Matsunoya Sayamadai Opens Today at 10:00

StoresUpdated

The opening-notice line has dropped off the listing for Matsunoya Sayamadai (co-located with Matsuya). As of 9:48 on September 30, 2026, the store name carried in the official store information reads “Matsunoya Sayamadai (co-located with Matsuya),” with the “*Opening September 30 at 10:00” line that had been appended until just before now gone. The listed scheduled opening dropped at the same time, and the entry switched to a regular listing that carries no scheduled opening date.

The location is listed as 1-1-8 Sayamadai, Sayama-shi, Saitama, with business hours listed as “Open 24 hours.”

The listing switched before the opening time

Before After
Listed store name Matsunoya Sayamadai (co-located with Matsuya) *Opening September 30 at 10:00 Matsunoya Sayamadai (co-located with Matsuya)
Listed scheduled opening September 30, 2026, 10:00 (Not listed)

The listed opening time was September 30 at 10:00, but the note came off before that time arrived. A note on the store name is attached to stores still waiting to open, so the rewrite itself marks the shift from “a store about to open” to “a store standing in the list of operating stores.”

Sayamadai is the only Matsunoya in Sayama

Sayamadai is the sole Matsunoya in Sayama, with no other store in the same city. Saitama has 56 listings, the third-largest total nationwide behind Tokyo (106 stores) and Osaka (71 stores), but the count per city is uneven. Koshigaya and Kawagoe lead with four stores each, followed by Soka, Iruma, Warabi, Asaka and Minuma Ward of Saitama City with three. Matsunoya is present in 31 cities and towns in the prefecture, and those holding just one store are the largest group — Sayamadai among them.

Sayamadai is listed as co-located with Matsuya. Saitama leans more heavily toward co-location than the country as a whole.

Co-location type Saitama Nationwide
Co-located with Matsuya 44 stores 474 stores
Co-located with Mycurry Shokudo 7 stores 86 stores
Standalone Store 5 stores 122 stores
Total listed 56 stores 682 stores
Co-located share about 91% about 82%

Six stores are set to open in October

Six stores carried a listed scheduled opening as of September 30.

Scheduled Opening Store Prefecture
October 1, 2026, 10:00 Matsunoya Matsusaka Kamada-cho (co-located with Matsuya) Mie
October 1, 2026, 10:00 Matsunoya Shimonoseki Chofu (co-located with Matsuya) Yamaguchi
October 2, 2026, 10:00 Matsunoya Okinawa Hiyagon (co-located with Matsuya) Okinawa
October 10, 2026, 10:00 Matsunoya Uji Niban (co-located with Matsuya) Kyoto
October 15, 2026, 10:00 Matsunoya Yatsushiro (co-located with Matsuya) Kumamoto
October 28, 2026, 10:00 Matsunoya Maebashi Akagi Mall (co-located with Matsuya) Gunma

All six are co-located with Matsuya, and the prefectures are scattered — Mie, Yamaguchi, Okinawa, Kyoto, Kumamoto and Gunma. Sayamadai’s scheduled opening stood in that same list, as “September 30, 10:00.”

A word from our Matsunoya novice

56 stores in the prefecture, and Sayama's share of that is this one. Whether that counts as many or few, no telling.