Application for building confirmation for new No. 3 building (carport)
Updated: July 2026, 1
A carport is a type of building under the Building Standards Act.
When installing a carport, a building confirmation application is required in the following cases.
- When an extension or renovation of a certain area (10 square meters or more) occurs
- In the case of extensions, renovations, etc. in "fire prevention areas" and "semi-fire prevention areas"
Major home appliance retailers, home builders, renovation companies, residential equipment manufacturers, and other businesses that deal with carports receive many requests from customers to consult with them about building confirmation applications and to submit applications on their behalf.
However, for these business owners, application procedures are not their main business, and they have to carry out a large number of procedures on the side, which places a heavy burden on them.
In addition, carports and other structures will now fall under the category of "New Type 2025 Buildings" due to the revision of the Building Standards Act that will come into effect on April 4, 1. There is a possibility that the government will begin to inspect and provide guidance on the status of compliance with the revision.
We can handle all carport construction approval applications in one go.
table of contents
We take advantage of the economies of scale that we offer nationwide,
We offer low unit prices!
Recommended for people like this!
- Major construction companies, house manufacturers, and other businesses that handle a large number of carport installation-related tasks
- Those who want to complete the process with fewer companies rather than dealing with many different companies.
- Those who want to keep costs down
Benefits of Choosing Support Gyoseishoshi Law Firm
Suitable for large and medium-sized companies
We specialize in handling large-scale business procedures for large and medium-sized companies.
The larger the company, the more complex the process can become, with more and more frequent building confirmation applications and more partners (architectural offices, etc.); however, our company is able to handle even these complicated procedures simply and quickly.
Support provided by a team with extensive experience in building permit applications
Building permit applications are one of our specialities.
Our building confirmation application teams in our Tokyo, Nagoya, and Osaka branches work together to ensure that applications are processed quickly.
Fast Response
The application for building confirmation is a procedure that must be completed before construction begins. If the application is delayed, the installation of the carport will also be delayed.
Therefore, a sense of speed is important.
We can respond quickly with our specialized teams located at locations across the country.
In addition, we handle everything from preparing the documents to submitting the application, so you can focus on your own business.
Support menu
Reward table
| Support content | Remuneration amount (tax included) |
|---|---|
| Building confirmation application Basic charge(For detached houses/less than 30m²) | From 110,000 yen |
*If you make multiple requests (10 or more) per year to exterior contractors, house builders, renovation companies, etc., we also offer even more advantageous pricing plans.
| Option | Remuneration amount (tax included) |
|---|---|
| For areas over 30㎡ | +33,000 JPY~ |
| On-site preliminary survey (for Tokyo and 3 prefectures) | +33,000 JPY~ |
Warnings
- A separate fee will be charged to the application provider.
- The work is done online and does not include on-site/site-level inspections.
- In some cases, we may not be able to accommodate carport installations other than those for detached houses.
(factories, warehouses, offices, stores, etc.)
Client's voice
Major retailer
thoughts:
- I was looking for exactly this kind of service.
- When entering the carport sales business, the biggest obstacle was applying for building approval.
- It is difficult to find an architect to hire for each store, and it is difficult to find an architectural firm or application agency that can handle the entire country.
- We felt that this service was a perfect fit for our company, as it allows us to take advantage of the economies of scale that come with nationwide sales!
Individual carport buyers
thoughts:
- When I wanted to have a local construction company install a carport, they told me that I had to apply for building approval myself. I consulted with the local government, but they told me that it would be very difficult to apply for approval myself. I didn't know what to do, so I called the Support Administrative Scriveners' Office, and they explained the process in an easy-to-understand way.
- Also, after actually placing the order, I was informed that there were regulations that neither I nor the construction company were aware of, and that we needed to reconsider the type of carport itself. I was impressed that they didn't just go through the procedures, but also looked into it.
Process for issuing an inspection certificate (for businesses)
The procedures for building confirmation applications often differ depending on the jurisdiction, with different documents to be submitted, procedure flow, and instructions. Our company handles cases nationwide, taking into account the differences in procedures depending on the jurisdiction.
*Our corporation is an administrative scrivener corporation and is not a government agency (government agency).
FAQ
Do I need to apply for building approval for a carport?
If you meet the requirements described in the text, you must apply.
Even for carports for one car, most have a floor area of over 10 m1, so in most cases an application is required.
I heard that for a carport, the 1m at the edge does not need to be included in the area calculation. If the 1m at the edge is not included, the area will be less than 10m2, so I think a building confirmation application would not be necessary.
To answer the question in a nutshell, in most cases an application is required.
The need for a building confirmation application is determined based on the floor area (including the edge 1m).
The "building area" does not include the 1m at the edge (※).
Since this is not related to the "floor area" regulations, you should take into account the area of 1m at the edge before deciding whether or not to apply.
*In the case of building area, the 1m at the edge will not be included only if the building has a structure that is recognized as having a high degree of openness.
When considering the building coverage ratio, it is also necessary to confirm that this condition is met.
Is building approval the only procedure required to install a carport?
You must apply for a completion inspection and undergo the completion inspection.
We will also handle the application for the final inspection.
Also, depending on the local government, you may be required to apply for prior consultation before building confirmation, so you need to be careful.
In addition, other procedures may be required depending on the use of the land and regulations that apply to the land, so it is important to research the relevant laws, regulations, etc. in advance.
