Our expertise and creative team thinking will help you realise your vision.


In 2006, Steve Warner established OUTHOUSE design as a fresh, customer-focused landscape design and horticulture consultancy. The focus for Steve and the team is you, the client – this is your outdoor space or garden, and our role is to listen to your needs and inspire you with our ideas.

Since then, we have delivered a broad range of projects from innovative, award-winning residential gardens to extensive master planning of community spaces. The key strength of our team is our drive to create sustainable places for people to live, work and enjoy. We love what we do, and really enjoy sharing the creative process with our clients, to come up with a design we are both proud of.

We are passionate about creating the ‘outdoor living experience’ and we are grateful for the trust our clients have in us. We appreciate that the planning involved in creating a garden is becoming more intense, but seeing the end result – months or years later – makes it all worthwhile. The partnership is our passion, and our clients keep us inspired.

STEVE WARNERPrincipal Designer
Diploma of Landscape Design and Horticulture
Recipient of the Allan Correy Award for Design Excellence
2017 & 2016
Fellow of the Australian Institute of Landscape Designers
and Managers
Past President of AILDM

“Consider what’s possible.”

Throughout Steve’s career in both local government and in OUTHOUSE Design, Steve has been responsible for the direction and management of many projects working with Architects,  Engineers, Playground Designers and Landscape Construction companies. This exposure has provided insight into the vast number of factors which ensure a successful project including, supplier selection, community consultation, budget planning, materials selection and contingency planning.

Steve’s experience focuses on the design, documentation and construction supervision of an extensive range of Open Space projects. These projects include All Access playspace design, local and regional park design, environmental rehabilitation, landscape maintenance consolidation, and therapeutic and educational design.

KATRINE MARDINISenior Landscape Architect
Bachelor of Landscape Architecture, University of NSW
Approved WWCC
Play Australia Member
Cultivate NSW Committee Member

“Play spaces don’t have to be boring – they should entice and feed the imagination of the child within.”

Katrine joined OUTHOUSE design in 2011 and has worked on a broad range of landscape design projects from commercial, educational and therapeutic playgrounds.

With a strong passion for unique, natural and sensory gardens, Katrine has developed a special focus in the design and implementation of inclusive playspaces for all ages and all settings such as childcare centres, schools, shopping centres, community spaces and parks.

Katrine is a talented designer with a strong eye for detail. Her approachable manner and excellent ability to communicate design solutions via clear and easy to read plans is the very reason why her designs have been nationally recognised. Katrine is a champion of the great work that Kidsafe undertake, recently completing the Kidsafe Playground Safety and Inspection Workshop and maintaining an ongoing understanding of current Playground Safety Standards.

LARISSA BYRNESenior Landscape Architect
Bachelor of Landscape Architecture UNSW

“Landscape Architecture is forever evolving. It keeps people looking forward to the future, reminiscing about the past and feeling present in our very busy world.”

Larissa is a Senior Landscape Architect who partners with Clients in the Commercial, Health and Educational Sectors. She works alongside Project and Programme Managers, mainly, in bringing their brief to life through creating unique and desirable spaces for the intended users and beyond.

Larissa believes a Landscape Architect is incredibly important, and more so now, in today’s society. They design, develop and bring to fruition a space suitable for people no matter their background, their religion or their status. Everyone has a basic right to enjoy the outdoors and gain a sense of belonging. Designing a landscape is important for those who will immediately use it but also for those who are yet to use it. The best feeling is when people connect with the landscape.

Larissa has worked alongside high profile Clients such as Knox Grammar School, RSPCA NSW, Mission Australia, Best Western Hotels and Fresh Hope Care Aged Care. Larissa felt honoured to manage and work on projects that have been awarded Gold and Best in Category in the Australian Institute of Landscape Designers and Managers Association (AILDM) most importantly the projects for Knox Grammar School, Mission Australia and Best Western. This is one of the most rewarding moments in Larissa’s career so far.

Larissa received a Bachelor Degree in Landscape Architecture from the University of New South Wales.

CARINA BRONTEGraduate Landscape Architect
Bachelor of Landscape Architecture UTS

“Good design lets nature in”

Carina has recently completed her Bachelor of Landscape Architecture at UTS. Her final project examined the landscape system of a catchment and how that might produce positive social environmental relationships when considered in landscape architecture planning.

Carina has been an AILA Fresh NSW committee member since 2016, has completed public survey work for Waverly Council and has recently returned from a trip to Vietnam where she gained hands on experience building with Bamboo.

She enjoys most things outdoors and learning about different cultures.

GABRIELLE KUTISStudent Landscape Architect
Bachelor of Landscape Architecture UNSW

“Let nature play the protagonist”

Gabrielle is currently undergoing her final year of study within a Bachelor of Landscape Architecture at the University of New South Wales. Her love for all things art & nature initially drew Gab to study Landscape Architecture.

As her studies and exposure to the professional practice has grown; she is increasingly interested in the relationships between people and plants.

Gab has a strong love for native plants having grown up exploring various national parks of Australia; and that is where you will find her most days when not at OUTHOUSE or university!