Generally speaking, design fees are calculated based on area (number of squares), and are charged according to the level of the designer. Designers of different levels have different charging standards. Generally, the fee is based on the square meter, ranging from 30 to 120, depending on the reputation of the designer you hire. In second- and third-tier cities, it is usually 45-80.

There are also companies that charge based on the number of drawings. They will sell as many drawings as you want, usually 35-70 per piece, and the more expensive ones are even higher. Such drawings generally require a floor plan. , the construction drawings will depend on which one you need. Generally, water and electricity, TV wall facade, or ceiling layout are required. If the construction is done together, the design fee can be discounted or completely free.