Most renovation projects in South Florida towers fail for the same reason. The owner designs the apartment they want, submits it to the board, and discovers that a third of the scope was never theirs to change.
The problem is not the board. It is that a condominium is not one property. Under Florida law it is three different categories of space, with three different sets of rules, and they do not follow the walls you see. Understanding which zone each part of your project falls into, before design begins, is the difference between a smooth approval and a project redesigned twice.
This is a planning guide for owners, not legal advice. Your declaration of condominium governs, and declarations differ from building to building.
The three zones
Zone 1. Your unit
The airspace and finishes inside your boundaries, as defined by the declaration. Typically the finished surfaces of walls, floors and ceilings inward.
Generally yours to change: cabinetry, millwork, finishes, non-structural partitions, plumbing fixtures within existing locations, lighting on your own circuits, flooring subject to sound rules, appliances, interior doors.
The critical exception, and it is in the statute: a unit owner may not do anything within the unit that would adversely affect the safety or soundness of the common elements or of any portion of the property the association maintains. In practice that means anything touching structure, the building envelope, or shared systems stops being a private decision the moment it leaves your finishes.
Zone 2. Limited common elements
Elements that serve only your unit but are not part of it. In a South Florida tower these are almost always the balcony, terrace and any private patio, and often the windows and sliding doors themselves.
This is where owners are most often surprised. You are the only person who uses your balcony. You still generally need board approval to change it, because you do not own it.
Zone 3. Common elements
Everything else: the structure, the façade, corridors, risers, the roof, the lobby, amenity spaces.
Changing these is not a unit-owner decision at all. Under Florida Statute 718.113, there can be no material alteration or substantial addition to the common elements except as the declaration provides. If the declaration is silent, 75 percent of the total voting interests must approve before the work begins.
What makes an alteration "material"
The working definition applied in Florida is that an alteration is material if it changes the original design, form or function of the common elements in a noticeable way.
That word "noticeable" does a lot of work. Replacing something with an identical component is maintenance. Replacing it with something that looks or functions differently is a material alteration, even when the change seems small and even when it is an obvious improvement.
This is why balcony projects get rejected. New balcony flooring in a different colour, a different railing profile, an added planter wall, an outdoor kitchen, a different ceiling treatment: each changes the appearance of the building from the outside. From the street, the façade now has one balcony that does not match.
The rule that governs the façade
In a luxury tower, the single most reliable predictor of whether something will be approved is whether it is visible from outside the building.
Boards protect visual uniformity because it is directly tied to property values, and because the declaration usually requires them to. Expect resistance or refusal on:
- Balcony flooring visible through or over the railing
- Railing or glass balustrade changes of any kind
- Anything mounted to the exterior face of the building
- Window film, tint or interior treatments that read differently from the street
- Planters, screens, pergolas or shade structures on a balcony
- Exterior lighting, including anything that shows through the glazing at night
- Air conditioning or ventilation penetrations
- Different window or slider frame colours or profiles
The design consequence: in a tower, the balcony is best treated as furniture and textiles rather than architecture. Loose furniture, planters that are not fixed, rugs rated for exterior use and lighting that is not attached to the building achieve most of the effect with none of the approval risk.
Structure: the line that never moves
No declaration anywhere permits a unit owner to alter structure. In a concrete tower this includes more than owners expect:
- Slabs. Core drilling for plumbing or electrical is heavily restricted and in many buildings
prohibited outright. Post-tension slabs, common in towers built from the 1970s onward, contain tensioned cables that cannot be cut without catastrophic consequence.
- Columns and shear walls. Frequently concealed inside what appears to be an ordinary partition.
A wall you assume is drywall over studs may be the thing holding the building up.
- Beams and drop ceilings concealing structural elements.
- Load-bearing partitions, which exist in some older buildings even where the tower is
predominantly frame-and-slab.
The practical rule: a wall inside your unit is not automatically removable. Before any layout change, the structural drawings need to be reviewed. Most boards require an engineer's letter confirming that nothing structural is being altered, and this is the single most common reason renovation applications are rejected.
Shared systems: plumbing, electrical, HVAC
Plumbing
You can generally change fixtures. Moving them is a different question.
Waste lines run to vertical risers that serve every unit in the stack. Relocating a toilet, a kitchen sink or a shower drain means changing the connection to a shared system, and in a post-tension slab it may be physically impossible to route the new line.
This is why kitchen and bathroom relocations are the most expensive change in a tower renovation, and why the honest answer is often that the fixture stays where it is and the design works around it. Good design in a tower is frequently a matter of resolving a plan around fixed points rather than moving them.
Electrical
Your panel is yours. The feeder to it is not. Increasing capacity means touching building infrastructure, which requires approval and sometimes is not available at all, because the building's service was sized decades ago.
This matters more now than it used to. Induction cooking, wine storage, EV charging, home automation and steam showers all add load. A high-end kitchen specification can exceed what the existing service to the unit will carry.
HVAC
Replacement within the same footprint is usually straightforward. Anything requiring a new penetration, a relocated condenser or a change to the building's ventilation is a common-element question.
Sound: the rule that quietly kills flooring schemes
Almost every South Florida tower specifies a minimum sound rating for hard flooring, expressed as an IIC or STC value, and requires an approved underlayment.
Owners routinely select a stone or large-format porcelain floor, then discover that the required acoustic assembly adds height. That extra height has to be resolved somewhere:
- Against the entry door, which may no longer clear
- At the slider track, where the transition can become a trip hazard
- Against existing millwork and appliance openings
- Where flooring meets a neighbouring material
Resolve the flooring assembly before finalising anything that meets the floor. It is a millimetre problem that becomes a joinery problem, and joinery is expensive to change late.
What is almost always approved
It is worth stating plainly, because the constraints above can read as if nothing is possible. In a typical luxury tower, the following rarely encounters resistance:
- Kitchens rebuilt in place, including full millwork, stone and appliances
- Bathrooms rebuilt in place
- All interior finishes, wall treatments, plaster and paint
- Custom millwork and joinery throughout
- Interior lighting design on existing circuits
- Non-structural partition changes, with an engineer's letter
- Flooring, with compliant acoustic underlayment
- Closets and dressing rooms
- Media rooms, offices and wine storage within the unit
- Window treatments that read consistently from outside
This is a very large scope. A tower apartment can be transformed completely without touching a single restricted element. The constraint is not on ambition, it is on where the ambition is directed.
Broward, and why the county matters
Miami-Dade and Broward both sit in the state's High Velocity Hurricane Zone, which governs windows, doors and anything penetrating the envelope. Both counties run building recertification programmes, though on different schedules.
For a renovation the practical difference is administrative rather than philosophical: permit processes, inspection requirements and recertification timing differ. Confirm which county's process applies before building a schedule, particularly for owners with property in both, which in this market is common.
The sequence that avoids redesign
1. Get the declaration and the rules before design starts. Specifically the section defining unit boundaries and the section listing limited common elements. These two passages determine what is possible.
2. Get the structural drawings. Which walls are structural, and is the slab post-tensioned. This governs layout and plumbing.
3. Establish where the building is in its recertification cycle. Miami-Dade now requires recertification at 30 years, or 25 within roughly three miles of the coast. If envelope work is coming, hold the envelope-adjacent scope.
4. Confirm the sound requirement and the resulting floor build-up. Before specifying anything that meets the floor.
5. Confirm electrical capacity against the specification. Before committing to the kitchen.
6. Then design. With every constraint known, a design can be developed once, submitted once, and approved once.
Owners who follow this order tend to be approved on the first submission. Owners who design first tend to submit twice.
The short version
| Zone | What it covers | Who decides |
|---|---|---|
| Your unit | Interior finishes and non-structural elements | You, with board approval of the scope |
| Limited common elements | Balcony, terrace, usually windows and sliders | The board |
| Common elements | Structure, façade, risers, shared space | The association, per statute |
Nothing structural. Nothing that changes the building's appearance from outside. Everything else is usually available, and it is more than enough to transform an apartment completely.
Planning a renovation in a South Florida tower?
Send us the building and a description of what you have in mind. We will tell you which parts of the project sit inside your unit, which will need the board, and which are worth designing around instead of fighting for.
This article is renovation planning guidance, not legal advice. Your declaration of condominium governs and declarations differ between buildings. Confirm your building's specific requirements with your association and, where structure or shared systems are involved, a licensed engineer.
Jorge Castillo Design designs high-end residential interiors across South Florida, including condominiums and penthouses in Miami, Miami Beach and Fort Lauderdale.