Shopping Mall
Siam Square One
Siam / Pathumwan (corner of Siam Square), Bangkok, Thailand
The enclosed 7-storey mall anchoring the entrance to Siam Square (opened 2012, renovated/rebranded 2017), managed by PMCU (Chulalongkorn University's property arm) rather than Siam Piwat. Normally grouped with Siam Paragon, Siam Center and Siam Discovery as the fourth pillar of the Siam shopping district, but skews younger and more budget than its upscale neighbors, connected directly to BTS Siam Exit 4.
Hours
Booking site listing10:00 AM - 10:00 PM daily
“The mall operates daily from 10:00 AM to 10:00 PM.”
tripadvisor.com · Checked 5 Aug 2026
Price
Single reportFree entry. Individual costs apply for shopping, dining and entertainment
“No, entry into Siam Square malls like Siam Paragon, Siam Center, and Siam Square One is free.”
airial.travel · Checked 5 Aug 2026
Age suitability
Single reportStudents and young adults drawn by budget-friendly fashion (from about 100 baht/item) and trend-led events, plus families using the cinema and play areas and tourists passing through Siam
“trendy clothing starting at just 100 baht per item ... recreational facilities such as a modern cinema complex and interactive play areas for children”
airportels.asia · Checked 5 Aug 2026
Caveats
A stray AI search summary claimed the mall was 'currently closed' in 2026, but a direct fetch of the same Tripadvisor page found no such claim and a January 2026 review describing it as normally operating ('Open mall area easy to explore refreshing vibe'); some 2025-2026 reviews mention a dim/quiet feel in parts,…
3 sources checked for this venue.