About design supervision fees
New construction work (Building No. 4)
・The design and supervision fee for new construction is 12% of the total construction cost.
・The minimum design fee is 3 million yen.
*1 Design and supervision fees include structural design costs.
*2 If equipment design is required, equipment design fees will be charged separately.
*3 Land surveying, ground investigation costs, and various application fees are not included in the design fee.
*4 We will consult separately for projects where the total construction cost exceeds 100 million yen.
*5 We will consult with you separately regarding buildings other than Building No. 4.
Repair/reconstruction work
・Design and supervision fees for renovation and reconstruction work are 20% of the total construction cost.
・The minimum design fee is 1 million yen.
*1 If construction related to seismic reinforcement or structural construction is performed, a structural design fee will be charged separately.
Store/interior design
・The design fee for store and interior design is 20% of the total construction cost.
・The minimum design fee is 1 million yen.
*1 If construction related to seismic reinforcement or structural construction is performed, a structural design fee will be charged separately.
Timing of payment of design fee
・First time: At the time of conclusion of design/supervision contract work (20%)
・Second time: Upon completion of basic design (20%)
・Third time: Upon completion of detailed design (30%)
・4th time: At the start of construction supervision (20%)
・5th time: Upon completion (10%)