Interior Designer vs Architect: Which Should You Become to Design Homes?
For the past fifty years or so, we've treated the inside of a home and the outside of a home like two completely separate jobs. That, right there, is the whole problem, and once you see it, you'll notice it in almost every house that leaves you cold. A home is one thing, so it should never be designed like it's two. Let me untangle who actually does what, and then show you the better path that almost no one is teaching, the one where you don't have to pick a side at all.
Short answer: An architect designs the structure and shell of a building and has to be licensed almost everywhere. An interior designer shapes the interior spaces and finishes, and depending on the state, the title "interior designer" is often regulated too. The deeper issue is that splitting a home into two separate jobs is exactly why so many houses feel disjointed. In residential design, the inside and the outside should be designed as one whole, by someone who understands both.
What an architect actually does
An architect designs the structure, the shell, the bones. How the building stands up, how it meets code, how it sits on the site, the rooflines, the spans, and the whole technical and contractual side of getting a building permitted and built. Architects are licensed, which takes years of school, an internship, and a punishing battery of exams, and they can work across many building types, not just homes.
Here's something most people don't realize, though: architects are trained as designers. They should be fully capable of designing the whole thing, interiors included. The idea that an architect doesn't touch interior design is honestly a little strange to me, because designing the inside and the outside used to be one single job.
But there's a flip side, and it's just as real. Plenty of architects, especially those trained on big commercial or civic work, get so focused on the shell and the systems that the interior becomes an afterthought. They can deliver a technically flawless building that feels cold to actually live in, because no one was thinking about how it feels to cook dinner in that kitchen, or curl up in that corner on a rainy afternoon, or gather everyone for the holidays. The bones can be perfect and the home can still feel like nowhere. Strong on structure, thin on soul, is a very common architect blind spot, and it's the exact mirror image of the interior designer who knows finishes but not framing.
What an interior designer actually does
An interior designer shapes the interior, how the spaces feel and function, the materials, the finishes, the flow from one room to the next. They plan how a space actually gets used, where the light lands, how furniture sits, how you move through a morning in that kitchen. A great interior designer makes a home feel considered and alive, and that is a real gift, one that a lot of architects genuinely don't have.
But here's what many of them miss, and it costs more than people realize. Plenty of interior designers only understand the inside. They don't always understand how a roofline works, where the bearing walls are, how the mechanical systems move through a house, or how far natural light actually reaches into a room. That gap means they often can't confidently move a wall, design an addition, or reshape a poorly lit room at the source, so they end up decorating around problems the architecture created instead of solving them. It also quietly caps them, on how high they can consult, how much they can charge, and how whole the finished home can ever really feel. And the licensing picture here is more complicated than most people assume. In a lot of states the title "interior designer" is actually protected, meaning you have to pass a certification like the NCIDQ to legally call yourself one, and a handful of places, Florida, Louisiana, Nevada, and Washington DC, require a license to do the work at all. Architects, by contrast, have to be licensed almost everywhere. So it's less that interior designers are unlicensed and more that the rules vary a lot by where you are. I break the whole thing down in do you need a license to design houses.
The key differences, side by side
So here's the quick version. An architect is licensed, works across building types, and owns the structure and the technical side. An interior designer focuses on the interior spaces and finishes and owns how the inside feels, with title and certification rules that vary by state. One is trained on the bones, the other on the finishes. On a typical project, they're two different people, hired separately, working in two different lanes that don't always meet. If you want the fuller map that adds the decorator into the mix, it's in residential designer vs interior designer vs decorator.
Why splitting the home quietly breaks it
That split is precisely why so many homes come out feeling like the inside and the outside belong to two different houses. When the architecture is designed by one person who never thinks about the interiors, and the interiors are handled by someone who never thinks about the architecture, nothing ends up speaking the same language. You get an entry that fights the foyer, windows placed for the sake of the elevation with no thought to the light or the view from inside, rooms that feel wrong in a way no one can quite name. This is how you end up with Anywhere America, homes with no soul and no cohesion. I get into exactly why that happens in why most new homes feel soulless.
The case for designing the whole home as one
A home is one thing, so it should be designed as one thing. This is the entire idea behind residential design done well. When one person, or one tightly aligned vision, understands the architecture, the construction, and the interiors all at once, you design them together and never sacrifice one to force the other. If we want a certain kind of entry architecturally, we already know we want the interior to carry that same feeling right through the door. The window gets placed for both the elevation and the light it throws across the room inside. Nothing fights itself.
That doesn't mean one person has to do every single piece forever. I take interiors as far as the hard finishes, anything nailed, glued, or screwed on, and I bring in a decorator for the soft finishes and furniture. But the whole-home understanding has to be there, because that's what makes the final result feel cohesive. We need architects who understand interiors, and interior designers who understand architecture. We need the built environment to speak one language again.
Where a residential designer fits, and where you might
This is exactly the gap a residential designer, or home designer, fills. Someone who designs the home as a complete whole, inside and out, instead of as fragments handed between specialists who never talk to each other. If you're an interior designer who wants to finally understand the bones, or someone drawn to the architecture but focused on homes rather than hospitals and high-rises, this is the role that ties all of it together. And here's the part I love: you don't need a license or a degree to become one. Start with what a residential designer actually is, then walk the full path in how to become a residential designer.
If you're ready to design a home from the first sketch all the way to a full set of plans, with me reviewing your work along the way, you can apply to the Home Design Academy, or start with my free course to see how I teach first.
Frequently asked questions
What's the difference between an interior designer and an architect? An architect is licensed and designs the structure and shell of a building, the bones, the code, how it stands up. An interior designer shapes the interior spaces and finishes, how it feels inside, and depending on the state may need a certification like the NCIDQ to legally use the title. Architects are trained as designers and can do interiors too, but in practice the two roles are almost always split between different people.
Do you hire an interior designer or an architect for a home? It depends on the work. Structural changes and the overall building need architectural knowledge, while the interiors and finishes fall to an interior designer. The best result, though, comes when the home is designed as one whole, which is exactly what a residential designer does.
Can one person do both interior design and architecture? Yes, and ideally the two are designed together from the start. A residential designer understands construction, architecture, and interiors as one connected thing, which is what keeps a home cohesive inside and out.
Is an architect better than an interior designer? Neither is better, they're different jobs with different training. An architect owns the structure and is licensed to design many building types. An interior designer owns the feel of the interior. Problems come not from either role, but from designing a home as two separate jobs instead of one.
Which should I become if I want to design homes? If your heart is in homes specifically, a residential designer is often the most direct and flexible path, because it means understanding the whole home, inside and out, without needing a license or a long degree. You get the architectural understanding and the interior sensibility, focused entirely on the place people actually live.
Rafi Inez is a residential home designer based in Miami, FL. She runs her own design firm and founded the Home Design Academy, an intensive 16-week residential design program. She holds two architecture degrees and is completing her architecture licensure. Raised on Florida’s 30A among the new urbanist communities of Seaside and Alys Beach, she built an audience of 100,000+ by sharing real projects, and teaches designers to create homes with a genuine sense of place.
