In addition, medium or small the capital actual strength of the company won't be very strong, assumed operation cost is not high, in be being added, small investor also cannot stand office building is empty the cost with buy too high period, so investment objective had better buy content to be in charge of cost to be in 4 - 8 yuan / square metre / second class office building of the month; In large company and the capital actual strength that invest a guest greatly are stronger, they more the quality that those who take a fancy to is property management, accordingly, investment objective can buy administration fee to be in 25 - 30 yuan / square metre / the first class office building between the month.