PT SJA Group Indonesia · Yogyakarta / Seoul

Architecture between Seoul and Yogyakarta

SJ Group is an architecture and construction practice founded by Sungjin Cho, combining over twenty years of Korean design experience with the material and climatic realities of Indonesia.

Selected Projects Villa Palagan — Sleman, Yogyakarta, 2025

Selected Projects

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Villa Areumdaun

Sleman, Yogyakarta 2024

Digital Financial Support Center F119

Yeouido, Seoul 2023

Seocho Senior Restaurant

Seocho-gu, Seoul 2020

Pyeongchang-dong Dementia Care Center

Jongno-gu, Seoul 2019

Isaoil, Buam-dong

Jongno-gu, Seoul 2017

Also from SJ Group

Seoulsik

Authentik Korean Food

Our own kitchen — Korean home cooking, made the way it is made in Seoul, a few steps from campus.

Where: GIK UGM, Sleman, DIY
When: Soft opening · 29 August – 4 September 2026

20% off everything, all week

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From the Journal

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Events · 1 August 2026

Open studio: building a house in Yogyakarta

An afternoon in the studio for anyone thinking about building. Drawings on the table, costs discussed openly, no sales pitch.

News · 22 July 2026

Villa Palagan handed over

Our second villa in Sleman is finished. Fourteen months from first site visit to handover.

Careers · 5 July 2026

Junior Architect

We are looking for one junior architect to join the studio in Sleman, working on houses from drawings through to site.

Have a project in mind?

Tell us about the site, the programme and the timeline. We reply to every enquiry.

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