Skip to content
LokalMatch

Condo Renovations

Condo Renovations near you

Renovating a condominium unit has an extra party in it. You own the unit, the association owns or controls the common elements, and the line between the two is drawn by the declaration recorded against the building rather than by anything you can see. In most buildings the drywall surface, the finishes and the fixtures are yours, while the structure, the exterior walls, the roof, the plumbing stacks and usually everything inside the walls belong to the association. That boundary decides which parts of your plan you may simply do and which parts need permission.

Tell us about your condo renovation project and we’ll help you find local condo renovation contractors who serve your area.

Free for homeowners · No obligation to hire

On this page

It also decides who pays when something goes wrong. Water leaving your unit and arriving in the unit below is the classic condominium renovation dispute, and the answer depends on the state's condominium act, on the declaration, and on how the loss happened. It is not the same in every state, and a contractor who tells you confidently how it works is telling you how it works in the buildings they happen to have worked in.

The practical sequence is association first, city second. An approval from the building department does not authorize you to alter a common element, and an approval from the board does not substitute for a permit. Budget time for both, and expect the association's process to be the slower of the two.

The declaration decides what is yours to change

Start by reading the recorded declaration, the bylaws and the rules, in that order, and identify the boundary of the unit as they define it. Everything past that boundary is a common element, and altering a common element is not a decision an individual owner gets to make. Florida's Condominium Act is a useful illustration of how firmly this is written: it provides that there shall be no material alteration or substantial additions to the common elements or to real property which is association property except in a manner provided in the declaration as originally recorded or as amended under the procedures provided in it, and that where the declaration is silent, 75 percent of the total voting interests of the association must approve the alterations or additions before they are commenced.

The same act also constrains what an owner may do inside the unit, providing that a unit owner shall not do anything within his or her unit or on the common elements which would adversely affect the safety or soundness of the common elements or any portion of the association property or condominium property which is to be maintained by the association. That is the provision behind every board refusal to allow a wall to be opened or a slab to be cut.

Florida's statute binds Florida condominiums. Your state has its own condominium act and your building has its own declaration, so use this as the shape of the question rather than the answer. What travels is the structure: a defined unit boundary, an approval threshold for altering common elements, and a general duty not to compromise what the association maintains.

The association's approval process, and what it will ask you for

Most associations run an alteration or architectural review process, and most of it is predictable. Getting the package right the first time is usually the difference between a two-week approval and a two-month one, because incomplete submissions wait for the next meeting rather than being corrected in place.

  • A written application describing the scope, with drawings for anything structural, plumbing-related or affecting a common element.
  • The contractor's license and a certificate of insurance, frequently naming the association as an additional insured.
  • A schedule with working hours, since many buildings restrict noisy work to weekday daytime and prohibit it entirely on weekends and holidays.
  • Arrangements for the freight elevator, for protecting corridors and lobbies, and for how debris will leave the building.
  • Confirmation of how water will be shut off, since isolating a riser usually affects a whole line of units and has to be scheduled and noticed.
  • For flooring changes, evidence that the assembly meets the building's sound requirements, which many declarations specify directly.
  • A deposit or escrow against damage to common areas in some buildings, refundable after a walkthrough.

Water damage to the unit below: how responsibility is usually allocated

This deserves care, because the allocation genuinely varies by state and by declaration and the internet is full of confident answers that are only true somewhere. What is broadly true is that condominium schemes separate two questions: whose insurance pays for the physical repair of each part of the building, and who bears the cost when the damage was caused by an owner's conduct.

Florida's statute shows one legislature's answer in unusually explicit terms. The association's property insurance must provide primary coverage for all portions of the condominium property as originally installed or replacement of like kind and quality in accordance with the original plans and specifications, and for all alterations or additions made to the condominium property, but must exclude all personal property within the unit or limited common elements, and floor, wall and ceiling coverings, electrical fixtures, appliances, water heaters, water filters, built-in cabinets and countertops, and window treatments. Unit owners are responsible for the cost of reconstruction of any portions of the condominium property for which the unit owner is required to carry property insurance or for which the unit owner is responsible. Where the damage results from intentional conduct, negligence or failure to comply with the declaration or the rules by a unit owner, family members, occupants, tenants, guests or invitees, that owner bears the cost.

Read that as a map of the questions rather than as your answer. Before renovation work starts, confirm three things in writing: what your own unit owner policy covers and what the association's master policy covers, what the association's deductible is and who pays it, and whether your contractor's liability insurance would respond to water damage in a neighboring unit. If your state or declaration allocates differently from Florida's, that is exactly why the question has to be asked locally.

Hard flooring and impact sound: the rule behind most flooring rejections

Replacing carpet with tile, engineered wood or luxury vinyl is the most commonly refused condominium alteration, and the reason is measurable rather than aesthetic. Seattle's adopted building code, reprinting the model text used across the country for multifamily buildings, requires floor-ceiling assemblies between dwelling units, or between a dwelling unit and a public or service area, to have an impact insulation class rating of not less than 50 where tested in accordance with ASTM E492, or a Normalized Impact Sound Rating of not less than 45 if field tested in accordance with ASTM E1007, with an engineering analysis comparing assemblies of known rating permitted as an alternative.

The practical consequence for a condo owner is that the assembly is not yours to redesign. A rated separation reaches its number as a whole — the studs, the layers of board, the resilient channel, the insulation, the sealant at every edge — so removing one layer or firing screws through a resilient channel into the framing behind it undoes the rating even though the wall still looks finished. If your scope touches a demising wall or the floor-ceiling assembly, ask the association for the tested detail before anyone opens it, and put the assembly back exactly as drawn.

That is the code floor, and many declarations set a higher number than the code does. What it means in practice is that the underlayment is not an accessory: the rated assembly is floor covering plus underlayment plus the structural floor together, and a product is only compliant in the assembly it was tested in. Ask for the test report for the specific assembly proposed in your building, not a general claim about the underlayment.

What usually cannot move in a concrete building

Condominium interiors look flexible and frequently are not, because the things that limit them are shared. The plumbing stack serving your bathroom serves every unit in the line, so moving a toilet more than a short distance runs into the fact that the drain has to fall toward a stack you are not allowed to relocate. In a building on a concrete slab there may be no space under the floor to run new drainage at all without raising the floor, which then conflicts with door heights and with the sound assembly.

The structure is the other limit. In a post-tensioned concrete building, tendons run through the slab under tension and cutting or core drilling into one is a serious structural event, which is why many associations require scanning and an engineer's sign-off before any penetration. Shear walls and columns are similarly not negotiable regardless of how non-structural they look under the drywall.

Mechanical and electrical capacity is the quiet third limit. The heating and cooling system may be a central one your unit merely taps, the ventilation may be a shared shaft that cannot take a larger bathroom fan, and the panel capacity for your unit may be fixed by the building's service. These are all answerable questions, and the time to ask them is before a designer draws a kitchen on the far side of the unit from where the services are.

The city permit is separate from the board approval

Board approval is not a permit and a permit is not board approval. The building department cares about the same things it cares about in a house, adjusted for the fact that you are in a multifamily building: structural changes, plumbing and electrical work, fire-rated assemblies, and sometimes the mechanical ventilation. Unpermitted work in a condominium is more likely to be discovered than in a detached house, because resale packages, association records and neighboring renovations all surface it.

There is one practical complication worth planning for. Some permit applications require the owner of record to sign, and where the work touches a common element the owner of record is the association. Find out early whether the management company will sign, what it needs in order to do so, and how long that takes, because it sits on the critical path and is not something your contractor can solve on the day.

What makes a condo renovation cost more than the same work in a house

The work itself is often simpler; the conditions are not. What adds cost in a condominium is access and logistics: everything arrives and leaves through a shared elevator on a booked schedule, working hours are restricted, corridors and elevator cabs need protection, and there is nowhere on site to store materials. Add the rated sound assembly under any hard flooring, any engineering or scanning required before a penetration, the association's review and any deposit it holds, and the time cost of coordinating a water shutoff that affects other people.

Describe the unit on LokalMatch: your ZIP code, the floor you are on, the approximate square footage, the rooms involved, and whether the association has already approved anything. Contractors who work in condominium buildings in your area receive the request and the interested ones contact you. They pay for the requests; homeowners pay nothing to use LokalMatch. LokalMatch does not carry out renovations, does not price them and does not vet, rank or endorse the contractors who get in touch, so confirming licensing, insurance and experience working under association rules is yours to do.

Condo Renovations: frequently asked questions

Do I need association approval to renovate inside my own unit?

Often yes, and the trigger is usually whether the work touches anything beyond the unit boundary defined in the declaration. Florida's Condominium Act, as one example, bars material alteration or substantial additions to the common elements except as the declaration provides, defaulting to approval by 75 percent of the total voting interests where the declaration is silent, and separately prohibits an owner from doing anything within the unit that would adversely affect the safety or soundness of the common elements or the property the association maintains. Your own state's act and your declaration set the actual rule.

Why won't the board let me put hardwood floors in?

Because of impact sound. The building code used for multifamily buildings requires floor-ceiling assemblies between dwelling units to have an impact insulation class of at least 50 when tested to ASTM E492, or a Normalized Impact Sound Rating of at least 45 if field tested, and many declarations require a higher figure than the code does. The rating belongs to the whole assembly rather than to the flooring, so the board is normally looking for a test report for the specific combination of floor covering, underlayment and structural floor proposed in your building.

If my renovation causes a leak into the unit below, who pays?

It depends on your state's condominium act, on your declaration and on how the damage happened, so this has to be answered locally. Florida's statute illustrates the structure: the association's policy covers the condominium property as originally installed but excludes floor, wall and ceiling coverings, electrical fixtures, appliances, water heaters, built-in cabinets and countertops and window treatments; owners are responsible for reconstruction of the portions they must insure; and an owner bears the cost where the damage results from intentional conduct, negligence or failure to comply with the declaration or rules by the owner, occupants, tenants or guests. Confirm your own coverage, the master policy deductible and your contractor's liability insurance before work starts.

Can I move my bathroom or kitchen to another part of the unit?

Sometimes, but the plumbing stack usually decides it. Drainage has to fall toward a stack that serves the whole line of units and that you are not permitted to relocate, and on a concrete slab there may be no depth available to run a new drain without raising the floor. Raising the floor then conflicts with door heights and with the rated sound assembly. Ask where the stacks are and what fall is available before any layout is drawn.

Do I still need a city permit if the association approves the work?

Yes. They are separate approvals answering separate questions. The association is enforcing the declaration and protecting the common elements; the building department is enforcing the code. Note also that some permit applications require the owner of record to sign, and where the work touches a common element that owner is the association, so ask the management company early whether and how it will sign.

Why do condo contractors charge more than for the same job in a house?

Access and scheduling, mostly. Materials and debris move through a booked freight elevator, working hours are restricted by the building's rules, corridors and elevator cabs need protection, there is no on-site storage, and a water shutoff affects neighbors and has to be scheduled and noticed. Add the rated underlayment under any hard flooring, any scanning or engineering required before drilling a concrete slab, and the time spent in the association's review process.

Sources

  1. Florida Statutes section 718.113: maintenance, limitation upon improvement
  2. Florida Statutes section 718.111: the association (insurance provisions)
  3. City of Seattle: 2021 Seattle Building Code, Chapter 12, Interior Environment

Written by the LokalMatch editorial team. Last reviewed September 21, 2026. How we write and check our guides

Find condo renovation contractors by city

Alaska

Show 1 cities

California

Show 186 cities

Florida

Show 82 cities

Maine

Show 1 cities

Texas

Show 79 cities

What affects the cost of condo renovation

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Size and scope of the project
  • Structural changes, such as moving or removing walls
  • Plumbing, electrical and HVAC work involved
  • Finishes and materials chosen
  • Design, drawings and permits
  • Condition of the existing house once it's opened up
  • Access to the site and the timeline

How to compare condo renovation contractors before you hire

  • Look for a contractor who has finished projects similar in size and type to yours, and ask to see them.
  • Get a written contract with the scope, the payment schedule, the timeline and how changes will be priced.
  • Ask who will manage the job day to day and how often you'll get updates.
  • Check that they carry liability insurance and workers' compensation coverage, and that their trades are licensed where required.
  • Compare quotes on the same scope, and ask what each one leaves out.
  • For structural changes, make sure an engineer or designer is involved where needed.

Questions to ask condo renovation contractors before you hire

  • Who will pull the permits, and who will be there for inspections?
  • Which parts of the job will you do yourselves, and which will go to subcontractors?
  • How do you handle change orders and unexpected problems once walls are open?
  • What is the payment schedule, and what is each payment tied to?
  • Can you show me proof of liability insurance and workers' compensation coverage?
  • What warranty do you offer on your workmanship, and is it in writing?
  • Can I speak with a few of your recent clients?

Condo renovation permits and local rules

Some condo renovation work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

Ready to get condo renovation quotes?

Tell us about your condo renovation project.

Do you offer condo renovation services?

Join LokalMatch to get matched with homeowners in the areas you serve.