Onsen By Housed

A new kind of wellness destination has landed in Sydney’s CBD, with Onsen by Housed transforming the former Tetsuya’s site into a design-led sanctuary for movement and recovery.

Inspired by traditional Japanese bathing culture, Onsen blends thermal bathing with performance training and quiet, considered spaces—positioning itself less as a gym or spa, and more as a modern wellness house.

At its core is a focus on balance: strength and stillness, effort and recovery, all designed to support long-term wellbeing rather than quick fixes. Every element—from lighting and materials to scent and sound—has been shaped to create a calm, immersive environment.

The space is organised into five distinct zones, each with a specific role in the overall experience.

The Onsen area draws directly from Japanese bathing rituals, with mineral hot pools, cold immersion, steam and recovery chambers designed to reset the nervous system and promote deep restoration.

The Gym is performance-driven but intentionally low-pressure, equipped for strength and conditioning with a focus on controlled movement, technique and longevity over intensity.

A dedicated Pilates studio offers reformer and mat classes centred on alignment, breath and precision, while personal training programs are tailored to individual goals—spanning strength, mobility, rehabilitation and stress reduction, all guided by a long-term, sustainable approach.

Beyond physical training, Onsen also incorporates Co-Working & Contemplation spaces, designed for focused work and quiet thinking, alongside a Health Bar serving matcha, broths and nutrient-focused offerings.

Memberships include access to the gym, onsen facilities and Pilates classes, with additional coaching and training programs available for those looking for a more structured approach.

Located just minutes from Town Hall Station, Onsen sits in the heart of the city while offering a distinctly removed, almost meditative atmosphere.

Image credit: Onsen by Housed | Website