--- title: "RBA Architecture — Architects & Building Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/architects-and-building-designers/rba-architecture-pfvwus-pf~1795253730 markdown_url: https://www.houzz.com/md/professionals/pf~1795253730.md entity_type: LocalBusiness business_name: "RBA Architecture" category: ["Architects"] image: https://st.hzcdn.com/fimgs/5b13a3450cbce620_9789-w400-h400-b0-p0--.jpg address: "801 Broadway, Sonoma, California 95476, United States" latitude: 38.2849 longitude: -122.4696 phone: "(707) 996-7947" website: http://www.robertbaumann.com rating: 5 review_count: 4 best_of_houzz_awards: 1 followers: 215 last_updated: 2026-08-23 --- # RBA Architecture Original Houzz profile: [RBA Architecture](https://www.houzz.com/professionals/architects-and-building-designers/rba-architecture-pfvwus-pf~1795253730) ## Professional summary - **Primary category:** Architects - **Location:** Sonoma, CA - **Serves:** Los Angeles, Santa Rosa, Napa, Petaluma, Novato, Pacific Palisades, Malibu, Sonoma, Boyes Hot Springs, Sebastopol, Saint Helena, Calistoga, Yountville, El Verano, Glen Ellen, Kenwood, Fetters Hot Springs-Agua Calie, Vineburg - **Houzz rating:** 5.0 out of 5 (4 reviews) - **Best of Houzz:** 1 award (2014), for Service. ## About ### Houzz Badges - Houzz Influencer - 50,000 Ideabook Saves I believe the focus of every project should be the pursuit of a "Shared Vision." Every client has at least a glimpse of what they want in their minds eye; I’m good at combining that with my own ideas about specific design styles. I like to use traditional forms in contemporary, energy-conscious ways, incorporating the latest building technologies and products that respond to their context. ### Services Provided - Architectural Design - Building Design - Home Remodeling - Architectural Drawings - Custom Homes - House Plans - New Home Construction - Home Additions - Home Extensions - Kitchen Design - Sustainable Design - Kitchen Remodeling - Energy-Efficient Homes - Floor Plans - 3D Rendering - Accessory Dwelling Units (ADUs) - Green Building - Bathroom Design - Space Planning - Guesthouse Design & Construction - Home Restoration - Historic Building Conservation - Barn Design & Construction - Basement Remodeling - Mudroom Design - Attic Conversion - Basement Design - Staircase Design - Deck Design - Garage Design - Laundry Room Design ### Areas Served - Los Angeles - Santa Rosa - Napa - Petaluma - Novato - Pacific Palisades - Malibu - Sonoma - Boyes Hot Springs - Sebastopol - Saint Helena - Calistoga - Yountville - El Verano - Glen Ellen - Kenwood - Fetters Hot Springs-Agua Calie - Vineburg ## Business Details | Field | Value | | --- | --- | | Business Name | RBA Architecture | | Address | 801 Broadway, Sonoma, California 95476, United States | | Phone | (707) 996-7947 | | Website | http://www.robertbaumann.com | | Followers on Houzz | 215 | ## Contact - **Houzz profile:** [RBA Architecture](https://www.houzz.com/professionals/architects-and-building-designers/rba-architecture-pfvwus-pf~1795253730) - **Website:** http://www.robertbaumann.com - **Phone:** (707) 996-7947 ## Credentials - **Best of Houzz:** 1 award (2014), for Service. ## Reviews **Overall rating: 5.0 out of 5 — 4 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### All 4 reviews **★★★★★ — Nicole Hoefer, Aug. 2021** > Robert and his team designed our beautiful farmhouse in Glen Ellen back in 2018. We enjoyed every moment of the design process. Robert was so easy to work with and took our dream and made it a reality. He knew instinctually where the house should sit so it took advantage of the best views and the best sun exposure throughout the year. We absolutely loved working with everyone in his office as well. He is a one-stop-shop; with an in-house interior designer, draftsman, and lighting specialist. His team knows how to get things done in a timely manner while delivering the highest quality product in the end. He also connected us with the builder we used to build the home and he too was a dream to work with as well! All in all, we highly recommend Robert Baumann and his team of talented people to help with a home remodel or new construction project. **★★★★★ — Steel Geisha Designs, May 2015** > I worked with Robert Baumann on the project pictured on his home page. Robert is a pleasure to work with and extremely talented. We collaborated very well on executing a large amount of railings and the main rotunda of the mansion. He has a great eye for design and has very warm architectural renderings. I would highly recommend Robert Baumann on future projects. **★★★★★ — norvalj, Jan. 2013** > Robert is a very talented architect. He has the highest integrity possible, is very professional, is responsive to client requests in a very timely fashion, and has very innovative ideas and suggestions. He has an excellent working relationship with other trades and is respected by all. I would never hesitate to hire him again (in fact he has done 3 house projects for me) and strongly recommend him. BJ **★★★★★ — Selma Blanusa, Jan. 2013** > I have worked with Robert close to two years on a large historic property in Sonoma. Robert has done an excellent job of listening about my needs and dreams. He brings much thought to the table but doesn't waste time with design ideas that are outside of the style or scope of the project. He provides a wealth of knowledge and precision detail that allow the contractors to complete the job well and highlights any issues quickly and effectively. I wouldn't want to work with anyone else. ## Selected projects - [Carneros Contemporary](https://www.houzz.com/hznb/projects/carneros-contemporary-pj-vj~7543731) - Location: Not specified - Photos: 15 - Description: This modern residence is set among vineyards that border the wet lands of the Napa River. The home is for a Music Producer and Designer and was inspired by the modern architecture that the owners admired on the shores of Long Island. The house is made for entertaining including an upper floor deck with glazed guardrails overlooking a nearby pond. Many rooms in the home have large areas of glass offering expansive views of the wide open landscape. The simple geometric forms of the home become str… - [Wright Ranch Residence](https://www.houzz.com/hznb/projects/wright-ranch-residence-pj-vj~5949476) - Location: Not specified - Photos: 25 - Description: An outdoor enthusiast originally from Canada, this client fills an important role at Google that requires a lot of traveling. With their primary home, close to work and in an urban environment, they wanted a get-away place to enjoy the outdoors again. They found a stunning 113-acres in the Wine Country of Sonoma County. Not only would they plant grape vines but also build a network of trails for hiking and mountain biking. Phase I included site work and the construction of a multi-purpose barn;… - [Bonnie Residence](https://www.houzz.com/hznb/projects/bonnie-residence-pj-vj~7544681) - Location: Not specified - Photos: 17 - [Mediterranean Wabi-Sabi](https://www.houzz.com/hznb/projects/mediterranean-wabi-sabi-pj-vj~7543704) - Location: Not specified - Photos: 22 - Description: This finely detailed home had a somewhat dated interior geometry at the kitchen. We removed a loft area above to create a vaulted, more dramatic space filled with light. We added a cruciform outdoor dining area separated from the remodeled kitchen by a glass wall system, allowing it to be an extension of interior space. The project started as a simple kitchen remodel and evolved into a renovation of the master bathroom, guest bathrooms, laundry room, new interior finishes throughout the entire h… - [Stags Meadow](https://www.houzz.com/hznb/projects/stags-meadow-pj-vj~7543736) - Location: Not specified - Photos: 17 - Description: Wanting a retreat from their busy work lives on the peninsula, this client was looking to build a family vacation home in Sonoma wine country that might provide supplemental income as a rental property. They found a lovely meadow (frequented by the stag) at the top of a steep access. A 2-story main house, attached garage with recreation room above, and second dwelling unit for visiting parents, were to be separate but connected by a covered porch. We arranged these program pieces around a pool p… - [Historically Chic](https://www.houzz.com/hznb/projects/historically-chic-pj-vj~4211440) - Location: Not specified - Photos: 13 - Description: This 1927 cottage is located just a few blocks from the historic plaza in downtown Sonoma. The previous owner had received an award for historic preservation of the exterior, but the interior needed to be updated. The new owner had us completely redesign the master bedroom suite, living room, dining room, and kitchen, including bumping out into the backyard for a new breakfast nook. She also wanted to add a pool and accessory structure to the property including a garage and guest bedroom. A simp… - [Sonoma Mountain Residence](https://www.houzz.com/hznb/projects/sonoma-mountain-residence-pj-vj~139738) - Location: Not specified - Photos: 21 - Description: n our first conversation the owners, they explained two things: 1) They wanted a house with a European feel, and 2) they wanted to build it out of an I.C.F. (insulated concrete form) Product. I.C.F.’s have all the passive solar benefits of a masonry mass material, and offer the designer endless possibilities exploring the “thick wall” language of building. 2 bedrooms, 2-1/2 bath - [Historic Craftsman](https://www.houzz.com/hznb/projects/historic-craftsman-pj-vj~7543749) - Location: Not specified - Photos: 21 - Description: For more than 30 years this was Sonoma’s haunted house. Once the previous owner left Sonoma for good, it didn’t take long for bats, bees and a few partying teenagers to find their way in to this old Craftsman bungalow. An active client purchased the properties surrounding this one and jumped at the opportunity to buy it. The house was deemed eligible for inclusion in the State Register of Historic Resources, requiring a restoration of the original structure, but also allowing for a modern additi… - [Sonoma Pool House](https://www.houzz.com/hznb/projects/sonoma-pool-house-pj-vj~3029043) - Location: Not specified - Photos: 16 - Description: It’s always fun to work on outdoor entertainment structures! The first project for this friend & client was to improve an existing upper level party deck. We replaced the existing canopy structure with an extension of the existing roof line to create a new viewing deck. The clients were previously required to access the deck through a bedroom, so we added an internal spiral stair from a lower level sun room that leads directly to the porch. For this sports-loving family that enjoys entertaining… - [Modern Farnhouse](https://www.houzz.com/hznb/projects/modern-farnhouse-pj-vj~3029095) - Location: Not specified - Photos: 28 - [Wine Country Spanish Estate](https://www.houzz.com/hznb/projects/wine-country-spanish-estate-pj-vj~139716) - Location: Not specified - Photos: 21 - Description: The clients were living in a Spanish revival neighborhood in San Mateo and specifically desired a home that reflected their interest in that style, as well as features they have seen on their travels. Their Sonoma property, only a short walk from the historic downtown district, had many natural features such as large oak trees, rock outcroppings, and a perfect empty meadow for a new vineyard. The challenge was to replace a poorly designed existing home with a slightly larger new home, while pres… - [Farmhouse Renovation](https://www.houzz.com/hznb/projects/farmhouse-renovation-pj-vj~143956) - Location: Not specified - Photos: 23 - Description: Originally from Oregon, our client made a career at Microsoft, did a lot of travelling, and earned the ability to purchase a 5-acre farm in much the much sunnier climate of Sonoma. A veteran of historic remodel projects, she brought her insightful vision of how to combine old and new design elements to the renovation of this 100 year-old farm house. We converted the old attic into a usable third floor through the introduction of 3 new dormers to provide more headroom. We also added bay windows a… - [Spanish Remodel](https://www.houzz.com/hznb/projects/spanish-remodel-pj-vj~583180) - Location: Not specified - Photos: 39 - [Urban spanish berkeley charm](https://www.houzz.com/hznb/projects/urban-spanish-berkeley-charm-pj-vj~254516) - Location: Not specified - Photos: 66 - [Urban Farmhouse](https://www.houzz.com/hznb/projects/urban-farmhouse-pj-vj~139783) - Location: Not specified - Photos: 56 - Description: The urban farmhouse is one of many architectural styles found in Sonoma for which the clients had an affinity and appreciation. These homes are adaptations of traditional farmhouses in their open, rural settings, to the denser urban context of a small town. They’re very simple in form and often appear to have been added on to over the years. The first floor is usually raised off the ground and entered from a wrap-around front porch, supported on wood posts or stone foundations. This appearance g… - [Belvedere Waterfront](https://www.houzz.com/hznb/projects/belvedere-waterfront-pj-vj~139770) - Location: Not specified - Photos: 17 - [Red Barn House](https://www.houzz.com/hznb/projects/red-barn-house-pj-vj~139759) - Location: Not specified - Photos: 17 - Description: The Owners loved the barn-like appearance of their home (originally built in 1945), but they had simply outgrown it. We returned a converted garage back to its original condition, relocated the kitchen, added a family room at the rear of the home, and created 4 bedrooms with a play loft on the new upper level. We were able to preserve portions of the original upper floor structure, brick fireplace and entry Dutch door. Helping them turn their ideas into reality was more play than work. A twistin… [See all 17 projects](https://www.houzz.com/professionals/architects-and-building-designers/rba-architecture-pfvwus-pf~1795253730) ## Community Q&A **Q: Beautiful!! would you please tell me what the exterior yellow paint co** *(in Photo Questions)* Beautiful!!! Would you please share what the exterior yellow paint color is? Thank you! A: The contractor picked this paint color. We have contacted him in the past and he does not have record of the color...sorry. **Q: Do you have the source for this table?** *(in Photo Questions)* It's so unique I've had my eye on it for months but was only ever able to track down one dead end product photo. Any help would be so appreciated! A: Hi Kelly, thanks for reaching out. It is a beautiful table! Our client purchased the table at a small boutique store in Sonoma, CA. The store is called G's General Store. I don't see they have a website but they are on Facebook. Their phone number is (707) 933-8082. Best of Luck! **Q: Bed** *(in Photo Questions)* where is the bed fron? A: Thanks for inquiring. however. we were not involved with the selection of furniture. It is a beautiful bed. **Q: Great Space** *(in Photo Questions)* What is the ceiling and walls covering? Any other info on how or where I can find something like it would be great. Thank You A: Thank you! The client contracted with Barn Pros, www.Barnpros.com. Good luck with your project. **Q: What is the countertop stone and color?** *(in Photo Questions)* hi, can you tell me what the stone color and type are please for the counter top? Thank you. A: The countertops in this kitchen are Caesarstone Alpine Mist. **Q: floor tile** *(in Photo Questions)* name of floor tile please! A: This is Terra Verde limestone supplied by Details International in Sonoma, CA. --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-23.*