Waste Materials Become One-of-a-Kind Treasures! SDGs Workshop Held at Higashiyama Zoo and Botanical Gardens 'Spring Festival'

Open House Nagoya Branch, a group company of Open House Group Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director and President: Ryosuke Fukuoka), held the "Carpenter Experience with Waste Materials!? Making Original Wooden (Key) Holders with Colorful Nail Art" workshop at the "76th Nagoya City Higashiyama Zoo and Botanical Gardens Spring Festival" on Saturday, April 25th and Sunday, April 26th, 2026.

Higashiyama Zoo and Botanical Gardens is a place where many endangered animals are exhibited, and visitors can learn about the preciousness of life. Our company planned this event with the desire for children, who will lead the next generation, to feel closer to the SDGs through upcycling initiatives that breathe new life into "construction waste materials" that inevitably arise during the home-building process. In this workshop, we prepared wood designed with a "giraffe" motif, which is the main visual of the Spring Festival. Children challenged themselves to create one-of-a-kind original keychains by hammering colorful nails to resemble giraffe patterns.

Carpenter-like Nail Hammering Experience "Nail hammering guides" were used to ensure that even small children could work safely and smoothly. It was very impressive to see the children, holding hammers they rarely get to touch, earnestly hammering nails one by one. Exclamations of surprise like "Wood that was supposed to be thrown away can become so cute!" were heard, and scenes of parents and children happily discussing environmental protection and effective resource utilization were seen everywhere.

Our company will continue activities that leverage our perspective as a construction company. We will deepen exchanges with local communities and contribute to the vibrancy of the city and the creation of a sustainable society.

[76th Higashiyama Zoo and Botanical Gardens Spring Festival Open House Booth Overview]

Date: Saturday, April 25th and Sunday, April 26th, 2026, 9:00 AM - 4:30 PM (Park closes at 4:50 PM)

Location: Former Cherry Garden Plaza, Higashiyama Zoo and Botanical Gardens, 3-70 Higashiyamamoto-cho, Chikusa-ku, Nagoya City

Content: Limited to the first 300 participants, making wooden (key) holders using waste materials.

Higashiyama Zoo and Botanical Gardens Spring Festival Website URL: https://www.higashiyama.city.nagoya.jp/calendar/2026/02/76.html

About Higashiyama Zoo and Botanical Gardens Higashiyama Zoo and Botanical Gardens is a municipal zoo and botanical garden located within Higashiyama Park in Higashiyamamoto-cho, Chikusa-ku, Nagoya City, Aichi Prefecture. It opened in 1937. The vast park, covering approximately 60 hectares, includes a zoo (main and north gardens), a botanical garden, Higashiyama Sky Tower, and an amusement park, and is said to be one of the largest in Japan.

Higashiyama Zoo and Botanical Gardens Website URL: https://www.higashiyama.city.nagoya.jp/

< Company Overview >

Trade 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, Representative Director and President

Capital: 20,235,490,000 JPY

Number of Employees (Consolidated): 6,620 (as of end of September 2025)

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