Meet the Founder

Karina Michael Harrington

Hi, I’m Karina — Founder and Principal Designer of Portfolio Interiors. My background spans interior design, boutique real estate marketing, and public health, which means I’m equally obsessed with beautiful spaces, human behavior, and the psychology behind why some rooms make us instantly exhale while others leave us unsettled. I founded my studio in Charleston, SC, after years of studying how buyers and renters interact with properties — where they linger, what draws their attention, and what drives them to commit.

I’m driven by the why of design — how wellness, emotion, and environment shape the way we live — and I focus on creating spaces that deliver measurable results.

Because when you design with psychology and comfort at the center, everything changes.

Welcome in. Get cozy. You’re in the right place.

Make it stand out.

Our strategy is focused on one outcome: increasing your property’s performance. We use psychology-driven design to improve flow, comfort, and emotional ease — the factors that influence booking decisions, perceived value, and pricing power in a competitive market.

By pairing intentional layouts with well-appointed furnishings, we create refined, durable, market-ready interiors that attract quality renters, strengthen reviews, and support higher long-term ROI across each booking and lease cycle.

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