One of the largest administrative scrivener corporations in Japan that handles permits, visas, and subsidies nationwide.

Updated: July 2025, 10

Are you having trouble calculating energy savings?

Energy saving calculation is a calculation that expresses the energy performance of a building.

When carrying out new construction, extensions, or renovations, energy saving calculations are required because the building plan is an "energy saving plan."

Application or notification is required by the Act on Improving the Energy Consumption Performance of Buildings. (Notification is required at least 21 days before the start of construction.) If you fail to submit notification, you may be subject to a fine of up to 50 yen.

<Case where energy saving calculation is required>

・New construction/extension/renovation of residential/non-residential properties

・Application for subsidy

In principle, all buildings will be required to comply with energy conservation standards due to the 2025 law revision.

From April 2025, in principle, all newly built homes and non-residential buildings will be required to comply with energy-saving standards, and more and more buildings will be examined for compliance with energy-saving standards as part of the building certification process, and buildings that do not meet energy-saving standards will be increasingly examined. If this happens, there may be a delay in the start of construction.

(Source) "From April 2025 (scheduled), all newly built residential and non-residential buildings will be required to comply with energy conservation standards" Ministry of Land, Infrastructure, Transport and Tourism

We will help you with the troublesome energy saving calculations.

We have a team specializing in energy saving calculations to assist you with energy saving calculations. We can handle everything from single-family homes, apartment complexes, small offices to large factories. In addition to energy-saving calculations, we have a large track record of supporting subsidies for energy-saving homes and equipment.

Price information

We offer energy saving calculation support starting from 4 yen. Please contact us for details.

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Advantages of requesting our company

1. Specialist staff will assist you.

It is difficult for busy business owners to properly interpret and apply unfamiliar laws.

As legal experts, we will reduce your burden.

2. Quick and reliable response

Our motto is speed.

We establish specialized teams for each project, and our systematized processes enable quick response.

We handle your applications swiftly and reliably.

3. Consultation is free

At our company, you can receive a free consultation before making a request.

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