Nishitokyo City Office (Tanashi Building):
phone number, opening hours and address
The main phone number of the Nishitokyo City Office (Tanashi Building) is 042-464-1311. Here is what to know before you call, with the address, opening hours and official website.
Nishitokyo City Office (Tanashi Building) main line
Official website www.city.nishitokyo.lg.jp
Without hyphens: 0424641311
The main number connects you to an operator, who will put you through to the right section. Calls are usually answered in Japanese.
Checked against the official website · October 7, 2026
ABOUT
About Nishitokyo City
Nishitokyo City was created in 2001 through the merger of Tanashi and Hoya cities. It is a residential area known for the Tama Rokuto Science Museum and the greenery of the University of Tokyo farm; the city office is the Tanashi Building (Minamicho), while the functions of the former Hoya Building have moved to facilities such as the disaster-prevention and Hoya health and welfare center in Nakamachi.
BASIC INFO
Basic information
- Main phone
- 042-464-1311
- Address
- 〒188-8666 東京都西東京市南町五丁目6番13号Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
- Opening hours
- Weekdays 8:30–17:00Closed on weekends, public holidays and Dec 29 – Jan 3
- Official website
- www.city.nishitokyo.lg.jp
- Local government code
- 132292Tokyo Tama Area (Cities) · City
ACCESS
Access and map
Address
〒188-8666 東京都西東京市南町五丁目6番13号
RELATED OFFICES
Phone numbers of related government offices
Public offices in charge of this municipality (national and prefectural branches). National taxes — income tax and consumption tax returns, tax certificates — are handled by the tax office, not the municipal office. Addresses are shown in Japanese.
- 042-394-6811
〒189-8555 東京都東村山市本町1丁目20番22号
Covers Kodaira City, Higashimurayama City, Kiyose City, Higashikurume City as well as Nishitokyo City
- 0422-56-1411
〒180-8621 東京都武蔵野市吉祥寺北町4-12-18
Covers Musashino City, Mitaka City, Kodaira City, Higashimurayama City, Kiyose City, Higashikurume City as well as Nishitokyo City
Personal pension consultations are accepted at any pension office in Japan.
- 0422-47-8609
〒181-8517 東京都三鷹市下連雀4-15-18
Covers Musashino City, Mitaka City, Kiyose City, Higashikurume City as well as Nishitokyo City
- 042-450-3111
〒187-0002 東京都小平市花小金井1-31-24（東京都花小金井庁舎内）
Covers Kodaira City, Higashimurayama City, Kiyose City, Higashikurume City as well as Nishitokyo City
FAQ
Frequently asked questions
What is the phone number of the Nishitokyo City Office (Tanashi Building)?
The main phone number of the Nishitokyo City Office (Tanashi Building) is 042-464-1311. It connects you to an operator, who will transfer you to the right section once you explain what you need.
What are the opening hours of the Nishitokyo City Office (Tanashi Building)? What time does it open and close?
Opening hours of the Nishitokyo City Office (Tanashi Building): Weekdays 8:30–17:00. It is closed on Saturdays, Sundays, public holidays and over the New Year break (Dec 29 – Jan 3). Hours can differ by counter and service, so please check the official website for details.
Can I call the Nishitokyo City Office (Tanashi Building) on weekends or at night?
The main line is generally not answered outside opening hours. For non-urgent procedures and certificates you may be able to use online applications on the official website (https://www.city.nishitokyo.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Nishitokyo City Office (Tanashi Building)?
Nishitokyo City is covered by the Higashimurayama Tax Office (042-394-6811). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Musashino Pension Office (0422-56-1411); personal consultations are accepted at any pension office in Japan.
GOVERNMENT OFFICES
Phone numbers of tax offices, pension offices, Hello Work and public health centers
Main phone numbers, addresses and jurisdictions of the offices in Tokyo.
NEARBY
Other municipalities in Tama Area (Cities), Tokyo
- Hachioji City
- Tachikawa City
- Musashino City
- Mitaka City
- Ome City
- Fuchu City
- Akishima City
- Chofu City
- Machida City
- Koganei City
- Kodaira City
- Hino City
- Higashimurayama City
- Kokubunji City
- Kunitachi City
- Fussa City
- Komae City
- Higashiyamato City
- Kiyose City
- Higashikurume City
- Musashimurayama City
- Tama City
- Inagi City
- Hamura City
- Akiruno City
For staff of municipalities and public offices
We accept requests to correct or update the phone numbers, office hours, addresses and other details listed here. We check each request against the official website before updating.
The phone numbers, addresses and opening hours on this page are based on information published on each municipality's official website (last checked: October 7, 2026). Please check the official website for the latest information. This page compiles public information for the convenience of residents and does not indicate any business or partnership relationship between the listed municipalities and AIRI (LIVERUSH Co., Ltd.). If you find an error, please let us know via our contact form.
Tax office names, addresses, phone numbers and jurisdictions are based on the National Tax Agency's 税務署の所在地などを知りたい方 (checked October 19, 2026). Pension office names, addresses, phone numbers and jurisdictions are based on the Japan Pension Service's 年金事務所管轄区域 (checked October 19, 2026). Hello Work (public employment office) names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 全国ハローワーク所在案内 (checked October 19, 2026). Public health center names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 保健所管轄区域案内 (checked October 19, 2026).