The Invisible Cost of a Beautiful Home

What every homeowner in Miami's older neighborhoods should know, before it costs them.

We all love the visible upgrades. The new kitchen. The statement lighting. The 80-inch television mounted just right. And there is nothing wrong with any of it. A home should be a place you love.

Yet here is what I tell everyone I work with and it is the part nobody wants to hear: the smartest money you will ever spend on a home is on the things you cannot see until it becomes a problem and you don’t want to see this one in particular. And in Miami, one of those things is often right under your feet.

Do you even know if you are on septic?

A surprising number of homeowners don't. If your property isn't connected to county sewer, you're on a septic system, and in 2026, that comes with responsibilities most people ignore until they become expensive.

Now here is the “did you know” moment: There are still more than 120,000 septic systems in use across Miami-Dade County today. Why is that? Miami is still considered a young city, only 100 years.

It's common in many of our established single-family neighborhoods, the ones with larger lots and mature trees, including Pinecrest, Palmetto Bay, parts of South Coral Gables, Glenvar Heights and the pockets just west of US-1 off Killian, older sections of Kendall and South Miami, and the Redland, Cutler Bay, and Homestead.

One important note: septic is decided property by property. One home can be on sewer and the one next door on septic. So don't assume, always need to check. Miami-Dade County lets you look up your address online to see what you have.

Why it matters now more than ever moving forward.

As groundwater rises, Miami-Dade is moving homes off septic and onto county sewer. And here's the part that catches people off guard: once the county notifies you that a sewer line is available at your property, you're required to connect and abandon your septic system within 90 days. That's Miami-Dade County code, not a suggestion. Refer here for more information https://www.miamidade.gov/global/environment/ecosystems/septic-system-care.page

The cost? Connecting to sewer typically runs $10,000 to $15,000 or more, and a new advanced septic system can run $15,000 to $30,000 on average depending on the work, what has to get done, labor, etc. Always get a few quotes and ask questions.

Suddenly that gorgeous state-of-the art 80” TV feels like the easy decision but is it the right one if you are on septic?

The good news.

If you know where you stand before you're forced to, you have options, and there's county financial help most people don't know about, including grants and low-interest loans for eligible homeowners.

So enjoy your home. Buy the beautiful things. But take care of what's underneath first. That's the responsible part of owning a home, and it's the part that protects everything else and when deciding to sell, your potential buyer will be happy you did too.