Architect vs. Interior Designer vs. Design-Build: Who Do You Actually Need?

If you’re planning a home renovation, addition, or remodel, you’ve probably asked yourself:

Do I need an architect? An interior designer? Or one of those design-build firms that do everything?

It’s one of the most common and most confusing questions homeowners face at the beginning of a residential project. The answer isn’t one-size-fits-all, but understanding the difference between these roles can save you time, money, and major frustration.

At LHS Residential Design, we regularly help homeowners navigate this exact decision. Here’s a clear breakdown of each option and how to determine what’s right for your home.

What Does an Architect Actually Do?

An architect focuses on the structure, layout, and systems of your home. This includes:

• Space planning and flow

• Structural modifications

• Code compliance and zoning

• Permitting and approvals

• Long-term functionality

• Building performance and livability

Architects don’t just design rooms, they design how a house works.

You typically need an architect when:

• You’re changing the structure of the home

• Adding square footage

• Reconfiguring layouts

• Dealing with zoning or permitting

• Working with older or complex properties

Bottom line: Architects shape the bones of your home.

What Does an Interior Designer Do?

An interior designer focuses on how spaces feel, function, and live day-to-day. This includes:

• Material and finish selections

• Lighting design

• Cabinetry and millwork

• Furniture layouts

• Color palettes and textures

• Storage solutions

Interior designers translate architecture into livable environments.

You typically need an interior designer when:

• You’re renovating without major structural changes

• You want cohesive design throughout the home

• You’re struggling to translate ideas into reality

• You want functional, beautiful interiors, not just new finishes

Bottom line: Interior designers shape the experience of the home.

What Is Design-Build?

Design-build firms combine design and construction under one company. Instead of hiring a designer and contractor separately, you work with a single entity that handles both.

This model can offer:

• Faster timelines

• Simplified communication

• One contract instead of multiple

However, it also means:

• Design decisions may be influenced by construction convenience

• Less design independence

• Fewer checks and balances between design and build

Bottom line: Design-build prioritizes efficiency and integration, but not always design depth.

So… Which One Do You Actually Need?

Here’s the honest answer:Most successful residential projects use both architecture and interior design, whether through one integrated firm or a coordinated team.

You likely need:

An Architect if:

✔ You’re altering structure

✔ You’re adding space

✔ You’re navigating zoning or permits

✔ Your home layout needs rethinking

An Interior Designer if:

✔ You want cohesive interiors

✔ You care about flow, function, and livability

✔ You want more than surface-level upgrades

Design-Build if:

✔ Your project is straightforward

✔ Speed and simplicity are top priorities

✔ You prefer a single point of responsibility

The LHS Residential Design Approach

At LHS Residential Design, architecture and interior design work together.

That means:

• Structural decisions support daily living

• Interior design aligns with long-term function

• Aesthetic choices don’t compromise performance

• Projects are guided by clarity, not confusion

We believe the best residential projects happen when design is intentional, informed, and aligned with how people actually live.

Planning a Renovation? Start With the Right Conversation

Before choosing a contractor, pulling permits, or signing contracts, the most valuable first step is understanding your needs, goals, and constraints.

A consultation with an architect can help you determine:

• What’s feasible

• What’s realistic

• What’s necessary

• What’s worth investing in

👉 If you’re considering a residential renovation, addition, or redesign, LHS Residential Design offers initial consultations to help homeowners clarify scope, budget, and next steps before costly decisions are made.