Where can I complain if I demolish or change the house structure without authorization?

If the owner transforms the building structure privately, he can report the situation to the urban construction department, and the urban construction department will stop it.

If you find illegal buildings, you can call 123 19 to complain.

123 19 is an urban construction service hotline, which is a special telephone number for public welfare services in the national construction industry determined by the Ministry of Construction and the Ministry of Information Industry, covering public transportation, water supply, gas, heating, illegal buildings and other aspects.

The main function of 123 19 is to receive industry complaints, consultation, suggestions and maintenance services. Among them, real estate includes: construction land, collective land, real estate development, real estate evaluation, real estate surveying and mapping, real estate brokerage, real estate property rights, pre-sale of commercial housing, sale of stock houses, housing rental market, lease management of public housing, poverty alleviation of low-rent housing, housing maintenance, community management, work of industry committees, maintenance funds, illegal construction, housing reform, renovation of old houses, house demolition, private property and geology.

Processing flow of 123 19:

1. Urban Construction 123 19 service hotline classifies and registers all kinds of calls received by citizens. For complaints, repairs and services, the receptionist shall notify the relevant departments and units to further implement the treatment according to the actual situation, and after the reply results are implemented, the receptionist shall call the public for a return visit.

Second, after the relevant units or responsible departments and units receive the business form forwarded by the urban construction 123 19 service hotline, they should reply to the caller in time according to the specified time and the requirements of the caller, and reply to the urban construction 123 19 service hotline.

3. Urban Construction 123 19 service hotline gives a clear answer to every call from the public. Give an immediate reply to consultation, inquiry and other service matters; For information that can't be answered immediately, wait for a clear result before replying. Complaints, services, repair services, urban construction hotline 123 19, after being handled by relevant departments and units, will pay a return visit to the respondents.

Illegal buildings mainly include:

1, a building built without application or approval and without obtaining a construction land planning permit and a construction project planning permit;

2, unauthorized changes in the construction project planning permit provisions of the construction of buildings;

3. Do not change the nature of the building;

4, after the construction of temporary buildings over the period of validity has not been removed into permanent buildings;

5. Buildings constructed by forging relevant materials to defraud the permission of the competent department.

Generally speaking, illegal buildings can be divided into two types: 1, and the builder cannot obtain the building permit because he has not obtained the land use right; 2. It is to build an illegal building on the land where you have obtained the land use right, that is, although you have the right to use the land occupied by the building to build houses and other buildings, you have built the building without obtaining a building permit.

Legal basis:

property management regulations

Forty-eighth real estate administrative departments of local people's governments at or above the county level shall promptly handle complaints from owners, owners' committees, property users and property service enterprises in property management activities.

Fiftieth owners and property service enterprises shall not occupy or dig roads and sites within the property management area without authorization, which will harm the interests of owners. Because of the maintenance of property or public interests, the owners really need to temporarily occupy or dig roads and sites, and shall obtain the consent of the owners' committee and the realty service enterprise; If it is really necessary for a realty service enterprise to temporarily occupy or dig roads and sites, it shall obtain the consent of the owners' committee. Owners and property service enterprises shall restore the roads and sites temporarily occupied and excavated to their original state within the agreed time limit.

Article 52

If the owner needs to decorate the house, he shall inform the property service enterprise in advance. The realty service enterprise shall inform the owners of the prohibited acts and matters needing attention in the house decoration.

Article 63

In violation of the provisions of these regulations, any of the following acts shall be ordered by the real estate administrative department of the local people's government at or above the county level to make corrections within a time limit, given a warning and fined in accordance with the provisions of the second paragraph of this article; The proceeds will be used for the maintenance of * * * parts and * * * facilities in the property management area, and the rest will be used according to the decision of the owners' meeting:

(a) unauthorized changes in the property management area in accordance with the planning and construction of public buildings and facilities;

(two) unauthorized occupation and excavation of roads and sites within the property management area, which harms the interests of the owners;

(three) unauthorized use of property * * * with parts, * * with facilities and equipment for business.

Individuals who commit one of the acts listed in the preceding paragraph shall be fined 1000 yuan or more and 10000 yuan or less; If a unit commits one of the acts listed in the preceding paragraph, it shall be fined between 50,000 yuan and 200,000 yuan.