Introduction
Located in Shinjuku Sanchome, Isetan Shinjuku is one of Japan’s most prestigious department stores.
The complex consists of the Main Building, the Men’s Building, and the nearby Isetan Kaikan. Together, they form a major shopping and dining destination in central Tokyo.
This guide explains the differences between each building, along with practical information for visitors.

What Is Isetan Shinjuku?

Address: 3-14-1 Shinjuku, Shinjuku-ku, Tokyo
Isetan Shinjuku is the flagship store of the Isetan Mitsukoshi Group. It is directly connected to Shinjuku Sanchome Station and about a five-minute walk from JR Shinjuku Station East Exit.
The store is known for its luxury brand selection, high-quality food floors, and strong reputation among both local shoppers and international visitors.
Main Building vs. Men’s Building

Main Building

The Main Building focuses on women’s fashion, cosmetics, luxury brands, and gourmet food.
The cosmetics floor on the first level features both Japanese and international brands.
The basement food halls (often called “depachika”) offer sweets, bento boxes, delicatessen items, and premium takeaway options. These floors are especially popular for gifts and seasonal specialties.
The 7th floor houses restaurants serving Japanese, Western, and Chinese cuisine.
Men’s Building
Isetan Shinjuku Men’s Building
Located across from the Main Building, this is one of Japan’s largest department stores dedicated entirely to men’s fashion.
It offers business suits, luxury labels, dress shoes, casual fashion, and accessories. The Men’s Building is particularly well known for its extensive shoe department and tailored clothing services.
What Is Isetan Kaikan?
Isetan Kaikan
Address: 3-15-17 Shinjuku, Shinjuku-ku, Tokyo
Isetan Kaikan is a separate building located near the Main Building. Unlike the department store floors, it primarily houses restaurants and service-related businesses.
Many visitors combine shopping at Isetan with dining at Isetan Kaikan, making it a convenient option for lunch, dinner, or meeting friends.
Dining Options
You can choose between:
The 7th floor restaurant area inside the Main Building
Standalone restaurants located in Isetan Kaikan
Peak hours are typically lunchtime (around 11:30 a.m. to 1:30 p.m.) and weekend afternoons.
Opening Hours
Main Building and Men’s Building
10:00 a.m. – 8:00 p.m. (subject to change)
Isetan Kaikan
Hours vary by restaurant or tenant.
Please check the official website for the most up-to-date information.
Access
Directly connected to Shinjuku Sanchome Station (Tokyo Metro Marunouchi Line and Fukutoshin Line)
About a 5-minute walk from JR Shinjuku Station East Exit
Underground passageways allow relatively easy access even on rainy days.
Tax-Free Shopping & Visitor Services

Isetan Shinjuku provides tax-free services for eligible international visitors.
Major international credit cards are accepted, and multilingual assistance is available.
It is considered one of the most popular department stores in Shinjuku among overseas tourists.
Who Should Visit Isetan Shinjuku?

Travelers looking for luxury brands
Visitors interested in Japanese department store food culture
Business professionals shopping for formalwear
Tourists staying near Shinjuku Station or Shinjuku Sanchome
Conclusion

Isetan Shinjuku is more than just a department store.
With its Main Building, Men’s Building, and Isetan Kaikan, it offers a complete experience combining fashion, gourmet food, and dining in one of Tokyo’s busiest districts.
If you are exploring Shinjuku, Isetan is a convenient and high-quality stop for shopping, dining, and discovering Japanese department store culture.
Looking for the original article in Japanese?
Click here to view the Japanese version on Daily Shinjuku.








