1, users on the third floor are not allowed to use the shop roof on the second floor, which is illegal. Developers are not qualified to sell the roofs of shops on the second floor. The roof of the shop on the second floor is a public place, which can be used by residents of the whole building. Residents can use the roofs of shops on the second floor, but they have no right to change them, and they are not allowed to build any buildings on them without permission.

2. Legal basis: Article 5 of the Measures for the Administration of Residential Interior Decoration.

The following acts are prohibited in residential interior decoration activities:

(a) without the consent of the original design unit or the design unit with corresponding qualification grade, changing the main body and load-bearing structure of the building without authorization;

(2) Changing rooms or balconies without waterproof requirements into bathrooms and kitchens;

(3) expanding the original size of doors and windows of the load-bearing wall and removing the brick-concrete wall connected with the balcony;

(four) damage to the original energy-saving facilities of the house, reducing the energy-saving effect;

(five) other acts that affect the safety of building structure and use.

The term "building subject" as mentioned in these Measures refers to the structural structure of building entities, including roofs, floors, beams, columns, supports, walls, connecting nodes and foundations.

The term "load-bearing structure" as mentioned in these Measures refers to the main structural members and their connecting nodes that directly transfer their own weight and various external forces to the foundation, including load-bearing walls, uprights, columns, frame columns, piers, floors, beams, roof trusses and suspension cables.

2. What are the criteria for identifying illegal buildings?

1, without obtaining the construction project planning permit;

2, not in accordance with the provisions of the construction project planning permit for construction; '

3. Failing to obtain the rural construction planning permit according to law;

4, not in accordance with the provisions of the rural construction planning permit for housing construction.