On the outskirts of Miami, behind a wooden gate hedged by wild green bushes and leaning sea grape trees, sits Shawnee Chasser’s lush garden paradise. Her home comes complete with a treehouse, a swimming pool and a tiki-style hut.

But in this case, one woman’s personal Eden is a local government’s clump of unsafe structures.

In late August, officials in Miami-Dade County told Ms. Chasser, 65, that most of the structures on her one-third-of-an-acre lot would need to be demolished within the next 120 days. This was the latest step in a saga that began nearly a year ago, when someone called the county, complaining that the living areas on the property were unsafe.

Ms. Chasser, a self-described “barefoot hippie” who has been living outside for over two decades, will not go quietly. In fact, she said in an interview on Thursday, she’s planning not to go at all, “whether I’m going to chain myself to the treehouse or do it like they want me to do it.” Fixing things the county’s way would entail obtaining the correct permits for the property’s structures and bringing the plumbing and electrical wiring up to code.

In a statement relayed through a spokeswoman, Miami-Dade County government said the issue was about keeping the surrounding area safe: “Substandard construction and improperly running electricity and plumbing on a property present a hazard not just to those on the property, but also to neighbors.”