Taking on a new home build or major renovation is a big freaking deal.


After all, it may be one of the largest investments you’ll ever make. (Eek!) That’s why when you’re relying on others to create your most personal, beloved space, you need an interior design team that gets it (and gets you).

At LL Design Co, we care about our clients like we would our closest friends. We’re all about transparency, trust, and having a healthy sense of humor. A major home design project often lasts at least 9 months, so finding a partner you can cheers to the wins with and comfortably talk through challenges over a glass of wine is a must in our book.

About LL Design Co


We’re not decorators, we’re designers with a wealth of industry expertise and deep construction knowledge. From the initial scope call to the final furniture install, we guide you through our process to ensure you’re comfortable and informed every step of the way. 

Our Values


Teamwork makes the dream (home) work

The importance of a tight-knit relationship between builders and designers can’t be overstated, so we make it a priority to collaborate closely with all your project’s players.

Good Vibes Only

We’re down-to-earth and unpretentious, because design should be chic, not snooty.

Honesty is the best policy

We’re always transparent and communicative—it’s the best way to build trust and achieve success.

Keep the Is dotted and Ts crossed

Our airtight process and deliverables paired with on-site collaboration ensures the whole team’s on the same page.

How it all Began


Sisters Lisa Rossman and Lena Campbell have always shared similar passions and been each other's biggest cheerleaders, despite their age gap. Not until after high school did Lisa realize she wasn’t the first in the family to pursue a career in interior design. It turns out Lena had studied design, too, and worked in the industry before starting a family. So in 2017 when Lisa decided to leave the corporate world and launch her own boutique firm, she leaned on her sister for advice, and ultimately, asked Lena to be her business partner. The rest is history.

As for the company name? It’s a little tribute to their dad, who had a particular affinity for the look and sound of double Ls. (Before they both were born, he’d insisted they have first and middle names starting with the letter), and so, LL Design Co. was born.

California

Meet Lisa


After 10 years of sharpening my design skills at major firms in Downtown Chicago and Southern California, and immersing myself in every corner of the industry, I bet on myself, took a terrifying leap to start my own boutique firm from scratch, and haven’t looked back. From helping dozens of amazing families design their forever homes, to building close-knit relationships with the best builders, architects and creators in town, I’m constantly inspired and motivated by the community to continue to challenge myself and dream big. When I’m not with clients or on site visits, you can catch me at the beach with my goldendoodle, Ellie, capturing beautiful moments in black and white with my DSLR, or planning the next trip to my ultimate happy place — Italy.

xx Lisa

Meet The CA Team


tanya beliakoff

Junior Interior Designer

jeanine rothenhaus

Junior Interior Designer

Arizona

Meet Lena


Lena, a seasoned design professional with nearly 20+ years of experience in Arizona, excels in overseeing all aspects of a project, from material selection to execution, Lena consistently delivers stunning transformations that enhance both aesthetics and functionality, irregardless of the client’s budget. With respect for the Valley’s rich architectural history, Lena strives to approach each project with an attention to exceptional craftsmanship, while creating a home that works for the modern times.

Ready to connect?


If you’re ready to take the next step towards your dream home, fill out our inquiry form to tell us about your project. We’re excited to hear from you and will get back to you soon!