Conventional ZEB
Focused solely on energy balance
- Energy reduction targets are the primary objective
- BEI compliance takes top priority
- Occupant comfort is often compromised
- Health and productivity are not evaluated
Moving beyond energy austerity to create spaces where people thrive — comfortable, healthy, and productive.
We go beyond conventional ZEB certification to put people first.
Uncomfortable environments reduce focus, affect health, and ultimately damage business performance. Comfortable workplaces support retention and productivity.
Productivity loss = business loss
Proper ventilation and humidity control help prevent infections and reduce absences. That lowers parental leave burdens and broader social costs.
Schools that feel better than home → lower social costs
Higher intellectual productivity
Appropriate thermal and lighting environments increase concentration and creativity.
Better quality of life
Stable indoor conditions reduce stress and support physical and mental well-being.
Responsibility for decarbonization
Minimize CO₂ emissions and help build a sustainable social foundation.
A resilience hub for the community
On-site generation and storage support continuity during disasters.
Lower life-cycle cost
Reduced utility bills compress total cost of ownership over the building lifecycle.
A more desirable asset
Strong BELS ratings improve tenant appeal and asset value.
We provide the right ZEB support for municipalities, private building owners, and designers.
Internal and external programs for municipal staff, elected officials, regional businesses, and designers to raise practical awareness of ZEB.
Develop retrofit plans that quantify CO₂ reductions, energy savings, budget implications, economic performance, and implementation schedules for existing public buildings.
We identify the most suitable subsidy scheme and support the full process from application documents to post-award administration and completion reporting.
We manage BELS registration, energy code compliance, BEI recalculation for design changes, and inspection support through completion.
We support design teams unfamiliar with ZEB by advising from the earliest stage, calculating BEI, and proposing concrete specifications.
We provide certification-oriented support from planning through completion and help maintain ZEB conditions when designs change.
From selecting the right subsidy program to final reporting, we support the full administrative process and internal decision-making.
We help private owners and their design teams understand what is required to achieve ZEB and provide the technical evidence needed for decisions.
For owned building portfolios, we visualize CO₂ reductions, savings, costs, economics, and implementation schedules for retrofit planning.
We support client presentations and internal training so your team can communicate ZEB value more clearly and confidently.
We support the design team by handling filings, design-change follow-up, and coordination through completion.
We support communication with owners and help manage the administrative burden of subsidy applications and completion reporting.
We calculate BEI from the schematic stage and provide specifications and calculation results that match ZEB requirements. Partial scopes are also accepted.
We provide concrete advice to keep the design aligned with ZEB goals from early planning onward.
We can jointly respond to public tenders and work together on retrofit plans for existing public buildings.
We strengthen proposal persuasiveness by supporting owner briefings and stakeholder training sessions on ZEB.
High-precision simulation and performance management to guarantee real results.
We build 3D models and run detailed annual simulations to optimize design decisions before construction begins.
We make sure designed ZEB performance is achieved and maintained through design, construction, completion, and operations.
Click each step to see the details.
Decide to pursue ZEB and plan with an estimated cost premium of around 10%. We provide early-stage advice on the design conditions that matter most for ZEB achievement.
Include ZEB targets in bid specifications, calculate primary energy consumption using the Standard Input Method, and propose equipment that achieves the target. Design changes are checked continuously.
After contractor selection, we verify that the selected systems still satisfy ZEB performance. If design changes occur during construction, we recalculate BEI and manage compliance.
Upon completion, we support formal ZEB certification through BELS registration and related energy code compliance procedures.
We help sustain energy savings and CO₂ reductions through BEI documentation, BEMS-based monitoring, analysis, and operational optimization.
We investigate existing performance and system conditions in detail to visualize the potential and challenges, including CO₂ reductions, savings, estimated costs, and economics.
We identify practical barriers such as cost-effectiveness, construction constraints, phased renovation strategies, and the feasibility of occupied-building renovation.
We develop the most realistic and effective retrofit plan. Comparing ZEB retrofit with standard renovation provides essential evidence for decision-making.
We support realistic construction planning, including occupied-building renovation, and verify that energy performance remains aligned with the design when changes occur.
We confirm that performance is preserved in as-built documents and support tuning, verification, and BEMS-based continuous improvement to balance comfort and efficiency.
Absolutely. A feasibility study is the first step in determining whether ZEB is viable and what the most realistic path forward looks like. Initial consultations are free of charge.
Yes. For new construction, we support planning, BEI calculation, and design advisory. For existing buildings, we cover feasibility studies, design support, construction-stage performance management, and operations.
For new construction, a rough benchmark is around 10% above standard cost. For existing buildings, the increment varies, but insulation and energy-recovery ventilation can enable HVAC downsizing and often improve life-cycle cost performance.
Yes. We support projects that use subsidy programs from the Ministry of the Environment, METI, MEXT, and others — from feasibility study through application, post-award administration, inspection support, and final reporting.
Yes. We accept partial scopes such as BEI calculation only, energy code compliance only, BELS registration only, or advisory support for teams unfamiliar with ZEB.
Yes. Occupied-building retrofit feasibility, closure ranges, timing, and phased renovation approaches are all examined as part of our feasibility study.
Building use, total floor area, location, year of completion for existing buildings, and the status of major building systems are especially helpful. Please feel free to contact us even if drawings or energy data are not yet ready.
Feasibility studies, design support, subsidy applications — we are ready to answer any question.