Natah / 01
Design & Build — Asta Kosala Kosali
Drawn to the mountain, open to the sea, raised stone by stone.
Walawastu is a Balinese architecture and build studio in Denpasar. Our architects are undagi — island-born, schooled in the old canon of measure and orientation. We read the land before we draw it, and stay until the last stone is set, so the hand that draws is the hand that builds.
View selected work
↓ Scroll — 08 sheets
01Design & Build
One studio
One studio — from the first line to the last stone.
We are both the architect and the builder. In Bali the undagi who draws a house has always been the one who leads its building — so the design is never handed to a stranger. One team, one accountability, the intent held intact from sketch to handover.
Design01
Documentation02
Construction03
Handover04
02The Undagi
Denpasar · Bali
Architects the island raised.
“The undagi does not impose a form. He listens for the order already in the land, and builds to it.”
— Walawastu
In Bali, the master builder is the undagi — keeper of the Asta Kosala Kosali, the lontar canon that sets how a structure must be measured, oriented, and proportioned. Our team is Balinese-born, raised inside this tradition rather than taught it from a book.
Every project begins by reading the site the way it has always been read — its fall toward the mountain (kaja) and the sea (kelod), the path of the sun, and the movement of water through the land.
What we draw is contemporary, but its bones are Balinese: open pavilions and shaded air, a central natah courtyard, paras stone and timber, and proportion measured to the body of the one who will live there.
03Tri Hita Karana
Three harmonies
Three harmonies hold every Balinese building in balance.
Parahyangan
Harmony with the divine
The compound oriented to the sacred kaja–kangin corner — the shrine, the gate, the threshold that orders the whole.
Pawongan
Harmony among people
Spaces measured to the family who live in them — where the household gathers, rests, and receives its guests.
Palemahan
Harmony with nature
Built into climate and land — shade, airflow, water, and the gardens that carry the house outward, in the spirit of subak.
04Disciplines
What we do
Design
A
Architecture
From the natah courtyard outward — villas, residences, and pavilions resolved to construction-ready drawings in the Balinese order.
I
Interior
Interiors drawn as one breath with the architecture: paras, timber, woven fibre, and the play of filtered light.
L
Landscape & Water
Gardens, ponds, and outdoor rooms — the building carried into the tropics, in the spirit of subak.
Build
C
Construction
Our own undagi-led site teams — tukang, carvers, and stoneworkers — build what we draw, by hand and to standard.
D
Documentation & Permit
Full technical drawing sets, plus PBG/SLF permitting and coordination with consultants across Bali.
P
Project Delivery
Programme, budget, and site supervision held in one hand — from groundbreaking to the final key.
05Selected Works
2022 — 2025
Bale / 02
Tebing / 03
Taman / 04
Interior / 05
Meru / 06
06Material & Craft
Of the island
We build with what the island gives — worked by hands that have always worked it.
Paras
Carved sandstoneSoft volcanic tuff, hand-carved into reliefs, screens, and the faces of the gate.
Batu Candi
Andesite stoneDark volcanic stone for bases, plinths, and the paths that ground a building.
Kayu Jati
Teak timberSlow-grown teak for structure and joinery — frames, columns, and shutters.
Alang-alang & Ijuk
Thatch & palm fibreTraditional grass thatch and black sugar-palm fibre — the roofs that breathe.
Bata Merah
Red brickHand-made clay brick, laid and left exposed — warm, textured, unmistakably Bali.
Prada
Gold leafReserved for the sacred detail — the shrine, the finial, the threshold of the divine.
07How We Work
Design → Build
Phase I · Design
01
Site, orientation & measure
Reading the land — the kaja–kelod axis, sun, and water — and setting the building’s measure to the body of the owner (pengukuran).
02
Schematic design
The natah and its pavilions take shape: plan, form, and the balance of shade and open air.
03
Development & documentation
Materials, sections, and details resolved into a complete, construction-ready drawing set.
Phase II · Build
04
Construction
Our own undagi-led teams build on site — stone, timber, and thatch worked by hand, the design held intact.
05
Handover
Final finishing, commissioning, and the keys — the house complete and ready to live in.
08Contact
Start here
Let’s lay the first stone.
Tell us about your site and what you want to build. We design and build villas, residences, and hospitality across Bali.
Mari membangun — let’s build.