Environmental Integration Platform
ZEB, Results and Targets
Thinking About “Everything” / Response to the Environment, Response to Culture
We are working to realize “architecture as good environmental equipment”
under our unique
concept of “ZEmB” (Zero Emission Building + α).
“ZEmB”
Improving energy efficiency and reducing whole life carbon(*1),
Not only advancing technologies such as zero emissions(*2),
Taking it a step further,
It aims to consider all elements surrounding architecture,
integrating environmental considerations
with cultural and historical value,
aesthetics, and, above all, the health and comfort of people.
Indeed, we believe that an approach that envisions “everything” about architecture is essential.
Based on the above, Ishimoto Architectural Office aims to have ZEB projects
account for over 50%
of the design and consulting work orders received in fiscal year 2025.
ZEB Design Achievements for Fiscal Year 2023
7 projects over 2,000m²,
0 projects under 2,000m²,
and 0 projects under 300m².
7 projects over 2,000m²,
0 projects under 2,000m²,
and 0 projects under 300m².
- Whole Life Carbon
CO2 emissions generated outside of operation,
including those from transportation,
construction, maintenance, disposal,
and recycling of buildings.
- Zero Emission
An initiative to reduce waste emissions to nearly
zero through practices such as waste reuse.
FY2023 ZEB Results
Nearly ZEB | BEI 0.19
Joetsu funeral halls
Niigata
Crematorium ｜ Total floor area 2,384m² ｜
2 floors
ZEB Ready | BEI 0.44
Institute of Science Tokyo High School
Tokyo
School ｜ Total floor area 14,351m² ｜
5 floors
ZEB Ready | BEI 0.45 | BELS
Sendai City Hall
Miyagi
Office ｜ Total floor area 64,156m² ｜
15 floors plus 2 basement
ZEB Ready | BEI 0.49
Shunan Crematorium
Yamguchi
Crematorium ｜ Total floor area 4,062m² ｜
2 floors
ZEB Ready | BEI 0.50
Tokyo Kasei University 140th Anniversary Hall
Tokyo
School ｜ Total floor area 7,554m² ｜
10 floors
FY2024 ZEB Results
「ZEB」 | BEI -0.03 | BELS
Toyo Asano Corporation Headquarters Building
Shizuoka
Office ｜ Total floor area 1,339m² ｜
2 floors
Nearly ZEB | BEI 0.24 | BELS
RIX Cooperative Creation Center
Fukuoka
Office ｜ Total floor area 3,802m² ｜
4 floors
ZEB Ready | BEI 0.45 | BELS
Toray Industries, Inc. research center in Nagoya
Aichi
Office ｜ Total floor area 8,616m² ｜
3 floors
Other ZEB Achievements
「ZEB」 | BEI -0.31 | BELS
Dokkyo University Community Square
Saitama
School ｜ Total floor area 1,054m² ｜
1 floors
Nearly ZEB | BEI 0.25 | BELS
Nishigo Town Hall
Fukushima
City hall ｜ Total floor area 6,197m² ｜
2 floors
ZEB Ready | BEI 0.43 | BELS
Shimada City Office
Shizuoka
City hall ｜ Total floor area 11,976m² ｜
4 floors
ZEB Ready | BEI 0.45 | BELS
Hokkaido University Institute for Chemical Reaction Design and Discovery
Hokkaido
School ｜ Total floor area 5,613m² ｜
5 floors
ZEB Ready | BEI 0.47 | BELS
Yashio City Office
Saitama
City hall ｜ Total floor area 15,608m² ｜
4 floors
ZEB Ready | BEI 0.48 | BELS
STATION Ai
Aichi
Office ｜ Total floor area 23,615m² ｜
7 floors
ZEB Ready | BEI 0.49 | BELS
Sanco Yokkaichi City Station Building
Mie
Office ｜ Total floor area 17,088m² ｜
14 floors
ZEB Ready | BEI 0.50
Feasibility study on the use of local energy in Maizuru City
Kyoto
Gymnasium ｜ Total floor area 7,698m² ｜
2 floors
ZEB Ready | BEI 0.50 | BELS
Yamaguchi City Office
Yamguchi
City hall ｜ Total floor area 26,389m² ｜
7 floors
ZEB Oriented | BEI 0.62 | BELS
Ariake Medical Center
Kumamoto
Hospital ｜ Total floor area 23,992m² ｜
6 floors plus 1 basement
ZEB Ready | BEI 0.49 | BELS
Aoyama Gakuin Kindergarten
Tokyo
Kindergarten ｜ Total floor area 1,972m² ｜
2 floors
ZEB Achievements
| Projects | Use | Location | Total floor area | Floors | Completion | Rank | BEI | BELS |
|---|---|---|---|---|---|---|---|---|
| Dokkyo University Community Square | School | Saitama | 1,054m² | 1 | 2023 | 「ZEB」 | -0.31 | 〇 |
| Toyo Asano Corporation Headquarters Building | Office | Shizuoka | 1,339m² | 2 | 2025 | 「ZEB」 | -0.03 | 〇 |
| Joetsu funeral halls | Crematorium | Niigata | 2,384m² | 2 | 2024 | Nearly ZEB | 0.19 | |
| RIX Cooperative Creation Center | Office | Fukuoka | 3,802m² | 4 | 2024 | Nearly ZEB | 0.24 | 〇 |
| Nishigo Town Hall | City hall | Fukushima | 6,197m² | 2 | 2025 | Nearly ZEB | 0.25 | 〇 |
| Shimada City Office | City hall | Shizuoka | 11,976m² | 4 | 2023 | ZEB Ready | 0.43 | 〇 |
| Institute of Science Tokyo High School | School | Tokyo | 14,351m² | 5 | 2025 | ZEB Ready | 0.44 | |
| Sendai City Hall | Office | Miyagi | 64,156m² | 15plus 2basement | 2031 | ZEB Ready | 0.45 | 〇 |
| Toray Industries, Inc. research center in Nagoya | Office | Aichi | 8,616m² | 3 | 2026 | ZEB Ready | 0.45 | 〇 |
| Hokkaido University Institute for Chemical Reaction Design and Discovery | School | Hokkaido | 5,613m² | 5 | 2023 | ZEB Ready | 0.45 | 〇 |
| STATION Ai | Office | Aichi | 23,615m² | 7 | 2024 | ZEB Ready | 0.48 | 〇 |
| Yashio City Office | City hall | Saitama | 15,608m² | 4 | 2023 | ZEB Ready | 0.47 | 〇 |
| Sanco Yokkaichi City Station Building | Office | Mie | 17,088m² | 14 | 2025 | ZEB Ready | 0.49 | 〇 |
| Shunan Crematorium | Crematorium | Yamguchi | 3,762m² | 2 | 2025 | ZEB Ready | 0.50 | |
| Tokyo Kasei University 140th Anniversary Hall | School | Tokyo | 7,554m² | 10 | 2026 | ZEB Ready | 0.50 | |
| Feasibility study on the use of local energy in Maizuru City | Gymnasium | Kyoto | 7,698m² | 2 | — | ZEB Ready | 0.50 | |
| Yamaguchi City Office | City hall | Yamguchi | 26,389m² | 7 | 2027 | ZEB Ready | 0.50 | 〇 |
| Aoyama Gakuin Kindergarten | kindergarten | Tokyo | 1,972m² | 2 | 2024 | ZEB Ready | 0.49 | 〇 |
| Ariake Medical Center | Hospital | Kumamoto | 23,992m² | 6plus 1basement | 2023年 | ZEB Oriented | 0.62 | 〇 |
*4 others