Announced details
Real estate operations, rental housing vacancy listings, property viewing reservations, rental applications and rental management
Reduced burden of entering data multiple times
A business relationship in which Housing Plaza has used “Ii-seikatsu Rental Cloud” for some time and has now introduced and launched “Ii-seikatsu Square.” Capital and personal relationships are Not disclosed.
Based in Setagaya Ward, Tokyo, with Chō Shigeo (長茂雄) as president and representative director, the company operates real estate brokerage, management, sales and development businesses primarily in Setagaya and has 7 locations.
ISO/IEC 27001（ISMS）
ISO/IEC 27017（ISMS-CLS）
ISO/IEC 20000（ITSMS）
Housing Plaza: 7 locations primarily in Setagaya Ward, Tokyo
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
| Item | Details |
|---|---|
| Names of Products / Services Covered | いい生活 Square (property information distribution platform), Ii-seikatsu Rental Cloud (rental management platform) |
| Counterparty | 株式会社ハウジングプラザ |
| Counterparty overview | Based in Setagaya Ward, Tokyo, with Chō Shigeo (長茂雄) as president and representative director, the company operates real estate brokerage, management, sales and development businesses primarily in Setagaya and has 7 locations. |
| Relationship with the Company | A business relationship in which Housing Plaza has used “Ii-seikatsu Rental Cloud” for some time and has now introduced and launched “Ii-seikatsu Square.” Capital and personal relationships are Not disclosed. |
| Launch date | Information distribution had already begun as of the announcement on 18 September 2026; the specific start date is Not disclosed. |
| Applicable area | Real estate operations, rental housing vacancy listings, property viewing reservations, rental applications and rental management |
| Award/certification name | ISO/IEC 27001（ISMS）, ISO/IEC 27017（ISMS-CLS）, ISO/IEC 20000（ITSMS） |
| Location | Housing Plaza: 7 locations primarily in Setagaya Ward, Tokyo |
| Location scale | 7 locations |
| Quantitative Effects | Reduced burden of entering data multiple times |
Items this document does not state (8)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.To complete the process seamlessly from vacancy listings through applications and reduce the burden of entering data multiple times.