The Forest House
Live Life as a Masterpiece
- Client
- Khun Pratanporn
- Year
- 2026
Overview
“A private residence concealed within a natural hollow, floating above a lake while remaining deeply rooted in the earth a hidden world between nature and imagination, discovered only by those invited in...”
Design Narrative
The Floating Hollow
The Floating Hollow is imagined as a hidden world concealed within a natural hollow a private escape where architecture, landscape, and imagination quietly blend together. Surrounded by earth, trees, shadows, and water, the house feels detached from reality: like a secret place waiting to be discovered. The journey through the space is playful and cinematic, filled with layered platforms, framed views, hidden corners, and unexpected transitions that create a sense of adventure and curiosity.
Raw natural textures stone, aged wood, weathered materials, ground the house within its environment, balancing the dreamlike atmosphere with warmth and authenticity. Floating lightly above the lake while remaining deeply rooted in the earth, the Forest House becomes a world unto itself: one where you do not simply arrive at a house, but descend into one.
The Staircase
The Cave Path
The entry sequence is conceived as a cave-like pathway a journey of gradual discovery rather than an immediate reveal. The sculptural staircase rises through a composition of display plinths at varying heights, each carrying a ceramic vessel, a trailing plant, a small sculptural object from the owner’s collection.
The wall above becomes a gallery of framed artworks and curated pieces, assembled as if accumulated over a lifetime rather than placed all at once. The floor is dark and ancient. The lighting is warm and directional. The experience is of descent into a world that was already here before you arrived.
“The house does not announce itself. It waits at the end of a path, half-hidden by trees, floating above water. You do not find the Floating Hollow so much as it allows itself to be discovered and only then does it reveal how much thought went into making it feel as if no one had thought about it at all.”
The guest bedroom interprets the concept of layered rock formations strata shaped slowly by nature over time. Its ceiling is draped in linen-like fabric panels that billow softly from the oak structure, creating the feeling of sleeping inside a canvas tent suspended within the forest. The walls carry horizontal bands of warm oak panelling interrupted by rough stone-textured sections, reading as geological layers. A leather headboard in saddle-tan is decorated in a stitch pattern and flanked by a leather nightstand with brass handles and a pipe-and-cone bedside lamp. The wall above is hung with tribal and primitive art frames the owner’s collection, accumulated with the particular instinct of someone who finds beauty in the handmade and the ancient. Through the open glass door, the willow tree stands.
The bathroom is conceived as a cave within the house a space shaped by time and texture rather than by the hand of a decorator. The walls are clad entirely in rough-cut terracotta and brick tile in a staggered mosaic pattern, each piece irregular, the surface reading as something found in the earth rather than made for a room. Against this raw surround, the vanity niche is a shock of drama: dark swirling marble in near-black and amber, framing an oval mirror with a dark twisted-branch frame and a double-arm sconce above it. A rough structural column in the centre ground of the space completes the sense of being inside something excavated rather than constructed. Every material here has been chosen because it looks as if it was always there.
Design Narrative
The Master Bedroom..Deepest Hideaway
“Hidden suncturay by the water..”
The master bedroom is the most secluded room in the Floating Hollow a private world detached from the outside, even as the outside fills the view from every window. Two large cylindrical columns wrapped in dark brick tile flank the opening to the garden terrace, framing the willow tree beyond as if it were a painting specifically commissioned for the room. The pitched structural roof above is expressed as exposed oak beams in a triangular composition. The leather headboard, the warm floor in parquet oak, and the sitting area with leather chairs and a low block table create an interior of profound material quietness. Art objects on the wall small, personal pieces are placed the way things are placed in a room long lived in.
The Tree House
“A Watch Tower for Imagining”
The meeting room is conceived as a tree house, the first building an explorer would climb to survey the landscape before setting out. Its ceiling is lined with hand-cut bamboo-shingle tiles arranged in a traditional overlapping pattern, the warmth of each small piece multiplied by their hundreds into a surface that feels both craft-made and architectural. Bamboo pipe columns frame the space, and a chandelier of horizontal bamboo tubes with hanging pendant lights hangs at the centre. A wall of dark metallic tree-branch relief artwork in bronze and silver defines one end. Two desks are placed facing the garden window, one antique, one modern as if belonging to two different kinds of thinking that happen to share the same room. Lapis-blue tile columns mark the garden threshold.
Office Space
“The house does not announce itself. It waits at the end of a path, half-hidden by trees, floating above water. You do not find the Floating Hollow so much as it allows itself to be discovered and only then does it reveal how much thought went into making it feel as if no one had thought about it at all.”
SIWA Interior — On The Forest House
Power Within Stillness
The Forest Vault
The gym is a long barrel-vaulted room in warm oak its ceiling fitted with painted landscape panels between structural arched beams: an impressionist forest scene in blues, greens, and earth tones that covers the entire vault above the exercise floor, so that every upward glance during a workout is met with nature. All equipment in the room is custom-made in wood: oak dumbbell racks, a curved wooden treadmill, cable machine frames in weathered timber with black-rope wrapped column pipes. Mirrors on both long sides double the vault into an infinite procession. The garden and willows are visible at the far end. It is the most unusual gym in any house SIWA has designed and one of the most beautiful.
Design Narrative
I
The Curved Ceiling as the House’s Identity
The living room’s multi-curve sweeping oak ceiling is the architectural statement of the entire house. Its flowing, continuous forms each curve precisely designed and lit from within give the impression of something organic growing over the space from above. It is not decorative; it is structural, and it defines every proportion below it.
II
Raw Texture as Design Language
The rough-cut brick tiles of the bathroom, the weathered stone treads of the staircase, the linen ceiling panels of the guest room each room in the house uses texture as its primary design element. Not finish, not colour, but the quality of a surface at arm’s reach. This is a house you understand first with your hands, then with your eyes.
III
The Owner’s Collection as Architecture
The art objects, ceramics, tribal frames, and curated pieces throughout the house are not styling, they are the brief. The owner is a collector, and the architecture was designed to hold a collection that grows and changes. Plinths, niches, gallery walls, and open shelves are integrated into each room so that objects have proper places to be, and the house can absorb new acquisitions without being rearranged.
IV
The Willow Tree as a Recurring Presence
The willow tree visible from the master bedroom, the guest room, the gym, and the living area is not an accident of the site, it is a deliberate framing decision. Every major room was oriented and glazed so that the willow appears in a specific position: centred, in profile, as a distant silhouette, or as a near presence. The tree is, in each room, a different painting.
Project
The Forest House
Location
Bangkok, Thailand
Client
Khun Pratanporn