# Act No. 47 of 2025: Act Partially Amending the Act on Building Unit Ownership, etc. to Facilitate Management and Revitalization of Aging Condominiums, etc.

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Every law on japanlaw.org that Act No. 47 of 2025 amends, and when each change takes effect; promulgated 30 May 2025.

- Number: 令和七年法律第四十七号 (令和7年法律第47号), Act No. 47 of 2025
- Title: Act Partially Amending the Act on Building Unit Ownership, etc. to Facilitate Management and Revitalization of Aging Condominiums, etc. (老朽化マンション等の管理及び再生の円滑化等を図るための建物の区分所有等に関する法律等の一部を改正する法律)
- Promulgated: 30 May 2025
- In Japanese: https://japanlaw.org/ja/acts/507AC0000000047
- Changes to Japanese law, by date: https://japanlaw.org/en/changes (as Markdown: https://japanlaw.org/md/en/changes)

## Act on Building Unit Ownership (建物の区分所有等に関する法律)

https://japanlaw.org/en/building-unit-ownership-act

- 30 May 2025: Since replaced.
- 1 April 2026: In force. 52 provisions changed · 265 provisions added · 1 provision removed · 6 provisions in the supplementary provisions · 2 articles renumbered. What it changes: https://japanlaw.org/en/building-unit-ownership-act/amendments/20260401_507AC0000000047; the law as amended, in Markdown: https://japanlaw.org/md/en/building-unit-ownership-act/amendments/20260401_507AC0000000047/text

## Local Tax Act (地方税法)

https://japanlaw.org/en/local-tax-act

- 30 May 2025: Since replaced.
- 28 November 2025: Since replaced.

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## Sources

- The dates and the amending law: e-Gov (Digital Agency) (2 records)
- English title of the amending law: Written for this site with AI
- English names of the laws: Japanese Law Translation, Ministry of Justice (2 records)