wide and intuitive for everyday comfort and ease of use.

II. Private Spaces – Designed for Calm, Comfort, and Emotional Well-Being

In penthouse interior design, private spaces are where homeowners truly reconnect with themselves. 

At RED, these areas receive the most delicate level of attention, as even a single misaligned detail can affect sleep quality, focus, and long-term emotional balance.

1. The Master Bedroom – The Most Personal Space in the Home

A master bedroom in a penthouse is not merely a place to sleep; it is a space for physical recovery and mental restoration. 

RED designs each master bedroom based on the homeowner’s daily habits, lifestyle rhythm, and personal aesthetic, rather than relying on a fixed design formula.

Practical design guidelines:

  • Position the master bedroom in the quietest area of the penthouse.
  • Use soft, neutral tones or colors that resonate personally with the homeowner.
  • Avoid placing the bed directly facing the entrance door.
  • Invest in high-quality mattresses, lighting, and tactile materials.

2. Secondary Bedrooms – Flexible and Purpose-Driven

In a penthouse, secondary bedrooms often serve multiple purposes: children’s rooms, guest suites, or short-stay sleeping areas. The design must therefore remain adaptable while still offering comfort and privacy.

Practical design guidelines:

  • Choose multifunctional furniture to allow future changes in use.
  • Keep color palettes light and neutral to suit a wide range of occupants.
  • Maximize built-in storage to maintain a clean, uncluttered environment.

3. The Home Office – Focused, Quiet, and Creative

For many penthouse homeowners, a dedicated workspace is essential. RED approaches home office design with simplicity, acoustic control, and abundant natural light, creating an environment that supports deep focus and creativity.

Practical design guidelines:

  • Position the workspace near a window while avoiding direct glare.
  • Keep furnishings minimal to reduce visual distractions.
  • Ensure effective sound insulation from shared living areas.

4. The Walk-In Wardrobe – Functional Luxury as an Experience

In high-end penthouse interior design, a walk-in wardrobe goes beyond storage, it becomes an experiential space that reflects the homeowner’s taste and refinement. 

RED pays close attention to lighting, layout, and materials so the space feels both practical and reminiscent of a private boutique.

Practical design guidelines:

  • Clearly separate hanging, folding, and accessory zones.
  • Use accurate lighting that preserves true garment colors.
  • Maintain generous circulation space for comfortable movement.

5. The Private Bathroom – A Space for Renewal

Private bathrooms are designed by RED as intimate spa-like retreats. These spaces allow homeowners to unwind, release stress, and recharge after demanding days.

Practical design guidelines:

  • Prioritize natural ventilation or operable windows whenever possible.
  • Use large-format stone surfaces for a luxurious feel and ease of maintenance.
  • Incorporate warm, adjustable lighting to support relaxation.

III. Leisure Spaces – The Added Value That Defines True Penthouse Living

In penthouse interior design, leisure spaces are what transform a high-end residence into a truly elevated living experience. These are not optional or secondary areas, they are essential environments where homeowners recharge, slow down, and express their individuality in the most personal way.

At RED, leisure spaces are viewed as the reward within the home, a place where daily pressures fade and emotional well-being is nurtured over time.

1. The Relaxation Bathroom – A Private Spa in the Sky

A penthouse bathroom goes far beyond basic functionality. RED designs these spaces as private, in-home spas where lighting, materials, and spatial flow work together to create deep comfort and relaxation.

Practical design guidelines:

  • Prioritize bathrooms with open views or access to natural daylight.
  • Use natural stone or large-format surfaces to enhance visual continuity and luxury.
  • Clearly separate dry and wet zones for comfort and safety.
  • Choose warm, dimmable lighting to support a calming atmosphere.

2. Balconies and Rooftop Gardens – Bringing Nature into Urban Living

One of the greatest advantages of penthouse living is access to expansive balconies or elevated gardens. These areas allow RED to introduce greenery into the urban environment, creating a vital balance between architecture and nature.

Practical design guidelines:

  • Select plant species suited to high-rise wind and sun exposure.
  • Use outdoor materials that withstand changing weather conditions.
  • Plan proper drainage and wind protection.
  • Avoid overdesigning, simplicity enhances visual calm.

3. The Lounge Area – A Space Designed for Slow Living

The lounge area in a penthouse is intended for quiet enjoyment—reading, listening to music, or sharing unhurried conversations. RED designs these zones as intentionally “slow” spaces, subtly separated from daily activity while remaining connected to the overall layout.

Practical design guidelines:

  • Choose locations with strong views or soft natural light.
  • Opt for comfortable furnishings such as plush sofas and lounge chairs.
  • Use indirect lighting to create warmth and intimacy.
  • Minimize noise-generating devices.

4. Mini Bar and Casual Entertainment Areas

A compact home bar is a popular feature in contemporary penthouse interior design, especially for homeowners who enjoy hosting intimate gatherings or unwinding in the evening without leaving home.

Practical design guidelines:

  • Position the bar in an accessible area without disrupting main living zones.
  • Keep the design streamlined to avoid occupying excessive space.
  • Use warm, decorative lighting to enhance ambiance.
  • Incorporate wine storage or display shelving to elevate visual appeal.

5. Dedicated Entertainment Rooms – Fully Personalized Experiences

Depending on the homeowner’s lifestyle, leisure areas can evolve into specialized spaces such as a private cinema, music room, yoga studio, or home gym. These rooms most clearly express the personality and lifestyle of the penthouse owner.

Practical design guidelines:

  • Clearly define the room’s function before beginning the design.
  • Ensure proper sound insulation to protect surrounding spaces.
  • Tailor furniture and lighting to the specific activity.
  • Maintain good ventilation and safety standards.

Popular Penthouse Interior Design Styles for 2026

By 2026, penthouse interior design is no longer defined solely by beauty or luxury. Instead, it is increasingly driven by personalization—reflecting the homeowner’s character, daily rhythm, and deeper emotional values.

Each of the styles below represents a distinct way of living. To fully realize the potential of a penthouse, these styles must be applied with a clear strategy rather than treated as surface-level aesthetics.

1. Modern Style – Adaptive, Efficient, and Urban-Focused

Modern style design reflects the fast-paced, efficient nature of city life, making it a natural fit for penthouse interior design in major urban centers. This style prioritizes functionality, open layouts, and flexibility, allowing the space to evolve as the homeowner’s needs change over time.

In a penthouse setting, modern design enhances the sense of openness through clean spatial organization, minimal ornamentation, and generous use of natural light.

Design guidelines:

  • Open-plan layouts that connect the living room, kitchen, and dining area.
  • Flat-profile furniture with crisp, defined lines.
  • Integration of smart home technologies for enhanced comfort and convenience.
  • Neutral color palettes that are easy to update with new décor.

2. Luxury Style – Refined Elegance and Quiet Confidence

Luxury in penthouse interior design is not about excess or visible opulence, but about mastering proportion, atmosphere, and emotional impact. This style celebrates precision, from subtle detailing and material finishes to lighting and furniture placement. When executed well, luxury feels effortless and understated, yet unmistakably premium.

RED approaches luxury through restrained forms, superior craftsmanship, and seamless transitions between spaces, ensuring the penthouse remains both prestigious and practical for everyday living.

Design guidelines:

  • Quality materials with natural textures, such as marble, wood veneer, and refined metal finishes.
  • Sophisticated neutral tones including cream, beige, soft gray, and deep brown.
  • Layered lighting schemes to add depth and visual richness.
  • Fewer furnishings, chosen for quality, scale, and refined detailing.

3. Minimalist Style – Less, but More Meaningful

Minimalism in penthouse interior design is not simply about reducing furniture; it represents a deliberate and mindful approach to living. By removing visual noise, this style creates calm, clarity, and space for focus, allowing homeowners to engage more deeply with what truly matters.

Minimalist penthouses often feel light, open, and timeless, especially when paired with strong views and abundant natural daylight.

Design guidelines:

  • Limit the color palette to two or three neutral tones.
  • Favor natural materials with smooth, tactile surfaces.
  • Concealed storage solutions to maintain visual order.
  • Every object should serve a clear purpose.

4. Classic Style – Timeless Grandeur and Prestige

Classic penthouse interior design conveys elegance, grandeur, and a strong sense of status. This style demands a high level of design expertise, as even minor miscalculations in proportion or material selection can make the space feel overly heavy or outdated.

When executed correctly, classic design delivers a majestic atmosphere with enduring aesthetic value.

Design guidelines:

  • Symmetrical layouts with clearly defined spatial axes.
  • Premium materials paired with large, statement chandeliers.
  • Rich decorative detailing applied with restraint.
  • Best suited for penthouses with expansive floor areas.

5. Neoclassical Style – Elegant, Refined, and Timeless

Neoclassical style is an ideal choice for homeowners who appreciate classical beauty but prefer a lighter, more contemporary interpretation. This style delivers a sense of elegance and balance, making it especially well suited to large penthouses with generous ceiling heights.

The success of neoclassical penthouse interior design lies in refined proportions, subtle molding details, thoughtfully selected furnishings, and a soft color palette that feels sophisticated without appearing dated.

Design guidelines:

  • Use delicate, restrained molding rather than heavy ornamentation.
  • Combine modern furniture with carefully chosen classical accents.
  • Favor light, neutral tones that are easy to coordinate.
  • Maintain a balanced, harmonious spatial layout.

6. Contemporary Style – Ever-Evolving and Adaptable

Contemporary design reflects the spirit of the present moment, allowing penthouse interior design to remain fresh without requiring major structural changes. 

This style prioritizes experience, usability, and flexibility, making it ideal for homeowners who enjoy evolution rather than permanence.

Design guidelines:

  • Blend current material and color trends thoughtfully.
  • Open layouts that allow décor to be updated easily.
  • Flexible, modular furniture that can be upgraded over time.
  • Well suited for homeowners who value change and innovation.

7. Scandinavian Style – Light, Warm, and Approachable

Scandinavian style introduces a sense of calm and comfort, encouraging slower, more mindful living. In penthouse interior design, this style softens large spaces and creates a welcoming atmosphere well suited to family life.

Design guidelines:

  • Bright, neutral colors paired with natural wood.
  • Simple, functional furniture with clean lines.
  • Maximize the use of natural daylight.
  • Keep decoration minimal and purposeful.

8. Indochine Style – Southeast Asian Heritage in a Modern Context

Indochine design carries deep cultural character, blending Asian sensibilities with French colonial influences. When applied to penthouse interior design, this style must be carefully refined to suit contemporary lifestyles and avoid an overly nostalgic feel.

Thiết kế nội thất penthouse indochine

RED interprets Indochine through a modern lens, preserving its distinctive materials and spirit while simplifying patterns and forms, resulting in spaces that feel both culturally rich and effortlessly livable.

Design guidelines:

  • Use traditional motifs sparingly and intentionally.
  • Favor natural materials such as wood, rattan, and stone.
  • Warm, muted tones paired with soft golden lighting.
  • Simple furniture forms that allow for easy integration.

9. Japandi Style – Calm, Balanced, and Deeply Restorative

Japandi design blends Japanese minimalism with Scandinavian warmth, creating serene, balanced environments ideal for resort-inspired penthouse living. This style emphasizes stillness, harmony, and emotional clarity.

Design guidelines:

  • Low-profile furniture with simple, grounded forms.
  • Warm, neutral color palettes with subtle depth.
  • Open, breathable layouts with minimal decoration.
  • Prioritize sensory comfort over visual complexity.

Key Considerations for Successful Penthouse Interior Design

Penthouse interior design is a multidimensional challenge, balancing aesthetics, functionality, technical requirements, and the emotional quality of living. With expansive floor areas, high ceilings, and significant investment levels, even a single poorly considered decision can result in wasted space or an incomplete living experience.

Below are the core principles RED prioritizes in every penthouse project.

1. Thoughtful Functional Zoning – The Foundation of Daily Comfort

In large, multifunctional spaces, clear and logical zoning allows a penthouse to operate smoothly and comfortably on a daily basis.

Effective penthouse interior design clearly distinguishes shared living areas from private zones, while maintaining a cohesive spatial flow throughout the home.

Key guidelines and practical tips:

  • Position the living room, kitchen, and dining area in spaces with the best natural light and views.
  • Locate private areas such as bedrooms away from guest and entertainment zones.
  • Avoid over-dividing the space with solid walls, which can fragment the layout.
  • Use soft zoning methods such as rugs, lighting layers, and ceiling height variations.

Example: A living room and kitchen remain visually connected, yet subtly separated through a kitchen island and dedicated pendant lighting.

2. Define the Design Style from the Start

The chosen design style serves as the guiding framework for both design and construction. Changing direction mid-project often leads to increased costs and visual inconsistency.

In penthouse interior design, style selection should be driven by real-life habits and long-term comfort, not trends alone.

Key guidelines and practical tips:

  • Assess daily routines and aesthetic preferences of all household members.
  • Consider the long-term relevance of the style, will it age well?
  • Avoid mixing too many styles within a single space.
  • Review real-world case studies before making a final decision.

Example: Homeowners who prefer simplicity and host infrequently may find Minimalism or Japandi more suitable than a formal Luxury style.

3. Establish a Clear Budget with Built-In Contingency

Penthouse projects typically involve substantial investment, making financial planning essential for cost control and peace of mind.

Key guidelines and practical tips:

  • Allocate a higher portion of the budget to the living room and master bedroom.
  • Separate costs for design, construction, and loose furniture.
  • Set aside 10–15% of the total budget for technical contingencies.
  • Avoid cutting costs on foundational elements that affect long-term performance.

Example: Invest in quality flooring and built-in cabinetry, while keeping decorative elements more restrained.

4. Maximize Natural Light and Panoramic Views

Light and views are two of a penthouse’s greatest privileges. Successful penthouse interior design fully leverages these elements to enhance both everyday comfort and visual appeal.

Key guidelines and practical tips:

  • Minimize obstructions in front of large glazing systems.
  • Use double-layer curtains to allow flexible light control.
  • Place shared living areas closest to windows and balconies.
  • Choose interior colors and finishes that reflect and amplify natural light.

Example: Arrange the living room sofa to face the city skyline, avoiding tall cabinetry that blocks the view.

5. Integrating Technical Systems Seamlessly with Interior Design

Penthouses often involve complex technical systems such as centralized air conditioning, smart lighting, and full smart-home integration. When these systems are not planned from the outset, they can easily disrupt the overall aesthetic. For this reason, penthouse interior design must be developed hand in hand with technical planning.

Key guidelines and practical tips:

  • Ensure close coordination between architecture, interior design, and MEP systems.
  • Conceal technical equipment within ceilings, cabinetry, or wall panels.
  • Plan the locations of outlets and switches from the earliest design stage.
  • Prioritize systems that are easy to maintain over time.

Example: Concealed ceiling-mounted air conditioning paired with linear air slots creates a cleaner, more refined look than wall-mounted units.

6. Choosing Materials That Match the Scale of the Space

Large-scale penthouse interiors demand materials that feel proportionate and cohesive. Using small-format finishes or low-quality materials can significantly diminish the perceived value of the space. 

In penthouse interior design, materials must be visually impressive, durable, and practical to maintain.

Key guidelines and practical tips:

  • Favor large-format stone, wood veneer, or solid natural wood.
  • Avoid excessive grout lines that create visual clutter.
  • Combine materials strategically to add depth and dimension.
  • Consider resistance to moisture, wear, and scratching.

Example: Large-format marble wall cladding in the bathroom enhances both elegance and ease of maintenance.

7. Managing Spatial Emotion – Avoiding Visual Overload

With expansive floor areas, homeowners may feel tempted to fill every corner with furniture or decorative elements. However, excess often undermines sophistication. Successful penthouse interior design requires restraint to create emotional balance and a sense of calm.

Key guidelines and practical tips:

  • Choose focal points instead of decorating every surface.
  • Use negative space intentionally.
  • Limit the number of colors and material finishes.
  • Prioritize how the space feels in daily use over visual spectacle.

Example: A single large-scale artwork can be far more impactful than multiple smaller pieces competing for attention.

8. Ensuring Legal Compliance and Construction Quality

Penthouse projects often involve specialized features such as layout modifications, light structural adjustments, rooftop gardens, or private pools. As a result, legal compliance and construction quality control are critical components of penthouse interior design.

Key guidelines and practical tips:

  • Review building management regulations carefully.
  • Obtain necessary approvals before executing special modifications.
  • Closely supervise each construction phase.
  • Work with teams that have proven penthouse project experience.

Example: Rooftop swimming pools require precise load calculations and advanced waterproofing solutions.

RED – Your Trusted Partner in Penthouse Interior Design

RED Interior Design & Architecture is a Korean-owned architecture and interior design firm operating in Vietnam. We don’t simply create beautiful spaces, we craft living experiences that are human-centered, enduring, and deeply inspiring.

If you are looking for a penthouse interior design partner who offers:

  • Strong professional expertise
  • Deep, hands-on experience
  • A people-first design philosophy

Contact RED’s design experts today to begin your penthouse journey.