Our Team

David Marlatt Headshot DNM Architecture

David Marlatt, AIA
Founder, DNM Architecture

David Marlatt graduated from the Georgia Institute of Technology in 1982 with an M.ARCH and began practicing in Atlanta with Taylor+Williams Architects where his houses and multi-family projects won national awards and publication. He obtained his architectural license at the tender age of 25 and soon after made the rational decision to quit his job and leave town. A true architect was born…

He debarked in Paris in 1986 and taught architectural design briefly before joining a local start-up software company, ABVENT, developers of 3D modeling and rendering software. Abvent quickly grew as both a developer and software distributor and, in 1987, became one of the first distributors of Hungarian based Graphisoft’s ArchiCAD, the original “BIM” software. David left Paris in 1992 for San Francisco, where he served as President of Graphisoft’s US office – and later as International VP of Marketing and Communications – and helped grow Graphisoft into a major worldwide player in architectural CAD software.

Always an architect, however, David left Graphisoft after its successful initial public offering (IPO) in 1999 to form DNM Architecture. Working throughout the San Francisco Bay Area, DNM Architecture, offers a full range of architectural services from planning and programming through design, documentation and construction administration. Pushing the envelope of architectural practice and technology, the firm uses intelligent 3D CAD software to communicate with clients, translate early designs seamlessly into construction documents and manage design changes without disrupting the building process. The firm’s integrated approach not only improves the final design, but produces final drawings faster and more accurately than more traditional methods.

Interests: running, biking, home remodeling, bricolage

Languages: English and French

Associations: Member American Institute of Architects, Chevalier dans l’Ordre des Palmes Académiques, Former president and director Lycée Français de San Francisco

David is a registered architect in California & Nevada

Julie Johnson Headshot DNM Architecture

Julie Johnson

A native of Northern California, Julie graduated from UC Davis with a degree in Environmental Design and a focus on Interiors. At an early age she became interested in built spaces and continuously redesigned her own. She has over 30 years of experience in architecture and has worked on commercial tenant improvements in Sacramento, custom homes in the Western Colorado Rockies, and now manages a broad range of residential remodel and addition projects around the California Bay Area.

Julie volunteers for the San Geronimo Valley Lions Club and is the Marin Builders Association representative for DNM Architecture.

Interests: Gardening, art, sailing and hiking in the great outdoors.

Karl Vavrek Headshot DNM Architecture

Karl Vavrek

Karl Vavrek has 30 years of experience in the Architecture, Engineering and Construction (AEC) industry having spent 15 years as a structural engineering consultant prior to becoming an architect. He has worked on projects big and small, worldwide and especially enjoys working on-site, during construction.

A native of Pennsylvania, Karl holds the degrees of Bachelor of Architectural Engineering from PennState University and Master of Architecture from the California College of the Arts. Prior to joining DNM Architecture, Karl worked for several architecture and construction firms and before that spent 7 years at structural consulting firm DeSimone in New York City and San Francisco.

For the past twelve years Karl has taught architectural design, representation and history part-time at the College of Marin. He is an Assistant Coach of the Archie Williams High School Mountain Bike Team.

Interests: Sustainability, Art, and Mountain Biking

Associations: Registered Professional Engineer in California; LEED Accredited Professional

Karl is a registered architect in California

Olivier Pennetier Headshot DNM Architecture

Olivier Pennetier

Olivier Pennetier joined DNM Architecture in 2006 and leads our efforts to make all of our projects more energy efficient. He has been a LEED accredited professional since 2003 and a Certified Energy Analyst (CEA) since 2019.

Prior to joining the DNM Architecture team, Olivier worked for Van der Ryn Architects in Sausalito, CA and has been an independent consultant, working with architecture firms and universities throughout the country to provide bioclimatic design solutions, site and climate analyses, shading impact reports such as San Francisco’s Section 295, as well as recommendations on daylighting, solar stress mitigations, and passive design strategies.

A native of France, Olivier holds a B.S. in Environmental Science from Humboldt State University and a Masters of Architecture from the University of Hawaii.

Interests: Building performance optimization and simulation, Ephemeral desert architecture, Home brewing

Languages: English and French

Associations: LEED AP

Paolo's Ciolino's Headshot DNM Architecture

Mathilde Manacorda

Mathilde was born in Marseille, France, and moved with her family to Marin County when she was 7. Raised in a very hands-on, crafty environment by an architect mother, it is no wonder Mathilde developed a passion for architecture at an early age. She learned to draw, experiment with sculpture, and analyze environments and her surroundings, often sharing with her mother some architectural thoughts of friends’ homes after playdates. Frequent trips back to her family home in France further strengthened her love for design and instilled in her a desire to create spaces that families could enjoy across generations, throughout their life.

Currently an intern at DNM Architecture, Mathilde will soon receive a B.Arch in architecture from the Rhode Island School of Design. She is excited to work in her familiar California setting and ready to use her knowledge and love of French and American architecture to help clients create living spaces that will reflect their family surroundings, adapt to their environments, and be enjoyed for years to come.  

Interests: Sewing, Snowboarding, Hiking

Languages: French, English

Associations: National Council of Architectural Registration Boards

Paolo's Ciolino's Headshot DNM Architecture

Paolo Ciolino

Paolo is the newest member of the DNM Architecture team, joining as an intern in summer 2021. He grew up in Healdsburg, California, and discovered a love for architecture and design at an early age while attending architectural tours with his mother. Originally a mechanical engineering student at Rensselaer Polytechnic Institute, he has recently switched focus to architecture after completing a design class. Paolo already has a strong background in 3D modeling and design and looks to bring this experience to DNM Architecture and apply it to his architecture studies.

Interests: 3D modeling, Music, Cooking

Languages: English, Spanish