Do I Need a Permit to Replace Windows in Miami-Dade?

Window replacement is one of the most heavily regulated pieces of residential work in Miami-Dade. That is not a bureaucratic quirk — Miami-Dade County established its High-Velocity Hurricane Zone (HVHZ) product-approval process after Hurricane Andrew, and every window and door installed in the county's HVHZ must be tested and approved for the local wind loads. In practice, that means almost every exterior window replacement in the county requires a permit.

This guide covers when a window permit is required in Miami-Dade, how impact window permits work, what documentation the building department expects, and the common pitfalls that delay approval. It applies generally to Miami-Dade, with similar considerations in Broward and Palm Beach counties.

When a permit is usually required

In Miami-Dade, a permit is typically required for: replacing any exterior window, whether one window or an entire home; changing the size of a window opening; changing from a fixed to an operable window (or the reverse); adding a new window opening; replacing impact-rated windows with non-impact windows (usually not allowed); replacing older windows with modern impact-rated units; and installing hurricane shutters as a permanent modification.

Even like-for-like replacement — same size, same opening, same manufacturer style — requires a permit because the installation must be inspected for compliance with the manufacturer's Notice of Acceptance installation instructions. Inspectors verify fastener spacing, embedment depth, and buck construction. This is not a paperwork exercise; it is enforcement of hurricane resistance.

When a permit may not be required

Interior window work is the narrow exception. Replacing a broken pane of glass in an existing window sash — where the sash and frame stay in place — is sometimes classified as maintenance and does not require a permit. Rebuilding or replacing the sash itself typically does. Interior partition windows, where no exterior envelope is affected, may also be exempt.

Storm shutters that are temporary and removed after each storm season generally do not require a permit. Permanent shutters, roll-downs, and accordion shutters that are structurally attached usually do require a permit and product approval.

Miami-Dade / South Florida considerations

The single most important document for a window permit in Miami-Dade is the Notice of Acceptance. Every window product installed in the HVHZ needs a current NOA showing which wind zones, exposures, and sizes it is approved for. The permit submittal must include the specific NOA numbers, and the installation must match the NOA's instructions. Product substitutions during construction almost always trigger a revision.

Wind-load calculations matter. The design wind pressure at your specific location — based on address, exposure category, and building height — has to match or fall inside the pressures the window product is approved for. High-rise condominium replacements often require professional engineering to demonstrate compliance, especially on upper floors or corner units.

Historic districts add design review. Coral Gables' Board of Architects, Miami Beach's Historic Preservation Board, and Coconut Grove's neighborhood preservation rules all care about window profiles, mullion patterns, and finish colors. A window that is code-compliant may still need a design change to be approvable in a historic district. Condominiums add association approval, and many buildings require unit owners to use a designated impact window product to keep the facade consistent.

Common mistakes that delay approval

The most common issue we see on window permits is expired or mismatched NOAs. Notice of Acceptance approvals expire, and using an older NOA for a submittal — or an NOA that does not cover the specific window size or configuration — is an automatic reject. The building department is looking for current, matching product data.

The second most common issue is incomplete elevation drawings. Building departments want elevations showing the existing and proposed windows, dimensions of every opening, and the design pressure at each opening. A photograph plus a product spec sheet is usually not enough. Missing fastener schedules and buck detailing are close behind — inspectors check these in the field, and departments check them at plan review.

Documents usually needed

A typical Miami-Dade window replacement permit includes: a completed permit application form; a plot plan or site plan showing the building; elevation drawings showing existing and proposed windows with dimensions; a window schedule listing each opening, product, and design pressure; the current Notice of Acceptance for each product; installation details showing fastener type, spacing, and embedment; wind-load calculations signed by a Florida-licensed engineer (often required); contractor license and insurance information; and, for condos or HOAs, association approval.

How South Florida Permit Pros can help

We coordinate impact window permits across Miami-Dade — from single-window replacements on Coral Gables homes to full-building impact retrofits in Aventura and Miami Beach high-rises. Our team verifies NOA validity, matches products to the design pressures at your address, prepares the elevation and detail package, files the permit, and coordinates inspections through final. If you have a quote from a window contractor and want to know whether it is ready for filing, a permit review confirms exactly what is missing before the submittal goes in.