It depends on the site area to be surveyed and the company you hire to conduct the survey, but if the site area is an area of a typical house, it is likely to cost around 70,000 yen to conduct the geotechnical investigation by "Method for screw weight sounding.”The cost may be said to be between 50,000 yen and 100,000 yen, but the consumption tax may be added separately to the cost.