Build · Monroe County
ROGO · FEMA · HVHZ · DEP
Written, vetted, and updated
by Kate Baldwin
The field guide

Build in
the Keys.

Building in the Keys isn't like building anywhere else. Permits are limited, zones are real, and the home you sketch on a napkin won't always be the home the county lets you build. Here's the straight version.

Florida Keys waterfront build site
What you need to understand

Six conversations before you break ground.

/ 01ROGO

The Rate of Growth Ordinance

Monroe County limits new residential building permits through ROGO. Understanding the allocation system, the waitlist, and how existing tear-downs change the math is the first conversation.

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/ 02FEMA

Flood zones: VE, AE, X

Every lot has a zone — and that zone determines your base flood elevation, your foundation, and your insurance for the life of the home.

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/ 03Elevation

How high you must build

Base flood elevation plus Monroe County freeboard. What that means for ceiling heights, ground-level use, and views from the main floor.

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/ 04Hurricane code

Building for the wind

Miami-Dade HVHZ-grade impact glass, tie-downs, and roof systems. The right build now is the lowest insurance premium forever.

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/ 05Cost

What it actually costs

Per-square-foot ranges for the Lower, Middle, and Upper Keys — with the soft costs nobody quotes you up front.

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/ 06Docks

Dock permits & DEP

What’s permissible in your canal or open-water zone, which reviews trigger FDEP, and how to shape the build for the boat you want.

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The network

Architects, engineers, general contractors, surveyors, marine builders, insurance brokers — the right team is the difference between a two-year build and a five-year build.

I’ll introduce you to the professionals who know how to build in the Keys, not the ones who just say yes.

Let’s talk

Thinking about a lot?Let’s look at it together before you buy.