
Guide
House of Councillors, National Diet of Japan
9 min readOverview & Appeal
The House of Councillors offers official guided tours led by security officers (Eishi) following a designated route. These tours are available to those who have completed the registration process and typically take about 60 minutes to complete. This is a rare opportunity to witness the inner workings of the Japanese legislative-making process through an official, structured route.
History & Cultural Context
The House of Councillors is one of the two houses that comprise the National Diet of Japan. The National Diet Building is a central hub for the nation's political activities. The interior architecture reflects high-level Japanese craftsmanship and technical skill, utilizing specialized materials and traditional design elements. The facility also maintains a system for public engagement, such as special viewing opportunities on specific Sundays when the Diet is not in session.

Main Highlights
The tour route primarily includes the viewing lobby and the House of Councillors chamber. The chamber is the central space where Japanese legislative debates take place, allowing visitors to observe its grand structure and design firsthand. Visitors follow a strictly guided path led by security officers to ensure both safety and an informative experience.
Seasonal & Time-Specific Recommendations
Standard tours are available Monday through Friday (excluding holidays and New Year holidays) from 9:00 AM to 4:00 PM, with registration occurring at the start of every hour. However, please note that tours are suspended on days when plenary sessions are scheduled, from one hour before the session begins until the session concludes. During school vacation periods, morning sessions may become crowded; visiting in the afternoon is a great way to avoid peak times. Additionally, on the 1st and 3rd Sundays after the Diet session ends, special viewing is available through applications made via Diet members.
Experiences & Activities
Through the official program, you can explore the architectural structure of the chamber and the surrounding facilities in about 60 minutes. To prepare for your visit, you can learn more about the role of the House of Councillors through digital content such as the video work "Welcome to the House of Councillors." Please note that there are no dining facilities or cafeterias available within the building.
Surrounding Area
The area surrounding the National Diet Building is the political center of Japan, home to numerous government offices and ministries. The location is highly accessible via public transportation, located near major stations such as Nagatacho Station and Kokkai-gimae Station.
What to Bring, Dress Code & Etiquette
To ensure security, a baggage inspection is conducted every hour between 40 and 55 minutes past the hour. Please arrive with plenty of time to clear security. The following rules apply:
- Payment: The tour itself is free of charge, but please bring funds for any personal expenses in the surrounding area as there are no facilities inside.
- English Support: While the official website provides English information, please be aware that on-site guidance is primarily conducted in Japanese.
- Reservations: No reservation is required for groups of 9 or fewer people. However, groups of 10 or more must make a formal reservation in advance.
- Photography: Photography is generally permitted within the tour route, but filming while walking, using images for commercial/promotional purposes, or any photography that disrupts order is strictly prohibited. Always follow the instructions of the security officers.
- Dress Code: As this is a formal government facility, visitors are requested to wear appropriate, respectful attire.
- Belongings: Please be prepared for the mandatory security screening of your belongings upon entry.
- Accessibility: For details regarding barrier-free access and movement within the facility, it is recommended to check the official website or contact the desk in advance.