Preparing for Heatstroke Without Increasing Burden on Craftsmen! Open House Architect Begins Heatstroke Countermeasures at Construction Sites Using Construction Management App "Architect Jump"

Open House Architect Co., Ltd. (Head Office: Nakano-ku, Tokyo; President and Representative Director: Mitsuo Nagai), a group company of Open House Group Co., Ltd. (Head Office: Chiyoda-ku, Tokyo; President and Representative Director: Ryosuke Fukuoka), will begin utilizing the "Heatstroke Safety Check Function" at detached house construction sites from July 1 (Wed), leveraging the entry/exit data from its in-house developed construction management app, "Architect Jump," in anticipation of this summer's record-breaking heat.

Delayed detection of heatstroke is a serious issue for the entire industry, not only at large construction sites but also at detached house construction sites. Therefore, Open House Architect has developed a system that links with the entry/exit records in the app used daily by craftsmen, conducting automatic safety checks three times a day for workers present at the site. Since reporting is completed with simple operations that do not require text input in response to notifications, it allows for integrated management from entry/exit to heatstroke checks as an extension of daily operations, without increasing the input workload at the site. The system will remotely protect the safety of craftsmen and promote "On-site DX" to prepare for heatstroke risks by notifying supervisors when there is no response.

Unique Features and Strengths of the "Heatstroke Safety Check Function"

By eliminating hurdles such as increased workload for craftsmen and the introduction of expensive dedicated devices, and by applying the mechanism of the existing construction management app "Architect Jump," which boasts a real-time update rate of 99% within the company, it can be introduced naturally within the existing workflow, achieving smooth site adoption. For partner companies, it also offers the advantage of covering everything from entry/exit to safety checks simply by registering craftsmen in the system, making it highly effective for labor management.

Automated Workflow

A smooth workflow is established through the sequence of Notification ➔ Automated Voice Navigation Dial ➔ Notification to Supervisor.

1 Real-time Linkage with "Entry/Exit Data"

When a craftsman records "Entry" on the smartphone app upon arrival at the site, the system automatically determines "who is currently present at which site."

2 Targeted Automatic Safety Checks Three Times Daily for Those Present

Instead of a mass broadcast to everyone, safety checks are automatically sent directly to the smartphones of craftsmen currently on-site, three times a day. (Note: The number of times and times can be set on the management screen).

3 Safety Management with "Zero Burden" for Both Craftsmen and Supervisors

If there are no health issues, craftsmen only need to tap a button in response to the notification, with no additional burden of inputting health status. If they feel unwell, they can immediately contact their supervisor, preventing heatstroke. If there is no response to the automated voice call, a notification is sent to the responsible site supervisor, enabling immediate phone contact.

Features of the Construction Management Platform "Architect Jump" Series

The construction management app "Architect Jump" and the web system "Architect Jump Pro" provide a mechanism for all stakeholders, including carpenters, craftsmen, partner companies, internal staff, and even real estate developers, to share site information in real-time.

Key Features

・Real-time Sharing of Progress, Schedules, and Photos: Stakeholders can instantly view information, eliminating information lag and improving business decision-making speed.

・Productivity Improvement through Centralized Management: Even for large projects with multiple buildings, schedules and quality can be grasped collectively, reducing the effort of reporting tasks and achieving de-personalization.

・Consideration for Ease of Use: With bar chart-style schedule displays, a simple UI, and smartphone optimization, it provides a smooth operating environment for anyone, anytime.

"Architect Jump" Explanatory Video: https://youtu.be/XHsfiyrlntE

※Reference: Past Major Press Releases

April 10, 2026: "TATETA," Delivering Construction Sites Through Animation, a New Experiential App from Open House Architect

October 16, 2025: "Architect Jump" Construction Management Platform Supported 13% Reduction in Construction Period; Free Provision to Real Estate Developers Who Commissioned Construction Begins

October 7, 2022: Construction Site Management App "Architect Jump" Receives "2022 Good Design Award"

About Open House Architect Co., Ltd.

As a company within the Open House Group, Open House Architect is a comprehensive construction company that handles both "wooden detached houses" and "mansion construction," which is rare in the industry. With a strength in building high-quality, affordable homes, it has expanded its supply from the Tokyo metropolitan area to Nagoya, Kansai, and Fukuoka. To date, it boasts a cumulative completion record of approximately 56,000 units and has earned strong trust from within and outside the group. To exceed the expectations of customers, the industry, and society, we aim to bring innovation to the world of construction together with our employees and partners.

Open House Architect Co., Ltd. Website URL: https://oha.openhouse-group.com/

Open House Group Co., Ltd. Website URL: https://openhouse-group.co.jp/

Open House Co., Ltd. Website URL: https://oh.openhouse-group.com/

Company Overview

Company Name: Open House Group Co., Ltd.

Head Office Location: JP Tower 20F (General Reception) & 21F, 2-7-2 Marunouchi, Chiyoda-ku, Tokyo 100-7020

Founded: September 1997

Representative: Ryosuke Fukuoka, President and Representative Director

Capital: 20,319.88 million yen

Number of Employees (Consolidated): 6,495 (as of the end of March 2026)

Company Overview

Company Name: Open House Architect Co., Ltd.

Head Office Location: Nakano Central Park South 15F, 4-10-2 Nakano, Nakano-ku, Tokyo 164-0001

Representative: Mitsuo Nagai, President and Representative Director

Capital: 101 million yen

Business Description: Construction contracting, design, and construction.