Robot Building, Bangkok
The Robot Building is the current headquarters of United Overseas Bank and is located in the Sathorn business district of Bangkok, Thailand. Since its completion in 1987, it has come to be seen as one of the last examples of modernist architecture in the city.
It was designed by the Thai architect Sumet Jumsai for the Bank of Asia, with the intention of representing the increasing influence of computer technology on the banking industry. He was apparently inspired by seeing his young son’s plastic toy robot. Jumsai wanted the building to be a reaction against high-tech postmodern architecture, which he saw as being “a protest movement which seeks to replace without offering a replacement”.
To achieve the robot-like appearance of the 20-storey building, the sides step-back progressively in stages. This design technique also served as an efficient solution to the setback regulations that required an 18-degree incline from each side of the property line.
Two antennae on the roof serve as communications and lightning rods. The eyes are provided by two 6 m (19.7 ft) reflective glass windows looking out from executive meeting rooms, with eyelids made of metallic louvers. The building’s sides are adorned with ‘steel nuts’ made of glass-reinforced concrete, the largest of which measure 3.8 m (12.5 ft) in diameter, making them the largest in the world at the time of construction.
Despite some detractors, the Robot Building remains an icon of Bangkok architecture, and was selected by Los Angeles’ Museum of Contemporary Art as one of the 50 seminal buildings of the 20th century.
[edit] Related articles on Designing Buildings Wiki
- Big Duck.
- Building of the week series.
- Dancing House, Prague.
- Dunmore Pineapple.
- Fish Building, India.
- Fuji TV Building, Tokyo.
- Habitat 67.
- Lotus Temple.
- Lloyds of London.
- MahaNakhon, Bangkok.
- Metabolism.
- Ministry of Transportation Building, Georgia.
- Nakagin Capsule Tower.
- Office Center 1000 Kaunas.
- Owl House, South Korea.
- The Big Basket.
- The Gherkin.
- Unusual building design of the week.
Featured articles and news
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.
A brief run down of changes intentions from April in an onwards.
Reslating an ancient water mill
A rare opportunity to record, study and repair early vernacular roofs.
CIOB Apprentice of the Year 2025/26
Construction apprentice from Lincoln Mia Owen wins this years title.
Insulation solutions with less waste for a circular economy
Rob Firman, Technical and Specification Manager, Polyfoam XPS explains.
Recycled waste plastic in construction
Hierarchy, prevention to disposal, plastic types and approaches.
UK Net Zero Carbon Buildings Standard V1 published
Free-to-access technical standard to enable robust proof of a decarbonising built environment.
Prostate Cancer Awareness Month
Why talking about prostate cancer matters in construction.
The Architectural Technology podcast: Where it's AT
Catch up for free, subscribe and share with your network.
The Association of Consultant Architects recap
A reintroduction and recap of ACA President; Patrick Inglis' Autumn update.
The Home Energy Model and its wrappers
From SAP to HEM, EPC for MEES and FHS assessment wrappers.
Future Homes Standard Essentials launched
Future Homes Hub launches new campaign to help sector prepare for the implementation of new building standards.
Building Safety recap February, 2026
Our regular run-down of key building safety related events of the month.
Planning reform: draft NPPF and industry responses.
Last chance to comment on proposed changes to the NPPF.
A Regency palace of colour and sensation. Book review.























