Inside ‘The Mushroom’, A Pine Forest Cabin with a Sculptural Roof

This cone-shaped roof clad in wood shingles gives the cabin a bold identity while still fitting naturally within the forest.

Architecture firm ZJJZ has designed ‘The Mushroom’, a small yet striking cabin set within a pine forest in Jiangxi, China. From the start, the project focuses on how architecture meets nature, using form, material, and placement to shape that interaction.

The cabin is immediately defined by its cone-shaped roof, giving it a sculptural presence among the trees.

This cone-shaped roof clad in wood shingles gives the cabin a bold identity while still fitting naturally within the forest.

A Roof That Defines the Form

The most eye-catching feature is the cone-shaped roof, clad in wood shingles. Its smooth, tapering form contrasts with the vertical lines of the surrounding pine trees, creating a silhouette that feels both distinct and at home in the landscape. From a distance, the cabin reads almost like an object placed gently among the trunks.

Wood shingles and granolithic concrete slowly change over time, helping this forest cabin blend more naturally into its environment.

Materials That Change Over Time

The base of the structure is made from granolithic concrete, pairing with the timber shingles above. Together, these materials are chosen not just for durability, but for how they evolve.

As humidity and time affect their surfaces, the tones shift, helping the cabin visually merge more closely with the forest floor and surrounding trees.

Wood shingles and granolithic concrete slowly change over time, helping this forest cabin blend more naturally into its environment.

Light Touch on the Forest Floor

Rather than sitting heavily on the ground, the cabin is lifted slightly above the forest floor. This reduces disruption to the site and keeps the footprint minimal. Access is via a set of exterior stairs, creating a subtle transition as you move from the forest into the home.

Raised above the ground and accessed by exterior stairs, this cabin minimizes impact while creating a simple, elevated entry experience.
Raised above the ground and accessed by exterior stairs, this cabin minimizes impact while creating a simple, elevated entry experience.

A Curved Interior with Wide Views

Inside, the bedroom space follows the curve of the structure. Panoramic windows wrap along the walls, matching the circular geometry of the cabin. Whether sitting or lying down, the view stretches outward into the trees, making the forest a constant visual presence.

Curved panoramic windows wrap the bedroom, framing uninterrupted views of the surrounding pine forest.
Curved panoramic windows wrap the bedroom, framing uninterrupted views of the surrounding pine forest.
Curved panoramic windows wrap the bedroom, framing uninterrupted views of the surrounding pine forest.

A Loft Tucked Under the Cone

A small staircase leads to a lofted area designed for children. This upper level brings occupants closer to the interior of the cone-shaped roof. From here, the white ceiling curves overhead, rounded at the top, giving the space a soft, continuous feel.

Curved panoramic windows wrap the bedroom, framing uninterrupted views of the surrounding pine forest.
A compact loft space sits beneath the cone roof, offering a cozy spot with a unique view of the curved white ceiling.

A Bathroom Framed by Light and Privacy

The bathroom is arranged within a simple rectangular volume inserted into the main structure. Inside, a built-in bathtub sits beside a horizontal window. This window is carefully positioned to block views from nearby walking paths while still opening the space to the surrounding greenery.

Above, a circular skylight introduces shifting light throughout the day, changing the mood of the room depending on weather and time.

A horizontal window and circular skylight bring natural light into the bathroom while maintaining privacy from outside paths.
A horizontal window and circular skylight bring natural light into the bathroom while maintaining privacy from outside paths.

Understanding the Layout

The floor plans and section drawings reveal how the cabin is organized into two clear volumes: the main sleeping space and the compact service block for the bathroom and storage.

This simple arrangement keeps the interior efficient while allowing the overall form to remain clean and expressive.

Floor plans show a simple two-volume layout that keeps the cabin functional while maintaining its sculptural form.
Floor plans show a simple two-volume layout that keeps the cabin functional while maintaining its sculptural form.

‘The Mushroom’ shows how a limited footprint can still deliver a memorable architectural experience. Through a clear shape, evolving materials, and thoughtful interior moments, the cabin offers a distinct way to experience the forest.


Photography: Fangfang Tian, ZJJZ | Architect’s Firm: ZJJZ – Lead Architects: Sean Shen, Xuanru Chen, Yuying Kate Tsai | Structure Consultant: XIE Technologies | Contractor: Zhejiang Huzhou deyi Construction Co., Ltd.