Implementation of Elevator-Integrated Autonomous Cleaning Robots at New Condominium 'Proud Tower Sagamihara Cross'

Key Points of This Press Release

1. This marks the first time among the collaborating companies that elevator-integrated autonomous cleaning robots have been introduced in a residential condominium development.

2. At Proud Tower Sagamihara Cross, cleaning robots capable of automatically coordinating with elevators to move between floors have been successfully implemented.

3. The introduction of cleaning robots aims to improve cleaning service quality and enhance the operational efficiency of cleaning staff.

Nomura Real Estate Holdings Co., Ltd. (Headquarters: Minato-ku, Tokyo; President & CEO: Satoshi Arai, hereinafter “Nomura Real Estate HD”), Nomura Real Estate Co., Ltd. (Headquarters: Minato-ku, Tokyo; President & CEO: Daisaku Matsuo, hereinafter “Nomura Real Estate”), Nomura Real Estate Partners Co., Ltd. (Headquarters: Minato-ku, Tokyo; President & CEO: Kazuhiro Tonda, hereinafter “Nomura Real Estate Partners”), TIS Inc. (Headquarters: Shinjuku-ku, Tokyo; President & CEO: Yasufumi Okamoto, hereinafter “TIS”), Okamura Corporation (Headquarters: Yokohama, Kanagawa; President & Executive Officer: Masayuki Nakamura, hereinafter “Okamura”), Eguchi Co., Ltd. (Headquarters: Minato-ku, Tokyo; President & CEO: Zen Eguchi, hereinafter “Eguchi”), Japan Otis Elevator Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President & CEO: Patrick Yong, hereinafter “Otis”), and J:COM Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President & CEO: Yoichi Iwaki, hereinafter “J:COM”)—collectively referred to as the “collaborating companies”—have jointly implemented elevator-integrated autonomous cleaning robots in the common areas of Nomura Real Estate’s newly constructed condominium, “Proud Tower Sagamihara Cross.” This is the first such initiative among the collaborating companies for a residential condominium.

This initiative aims to address future labor shortages by introducing “elevator-integrated autonomous cleaning robots” to improve the operational efficiency and productivity of cleaning staff, thereby achieving sustainable condominium management.

[Exterior of Proud Tower Sagamihara Cross (left) and cleaning robot STRIVER II (right)]

1. Operational Concept at Proud Tower Sagamihara Cross and Roles of Each Company

The cleaning robot autonomously boards the elevator based on pre-set cleaning zones in the robot management system and begins cleaning. After completing cleaning on one floor, it calls the elevator itself and moves to the next designated floor. It performs continuous multi-floor cleaning without human intervention, cleans the common corridors on each floor, and returns to its designated docking station upon completion.

※1: Cleaning Robot STRIVER II (Manufactured by Okamura, Distributed by Eguchi)

Following instructions from the robot management system, the robot uses elevators to move between floors and clean common corridors. It supports lateral movement and complex maneuvers and is equipped with sensor-based collision avoidance functions.

※2: Robot Management System: Multi-Robot Platform “RoboticBase®” (TIS)

Centrally manages multiple robots within the condominium, issuing commands for cleaning start and return, coordinating with elevators, managing cleaning schedules, real-time monitoring, and data collection.

https://www.tis.jp/service_solution/dxrb/

※3: Otis Gen3™ Elevator System (Otis)

A digitally connected elevator system capable of integration with the above robot management system. Following instructions from the robot management system, the robot operates the elevator doors and moves to the designated floor.

※4: Wi-Fi (J:COM)

Fiber-optic internet has been introduced to the property, and dedicated Wi-Fi routers for cleaning robots have been installed in the common corridors of each floor, contributing to stable inter-system connectivity.

[Cleaning Robot STRIVER II]

[Robot Management System Interface]

2. Expected Benefits from Cleaning Robot Implementation

The introduction of these cleaning robots is expected to deliver the following benefits:

- Enhanced resident satisfaction through stabilized cleaning frequency and quality in common areas

- Establishment of a sustainable condominium management system in anticipation of future labor shortages

- Replacement of approximately 60% of vacuuming area previously covered by cleaning staff with robots, reducing workload related to movement and repetitive tasks → Anticipated labor reduction of approximately 20% across overall cleaning operations

※The above figures are estimated values based on certain assumptions and are currently under evaluation for year-round operational performance.

The collaborating companies will continue to explore further applications based on insights gained from this initiative. Going forward, they will continue leveraging DX (digital technologies) to create living environments where people, buildings, and robots coexist, contributing to maximizing customer happiness and well-being.

[Proud Tower Sagamihara Cross Property Overview]

(As of May 2026. For the latest information, please visit the official website.)

Location

4-4-3 Sagamino 4-chome, Minami-ku, Sagamihara-shi, Kanagawa Prefecture

Access

4-minute walk from “Sagamihara” Station on the Odakyu Odawara Line, 4-minute walk from “Sagamihara” Station on the Odakyu Enoshima Line

Structure and Scale

Reinforced concrete (partially steel and SRC), 41 stories above ground, 3 basement levels

Site Area

10,186.49㎡

Number of Units

687 units

Floor Plans

1LDK to 4LDK

Private Area

32.66㎡ to 125.48㎡

Completion Date

Completed October 2025

Occupancy Start Date

Gradual move-in starting January 2026, aligned with sales schedule

Developer

Nomura Real Estate Co., Ltd.

Construction

Sumitomo Mitsui Construction Co., Ltd., Yokohama Branch

Official Website

https://www.proud-web.jp/mansion/f116160/

Customer Inquiry Desk

Proud Tower Sagamihara Cross Condominium Gallery (TEL: 0120-687-152)

Business Hours: Weekdays 11:00–18:00, Weekends & Holidays 10:00–18:00 / Closed: Every Tuesday, Wednesday, Thursday

[Reference]

⚫ September 15, 2023 Release: “Nomura Real Estate Announces 'Proud Tower Sagamihara Cross,' Tallest Condominium Along Odakyu Line” (Nomura Real Estate)

⚫ September 15, 2023 Release: “Nomura Real Estate HD and Okamura Begin Demonstration Experiment on Elevator Integration for Full-Building Cleaning Robot Utilization in Office Buildings” (Nomura Real Estate HD, Okamura)

⚫ February 16, 2024 Release: “Nomura Real Estate Introduces Metaverse Space for Individual Condominium Sales, Recreating Proud Tower Sagamihara Cross and Surrounding Area—First in Company History” (Nomura Real Estate)

⚫ November 6, 2024 Release: “Launch of 'Community Co-Creation' Urban Development in Sagamihara Area” (Nomura Real Estate HD, Nomura Real Estate)

⚫ June 16, 2025 Release: “Nomura Real Estate Launches Community Co-Creation Urban Development Project with Sagamihara Women's University: 'Sagamihara Quest'” (Nomura Real Estate)

⚫ January 19, 2026 Release: “'Proud Tower Sagamihara Cross' Completed and Occupancy Begins” (Nomura Real Estate)

⚫ April 30, 2026 Release: “J:COM Establishes 'Sagamihara Station Area Management' with Nomura Real Estate and Tully's Coffee Japan to Enhance Local Appeal and Vibrancy” (J:COM)