The short video posted to Twitter showed a dizzying time-lapse of the central library, with debris visible on the floor and chairs piled up in the middle of the room.
Comments on the post remarked how "depressing" they found it.
"This makes me so sad. I spent many, many hours here during my student days. I look forward to it reopening when I'll be able to share it with own children," wrote one person.
"Oh man this is actually just depressing," wrote another.
"I know it was shared with good intentions but I got depressed seeing the state of our once lovely library," said a third.
The council spokesperson who posted the video appeared disheartened by the response, replying "ah damn, not what I intended! Sorry".
An accompanying press release to the video detailed some of the reasons why the building looked slightly derelict.
"Staff of both the library and the café had only a few hours to say their farewells and leave so inside you can still see the remnants of its past inhabitants. Children's dress-ups, CD covers and old wooden library rolodexes sit patiently waiting to go their new home."
Over the next four years, the library will be strengthened by adding base isolators like that of Te Papa and modernised by expanding levels three and four.