At Maison Mousselon, design is about more than aesthetics—it’s about creating spaces that truly work for the people who live in them. Founder Sophie Mousselon shares how she crafts homes with intention and how Programa helps her stay organized amid the creative chaos.
In Practice


“It quickly became her everyday design companion.”
Sophie MousselonFounder
Introducing Maison Mousselon
For founder Sophie Mousselon, the idea of “house” goes beyond walls and décor—it represents a welcoming space where friends gather, families grow, and memories form. Maison Mousselon strives to reflect that sense of comfort, anchored by functionality and timeless style. Whether it’s a complete renovation or finishing touch, Sophie aims to optimize each home’s flow, storage, and visual impact using carefully selected materials and thoughtful design details.
“She now keeps all of her supplier details in one searchable library, organizes products by category, and builds supply lists for clients without the tedious back-and-forth of scattered files.”
Sophie MousselonFounder
When Sophie first tried Programa, she was simply looking for a central product database. It quickly became her everyday design companion. She now keeps all of her supplier details in one searchable library, organizes products by category, and builds supply lists for clients without the tedious back-and-forth of scattered files. Clients can even log into a personalized dashboard to see mood boards and product lists—all in real time. Meanwhile, Sophie manages tasks via Programa’s to-do lists, ensuring no detail slips through the cracks.

Solving Daily Challenges
Maison Mousselon often juggles dozens of project updates: new references, supplier invoices, changing client feedback, and evolving design concepts. By consolidating everything into Programa’s schedules, libraries, and client dashboards, Sophie eliminates the usual risk of misplacing information. It becomes a single source of truth for each project, allowing her to keep track of every product, cost, and conversation in an organized, visually appealing format. That way, Maison Mousselon stays agile—easily sharing real-time updates with clients and ensuring every home reflects its owners’ personality and needs.


“It becomes a single source of truth for each project, allowing her to keep track of every product, cost, and conversation in an organized, visually appealing format.”
Sophie MousselonFounder
It all started with this word, house.
A word that reminds me of a place of anchor for a family, a place to come together, celebrate strong moments, welcome friends.
And as a silent witness, this place, which we wish to reflect its image. Sometimes bold, sometimes wiser, always timeless, above all functional.
A soothing place, an energizing place, a rejuvenating place.
So it is with joy that I present to you Maison Mousselon, a house at the service of yours. With passion and attention to detail, my mission is to reveal the beauty of your living space.
Founded by Sophie Mousselon, the agency is dedicated to complete renovations of apartments or houses and also offers decoration services.
Streamline circulation, create views, provide contrast, design tailor-made storage to optimize space, select durable materials, play with textures. Endless possibilities for creating beauty.


“Programa has become essential to the functioning of my agency.”
Sophie MousselonFounder
I use Programa every day. I discovered the solution because I was looking for a functional database to reference all the products that we place on each project but also to be able to integrate the favorite references identified during our research and easily accessible in a single location using category filters.
I then discovered all the services offered by Programa and there are many more. I was able to centralize all my supplier data, create supply lists for my clients, give them access to the dashboard with the mood board and product lists or even create my to do's per project.
Programa has become essential to the functioning of my agency.


What challenge did the platform help overcome in a most recent project?
Daily challenges! Not losing information, centralizing data, having a sharing platform with customers help me meet daily challenges.