One of the most common questions from clients planning a construction or renovation project in Bangladesh is: do I need an interior designer, an architect, or both? The answer depends on the scope and nature of the project — but understanding the difference between the two disciplines, and how they complement each other, helps clients make better decisions and avoid the coordination problems that arise when the two roles are separated. This guide explains clearly what each profession does, when each is needed, and how the most effective projects bring both together.
What an Architect Does
An architect’s primary domain is the building — its structural form, its relationship to the site, its compliance with building codes and regulations, and the technical systems (structure, MEP services) that make it function. Architects produce the drawings required for building permits, manage structural engineering coordination, specify the building envelope (walls, roof, windows, foundations), and take professional responsibility for the safety of the built structure.
In Bangladesh, architects are registered with the Institute of Architects Bangladesh (IAB) and are legally required for projects involving new construction, structural modification, and the procurement of building permits. Any project that involves removing load-bearing walls, adding floors, or constructing a new building requires a licensed architect.
What an Interior Designer Does
An interior designer’s primary domain is the space within the building — how it is organised, how it looks, how it feels, and how well it serves the people who use it. Interior designers produce space plans and layouts, select and specify materials and finishes, design custom furniture and joinery, specify lighting systems, manage FF&E procurement, and coordinate the contractors who bring these elements to life. They are responsible for the aesthetic and functional quality of the interior environment.
Interior designers do not take structural responsibility — they work within the structural envelope that the architect has established. They are not typically required for building permits, but their work has an enormous impact on the quality of the finished environment and the experience of everyone who uses it.
When Do You Need an Architect?
- New building construction of any type
- Structural modifications — removing or adding walls, changing floor levels, adding a mezzanine
- Building permit applications
- Rooftop additions or extensions
- Any project where the structural integrity of the building is affected
When Do You Need an Interior Designer?
- Apartment or house fit-outs and renovations (non-structural)
- Office fit-outs, retail fit-outs, restaurant and hospitality interiors
- Any project where the primary goal is to improve the quality, function, or aesthetics of an existing space
- Projects involving significant furniture, joinery, lighting, or material specification
- Any project where you want a coherent, designed result rather than a series of independent contractor decisions
When Do You Need Both?
Many significant projects require both disciplines working together: a major apartment renovation that involves removing walls (architect for structural) and redesigning the entire interior (interior designer for space and aesthetics); a new restaurant build-out where the building shell requires architectural input and the interior requires specialised hospitality design; a hotel project where the building must be designed to planning requirements (architect) and the guest experience must be designed to hospitality standards (interior designer).
When both disciplines are required, the quality of coordination between them is critical. Architects and interior designers who have not worked together before can produce conflicting drawings, incompatible specifications, and coordination problems that cost time and money to resolve. The most efficient solution is an integrated practice — one that provides both services under one roof, with one team, and one point of accountability.
House De Arch’s Integrated Approach
House De Arch combines architectural and interior design capability within a single integrated practice. For projects requiring both disciplines, our clients appoint one team for the complete scope — eliminating the coordination risk, the contractual gap between two separately appointed consultants, and the accountability vacuum that arises when problems cannot be attributed to a single responsible party.
Our EPC (Engineering, Procurement, Construction) delivery model extends this integration into the construction phase — a single contract, a single team, and a single point of accountability from concept through to handover. For clients who value certainty, quality, and the absence of coordination problems, this integrated model is significantly preferable to the traditional separated approach.
Frequently Asked Questions
Can an interior designer remove walls in Bangladesh?
An interior designer can design the removal of walls and manage the overall project, but the structural assessment of whether a wall is load-bearing, and the specification of any structural works required, must be performed by a licensed structural engineer and documented by a registered architect. House De Arch coordinates this within our integrated team.
Is an architect required for an apartment renovation in Bangladesh?
For a non-structural renovation — new finishes, new cabinetry, new flooring, new lighting — an architect is not legally required in Bangladesh. For any structural modification, an architect is required for the permit application. Most apartment renovations in Dhaka are non-structural and proceed with an interior designer and contractor only.
Who is responsible if something goes wrong — the architect or the interior designer?
Responsibility depends on the scope: structural failures are the architect’s and structural engineer’s domain; fit-out quality failures are the interior designer’s and contractor’s domain. When the two are separate appointments with separate contracts, disputes about responsibility between them are common and costly. When both are provided by a single integrated firm under one contract, accountability is unambiguous.
Related: How to Choose an Interior Designer | EPC Integrated Delivery | Integrated Design and Construction | The Office Design Process | Construction Company in Dhaka
Not sure who you need? Contact House De Arch — we provide the full scope under one roof.