Beautiful interiors designed for your life and your true style

Moving into a new home or updating your current one...

You know what you want, but turning your ideas into an executable plan (that won’t upend your life!) can be challenging. Especially when there are multiple opinions involved. Having an experienced designer to get you to the finish line is key.

Hi! I'm Shannon Mastalir,

TrueStyle & Design’s Interior Designer. My approach to home design starts with getting to know you, your space, and your lifestyle, so I can create a vision that excites you. Then I’ll take you through my full design process to create a space for you that looks great and feels right.

Shannon Mastalir, Interior Designer - headshot home page

Interior Design Services

TrueStyle & Design - Living Room Redecoration


We’ll refresh your room with paint, furniture, window treatments, rugs, lighting and your personal style.

TrueStyle & Design - Foyer Renovation


We’ll update everything – floors, paint, surfaces, hardware, and lighting – but keep the same purpose.

TrueStyle & Design - Kitchen Remodel


We’ll improve the functionality of your space by taking down walls, moving doors, and improving the flow.

We had just moved into our new house and life was hectic. We wanted it to be livable and feel like home ASAP. Thank goodness for Shannon! She helped us figure out what would work best for our family, and incorporated the things we love best with some new pieces. Floors were finished, walls were painted, and everything was set up beautifully for us to feel perfectly comfortable in no time. Thank you Shannon!!

— Amelia (Mercer Island, WA)

Say "hello" and tell me about your project.

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