Yokohama Noise Regulations and Complaint Guide
Yokohama publishes household-equipment and music guidelines. These targets are not directly enforceable neighbor-noise limits.
Content reviewed: . Original research snapshot: 2026-10-27. Individual source capture and online-check dates are listed below.
Where to start
- For household noise, contact building management or the local consultation desk.
- For business or construction noise, use the official city or ward contact for the observed source.
- Keep incident times, duration, receiving location and any reference sound levels; retain a request number if one is issued.
City air/noise section + neighbor discussion: 045-671-2483; email mk-soudan@city.yokohama.lg.jp
For immediate danger, use local emergency services. For other incidents, follow the official page’s category and police-response instructions.
Rules by sound source
All times are local to Yokohama (Asia/Tokyo). Allowed work hours, restricted windows and periods when a standard applies have different meanings. Check zoning, holidays, permits and exceptions in the cited source.
general
Household equipment and music guidelinesOfficial guideline
家庭用機器・音響機器（指針値）
Provision: 横浜市生活環境条例第147条; 生活騒音防止に関する配慮すべき指針・別表1
Measurement point: Boundary of the property where the affected person lives
50 dBA
Low-rise residential — day
Standard period: Daily, 08:00–18:00
Area: 第一種低層/第二種低層/第一種中高層/第二種中高層住居専用
45 dBA
Low-rise residential — morning
Standard period: Daily, 06:00–08:00
Area: 第一種低層/第二種低層/第一種中高層/第二種中高層住居専用
45 dBA
Low-rise residential — evening
Standard period: Daily, 18:00–23:00
Area: 第一種低層/第二種低層/第一種中高層/第二種中高層住居専用
40 dBA
Low-rise residential — night
Standard period: Daily, 23:00–06:00 (ends the following day)
Area: 第一種低層/第二種低層/第一種中高層/第二種中高層住居専用
55 dBA
Other residential — day
Standard period: Daily, 08:00–18:00
Area: 第一種住居/第二種住居/準住居/その他
50 dBA
Other residential — morning
Standard period: Daily, 06:00–08:00
Area: 第一種住居/第二種住居/準住居/その他
50 dBA
Other residential — evening
Standard period: Daily, 18:00–23:00
Area: 第一種住居/第二種住居/準住居/その他
45 dBA
Other residential — night
Standard period: Daily, 23:00–06:00 (ends the following day)
Area: 第一種住居/第二種住居/準住居/その他
65 dBA
Commercial — day
Standard period: Daily, 08:00–18:00
Area: 近隣商業/商業/準工業
60 dBA
Commercial — morning
Standard period: Daily, 06:00–08:00
Area: 近隣商業/商業/準工業
60 dBA
Commercial — evening
Standard period: Daily, 18:00–23:00
Area: 近隣商業/商業/準工業
50 dBA
Commercial — night
Standard period: Daily, 23:00–06:00 (ends the following day)
Area: 近隣商業/商業/準工業
70 dBA
Industrial — day
Standard period: Daily, 08:00–18:00
Area: 工業
65 dBA
Industrial — morning
Standard period: Daily, 06:00–08:00
Area: 工業
65 dBA
Industrial — evening
Standard period: Daily, 18:00–23:00
Area: 工業
55 dBA
Industrial — night
Standard period: Daily, 23:00–06:00 (ends the following day)
Area: 工業
The city states these are guideline/target values, not direct regulatory limits. City does not arbitrate; it lends sound meters.
The 40/45 dB residential nighttime examples depend on zoning and concern the receiving property boundary. Management or consultation may be the practical next step.
Official sources and review context
Saved-source review and online retrieval are different checks. Some sites block automated retrieval; an unavailable recheck is shown below. Open the official source to confirm the current wording and any later amendments.
- 生活騒音防止に関する配慮すべき指針 (opens a new tab)
City of Yokohama
Capture/review note: 2026-10-27. Online check: 2026-11-01 — readable full text retrieved.
- 生活騒音とは？ (opens a new tab)
City of Yokohama
Capture/review note: 2026-10-27. Online check: 2026-11-01 — readable full text retrieved.
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