Architect and Interior Designer: Do You Need Both?

When a project becomes large and complex, architecture and interior design rarely remain separate conversations. A change in the structural grid can affect the furniture layout. A window position influences daylight and glare. Ceiling heights have to accommodate lighting, air conditioning, sprinklers and acoustics. Even the position of a staircase can influence how people experience the space around it.

The client may see these as individual decisions, but the finished building is experienced as one environment.

That is why, for a significant project, the more useful question is not whether you need an architect and an interior designer. You usually need the expertise of both. The real question is whether those disciplines should work as two separate teams or as one coordinated design process.

For a small renovation, separate specialists can work perfectly well. But when the project involves substantial planning, structure, services, user experience and investment, there is a strong case for choosing a firm that can provide both architecture and interior design.

For example, our Green Metal Industries project in KEZAD, Abu Dhabi, brought architecture and interiors together across a 15,000 sq ft commercial office, with planning, daylight and material choices developed as one connected design.

The client may see these as individual decisions, but the finished building is experienced as one environment.

That is why, for a significant project, the more useful question is not whether you need an architect and an interior designer. You usually need the expertise of both. The real question is whether those disciplines should work as two separate teams or as one coordinated design process.

For a small renovation, separate specialists can work perfectly well. But when the project involves substantial planning, structure, services, user experience and investment, there is a strong case for choosing a firm that can provide both architecture and interior design.

Where Architecture and Interior Design Meet

Architecture looks at the building as a whole: the site, structure, planning, proportions, façade, circulation and relationship with its surroundings. Interior design moves closer to how people experience that building, considering space planning, materials, lighting, furniture, acoustics and functionality.

The distinction is important, but the decisions overlap constantly.

Consider an office column. From an architectural perspective, its location may be perfectly logical. From an interior perspective, that same column could affect a meeting room, workstation arrangement or sightline. The same applies to windows, ceilings, staircases and service zones.

This is why coordination is most valuable when it happens early. If an issue is discovered while the design is still being developed, there are usually several ways to solve it. Once drawings have been finalised, materials ordered or construction started, the same change can become considerably more complicated.

Research supports the importance of this early coordination. A study examining 339 design changes across seven construction projects found that redesign costs ranged from 2.1% to 21.5% of construction change costs, with an average of 8.5%. The study does not suggest that every design change is caused by poor coordination, but it does demonstrate that design decisions can carry measurable cost implications once a project is underway.

What This Looks Like in a Real Project

The relationship becomes easier to understand when you look at an actual space.

Take People Café, an F&B project by EXS Design. A café is not simply a room with tables, chairs and attractive finishes. The entrance, seating arrangement, customer movement, service areas, lighting, materials and overall atmosphere have to work together. The space needs to create the right experience for the customer while supporting the practical requirements of an operating café.

That means decisions cannot be made independently. The way people enter the space influences where they sit. Seating affects circulation. Circulation affects service movement. Lighting and materials influence the atmosphere, while the planning has to support the operational requirements behind the experience.

This is where architecture and interior design become less about two disciplines and more about one connected design problem.

The Larger the Project, the More Important Coordination Becomes

The need for integration becomes even clearer on projects with multiple functions and a high level of public interaction.

The Dubai World Trade Center Client Lounge, for example, required the environment to work as both a functional space and a representation of the organisation it serves. In projects like this, the architectural setting, spatial planning, material choices, lighting and user experience cannot be considered independently. A strong result depends on how these elements support one another.

This is also why simply having two capable design firms does not automatically guarantee a better outcome. Two excellent teams can collaborate successfully, but someone still needs to connect their decisions, resolve conflicts and maintain a consistent design direction.

An integrated firm does not eliminate disagreement either. Good designers should challenge one another. The difference is that those conversations can happen internally, around the same project objectives, rather than becoming negotiations between separate organisations.

Does One Firm Always Make More Sense?

Not necessarily.

There are many situations where appointing an architect and interior designer separately is entirely reasonable. A smaller project may have limited coordination requirements, or a client may already have a trusted architect and want to bring in a specialist interior studio.

The case for an integrated approach becomes stronger as the project becomes more complex. Hotels, large workplaces, healthcare facilities, retail environments, major F&B projects and high-end residences can involve hundreds of interconnected decisions. At that scale, architecture and interiors are not really two independent packages.

They are two parts of the same system.

When choosing a firm, therefore, it is worth asking more than whether it provides both services. Ask how those services actually work together. Are architecture and interior design involved from the beginning? Who coordinates the relationship between structure, MEP and interiors? Who owns the overall design direction? How are conflicts between disciplines resolved?

The answers tell you much more than simply seeing "Architecture" and "Interior Design" listed on a website.

One Vision From the Outside In

At EXS Design, architecture and interior design are part of the same practice. For large and meaningful projects, this allows both disciplines to develop alongside each other, with architectural decisions considered against interior requirements and interior decisions tested against the larger architectural idea.

The objective isn't to reduce the number of people involved in a project. It is to reduce the gaps between their decisions.

A building should not feel like an architectural project that was completed first and an interior added afterwards. The strongest spaces feel considered from the outside in, because the structure, planning, materials, lighting and experience have all been developed as parts of one larger idea.

For a significant project, that may be the real advantage of choosing a firm that provides both architecture and interior design.

Not simply having both services.

Having both disciplines working towards the same result.