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Proper House is a Pennsylvania interior designer creating beautiful, functional homes for the way families truly live. Rooted in thoughtful design, quality materials and intentional use of color, each project is tailored to support daily life with ease. Proudly serving the Main Line and greater Philadelphia area.
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After that defining moment, I had clarity about what I wanted to do—but not how to make it happen. I still had to finish my marketing degree (which I did that winter), figure out whether I needed certification, and land some sort of design job.
I enrolled in a master’s program to gain credentials, but most entry-level jobs paid far too little, and I couldn’t afford to take a massive pay cut with a mortgage and marriage already on my plate. I was impatient. I wanted to design. I didn’t want to wait.
So I started a small business. Nothing major—just paint color consultations and tiny projects to get my feet wet. But I needed a name. And that part tortured me. I refused to use “Hilary Hays Greenhalgh Interiors.” Too long, too basic. Names mattered to me. They needed meaning. I searched everywhere—movies, books, words I liked—but nothing fit.
One night, venting to James, I said, “I should just call myself Little Green House since I work out of our little green house, and be done with it.” He liked it. I thought it worked. And just like that, Little Green House Interiors was born.

I put myself on Thumbtack under that name. The plan was simple: work small jobs while I finished school, then use the degree and experience to get a real design job. But that’s not what happened.
The jobs got bigger. Within three years, I was working on entire home renovations.
All those small choices, all that searching, brought me here—to something bigger than I ever imagined. Today, I have over 5,000 Instagram followers, partnerships with major brands, a full portfolio, and multiple full-home projects under my belt.
And now, it’s time. Time to leave Little Green House behind and step into something even bigger and better.

You got this Hilary. Hard work has great rewards especially when you love what you do.