As a founding principal of Splice Design, Tonja has a strong belief in the value of community to enhance the future of design. She believes people are influenced by the nature of the spaces around them so she begins her design process with a reorientation of a person’s perspective and perception of their surroundings, whether in a private retreat or a public social space. Tonja starts with research and analysis to creatively solve design and construction challenges.

Working in architecture and design for more than 20 years, Tonja has managed a full range of projects – residential design, public spaces and small and large retail and commercial structures. Her design projects have spanned international and domestic assignments; large commercial retail structures in Dubai and Santiago; a convention center expansion in New Orleans, as well as office buildings in Georgia and Florida.

Tonja recognizes the importance of a collaborative relationship with clients in order to create buildings and spaces that enhance and resonate with our lives. Her strategy is to communicate clearly how multiple influences create a clear dynamic design. No matter the scale, she is able to strategically and pragmatically think how each individual element relates to the whole.



Dawn, a founding principal of Splice Design, has worked in the industry for over 20 years. She has led the design and development of projects in architecture and interiors for retail boutiques, hospitality, corporate offices, large-scale conference centers, and most recently, single-family residential.

Growing up she learned to blend the methodical influence from her engineering father with the creativity of her artistic mother. Because of this, Dawn has always found herself drawn to architecture and design. Thus, she decided to pursue a Master’s Degree in traditional American and European architecture.



Maria Augusta “Guta” Louro is an architect and designer, with her career’s work spanning the earliest stages of construction drawings through to the final furniture design and selection. Her projects, spread throughout the US and Brazil, specialize in residential interior design and take an almost scientific approach to the impact of color and spatial planning on the lifestyles of her clients.

Her sophisticated approach to comfort and eccentric layering of materials and colors has earned her a number of accolades, with her projects cited in dozens of major national and international publications, including House Beautiful, The Décor Yearbook of Sao Paulo, Vogue Living, The New York Magazine, Living Etc., Newspapers and more.

Guta holds a degree in Architecture and Urbanism from the Fundacaoa Armando Alvares Penteado (Sao Paulo, Brazil), a certificate in Interior Design from the Escola Panamericana de Arte (Sao Paulo, Brazil), an Executive MBA from Fundacao Getulio Vargas (Sao Paulo, Brazil), and a Master of Fine Arts from the New York School of Interior Design (NYSID).