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- Portfolio - Franklin Penthouses | mosaicarchitects
Franklin Street Penthouses designed for city living, offering warm, comfortable interiors and panoramic views of San Francisco’s skyline and iconic neighborhoods. Franklin Penthouses Overlooking the posh San Francisco neighborhood of Pacific Heights, Nob Hill and Russian Hill, these Franklin Street Penthouses were designed to enhance city living by creating comfortable, warm environments, with ever-changing views of the skyline. Franklin Penthouses.jpg 007.jpg 003 (2).jpg Franklin Penthouses.jpg 1/6 Each of the penthouses speaks a unique design language custom tailored to the urban dweller.
- Stefan Eder, AIA
Stefan Eder, AIA, Mosaic Architects & Interiors. Using 3D, VR technology to guide clients in creating sustainable contemporary and traditional architecture & interiors. Stefan Eder, AIA | Partner “Great design is simply life-changing. Thoughtful design has the ability to transform a space, and the life lived in it.” ~ Stefan Eder Stefan Eder’s creativity stems from being continuously curious and open. It starts with learning about his clients, their desires, the project, and its sense of space. His clients frequently bask in his ability to craft their overall vision while lovingly caring for each detail. Whether a new build or reimagining of an existing space, Stefan’s designs stay authentic to style, reflecting its geographic location while elevating the creation into its best iteration. Classically trained in Europe and the U.S., Stefan is adept at beautifully capturing influences across cultures, architectural styles, and personal aesthetics. Throughout the creative journey, he guides clients through a multidisciplinary and integrated approach that seamlessly connects architecture, interior design, furnishings, lighting, and exterior hardscaping and landscaping. The best way to future-proof any project is to build a high-quality, well-designed, well-constructed building. From day one, Stefan considers everything you’ll see -- and won’t see -- in your home. Using 3D and VR technology, you will virtually walk through your home, visualizing all your design choices, and seeing how they fit together. At each step, your project is documented to the minutest detail, such as ceiling heights, cabinetry finishes, and even the placement of each light switch and electrical outlet, so everything is just how you like it. Stefan Eder, a founding partner at Mosaic Architects & Interiors, earned a Bachelor of Science degree in Architecture and Urban Planning from the University of Stuttgart and a Master of Architecture and Allied Arts degree from the University of Oregon.
- Overview Old
Boutique architecture and design firm specializing in fine custom homes, estates. Award-winning design reflects each client's unique style & personality. Overview Mosaic Architects & Interiors is an award-winning boutique firm with over two decades of experience. With offices in California and Colorado, we specialize in custom estate architecture, interior design, renovations, and sustainable solutions for residential, commercial, and hospitality projects. Every project is approached with a fresh perspective, designed to reflect your unique style and personality. Virtual Reality At Mosaic Architects and Interiors, we blend artistic vision with cutting-edge technology to bring your dream space to life. Our process begins with a deep understanding of your goals and lifestyle, and we translate that vision into an immersive 3D experience using advanced virtual reality tools like Oculus goggles. From the earliest schematic walkthroughs to fully detailed interiors, you’ll see and feel your space take shape—exploring layouts, adjusting materials, and refining finishes in real time. By integrating AI with our VR and 3D rendering process, we deliver creative solutions with speed, precision, and clarity. This interactive approach allows you to step inside your future home before a single wall is built, making the journey more collaborative and efficient. With every detail thoughtfully considered, we ensure that your custom design is not only beautiful but deeply personal and entirely your own. Seamless Harmony Whether your project is nestled in the mountains, perched above the ocean, or set in a vibrant urban landscape, our architectural and interior designs are connected to their surroundings—highlighting the natural beauty of the site while reflecting your vision. Every detail is artfully considered, ensuring that both indoor and outdoor living spaces bring your ideas to life. Project: Northridge Rendering Project: Sunset Meticulous Execution Bringing your vision to life takes precise coordination and a deep understanding of the design and approval process. We work closely with owner representatives, contractors, and project administrators, ensuring every detail is documented and managed—from estimates to installation. From Net Zero Homes to Precision Renderings Design is our passion. Drawing on our team's decades of industry experience, we merge timeless expertise with cutting-edge technology to craft spaces that reflect your lifestyle and surroundings. Our personalized, luxury-level approach ensures a seamless, thoughtful experience from concept to completion. Project: Linden Net Zero Residence Discover Our Design Process Awards 2023 Gold List Honoree - LUXE Magazine 2015 Citation Award - AIA Colorado North 2013 Mountain Living Top Mountain Architect Award 2012 Architects' Choice Award - AIA Denver 2011 Architects' Choice Award - AIA Denver We are honored to be a Historic Boulder Business Member Spotlight! "Their creative team of professionals have years of proven experience in architecture, planning, interior design, landscape, and "green" consultation. They have designed and built a broad range of new properties and seamless remodels through-out the years. Regardless of the scope of size of a project, they approach every detail with a fresh mindset, while paying close attention to the details that make each project specific to a Client." Recent Publications Covers + Featured Projects
- Portfolio - Knollwood | mosaicarchitects
A refined remodel featuring a new addition, custom metalwork, raked plaster fireplace, and serene interiors with white oak cabinetry and quartzite accents. Knollwood The clients of this home envisioned a transformation that blended modern flair with their own unique artistic touch, infusing the space with high-end materials and creativity. 2316 Dark Bronze Cladding)edited.tif IMG_2926.JPG IMG_8477.JPG 2316 Dark Bronze Cladding)edited.tif 1/10 A new addition was thoughtfully designed to expand the entry, powder room, and mudroom, while sleek metal cladding was introduced to complement the existing stone and stucco. Inside, the open layout had areas that seemed to compete for attention due to overlapping sightlines, so the living room ceiling was lowered, and the fireplace was widened to create a more intimate atmosphere with improved acoustics. A talented plaster artist worked her magic, covering the new fireplace with 15 feet of vertical raked plaster. The standard metal stair railing was replaced with a custom mesh design, expertly fabricated and patinaed by a skilled metalsmith, who also crafted unique dining shelves and a new hood enclosure. The kitchen and primary bath were completely reimagined, with serene, neutral tones featuring white oak cabinetry, fresh tile, and a striking backlit Cristallo quartzite waterfall island, creating a peaceful and luxurious vibe. Contractors: Taylor Construction
- Portfolio - B Hazy Ranch | mosaicarchitects
A stunning mountain ranch home blending rustic farmhouse charm with contemporary design, featuring gabled forms, indoor-outdoor living, and serene reservoir views. B Hazy Ranch Nestled amongst the vast agricultural landscape, this new family home is a mosaic of gabled mountain ranch masses, clustered with contemporary connections, and conjoined with a rustic farmhouse suite and library silo. BHazy_01 copy_edited.jpg BHazy_07.jpg BHazy_06.jpg BHazy_01 copy_edited.jpg 1/14 The elongated floor plan and expansive doors and windows allows for several indoor/outdoor relationships, and benefits the serene reservoir and mountain views. Bringing stone and other textural finishes to the interior, and designing special moments to display the Owners art collection, makes every day encounters a delight in this residence. While snuggled at the cozy window seat or entertaining on the covered patio, family experiences and memories are sure to shape this whimsical ranch property for years to come. Contractor: Ellis Builds Landscape: Lifescape Colorado
- Perry Dental
Perry Dental This hair salon was reimagined to bring in vast amounts of natural light into a deep space so that the hairdressers may recreate their clients' appear ance to perfection. Material and color choices were carefully made to create a vibrant yet comfortable mood. The semi-circular bar top was designed to become the central anchor of the hair salon where conversations and ideas can be shared.
- Fontana Residence
Fontana Residence Next to the San Francisco Bay and Fort Mason, this high-rise condominium enjoys unobstructed views of the Golden Gate Bridge and the Bay to the North, City views to the South. By creating large openings amongst rooms, this design allows for spectacular views in every direction, day and night.
- Careers - Hiring
Apply to an award-winning architect about your next custom design project. Site planning to permitting, 3D renderings to bespoke furnishings 4 locations in CA & CO. Careers Thank you for your interest in our firm! Mosaic Architects is a full-service architecture and interior design firm specializing in high-end residential projects throughout Colorado and California. We have offices in Boulder, San Francisco, Santa Barbara, and Napa Valley. We value a collaborative work environment with an emphasis on live/work balance. Our goal as a team is to learn from one another and design beautiful, elegant homes. We love our work - our projects demonstrate a high level of design quality in various styles. Please note that any of our roles are required to be in person. Fully remote candidates will not be considered. No phone calls or walk-ins please. Apply Here: Attach a cover letter and résumé Upload File Upload supported file (Max 15MB) Send Thanks for submitting!
- Overview
Boutique architecture and design firm specializing in fine custom homes, estates. Award-winning design reflects each client's unique style & personality. About Overview Process Team Mosaic Architects & Interiors is an award-winning boutique firm with over two decades of experience. With offices in California and Colorado , we specialize in custom estate architecture, interior design, renovations, and sustainable solutions for residential, commercial, and hospitality projects. Every project is approached with a fresh perspective, designed to reflect your unique style and personality. Seamless Harmony Whether your project is nestled in the mountains, perched above the ocean, or set in a vibrant urban landscape, our architectural and interior designs are connected to their surroundings—highlighting the natural beauty of the site while reflecting your vision. Every detail is artfully considered, ensuring that both indoor and outdoor living spaces bring your ideas to life. Meticulous Execution Bringing your vision to life takes precise coordination and a deep understanding of the design and approval process . We work closely with owner representatives, contractors, and project administrators, ensuring every detail is documented and managed—from estimates to installation. Project: Sunset Discover Our Design Process Utilizing Technology to Bring Your Design to Life At Mosaic Architects and Interiors, we blend artistic vision with cutting-edge technology to bring your dream space to life. Our process begins with a deep understanding of your goals and lifestyle, and we translate that vision into an immersive 3D experience using advanced virtual reality tools like video tours or Oculus goggles. From the earliest schematic walkthroughs to fully detailed interiors, you’ll see and feel your space take shape—exploring layouts, adjusting materials, and refining finishes in real time. Stage 1: "White Box" Schematic Design Experience each room to scale and get a true sense of the layout, ceiling heights, and views. Stage 2: Adding Exterior Materials Once the layout feels just right, we add materials and design outdoor spaces. Whether that means adding a cozy patio, outdoor kitchen, or any features that bring your vision to life. Stage 3: Completing the Design with Interiors Step into the model and see your space with selections like cabinetry, countertops, art, and furniture, everything you need to start imagining the project as your own. From Net Zero Homes to Precision Renderings Design is our passion. Drawing on our team's decades of industry experience, we merge timeless expertise with cutting-edge technology to craft spaces that reflect your lifestyle and surroundings. Our personalized, luxury-level approach ensures a seamless, thoughtful experience from concept to completion. Project: Linden Net Zero Residence Awards 2023 Gold List Honoree - LUXE Magazine 2015 Citation Award - AIA Colorado North 2013 Mountain Living Top Mountain Architect Award 2012 Architects' Choice Award - AIA Denver 2011 Architects' Choice Award - AIA Denver We are honored to be a Historic Boulder Business Member Spotlight! "Their creative team of professionals have years of proven experience in architecture, planning, interior design, landscape, and "green" consultation. They have designed and built a broad range of new properties and seamless remodels through-out the years. Regardless of the scope of size of a project, they approach every detail with a fresh mindset, while paying close attention to the details that make each project specific to a Client." Recent Features Publication Archive
- Commercial & Hospitality
Commercial & hospitality services by boutique design firm specializing in elegant spaces in tune with natural materials that welcome guests to exquisite detail. Commercial & Hospitality Custom Interiors for Homes & Estates Mosaic creates one-of-a-kind interiors that are in harmony with your personality, your home’s location, architectural style, and lifestyle. The language of place -- whether an urban hub, beach-front retreat, high-rise penthouse, vineyard home or mountain sanctuary -- influences our interior design approach, purposefully selecting and placing elements tailored to your high-end home or luxury estate. At the center of our design process is you -- your lifestyle, aesthetic desires, treasured collections and artwork -- to create beautiful interiors you love to live in. Interior Design Services Accomplished across all styles -- such as contemporary, minimalist, modern edgy, casually inviting, timeless sophistication -- Mosaic’s interior design style is uniquely flexible and fluid. Your interior project is expertly conceived and layered room by room, by: Capturing your home’s architectural features into drawings and sketches, laying out furniture and collecting furnishings that fit the space and your lifestyle Selecting interior fixed finishes, creating look books and mood boards with samples so you can see, feel and touch each artfully sourced selection and material Creating 3D renderings and virtual walk-throughs with photo-realistic imagery so you can fully understand and experience your new interior with luxury furniture like a curvaceous comfortable Kagan sofa, the elegant simplicity of a Hans Wegner easy chair, a dramatic Holly Hunt console table, striking craftsmanship of a Pineo chandelier, or a high-end Liaigre dining table Commissioning artisanal and bespoke furniture when a one-of-a-kind handmade piece is the perfect choice Showcasing artwork, special collections, and finishing accents that ready your home for your arrival to begin fully living in your new space Tell us about your project Thoughtfully Designed Spaces Mosaic specializes in creating thoughtfully designed spaces through custom architecture and interiors. We will bring your vision to life with a fresh mindset, by carefully listening to you, to the language of place, your lifestyle and unique opportunities. We pay meticulous attention to each detail. Be effortlessly guided through your design journey. Custom and Personalized Homes Explore our Interior Design Portfolio of stunning homes designed by our teams in California and Colorado. Discover Our Design Process Project: Sumac Residence, Contemporary Santa Barbara Office Project: Sunset, Contemporary Project: Elk Ridge, Contemporary
- Portfolio - Granby Ranch | mosaicarchitects
Granby Ranch retreat with rustic steel and timber, high-performance design, and panoramic views of the Continental Divide and Indian Peaks. Granby Ranch Perched on a Rocky Mountain hillside overlooking the Continental Divide near Winter Park, this Granby Ranch home is rooted in the spirit of a historic mountain mining town, tucked among the trees. 2107 250805 Hi-Res Renders FINAL lights on_15 - Photo.jpg 2107 250805 Hi-Res Renders FINAL lights on_86 - Photo.jpg 2107 250805 Hi-Res Renders FINAL lights on_97 - Photo.jpg 2107 250805 Hi-Res Renders FINAL lights on_15 - Photo.jpg 1/6 While it may evoke a rustic character with its weathered steel, heavy timber, and wood siding, this home is designed with cutting-edge performance in mind. Featuring high-performance windows and doors, along with foam-free insulation, it’s a true mountain modern retreat—delivering efficiency without compromising aesthetics. Expansive windows and floor-to-ceiling sliding doors that pocket seamlessly into the walls open the home to sweeping views of the Indian Peaks and the Never Summer Wilderness, stretching as far as the eye can see. Inside, warm wood-lined walls and rich bronze tones create inviting, and inspiring spaces that echo the rhythm of the changing seasons—morning to night, all year round. Contractor: Bishop Builds
- Home
Award-winning luxury architecture & interiors in CA & CO. Be effortlessly guided through an experience of thoughtfully designed spaces to reflect your style & lifestyle with Mosaic Architects & Interiors. At Mosaic Architects + Interiors, every project begins with your vision. Blending over 20 years of award-winning experience with a fresh, boutique approach, we design homes and spaces that are deeply personal, timeless, and resilient. From custom estates to thoughtful renovations, we craft sustainable environments with care, precision, and intention—bringing beauty and function to every detail. Craft a legacy. With Mosaic’s signature level of care and unwavering commitment to excellence, we transform your architectural dreams into personal masterpieces—placing you at the heart of every decision. From curated material selections to seamless guidance through every detail, we create a distinctive environment that reflects your style and lifestyle, ensuring your vision endures for generations.






