How much is the property cost of high-rise residential buildings higher than that of multi-storey residential buildings?

Abstract: Usually, the property cost of high-rise residential buildings is twice as high as that of multi-storey residential buildings, and some of them are even several times higher, which is fully recognized by the property authorities and price departments. This is an indisputable fact in the property management industry. However, in the specific work, there will still be questions from the owners, especially for the comprehensive property projects with both high-rise houses and multi-storey houses, the owners of high-rise houses often have dissatisfaction and complaints about "different charges under the same roof".