Sarah Waller
Owner/Principal

Our ambitious and exuberant leader Sarah is the inexhaustible creative energy behind Sarah Waller Architecture. Originating from the UK with a multitude of qualifications including Bachelor of Arts, Masters in Architecture and an Open Builder’s License, Sarah’s passion for architecture and design is all encompassing. She has a love of monochrome, an obsession for plants and stationery. When she’s not busy running her two companies (Sarah Waller Architecture and Sarah Waller Building) she’s enjoying time with her husband and two daughters at the beach.

Lena Keilhofer
Project Architect

With a life-long passion for design, Lena was drawn to architecture for its mix of creativity and functionality. During and after her studies at the Technical University in Munich she gained valuable insights in high-end residential and multi-residential projects all over Germany. As a registered Architect in Germany and Australia she developed an in-depth understanding of design and solution-oriented thinking.  Since 2020 Lena has been based on the Sunshine Coast driven to create the perfect spaces for her clients, always willing to go the extra mile.

Reg. Architect QLD No. 6442

Angelina Deck
Architect 

With a deep passion for design and a meticulous eye for detail, Angelina brings clarity, creativity, and structure to every project she touches. As a registered architect, she is a trusted leader in the design process, balancing technical precision with aesthetic intuition. Her broad experience spans bespoke residential, multi-residential, and mixed-use developments, making her an asset across a diverse range of project scales and complexities. This versatility, combined with her exceptional organisational skills and talent for clear, considered communication, allows her to navigate the nuances of each brief with ease.

Cynthia Hergeth
Building Designer

Originally from Germany Cynthia moved to Australia in 2014. After attending a technical university in Germany, Cynthia knew that architecture is more than just a job, it is a passion. After moving to Australia, she completed the Building Design Diploma at TAFE Queensland East Coast in 2018. During and after her studies Cynthia has been working on high end residential projects on the Sunshine Coast. Being experienced in Graphic Design and social media Cynthia brings several talents to the team.

Trixi
Emotional Support

Trixi, our resident Ragdoll cat, has officially taken over site supervision, primarily from the sunniest spot in the room. Between strategic naps and quality control cuddles, she keeps morale high and stress levels low.

Her specialties include keyboard interruptions, perfectly timed cuddles, and gently reminding us to take proper break times.

Every studio needs a little Trixi.

Boo

Meet Boo, our adorable and colour-coordinated emotional support companion at Sarah Waller Architecture. Boo was an integral part of our team, and you could often find her curled up on a client’s lap during presentations. Her drafting skills were always a work in progress, but her ability to brighten the studio was unmatched.

In May 2026, we sadly had to say goodbye to our much-loved studio member. Boo will always hold a special place in the SWA family and will be deeply missed.
Just in case you were wondering: Boo was a Pekapoo,  a Pekingese and Toy Poodle cross.