Commercial Building Design
Design fees for Commercial Building
This page provides the following explanations for those who are looking to build or renovate a Commercial Building.
Please refer to another page for service overview, design flow, and design projects.
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Design plan of Commercial Building
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Concept Design fee for Commercial Building
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Design & Supervision fee for new building of Commercial Building
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Business details for new Commercial Building design fees
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Design fees for interior & store design of Commercial Building
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Interior & store design work for Commercial Building
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Construction costs of Commercial Building
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How to estimate construction cost for Commercial Building
Concept Design fee for Commercial Building
Flow from design to completion (upper figure)
The above diagram is a rough flow from the start of planning to the completion of the building.
You can check the rough plan first with a low cost by Concept Design before design supervision contract.
In Concept Design, you can find out the following.
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How much volume can be built on the site
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Floor plan
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Approximate Estimated Construction Cost
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Total Design & Supervision Fee
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Schedule from start to completion
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Realization possibility for desired building
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Images for exterior & interior
You will be charged for Concept Design, and its amount will be charged depending on the requests.
We will undertake according to the customer's required drawing contents.
Design & Supervision fee for new building of Commercial Building
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The above is the charge for the design supervision plan . For other plans, please request a quote.
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The design and supervision fee for new construction of hospitals & clinics depends on the construction area (㎡) . It is not the total floor area.
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We don't use a calculation method of what percentage of construction cost.
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Design & supervision fee above is for one building. In the case of an annex, a discount will be applied and a separate estimate will be given.
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We will show you specific amount of design & supervision fee at Concept Design phase that construction area has been decided in. Please think fee above is base amount.
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The above price includes 10% consumption tax.
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It is a building design supervision fee in Japan. Please contact us as we will quote separately for overseas projects.
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The above is the design supervision fee. It is not the construction cost (construction cost).
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If you make a design & supervision contract with us after Concept Design, the Concept Design Fee will be free and will be included in the total design fee.
*On Augast 27, 2020, we revised the hotel design supervision fee and lowered the price.
*In order to improve work efficiency, the price is set about 25% lower than the design fee of a major design office.
Business details for new Commercial Building design fees
The work content included in the design supervision fee of a newly built Commercial Building is as follows.
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Architecture and interior design (concept design, schematic design, detailed design)
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Construction supervision (check and confirm on site whether the our design is properly constructed)
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Equipment design
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Structural design
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Correspondence of government office, fire fighting (confirmation application, inn business law, fire fighting law, ordinance and other regulations)
In the case of new construction, it is a small amount compared to the design supervision fee and construction cost, but the following expenses are also charged separately.
Confirmation application It is possible to introduce inspection bodies, surveying companies, and ground survey companies.
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Expenses paid to the inspection agency for confirmation application → Payment to the inspection agency
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Expenses for surveying the site → Payment to the surveying company
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Ground survey cost on site → Please pay to the ground survey company
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Transportation and accommodation costs if far from Tokyo (if it takes)
Design fees for interior & store design of Commercial Building
Interior & renovation design supervision fee for Commercial Building
= Construction cost X Design fee rate (%)
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The above is the charge for the Design & Supervision Plan . For other plans, please request a quote.
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The design supervision fee for interior design and renovation is the construction cost x design fee rate (%).
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It is not a calculation method based on the construction area.
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The specific amount will be announced at Concept Design phase, so please consider the above as a guide.
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It is a design supervision fee in Japan. Please contact us as we will quote separately for overseas projects.
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If you make a design & supervision contract with us after Concept Design, the Concept Design Fee will be free and will be included in the total design fee.
Interior & store design work for Commercial Building
The contents of work included in the interior design fee for Commercial Building are as follows.
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Interior design (concept design, schematic design, detailed design)
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Construction supervision (check and confirm on site whether the designed one is properly constructed)
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Facility design
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Correspondence of government office, public health center, fire fighting (response to confirmation application, fire fighting law, ordinance and other regulations)
In the case of interior design and renovation, the following costs will be charged separately.
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Building design performed as an architect's business (structural change, etc.)
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Structural calculation, equipment design, acoustic design → Mostly not required
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Design similar to art such as textiles, curtains, special lighting, walls, monuments
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Selection of small items such as works of art, decorations, exhibits, and tableware
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Logo design fee
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Transportation expenses and accommodation expenses if far from Tokyo (if required)
Construction costs of Commercial Building
Accurate Commercial Building construction costs (construction costs) are determined by this estimate after detailed design.
In the “ Flow from design to completion ”, it is the stage of “ 3 Quotation adjustment/confirmation application: this quotation/quotation adjustment ”.
We can give you an estimate of construction costs after planning and design, but the amount is not final.
We will estimate the estimated construction cost based on our abundant experience.
There are two major costs in constructing a Commercial Building: a design supervision fee and a construction cost.
Design supervision fees can be provided after Concept Design.
The design supervision fee is about 8-18% of the construction cost, so the "construction cost" accounts for the largest proportion of the plan.
It is very important to know the estimated construction costs of Commercial Building in advance, and it is possible to obtain them with simple calculations.
How to estimate construction cost for Commercial Building
Estimated construction costs for newly built Commercial Building are dependent on 1. Types of building structure 2. Construction area 3. Total Floor area.
The following is the standard for the construction cost of each structure per tsubo (1 tsubo is approximately 3.3 m2).
Includes not only the building itself but also interior work.
1. Unit price per tsubo depending on the type of building structure
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RC structure: 1.3 million yen ~/tsubo
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Steel structure (S structure): 1 million yen ~/tsubo
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Wooden: 800,000 yen ~/tsubo
2. Unit price per tsubo depending on construction area
The construction area is the floor area that is actually made. The total floor area does not include the area under the balcony or eaves.
The unit price per tsubo decreases as the size of the building increases and the construction area increases.
If the specifications are the same, the unit price per tsubo will be higher for smaller buildings.
3. Unit price per tsubo by region
In large metropolitan areas such as Tokyo, labor costs are high, so the unit price per tsubo is high.
The price per tsubo decreases as you go to rural areas.
If you contact us, we will confirm the unit price per tsubo in that region and let you know for free.
Please let us know the following matters when making inquiries.
Structural type (RC structure/steel frame/wooden structure)
Grade: want to keep it simple, give it a luxurious feel, etc.
Total floor area (if you know) →If you do not know, ask for Concept Design.