About plan such as long-term excellent house construction

About "report that construction of house based on plan such as authorized long-term excellent house construction was completed", we start electronic application acceptance by "Yokohama-shi electronic application, report system".
For more information, please refer to the following link.

The Act on Promotion of the Promotion of Long-Term Excellent Houses (hereinafter referred to as the “Long-Term Excellent Housing Law”) has been revised and revised.
It came into effect on February 20, 2022 and October 1, 2022.

●Major changes accompanying the revision of the Long-Term Excellent Housing Law on October 1, 2022
　①Establishment of a certification system for existing houses that do not involve building activities
　　We will create a system that enables high-quality existing homes to be certified (certified only by the conservation plan) without extension or renovation.
　②Strengthen energy-saving measures and review wall volume defaults
　　Energy saving standards shall be equivalent to ZEH, and the insulation performance grade 5 and primary energy consumption grade 6 of the housing performance labeling system shall be set.
　　With the weight of wooden buildings due to the installation of insulation and energy-saving equipment, standards for structural safety such as the required amount of walls will be established.
　③Rationalization of standards for apartment houses, etc.
　　It is rationalized by reviewing standards such as scale standards and long-term use structures.

About the details about law revision, please see Ministry of Land, Infrastructure, Transport and Tourism homepage (outside site).

●Major changes accompanying the revision of the Long-Term Excellent Housing Law on February 20, 2022

[Information Materials] (February 20, 2022) Main changes accompanying the revision of the Long-Term Excellent Housing Law (PDF: 309KB)

[mail correspondence]　
For procedures that do not involve payment of fees, we will accept and return by mail.

In addition, the return of duplicates, certification notices, etc. will be mailed.
(For details, please refer to the mail correspondence such as notification.)

※Please note that we do not accept mail as before for applications for certification involving payment of fees.

[Contact Reception hours]
※Please come to the counter at the following time.
8:45～11:30、13:00～16:30

Consultations are also accepted by e-mail, etc., so please use them.
Email address: kc-chouki@city.yokohama.lg.jp

• R06.06.03 About the start of electronic application of long-term excellent house completion report
• R04.10.01 Outline (PDF: 252KB) about Yokohama-shi "law about promotion of spread of long-term excellent house"I have revised it.
• R04.02.20 We revised summary about Yokohama-shi "law about promotion of spread of long-term excellent house".
• R03.03.01 seal on the application form is no longer needed. Also, the power of attorney seal shall not request it. (Please determine the necessity of seal between the delegates and the delegates.)

１．Overview of the system and benefits of certification

２．Certification standards, etc.

３．About application for certification

４．Procedures for changes, decision of transferee, etc.

５．Report of completion

６．Other procedures

Long-term Excellent Housing Q&A

Maintenance of long-term excellent housing conservation

Certification application fee, etc. (from October 1, 2022) (PDF: 558KB)

• Ministry of Land, Infrastructure, Transport and Tourism Long-Term Excellent Housing Law-related Information Page (outside site)
• Page of Association of Housing Performance Evaluation and Indication (outside site)
• Consultation counter about authorization of plan such as long-term excellent house construction (association of house performance evaluation, indication) (PDF: 98KB)

Building Environment Section, Building Planning Division, Housing and Architecture Bureau Building Guidance Department
Location: 10 25th floor north side of 6-50 Honcho, Naka-ku, Yokohama

Phone number: 045-671-4526 (08:45～12:00、13:00～17:15)
※We have compiled the contents of frequently asked questions in Q & A, so please use them.

Email address: kc-chouki@city.yokohama.lg.jp