View from the entry into a lush green courtyard. The wood-clad reception and treatment room building frames the view beyond.View from the entry into a lush green courtyard. The wood-clad reception and treatment room building frames the view beyond.A pink sand-colored building with outdoor Thalassotherapy pool is seen through lush tropical forest vegetation.

Seaside Spa

Lombok, Indonesia

Status
In Progress
Date started
July 2025
Scale
28,000 sf | 2,600 sm + gardens
Typology
Spa, Hospitality
Scope
Planning, Programming, Architecture, Landscape, Interiors
Client
Confidential
Project Team
Mei-Lan Tan, Katie Marr, Anh Tang
COLLABORATORS
Richard Leung
Nestled in a lush valley in South Lombok, Indonesia, a new spa becomes the hidden heart of a seaside resort. Founded on serenity, sustainability, and community, the resort is composed of bespoke villas perched across a mountainside with spectacular beach and ocean views. As the spa is the first communal amenity planned for the resort, it is designed not only as a place to come but as a place to stay.
Archival black-and-white photograph of Mount Rindjani on the island of Lombok.
The mountain and valley topography of Lombok is used as a framework to organize the spa’s six main programs.

VALLEY AS FRAMEWORK

A contrast to the villas, the spa rests within a steep and wild valley. Guests enter at the top of the site and descend down and through the landscape as they bathe. With structures mostly set along the valley sides, the valley core is preserved as an untouched expanse of green: an ecologically active corridor and watershed.
The spa is purposefully meandering. Designed to provide decompression and discovery, the physical process of moving through the spa mirrors the psychological progress. Reflecting Muslim practices, the predominant religion of the island, guests only catch a magical glimpse of the ocean when they return to the top of the valley at the end of their cleansing and enlightening journey.
Aerial view of the Seaside Spa in Lombok, nestled in a lush, hilly landscape overlooking the beach and ocean beyond at sunset.
In the bathhouse, a low-light, cool-temperature saltwater pool features a fireplace carved into the room's dark stone walls.
A pink sand-colored building with outdoor Thalassotherapy pool is seen through lush tropical forest vegetation.

The spa is purposefully meandering. Designed to provide decompression and discovery, the physical process of moving through the spa mirrors the psychological progress.

Collage of the spa's six main buildings and gardens nestled within the greenery of the valley landscape.

ENDURING AND EPHEMERAL ARCHITECTURE

Every part of the spa is treated as its own sacred space, holding a feeling, a moment, or a program—whether a treatment room, a bath, or a place to pause along the journey. These spaces—like water settling in small tidal pools interspersed among rocks—are then organized and sheltered by roof planes. These planes delineate the six main buildings that compose the spa: reception and treatment rooms, contrast therapy suites, changing rooms (which contain their own hot/cold bath sequence), a cave-like main bathhouse and café, greenhouse, and an events lookout. A series of elevated paths with garden decks wander through the landscape and connect each of the six structures together.
Site plan diagram indicating the spa's six programs: reception & treatment rooms, contrast suites, changing rooms, bathhouse, greenhouse, and events.
GIF architectural plan diagram showing spa programs at different levels as the buildings step down the valley landscape.
Architectural site section drawing through the spa and steep valley slope, showing how the buildings follow the landscape.
The valley’s dramatic descent.
With a mix of heavy and light materials, the architecture both anchors and expands within the boundless landscape of the valley. Pink-tinted concrete forms the base of each program, providing a sense of grounded permanence that allows guests to relax and let go of a sense of time, of the outside world, and just be held within the comfort of the space. The roof planes are as light and quiet as possible, rendered in timber or, in the case of the main bathhouse, planted with vegetation. With a connection to the tree canopy and to the sky, each building offers a sense of porosity to let thoughts escape, for the mind to run free, and to turn the focus to the mind-body connection.

Every part of this spa is treated as its own sacred space, holding a feeling, a moment, or a program.

The open air rotunda features pink-tinted concrete columns, walls, and floors and a circular garden in the center.
In the main bath house, an open air rotunda with dry baths welcomes guests with an expansive connection to the sky. The dry baths adapt the wellness program to the semi-arid nature of Lombok.
A dark and cave-like pool is enclosed by a stone structure, overlooking the ocean and palm trees in bright sunlight.
A halotherapy room, with a window onto green vegetation beyond, is lined entirely with salmon pink salt blocks.
The main bath is housed within a cavernous interior designed to be grounding and protective; a halotherapy room atomizes fine salt particles into the air to hydrate and nurture the respiratory system, and is lined entirely with salt blocks.
Inside a wood-lined contrast therapy suite, showing a bath and daybed overlooking a small deck and lush garden.
Two architectural floor plan drawings of contrast therapy suites. Key spaces include a lounge, bath, and deck with garden.
Contrast therapy suites are communal and intimate, with their own private gardens and ocean views.

With a connection to the tree canopy and to the sky, each building offers a sense of porosity to let thoughts escape, for the mind to run free, and to turn the focus to the mind-body connection.

Warm and grounded pink-tinted concrete volumes are paired with porous and light roof planes. Here, the changing rooms.
Architectural floor plan drawings of the reception and treatment room building, showing its two levels and roof.
View from the entry into a lush green courtyard. The wood-clad reception and treatment room building frames the view beyond.
The reception and treatment rooms are a portal to the rest of the spa as it unfurls down the valley slope.
Site plan diagram showing the percentage of garden types on site, including wild, roof, sunken, decks, and water gardens.

RESEARCH & PROGRAMMING

Umé Studio began the project with a comprehensive research and programming phase to identify which spa and wellness treatments and programs would align best with the seaside resort’s ethos. Programs were then sized according to anticipated numbers of visitors as well as what the property could reasonably accommodate.
Focused on natural health and well-being practices, such as stress management, functional nutrition, and exercise regimes, the spa draws from local cultural practices as well as current best practices emerging across the globe.
The spa serves villa owners, guests who rent a villa when owners are away, other visitors to Lombok, and residents of the island. It is designed equally for those who are participating in multi-day treatment programs; for those who are there just for the day; and for those who just wish to relax in the stunning landscape or meet with friends. Circulation is carefully planned to accommodate all types of users while maintaining the privacy and serenity that certain treatments and programs require.
Historical black-and-white photo of a Fan Palm tree, which is several times taller than the four people standing nearby.
Recent bird's eye view of the site, looking from the ocean, across a white sand beach, towards the steep green hillside.
Black-and-white historical photo of four men bathing together in a traditional wooden Japanese bathhouse.
‍A historical photograph gives a sense of the scale and spectacle of plants able to grow in the region; a recent site photo looking towards the valley; traditional bathing practices informed the modern wellness experience of the spa.

VISIBLE INFRASTRUCTURE

Lombok is a semi-arid area where careful water management is necessary. Umé Studio conducted extensive water calculations to determine realistic rainfall projections and water use based on the spa’s visitation rate. Current projections estimate that 30% of the project’s water needs can be supplied through rainwater capture and reuse. The spa’s sloped timber roof planes gather as much rainwater as possible, which is then transferred to two cisterns onsite by a series of visible gutters—making water harvesting an integral part of the architecture. Treated rainwater is used for showers and other non-potable uses. The baths themselves use water that is continuously treated and recycled, requiring no more than their initial filling to maintain.
Pie chart indicating percentage of annual rainwater collection on roofs, green roofs, impervious surfaces, and the site.
Bar chart indicating anticipated rain water collection on site by month.
Architectural site plan diagrams indicating rainwater collection and treatment flow and chlorinated water treatment flow.
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