Grounded in a philosophy of joyful, mindful living
Led by founder and principal designer Tennille Joy
Interior design and decoration are a visual form of storytelling. Every decision is purposeful, balancing function with refinement so that homes feel intuitive and extraordinary.

“A home is never just a collection of rooms. True design is the art of connection, ensuring every space feels distinct yet part of a cohesive whole.”
Tennille’s career spans more than 25 years, from holiday homes and penthouses in the Whitsundays to luxury beach houses on the Mornington Peninsula. For a decade she worked exclusively with Harold Mitchell, designing residences from a helicopter-accessed mountain lodge to a Melbourne penthouse inspired by his private jet.
Her philosophy draws on biological design, colour psychology and building health, creating interiors that work in harmony with the nervous system. Regular travel to Milan, Paris, China and the USA gives her clients rare pieces and trade-only collections that cannot be found in the mainstream market.


What we do
Curated interior design services from concept to completion.
Reimagining an existing home requires sensitivity and purpose. Tennille’s approach is holistic, considering spatial flow, natural light and daily rhythm, so the home is renewed while keeping its original character.
- Spatial flow & natural light
- Wellness-led planning
- Original character preserved

Working alongside architects and builders from the earliest stages, Tennille makes sure the interior concept complements the architectural intent, so the home feels intentional and complete.
- Architect & builder collaboration
- Interiors from the earliest stages
- Exterior & interior in coherence

Kitchens designed to gather around, bathrooms that balance proportion, light and texture, and laundries, cabinetry and joinery tailored to their purpose.
- Luxury kitchen & bathroom design
- Laundry design
- Custom cabinetry & joinery

Not every project begins with a renovation. Tennille curates furniture, art, lighting, textiles and window treatments, layering new pieces with treasured heirlooms to create depth and warmth.
- Furniture design & sourcing
- Window treatments & lighting
- Art, rugs & décor

Our process
Our holistic approach is centred on a deep understanding of you. It is your story that provides the greatest inspiration.
Engagement & brief
The journey begins with a private discovery session with Tennille. Through conversation, she learns about your lifestyle, intentions and design preferences, building a clear picture of what the home should express.
Concept & visualisation
Ideas take visual form through sketches, 3D visualisations, floor plans, mood boards and curated materials, so you see how your interiors will function and flow.
Design development
Concepts are refined in detail. Tennille collaborates with architects, builders and trades so structure and style align, and every finish, fitting and furnishing is selected.
Construction documentation
Comprehensive drawings and specifications give builders and tradespeople complete clarity, protecting the design vision through each stage.
Design management
Tennille coordinates implementation with trusted professionals, so you stay informed and supported while every element is delivered to the highest standard.
Furniture & window furnishings
Furniture, lighting, textiles and window furnishings are sourced through trusted artisans and Melbourne workrooms.
Installation & styling
Artwork and décor are placed to complete the design, and the home is handed over with a personalised care pack, presented in celebration.
Celebrated across Australia and abroad
Tennille’s career includes time with world-renowned studios Kelly Hoppen Interiors and Osborne & Little in London.
The moment you see your space and feel that it is an extension of you, then we have done our job.
Schedule a 15-minute discovery call, or request a private appointment at the studio.
Tennille Joy Interiors works from The Bank, 139 Martin St, Brighton VIC 3186, and designs homes across Melbourne, Sydney, Queensland and Australia. Contact us today!