We Are

We are Design Assembly – a studio based in Bali, Indonesia. We specialise in modern, tropical architecture and design.

We opened our doors in 2015. And since then we’ve worked on beach clubs, restaurants, bars, resorts, hotels and private villas (you can take a look through some of them here).

Most people work with us on their projects from scratch – from coming up with a design concept, right the way through to construction. Other times, we work alongside consultants for things like design concept or interiors, and we come on board for a specific part of a project.

Whatever way you might work with us, our job is always to think about what’s right for a project and its location, as well as bringing to life the most well-designed, buildings and spaces that we can.


We’ve by no means got this all worked out. But being more sustainable in the way we design is something we’re always trying to do better at. This comes from the way we plan a space for things like natural light and ventilation, to using mostly local or reclaimed materials for building.

But we want to do more. Eventually we’d like to see all of the projects we work on to be fitted out with solar panels, water recycling systems, only reclaimed or completely sustainably sourced woods and greener concrete wherever its used.


We’re a small, core team of architects and designers from across Indonesia (and Ipswich). We work with a wider team of freelancers and consultants we trust and partner up with for different parts of different projects.

Portrait black and white photo of Tim

Tim Caston


The team is led by Tim. Originally from Ipswich in the UK, he escaped the harsh winters and reached Bali’s shores 8 years ago.
With a Masters Degree in Architecture from Sheffield University, Tim worked on and lead a variety of residential and hospitality projects for practices in London, Perth and Bali before establishing Design Assembly in 2015.

Portrait black and white photo of Yogi

Yogi Pratama

Senior Architect

From Bandung in Java, Yogi’s worked on an impressive list of projects and for well-known practices in Singapore and Indonesia. He’s one of our most experienced architects and leads our bigger projects. Out of the office Yogi makes and produces music, so naturally is in charge of the office Spotify.

Portrait black and white photo of Addie

Addiena Irzan

Senior Architect / Interior Designer

After working for the Bali-based GFAB practice for eight years on architecture and interiors, Addiena took a bit of a break from the profession (mainly we think to pursue her passion for karaoke).
But we lured her back in. She manages our projects which include both architecture and interiors.

Portrait black and white photo of Gede

Gede Jayantara

Graduate Architect

An architecture graduate from Udayana University and from Jimbaran Bali, Gede has moved the least far for the gig. Impressively, Gede speaks fluent French without having set foot in the country–tres bon!

Portrait black and white photo of Rombe

Rombe Alfian

Graduate Architect

Rombe joined us fresh out of Uni just after getting his degree in Architecture last year. He moved over to the island from his hometown in Sulawesi especially to work for Design Assembly. As well as being our youngest architect, he’s also now our experienced in-house coffee barista.