How to write a notice when the owner's bedroom window is changed into a landing door?

How to write the notice that the owner's bedroom window was changed to the landing door? The property informed the owner to change the window to the door in violation of regulations. How to write it is highly praised by the district leaders: the owner illegally expanded the first floor on the second floor of Building No.1 of Ocean Future City 10, changed the window into a door, and installed a rain-proof structure on the upper part of the window, which affected the safety of the building. Violation of decoration regulations, according to the relevant provisions of the property management center, please correct and rectify the violations within days, that is, until the requirements of the property management center are met.