GaGa Udon House（饂飩工房） 不易流行：変わらないもの、変わり続けるもの。 Two branches in Bangkok. An udon specialty restaurant featuring house-made noodles from our Udon Workshop and dashi finished with Kyoto's Fukushima Katsuo — plus tempura, sushi, and sweets across a menu of 199 dishes.

We have 2 branches in Bangkok. Sukhumvit 39 (main branch): inside Soi Promsri (No. 6/5, H Building, 1st & 2nd Floor, Khlong Tan Nuea, Vadhana, Bangkok 10110). About a 10-minute walk from BTS Phrom Phong. Thonglor branch: 1st Floor, Fifty Fifth Thonglor Building, Soi Thonglor 2 (No. 90, Sukhumvit 55 Road, Khlong Tan Nuea, Vadhana, Bangkok 10110). About a 5-minute walk from BTS Thong Lo.

Sukhumvit 39 (main branch): 10:00-21:00 (last order 20:30). Thonglor branch: 11:00-22:00 (last order 21:30). Both branches are closed during the New Year holidays and Songkran. Alcohol is served from 11:00 until close.

Reservations are accepted by phone only. Regular table and counter seating does not require a reservation — we seat walk-ins in order of arrival. Sukhumvit 39 (main branch): the private room (2nd floor, 5 guests or more, up to 12, no room charge) requires a reservation in advance. Call 094-254-5102. Thonglor branch: the all-you-can-eat course requires a reservation in advance. Call 063-335-5304.

Thonglor branch: we offer an all-you-can-eat course of sukiyaki, shabu-shabu, and mala from 17:00-22:00 (last order 21:30, 90-minute time limit). There are 2 courses: 489 baht with beef, or 249 baht without beef (children 110-140 cm tall are half price, under 110 cm eat free, over 140 cm pay full price). A reservation is required in advance. Sukhumvit 39 (main branch): the all-you-can-eat buffet is not available here.

We offer 17 hot kake udon dishes, 12 cold bukkake udon dishes, 2 zaru udon dishes, plus 5 original creative udon such as mentaiko (spicy cod roe) cream udon, crab cream udon, and shrimp cream udon, and 6 curry udon dishes. We also have spicy options such as tantan udon, Sichuan mapo udon, and mala-style dishes. A large portion of noodles (+100g) is free, and an extra serving (kaedama, 250g) can be added for 30 baht.

Yes — 31 tempura dishes, 12 sushi dishes, 9 rice bowl (donburi) dishes, 32 side dishes (otsumami), 7 desserts, and 18 drinks including 11 alcoholic options, for 199 items in total.

Our noodles are hand-made in-house every day — our logo carries the name "Udon Workshop" (饂飩工房) for this reason. Our dashi is made with kombu, niboshi (dried sardines), and katsuobushi (bonito flakes) from Fukushima Katsuo Co., Ltd. of Kyoto (founded in 1922), and our green tea, matcha, and hojicha come from Honme Asakichi of Shizuoka (founded in 1868). Our brand concept is Fueki-Ryuko — "timeless, yet ever-changing."

We accept all major credit cards, PromptPay, and cash. American Express is not accepted. There is no minimum spend for card payments. Listed prices do not include a service charge, and 7% VAT is added separately.

Sukhumvit 39 (main branch): there is 1 parking space in front of the restaurant. If it's full, we can direct you to the nearby Tops parking lot (2 hours free with a stamp and no minimum purchase; 50 baht per hour without a stamp). Thonglor branch: paid parking is available nearby (1 hour free with a stamp, then 20 baht per hour after that).

You can order delivery through GrabFood or LINE MAN (each branch has its own link). Takeout is also available in-store.

Yes — both branches have counter seating, so solo diners are very welcome. Both the Sukhumvit 39 and Thonglor branches have 7 counter seats each.

Yes, we have a kids' set: kake udon with your choice of shrimp tempura or chicken tempura, plus fries, jelly, edamame, pumpkin, and orange juice, for 159 baht (normally 200 baht). It can also be changed to cold udon. Sukhumvit 39 (main branch): for larger families, we also recommend our private room (5 guests or more, up to 12, reservation required, no room charge). Thonglor branch: for the all-you-can-eat buffet, children 110-140 cm tall are half price, under 110 cm eat free, and over 140 cm pay full price.

The entire restaurant is non-smoking. We ask that pets not be brought inside. Sukhumvit 39 (main branch): pets can wait in the passage beside the restaurant.

Yes, free Wi-Fi is available.

Adding our LINE official account as a friend unlocks LINE-member-only items, such as grilled beef tongue (150B to 99B) and cold shoyu udon (soy-sauce udon, 79B). Please show your LINE member card when ordering.