getting a permit to make renovations.
All renovations involving buildings older than 150 years protected by the Ministry for Cultura Heritage require a project written by an architect with a specific CV and a 5 years degree. It adds costs and time to the procedure since these renovation projects must be approved by architects working in an understaffed office. Nothing strange in an Unesco city that's 1,000 years old.
It's a fight between owners that want to make money from Venice, Elton-style billionaires who want to build a swimming pool inside a 500 years old palazzo and public officers whose only job is blocking this way of thinking from changing Venice into a theme park.
Describing it as something "Chaotic that should be simple" confirms my opinion about the author and the superficiality of anglo-saxon writers when they look at the rest of the world. Renovating Venice buildings can't be simple and it must not be simple, in a perfect world It should be quick, but there are always other offices that get public funding. Unsurprisingly, politicians do not get re-elected funding offices that prevent citizens and corporations from doing what they want with their real estate.
was amazed to learn from the article that Venice banned cruise ships from the Giudecca canal eight years ago, but they're still there because the ban isn't enforced
Save your amazement, there is no ban to enforce. In 2012, Rome's Government gave Venice port authority the power to enforce a ban if and when The authority wanted to do it. They basically gave un-elected technicians the power to block one of Venice's main source of income. Given the lack of alternatives to the Giudecca Canal Port Authority decided not to use the new power, but - as many in Rome arguably hoped - to use it as a mean of pressure on local politicians who want more and more ships to arrive.