In the Qing dynasty, only those princes and nobles could be called luxury houses. For example, some monarch Baylor's works can only be called "Fu", and ordinary people who use "Fu" as a plaque without the permission of the royal family will be considered as seeking usurpation and will be beheaded. There were strict restrictions on the size of palaces and mansions. People will be punished if the foundation is too high or too many houses are built. Even many palaces can be called palaces because they have grades. It can be said that Wang Fu at that time was equivalent to a miniature version of the Forbidden City.
Although many dignitaries have been knighted, the place where they live still cannot be called a mansion, but a mansion. If they make a hullabaloo about, it's also illegal. Therefore, Li Hongzhang's abdominal muscles can never be called Li Fu. In people's impression, any other dynasty can be called a mansion as long as it is an ordinary person, so when Li Hongzhang's former residence was rebuilt, people hung up the plaque of Li Fu. This is actually caused by the ignorance of the restrictions of the Qing Dynasty, not Li Hongzhang's own ambition.
In fact, if Li Hongzhang dared to call his place "Li Fu" at that time, he might be killed the next day. How could a smart person like Li Hongzhang make such a mistake?