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Low Cost Duplex House Design in Bangladesh

Modern and luxurious Duplex and Triplex Villa House have become demanding in Bangladesh. SHELLMARK is the Best Low-Cost Duplex House Design Firm in Bangladesh. A Duplex Building generally consists of only two floors having exclusive Architectural beauty. These types of buildings are considered as single-family dwellings with aristocratic symbols. When these types of buildings are extended to three floors are named Triplex Villa House or Bungalow House. Most of the wealthiest people in Bangladesh build their Duplex or Triplex houses for their recreational living or short time staying. Sometimes these types of buildings may call Vacation House or Farm House. Depending on interior and exterior architectural beauty and finishing materials used, these Duplex or Triplex houses may be low cost or high construction cost.

  • Duplex House Design
  • Farm House Design
  • Triplex Villa Design
  • Leisure Cottage Design
  • Vacation House Design
  • Bungalow House Design

Duplex House Design in Bangladesh includes the Following Features:

1. Grand Entry:

Generally, a Duplex and a Triplex House comprise a Grand Entry. This is considered the main entrance of the house. The main theme of these entries is mainly Architectural beauty, and represents the primary taste of the inner house. It must be very spacious, restricted to public access and followed by a guard post. The Grand Entry must be connected with a boundary wall on both sides. This may connect with an approach road or a highway.

2. Landscaping:

Every Duplex or Triplex Villa house must have landscaping in front of the building and surroundings. The vehicles and pedestal movements are strictly predefined in landscape design. It may contain a Fountain, open yard seating areas, swimming pool, pond, tree plantations, vegetable cultivating area, flower garden, etc. A Landscape Architectural design enhances the ultimate luxury of a Duplex, Triplex, or Vacation House.

3. Guest Zone:

A Duplex or Triplex house may have different zones according to their usage. The guest zone may comprise a large and specious drawing area situated on the ground floor. This area is generally very adjacent to the house entrance. Common toilets and guest bedrooms are also considered guest zone. Guest gathering and their movement keep restricted to this area while preparing architectural floor plans. The privacy of family members is also treated as an important consideration in architectural design.

4. Service Zone:

According to the zoning concept of a Duplex House, the service zone is considered a semi-private zone of the entire building, located on the ground floor. A large dining room and kitchen are the main parts of the service zone. The movement of the female members in the service zone and interactions of guests in the service zone is considered a critical part of service zone design. The servant bedroom and toilet are placed very near the service zone.

5. Family Living Area:

This is very private and restricted to guests, located on the 1st floor. The master beds, common beds, child beds, reading room, and prayer room are accommodated in this area and kept very secure from the ground floor. Sometimes a small drawing and kitchen room are placed in a suitable location in the family living zone to enhance the in-house refreshment facilities. There may have a small panty in this zone. This zone is considered the main living area of duplex dwellers.

6. Large Family Terrace:

A large family terrace is desirable in any modern Duplex or Triplex Villa House. For most of the building, the family terrace is placed very near the living area on the 1st floor. This place is kept common to use for all family members or private to one or two-bedrooms. It is always treated as the main refreshment place for building dwellers. Terrace gardening and keeping planter boxes around may enhance the beauty of a family terrace

7. Vertical Fins & Pergola:

Vertical Fins and Pergolas are the ornamental components of a Duplex House. We provide those to add some extra look to exterior views. It’s generally located at the front and side elevations of Duplex House. The height of the vertical fins is more than the duplex house. It starts from the existing ground level and extends beyond the roof. The Pergolas are placed over the open terrace and rooftop. Fair-faced casting and rustic tiles are used here to give them different look.

8. Elegant Internal Stair:

Two floors of a duplex House Generally connected with an Elegant Internal Stair. Most importantly it connects the Drawing Room to the Private Living Zone. The stair can be built with Elegant Architectural Views. It may be Spiral, Circular, Elliptic, Parabolic, or Oval Shape. It can be made of RCC or Prefabricated Steel Structures. The Rise and Trade of such stairs may be made with Wood or Tempered Glass.

9. Rooftop Swimming Pool:

Modern Duplex or Triplex Villa always demands a Rooftop Swimming Pool for family use. The swimming pool may be amoeboid or any other architectural shape and size. The swimming pool comprises a change room very adjacent to it. There must have a sitting area on the bank of the pool. Sometimes a small toilet is placed adjacent to the swimming pool. The pool may be open to the sky or any transparent sheet over it to feel the sky lite.

10. Water Fountains:

Water Fountains add extra luxury to the Duplex House. There are two types of Water Fountains depending on their locations. Firstly, Indoor Water Fountain. Secondly, Outdoor Water Fountain. Indoor Water Fountains are placed near internal stairs, Dining Room, or Living Room. It can be wall mounted or vertical sprinkler type. If you want to hear a waterfall sound seating at your home, you can install it at any suitable place.

11. Fish Ponds:

The fish pond is an ornamental arrangement in a Duplex House. Generally, we place these types of Ponds outside of the house. Especially at the main entry gate. Different colorful foreign fishes are grown here naturally. Water circulation is maintained with the help of a special water circulation pump. Though the maintenance cost of the such pond is high and tiresome. It becoming very popular among Duplex House owners due to its mind-blowing features.

12. Rooftop Gymnasium:

The rooftop gymnasium is a requisite facility for Luxurious Duplex Villa. Family members can perform their morning and evening workout at their own gym. A treadmill, lifting weights, dumbbells, and cycling can be placed at Rooftop Gymnasium. It is always very difficult to go for a workout in the morning or late at night. The demand for small workouts can be mitigated with this type of Gym at Rooftop. A small toilet and prayer room can be placed nearby the gym.

13. Common Facilities:

A duplex villa house required some service people and common facilities. Those common facilities can be placed on the ground floor of a duplex house. Car parking, guard post, guard living room followed by Toilet, caretaker room followed by Kitchen and Toilet, drivers waiting, etc. These common facilities and the service people increase the living comfort of duplex dwellers. A Substation and Generator room is also considered the common facilities of a Duplex House.


The above components are very important to consider in designing a Duplex House. If you have a plan to build your dream duplex, please hire the Best Duplex House Design firm in Bangladesh, which save your Cost and property. We at SHELLMARK LIMITED are providing Low Cost Duplex House designs in Bangladesh since 2012.

Low Cost Duplex House Design in Bangladesh Depends on the Followings:

The cost of a Duplex House in Bangladesh Depends on various design and construction considerations. Most of the clients ask for Low-Cost Duplex House designs in Bangladesh. Generally, the cost of a Duplex House varies from Tk. 2000/SFT to Tk. 5000/SFT depending on the use of construction materials. The factors of Duplex House cost are described below:

2. Total Floor Area:

The cost of Construction of a Duplex House may vary with its total floor area.  A Small duplex House can be built with a minimum of Tk.750 SFT Ground coverage. So, the total floor area may be Tk.1500 SFT. This type of Duplex House can be built with a Total Cost of about Tk.40 Lacs to Tk.60 Lacs.  But a Luxurious Duplex House with modern facilities required about 4000 SFT to 5000 SFT Ground Coverage. This type of Luxurious Duplex House Can be built with a total Cost of Tk.2 Crores to Tk.10 Crores. That’s why the cost depends on the total floor area.

3. Use of Finishing Materials:

The dominating Cost of a Duplex House in Bangladesh is the use of finishing materials. Use of standard finishing materials may cost Tk. 2000/SFT to Tk. 3000/SFT. But if you use Luxurious finishing materials, the cost may vary from Tk. 3000/SFT To Tk. 5000/SFT. We never suggest using costly materials, but elegant medium-budgeted materials as finishing materials. In this case, we always consult with Clients and understand their financial abilities. Most importantly, we suggest using available local materials.

4. Design Concept:

The cost of a duplex House in Bangladesh also depends on the design Concept. A Classical Low-Cost Duplex House can be built within Tk. 40 Lacs To Tk. 60 Lacs. But a Luxurious Modern Duplex House Cost about Tk. 2 Crores to Tk. 5 Cores. The design charge also varies depending on the conceptual plan. We generally charge Tk. 3 Lacs to Tk.8 Lac to design a complete Duplex House. Our Design includes Architectural, Structural, Electrical, Plumbing, and 3D Perspective views. We also include the Landscape Design if required.


We Have designed a number of Low-Cost Duplex houses in Bangladesh. To feel the ultimate Luxurious of your dream House. Hire the Best duplex house design firm in Bangladesh. SHELLMARK LIMITED is providing Luxurious and Modern Duplex House designs in Bangladesh for more than 10 years.

Considerations of Duplex House Design in Bangladesh.

1. Climate and Weather Considerations:

Bangladesh experiences a tropical monsoon climate, with heavy rainfall and high humidity. The design should consider effective rainwater drainage and protection against flooding. Consider passive cooling techniques to reduce the reliance on air conditioning.

2. Local Building Codes and Regulations:

Familiarize yourself with local building codes and regulations. Compliance with these codes is essential for safety and legal purposes.

3. Layout and Separation:

The duplex should be designed to provide separate, self-contained living spaces for each family. Each unit should have its own entrance, bedrooms, kitchen, and living areas.

4. Privacy and Noise Control:

To ensure privacy for both families, consider soundproofing measures in walls, floors, and ceilings. Adequate insulation can also help with temperature control and noise reduction.

5. Sustainable Design:

Given the climate and resource constraints, consider sustainable building practices. This might include rainwater harvesting, use of energy-efficient materials, and passive solar design.

6. Structural Integrity:

The structural design of the duplex should be able to withstand natural disasters like cyclones and flooding. Reinforced concrete construction might be necessary for added strength.

7. Aesthetics and Cultural Elements:

Incorporate architectural elements that reflect local culture and preferences. This could include traditional design motifs or Islamic design influences, depending on the location and the preferences of the residents.

8. Utilities and Infrastructure:

Ensure that both units have access to basic utilities like water, electricity, and sewage systems. Adequate provision for these services is crucial.

9. Storage Space:

Design storage space for each unit, taking into account the needs of the residents. Adequate storage can contribute to the comfort and functionality of the living spaces.

10. Safety and Security:

Consider safety features, such as secure entrances and lighting, to ensure the security of both families.

11. Garden or Outdoor Space:

If space allows, consider creating a shared or separate garden or outdoor area where both families can relax and enjoy the outdoors.

12. Affordability:

Depending on the budget and location, the duplex should be designed with cost-effective materials and construction methods in mind.


It’s essential to work with an architect or designer experienced in local conditions and regulations when planning a duplex house in Bangladesh. Customizing the design to the specific needs and preferences of the families who will live in the duplex is also crucial for a successful project.