KOUJI ALCHEMIST

The lounge and marble counter at KOUJI ALCHEMIST

LANG SUAN · BANGKOK

A quiet moment for scent and conversation. An intimate salon bar in Lang Suan.

VELAA SINDHORN VILLAGE · B117:00 — 00:00

Our story

A traveller’s salon. A meeting of cultures.

Imagine an alchemist travelling east in the 1920s. His private cabin is the starting point for our salon.

KOUJI ALCHEMIST by salon du japonisant brings together the atmosphere of Art Deco and Japanese aesthetics. Opened in February 2026 at Velaa Sindhorn Village, this small bar in Lang Suan is a place to step away from the city’s pace and settle into conversation.

Koji gives the name its roots in Japanese fermentation. Alchemy expresses our curiosity about the origins of ingredients, their distinctive aromas, and how a conversation can shape an evening. We value quiet, curiosity and a sense of closeness.

BANGKOK, SINCE 2026

Quiet · Curiosity · Connection

The point of view

Japanese sensibility. In our space and hospitality.

An interest in Japanese culture, expressed through the room, the details and the way we welcome each guest.

We begin by listening: to the aromas you enjoy, your preferences and anything you would like to avoid. Thoughtful service means finding a direction together, with attention to the details.

Understand the ingredients
Care in every detail
Listen to each guest

The craft

Glass equipment on the KOUJI ALCHEMIST counter — Behind the counter · KOUJI ALCHEMIST

Koji, aroma and conversation.

Our approach connects Japanese fermentation, the exploration of aroma and the person across the counter.

Koji & ingredients

Koji is part of the story of sake and shochu. It is where our exploration begins: with the ingredients, their origins and the people who make them.

Exploring aroma

Ingredients and drinks each have their own distinctive aromas. We value learning about these differences and their origins, and discovering personal preferences through conversation.

Starting with you

A conversation about the aromas you enjoy and how you feel that evening guides our approach. Listening is as much a part of the craft as working with ingredients.

The salon

Space to slow down.

Warm wood, leather seating, brass details and a marble counter set the scene. Inspired by a traveller’s private cabin, the room is intended for unhurried conversation, shared discoveries and comfortable moments of quiet.

The counter, cane chairs and arched details inside KOUJI ALCHEMIST — The counter · Lang Suan, Bangkok

Woodwork and lighting inside the salon — Details of the salon

Press

In the press.

A published introduction to KOUJI ALCHEMIST. Read the original on the publisher’s website.

Friday Bangkok

5 March 2026Original article in Thai

Friday Bangkok introduces KOUJI ALCHEMIST, a bar on the lower ground floor of Velaa Sindhorn Village in Lang Suan.

By Patag Panomai

Read on Friday Bangkok

Phuket 101

21 July 2026Original article in English

A Hidden Japanese Speakeasy at Velaa Langsuan

An independent introduction to KOUJI ALCHEMIST at Velaa Sindhorn Village in Lang Suan.

By Willy Thuan

Read on Phuket 101

Coverage reflects the time of publication. For current opening hours and contact details, see Visit.

Visit

Behind the door, in Lang Suan.

Velaa Sindhorn Village · B1

87 Lang Suan Road, Lumphini, Pathum Wan, Bangkok 10330

Hours: Daily, 17:00–00:00Last order 23:30
Access: BTS Chit Lom · approximately 10 minutes on foot
Parking: Available at Velaa Sindhorn Village

Open in Google Maps

Reserve via LINE

For reservations, contact our LINE Official Account @765xkwtj with your preferred date, arrival time and number of guests.

Contact

080 825 4746 Instagram · @kouji.alchemist

For changes to opening hours and current announcements, please check our Instagram.

LINE, Instagram and map links open in a new tab.

The entrance door and brass KOUJI ALCHEMIST sign — VELAA SINDHORN VILLAGEB1

Before you visit.

Reservations, directions and a few practical details for your visit.

How do I make a reservation?

Contact our LINE Official Account @765xkwtj with your preferred date, arrival time and number of guests. Our team will confirm availability.

Reserve via LINE

Where is KOUJI ALCHEMIST?

Find us on B1 at Velaa Sindhorn Village, 87 Lang Suan Road, Bangkok. It is approximately a 10-minute walk from BTS Chit Lom. See the entrance photograph and map in Visit.

Visit

What are your opening hours?

We are open daily from 17:00 to 00:00, with last order at 23:30. Please check our official Instagram for changes to opening hours and current announcements.

Instagram

Is parking available?

Parking is available at Velaa Sindhorn Village. For current parking fees and conditions, please check with the venue.