What is a property management office? Can the property management house be rented without authorization?

No, the property management room is a single-function room and cannot be changed.

According to Article 63 of the Property Management Regulations:

In violation of the provisions of this Ordinance, without the consent of the owners' meeting, the realty service enterprise arbitrarily changes the use of the property management house, and the real estate administrative department of the local people's government at or above the county level shall order it to make corrections within a time limit, give it a warning and impose a fine of 6,543.8+0,000 yuan or more and 6,543.8+0,000 yuan or less; If there is income, the income will be used for the maintenance and conservation of parts, facilities and equipment used in the property management area, and the rest will be used according to the decision of the owners' meeting.

To sum up, even if there is spare space in the property management room, it cannot be changed without the consent of the owners' meeting. The owners' committee can directly report to the real estate administrative department (usually the Construction Bureau) the behavior of the property company renting the property management room privately.