Bellemonde Blog & News 

Penthouse vs. Duplex: What advantages do duplex-style apartments or houses offer compared to a penthouse, and vice versa?

September 9, 2025

The increase in income, a growing family, or the desire to live in a space that reflects your success are just a few of the reasons that might bring you to the decision between a duplex and a penthouse. And your choice won’t come down only to size or location, but also to how each type of home aligns with your lifestyle, needs, and aspirations.

A penthouse is all about impression and exclusivity. With breathtaking views, spacious terraces, and an open-space design, it’s perfect for a social and modern lifestyle. Always located on the top floor, a penthouse offers plenty of natural light and an atmosphere that exudes luxury.

On the other hand, a duplex offers functionality and privacy. Think of a clear separation between the living area and the sleeping area, connected by an elegant interior staircase. It’s the ideal solution for families or for those who prefer a well-defined, perfectly organized space.

At Bellemonde, you’ll find the best of both worlds. The duplexes in our luxury residential complex combine the elegance and brightness of a penthouse with the intimacy and functionality of a duplex. Moreover, they are located in low-rise buildings surrounded by nature, away from the urban hustle and bustle. Large windows, generous terraces, and open-space layouts complete this unique balance. Duplexes inspired by penthouses, set in a peaceful and sophisticated environment – that’s the Bellemonde promise.

In this article, you’ll discover how these homes provide clear answers to your essential questions. We’ll explore the advantages and trade-offs of each option and show you how Bellemonde transforms a duplex into a premium living experience.

The Bellemonde residential neighborhood under construction in the Pipera area, Ilfov

What exactly is a penthouse?

A penthouse is usually an apartment located on the top floor of a building, offering a spacious interior, large terraces, and spectacular panoramic views — features that set it apart from all other residences in the building. Penthouse apartments provide a higher level of privacy due to their top-floor location and are the ideal choice for those seeking luxury, premium design, and a distinctive atmosphere.

The configuration of a penthouse depends on the available space and the characteristics of the building it is part of, but it is defined by premium finishes and a modern, minimalist style. Penthouse apartments may be located on the top recessed floor of a building, and the layout can be designed on a single level for maximum flow between areas, or, more rarely, on two levels — like a duplex — connected by an elegant interior staircase.

Another defining feature of penthouses is the spacious terrace, which extends the interior space outward, allowing residents to enjoy the view and providing a versatile area for relaxation, urban gardens, or social gatherings.

In addition, modern penthouses can be adapted to meet various needs — either through an open-space design that encourages social interaction and natural light, or through more intimate layouts that clearly separate the living areas from the sleeping quarters.

Initially, the term “penthouse” referred to a “house” built on the roof of a building, set back to create a generous outdoor area surrounded by stunning views. Today, the definition has expanded significantly, and the term is often used to attract buyers or tenants. For example, some modern penthouses may even be located on the ground floor of a building, as long as they offer exclusive features, superior finishes, and elements that set them apart from the other residences in the building.

Today, a penthouse can include a range of luxurious features: oversized windows, captivating views, a spacious floor plan, private entrance, enhanced security, upgraded appliances, and expansive terraces.

Interiors with premium finishes at Bellemonde

What is a duplex?

A duplex can refer either to an apartment arranged over two interior levels or to a duplex house consisting of two independent living units. Both types of duplexes share the advantages of functional space separation, but each offers unique characteristics tailored to different lifestyles.

Every duplex is designed to provide a clear distinction between the living areas, intended for daily activities, and the sleeping areas, dedicated to rest. This separation creates a balance between functionality and privacy, making the duplex a housing option perfectly suited to a modern lifestyle.

The two-level design significantly influences how the space is used, allowing multiple activities to take place simultaneously without interference. For example, one family member can cook or work in the living area while another rests or studies upstairs, enjoying peace and privacy. This layout is ideal for families with children or couples who value flexibility in how they use their living space.

Typically, the lower level is dedicated to the living area and includes the living room, kitchen—often open to encourage social interaction—and sometimes an office or a play area for children. These spaces are designed to facilitate family interaction and everyday activities.

On the upper level, the sleeping area is completely separate, housing the bedrooms and main bathrooms. This layout contributes to a quieter environment for rest, protecting personal privacy even in the case of an active or noisy lifestyle on the lower floor.

In terms of functionality, duplexes offer more layout options compared to single-level apartments. The vertical organization makes the home feel more spacious, while the interior staircase becomes an architectural feature that adds a touch of elegance and dynamism.

Another notable advantage is the flexibility in how the space can be used. The living area can be adapted to include a modern home office, a children’s play area, or an extended social space, while the upper floor remains dedicated to rest and relaxation. This smart layout makes the duplex an ideal choice for those who want a well-organized home that meets all daily needs without compromise.

Did you know?

Bellemonde is a residential neighborhood under construction in the Pipera area, where you’ll find duplex apartments — ideal for families seeking the comfort of a spacious home combined with the modern amenities offered by a premium residential complex.

At Bellemonde, the duplexes represent an elegant blend of penthouse luxury and the functionality of a well-structured living space. Set in a relaxed environment, away from the urban hustle and bustle, these homes are designed to offer the best of both worlds. The duplex apartments, located in low-rise villa-style buildings, feature large windows that flood the interiors with natural light, generous terraces, and open-space areas that preserve the elegance of a penthouse while providing the intimacy and comfort specific to a duplex.

The duplex houses complete this unique offering, adding extra privacy and personal space, with private gardens and rooms designed to meet the needs of a modern family. The innovative design of the residential complex blends nature with contemporary architecture, creating homes that feel both exclusive and functional at the same time.

The duplex apartments consist of two units sharing a common wall that is not divided between the two homes, located in villa-style buildings with two floors. The ground floor includes the living area, featuring a spacious living room, while the upper floor houses the sleeping area with three bedrooms, complemented by a kitchen and three large bathrooms. Future residents can enjoy the minimalist design and premium finishes of the interiors, which extend outdoors through two terraces and a private garden for each duplex apartment.

Regardless of your choice — whether you opt for a duplex apartment or a duplex house — Bellemonde promises a premium lifestyle, with spacious interiors, luxurious finishes, and amenities designed to enrich your everyday life.

Here’s how the duplex apartments in Bellemonde will look

Bellemonde also offers duplex houses connected by a vertical wall, featuring a master bedroom and two secondary bedrooms. The innovative design includes ventilated facades, infrastructure for photovoltaic panels, and heat pump climate systems, ensuring maximum comfort for its residents.

The future duplex houses in Bellemonde

What should I choose between a penthouse and a duplex?

To choose between a duplex and a penthouse, it’s essential to evaluate your lifestyle, daily needs, and priorities.

Here are a few questions that can help you make your decision:

The residences in Bellemonde will include many amenities.

How does budget influence the choice between a penthouse and a duplex?

A penthouse is, without a doubt, the more expensive option, due to its generous space, luxurious finishes, and expansive terraces offering spectacular panoramic views. It is the perfect choice for those with a generous budget who desire an exclusive home and a refined lifestyle.

A duplex, on the other hand, is more financially accessible, though the cost varies depending on location and size. Even so, a duplex offers an excellent balance between cost and functionality, making it ideal for families with a moderate to high budget who are looking for more space and privacy.

Minimalist design and luxurious finishes at Bellemonde

What kind of lifestyle do you have?

A penthouse suits those who desire a luxurious and exclusive lifestyle, as it offers modern design and premium finishes in an impressive open-space layout. People with an active lifestyle who enjoy socializing will find themselves perfectly matched to this type of residence, as it can serve as an ideal setting for parties or quiet evenings spent with friends.

A duplex is suitable for families or couples who prefer an organized environment, with a clear separation between living and sleeping areas. It’s ideal for those who want to combine the comfort of a home — complete with access to green space — with the conveniences of urban living, offering more room and greater privacy.

The residences in Bellemonde will feature an open-space living area

What individual needs and preferences do you have?

If you’re looking for an exclusive space with large terraces, spectacular views, and luxurious features, the penthouse may be the ideal choice. It’s preferred by those who value privacy, premium comfort, and an active social lifestyle.

Duplex houses or apartments are suitable for families or individuals who need more living space, efficient home layout, and plenty of storage areas. They are preferred by those who appreciate the separation between living and sleeping spaces, while also offering the possibility of having a yard or a terrace.

The residences in Bellemonde will feature an open-space living area

Did you know?

Bellemonde is a residential neighborhood that will offer its future residents a greener lifestyle, closer to nature. They will have access to extensive green areas, which will cover 33% of the complex’s total surface, and will be able to enjoy well-maintained communal spaces that free them from the responsibility of gardening. Additionally, they will benefit from private gardens and rooftop terraces designed on the flat roofs typical of the homes within the complex.

In addition, the location of the neighborhood in the Pipera area—set back from Bucharest’s crowded city center—means reduced pollution thanks to its proximity to the Băneasa Forest. At Bellemonde, you can enjoy cleaner air, a peaceful lifestyle, and enhanced privacy, with only 164 homes spread across 4 hectares of land.

What type of outdoor space do you want?

If you’re looking for an elegant place that provides an impressive setting for social events or moments of relaxation, the terraces of a penthouse are an excellent option. They’re ideal for those who appreciate an urban, sophisticated lifestyle — though you should keep in mind the increased exposure to natural elements such as wind or intense sunlight.

On the other hand, if your dream is to enjoy a touch of nature at ground level, duplexes are the better choice. They offer extra functionality for families or for those who love gardening and direct interaction with nature. However, you should be prepared for the maintenance responsibilities that come with having a private garden.

Thus, the decision depends on what you value more: the impressive aesthetics and low maintenance of a penthouse, or the tangible connection with nature and versatility offered by a duplex. Comparing these advantages and trade-offs will help you identify the perfect home for your needs.

Did you know?

At Bellemonde, you have the opportunity to enjoy the best of both worlds. In addition to the private gardens offered by the duplexes, which allow for a direct connection with nature, the complex also includes rooftop terraces for duplex apartments inspired by penthouses. These terraces are perfect for moments of relaxation or elegant gatherings, providing a sophisticated space away from the hustle and bustle of the city.

Moreover, access to the Social Hub at Bellemonde adds a unique social dimension to everyday life. This shared space can become the perfect place to host events, meet up with friends, or even organize smaller gatherings — without having to worry about logistics or limited space. In this way, Bellemonde perfectly combines the sophistication of a penthouse with the functionality and closeness to nature offered by duplexes, providing you with a complete and adaptable lifestyle.

How important is the privacy of your living spaces to you?

Are you drawn to the idea of being completely separated from neighbors, as a penthouse offers — with exclusive access and a top-floor location — or do you prefer the practical functionality and well-defined spaces provided by a duplex?

A penthouse offers privacy through its placement on the top floor, often featuring private elevators and restricted access. However, in Romania, such ultra-exclusive solutions are less common. The open-space layouts typical of a penthouse are ideal for a modern, social lifestyle — perfect for those who prioritize elegant design and seamless connection between living and sleeping areas. Although the panoramic views are a major advantage, urban noise can still be a challenge, even at higher elevations.

On the other hand, a duplex offers a clear separation between the living and sleeping areas, thanks to its two-level design. At Bellemonde, this configuration provides the advantage of functional privacy, where activities in the living areas — such as cooking, entertaining, or working from home — don’t interfere with the tranquility of the bedrooms upstairs. Moreover, the duplex houses at Bellemonde share a common wall that is not physically attached — a rare solution in Romania — which ensures reduced noise and enhanced comfort.

What is the level of sound insulation in these types of apartments?

Sound insulation varies depending on the type of home and its location. Penthouses, being situated on the top floor, are naturally insulated from building noise but may be exposed to external sounds such as wind or air traffic. Duplexes, while potentially more affected by internal sounds (like stair noise), often use modern insulation materials that significantly reduce sound transmission between floors and neighboring units.

How does social life influence the choice between a penthouse and a duplex?

A penthouse is ideal for those who frequently host events, thanks to its generous terraces and spacious layouts — perfect for welcoming guests in a sophisticated setting.

On the other hand, duplexes — especially those with private gardens or terraces — are more suited to families or individuals who value interaction within a community environment. At Bellemonde, the integrated Social Hub fosters connections among residents, offering a modern space for hosting events and gatherings, thereby strengthening the sense of belonging to a community.

How energy-efficient is each one?

Both modern penthouses and duplexes are designed with a focus on energy efficiency. Penthouses may include advanced climate control technologies and large thermally insulated windows that maximize natural light, though they can increase cooling costs during the summer.

Suburban duplexes, on the other hand, often integrate efficient heating systems and optimal insulation, with some including infrastructure for solar panels. At Bellemonde, the duplexes feature ventilated facades and green solutions aimed at reducing energy consumption.

What are the costs associated with common spaces?

Penthouses often come with higher costs associated with premium amenities, such as private elevators, rooftop terraces, or maintenance of exclusive common areas. Duplexes, especially those in suburban settings, have lower costs for shared spaces but may include responsibilities for private gardens or communal green areas. At Bellemonde, residents benefit from a Social Hub for events and shared green spaces, maintaining a balance between costs and amenities.

How do resale value and market trends compare?

Penthouses maintain their value in luxury urban markets due to their exclusivity and consistent demand from premium buyers. However, market volatility can affect their appeal if urban migration trends shift.

Duplexes are increasingly appreciated, especially in suburban areas, due to their versatility, which attracts families and buyers interested in multifunctional homes. They offer opportunities for multi-generational living or partial rental, which increases long-term demand.

Bellemonde will be a peaceful and uncrowded neighborhood

Advantages and disadvantages of a penthouse vs. a duplex

Advantages of penthouses Advantages of duplexes
Privacy

Spectacular views, top-floor location, restricted access, or private elevator.

Clear separation between the living and sleeping areas, reducing interference between activities and rest.

Outdoor space

Spacious terraces, ideal for social events and relaxation, offering panoramic views.

Private gardens or ground-level terraces, perfect for families or outdoor activities.

Lifestyle

Urban luxury, ideal for socializing and events; quick access to city amenities.

Suitable for families or individuals who want a peaceful environment, close to nature.

Layout

Modern open-space design, maximum flexibility in layout.

Clear separation between the daytime areas (ground floor) and the nighttime areas (upper floor), promoting an organized lifestyle.

Energy efficiency

Large windows and modern climate control technologies.

They often include high-quality insulation and sustainable solutions (for example, solar panels).

Disadvantages of penthouses Disadvantages of duplexes
Privacy

Exposure to urban noise (traffic, wind) and the possibility of interference between buildings.

Possibility of internal noise between floors or from neighbors (depending on the design).

Outdoor space

Exposure to natural elements such as wind or intense sunlight.

They require regular maintenance for gardens or green spaces.

Lifestyle

It may lack a connection with nature; more suitable for couples or single individuals.

Greater distance from urban amenities when located in suburban areas.

Layout

It may lack a clear separation between daytime and nighttime areas.

The space may feel more compact due to the vertical design.

Energy efficiency

Higher cooling and heating costs due to exposure.

It may require more energy to maintain larger surfaces.

Did you know?

The Bellemonde residential complex combines the advantages of a gated community with the generous space and privacy of a suburban housing area. Here, you can enjoy peace and a higher level of safety thanks to the lower resident density, while still having the opportunity to socialize whenever you wish. The complex includes an area dedicated to relaxation and social interaction through a Social Hub that offers a comfortable and elegant space.

Bellemonde will include a Social Hub for its residents

Come and discover which home suits you best!

The type of home you choose should be an extension of your lifestyle, taking into account various aspects — such as whether you have a larger family or need space for just one or two people, your available budget, how socially active you are, and how often you need to travel to the city center or other areas of the city.

The Bellemonde neighborhood could be the perfect answer to your needs, offering houses and apartments in low-rise villa-style buildings in various configurations. Depending on your preferences, you can choose duplex apartments spread across two levels or houses with more extensive green spaces. Regardless of the option you select, all homes in Bellemonde come with luxurious finishes, green energy solutions, and access to numerous premium amenities.

Schedule a meeting and come see how Bellemonde can become home for you and your loved ones.

Start now by downloading the brochure to learn more about the Bellemonde residential complex and all the amenities you can enjoy if you choose to become part of this community — created for those who value quality and refined taste!