At Cedar House Collective, our passion lies in designing homes that are as enduring as they are elegant. Our firm is focused on transforming residential spaces into personalized sanctuaries, where thoughtful design supports functional living. We approach every project with care, seeking to balance beauty with usability and ensure each room enhances the lives of those who inhabit it. Our belief is that a well-designed space should reflect the people who call it home.
We, Julie and Erika, are proud to lead a practice that values open communication, strategic planning, and the kind of attention to detail that sets exceptional design apart. Our service offerings cover the full range of residential interior designfrom renovations and new constructions to comprehensive furnishing and styling. We oversee every aspect of the project, collaborating with your team of builders or architects when needed. Our mission is to bring your vision to life through a streamlined and supportive design process, resulting in a home that feels effortless, elegant, and enduring.
We, Julie and Erika, are proud to lead a practice that values open communication, strategic planning, and the kind of attention to detail that sets exceptional design apart. Our service offerings cover the full range of residential interior designfrom renovations and new constructions to comprehensive furnishing and styling. We oversee every aspect of the project, collaborating with your team of builders or architects when needed. Our mission is to bring your vision to life through a streamlined and supportive design process, resulting in a home that feels effortless, elegant, and enduring.
Highlights and features
- Timeless, sustainable, family-friendly home design
- Seamless collaboration from concept to completion
- Built on transparency and efficient communication
- Expertly crafted interiors with lasting durability
- Custom solutions for renovations and new builds
- Full-service furnishings and personalized styling
Payment methods
- Cash, Debit cards, Credit cards, Mobile payments
Services
Our renovation design service transforms homes through detailed planning, tailored materials, and custom furnishings. We coordinate with top professionals and manage every phase, including construction documents and site visits. Whether refreshing a kitchen or reimagining your entire home, we ensure cohesive and stylish results that serve your everyday life. 
At Cedar House, we specialize in new construction interior design by collaborating seamlessly with your architect and builder. Every detail, from layout to lighting, is selected to enhance your lifestyle and express your personal style. We manage the process from space planning through to final styling, delivering a unified and highly livable environment. People
Julie Sanfilippo
Partner & Technical Design Director
Julie Sanfilippo, Cedar House Design Collective co-founder, brings her industrial design expertise and eye for detail honed through roles at the Boston Aquarium and Hasbro. With education from Yale and RISD, she leads drafting, construction plans, project planning, and execution to ensure seamless results reflecting each clients vision.
Erika Twohig
Partner & Creative Design Director
Erika Twohigs entrepreneurial spirit and passion for interiors led her to co-found Cedar House Design Collective. With a business degree from Bryant University and experience managing large brand portfolios, Erika now leads the creative vision, material sourcing, furniture layouts, budgeting, and client relationships for Cedar Houses projects. Inspired by coastal New England, she crafts awe-inspiring interiors that resonate with each clients lifestyle.
Reviews (6)
Laura Russell
May 02, 2025
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Julie and Erika brought my dream bedroom, bathroom, and laundry room to life in my Westerly homeand somehow exceeded even my highest expectations. They translated my vision into a space that feels more "me" than I ever could have imagined, perfectly balancing style, comfort, and functionality. They truly captured what it means to make a house a home.
As a first-time renovator, I was especially thankful for how they managed the construction process. Even with the usual hiccups and a slight delay, they kept me informed and reassured every step of the way.
I am excited to work with them again in the future on my next project!
As a first-time renovator, I was especially thankful for how they managed the construction process. Even with the usual hiccups and a slight delay, they kept me informed and reassured every step of the way.
I am excited to work with them again in the future on my next project!
Jeanne Archibald
Nov 02, 2023
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Working with Cedar House Design Collective was truly a 5-star experience. Erika and Julie are not only very talented designers with a solid knowledge of the construction process, they are also dedicated to providing the highest level of customer service. They were incredibly responsive and creative in dealing with the inevitable surprises that arise with a remodeling. They also worked very smoothly with our contractor and subcontractors, making the process seamless from our perspective. We wouldnt do another remodeling without them.
Adrienne D'Arconte
Mar 15, 2023
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Frank P.
Oct 19, 2022
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Jennifer Nunes
Nov 26, 2019
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Kerry Evers
Oct 06, 2019
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I wasn't quiet sure what to expect before my initial consult. I was looking to redo my laundry room and get ideas of how to refresh my house in general. From the moment Erika and Julie came in, they were providing inspiring ideas, and picked up on my style immediately. I've worked with them for several months on a variety of projects and couldn't be happier. They are always conscious of my budget, often finding solutions to decorating within my own house rather than buying new. Their sourcing is creative and if not spot on immediately, they take my feedback and we discuss next steps. But most of all, I love their energy. They spent several hours in my house just hanging, moving and providing recommendations on what to do next...and they were all SPOT ON. When deciding on new family room furniture, they came up with the idea to just swap two of my rooms, and it's absolutely perfect!!! And budget friendly! Timely, responsive, friendly and most of all talented, my experience couldn't have been better and I hope to work with them for many more projects in the future!