Condo Renovation in Ontario: Rules, Approvals, Costs

Quick answer

Renovating a condo in Ontario means working within two sets of rules: the Ontario Building Code and your condo corporation's declaration and bylaws. You can usually change finishes, cabinets, flooring, and non-structural elements, but you need board approval, and often an alteration agreement, for anything touching plumbing, electrical, structure, or common elements.

Board

Approval usually needed

Standard unit

Defines what is yours

Permit

For plumbing / electrical / structure

Weekdays

Typical work hours

What can you change in a condo?

In an Ontario condo, you own the inside of your unit but share the common elements. As a rule, you can renovate what is inside your unit boundary: kitchens, bathrooms, flooring, cabinets, paint, fixtures, and non-load-bearing walls. You cannot alter common elements, such as the building structure, exterior windows, balconies, or shared pipes and wiring, without permission. Your condo's declaration and its standard unit bylaw define exactly where your responsibility ends and the corporation's begins.

What needs condo board approval?

Most meaningful renovations need the board's sign-off, often through a written alteration agreement. Expect to need approval for:

Plumbing or electrical changes that connect to building systems
Moving or removing walls
New flooring, because most corporations require a sound-rated underlay to protect neighbours below
Anything that affects fire separation, ventilation, or common elements

Start with the property manager. Before you design anything, ask for the declaration, bylaws, and renovation rules. Knowing the requirements up front prevents redesigns and rejected applications later.

Do you still need a building permit for a condo?

Yes. Condo approval and a city building permit are separate things. You still need a building permit for the same triggers as a house: plumbing changes, electrical work through the ESA, and any structural or wall changes. Cosmetic updates in the same layout usually do not. We coordinate both the condo approval and the municipal permit. For the wider rules, see our building permit guide.

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Condo-specific challenges to plan for

The work inside a condo is similar to a house, but the logistics are what make condo renovations different. Plan for:

Elevator booking for moving materials and debris, often limited to certain hours
Work-hour and noise rules set by the corporation, usually weekdays only
Protecting common areas such as hallways, lobbies, and elevators
Water shut-offs that must be scheduled with the building
Parking and access for trades and deliveries

An experienced contractor plans around these from day one, which keeps the project on schedule and keeps you on good terms with the building.

How much does a condo renovation cost?

Room for room, condo renovations cost about the same as in a house, sometimes a little more because of restricted hours and the cost of moving everything through elevators and hallways. A condo kitchen or bathroom follows the same ranges as our kitchen cost guide and bathroom cost guide, with a modest premium for access and logistics. Getting an itemized quote that accounts for building rules is the best way to avoid surprises.

Frequently asked questions

Can I change the layout of my condo?

You can usually move or remove non-structural walls inside your unit with board approval, but you cannot alter structural walls, exterior windows, or common elements. Your declaration and standard unit bylaw define what is yours to change.

Do I need condo board approval to renovate?

Usually yes for anything beyond cosmetic finishes. Plumbing, electrical, flooring underlay, and wall changes typically require the board's approval, often through a written alteration agreement.

Do condos have flooring rules?

Most Ontario condos require a sound-rated underlay under new hard flooring to limit noise for the unit below. The required rating is set in the condo's rules, so check before choosing flooring.

Do I need a building permit to renovate a condo?

Yes, for the same triggers as a house: plumbing, electrical, and structural or wall changes. Condo board approval and a municipal building permit are separate requirements you may both need.

How long does a condo renovation take?

A condo kitchen or bathroom takes about the same on-site time as in a house, but approvals, elevator bookings, and restricted work hours can extend the overall schedule, so build that into your plan.

Zeybek Construction

General contractors, Ontario

Written by the Zeybek team from more than two decades of renovation and construction work across Ontario, from Toronto and the GTA to Kitchener, Waterloo, and beyond. We build kitchens, bathrooms, whole homes, additions, and commercial spaces, and we handle permits and inspections as part of the job.

Last updated July 1, 2026. This guide is general information for Ontario homeowners and is not a substitute for a site-specific quote or municipal advice. Costs and rules vary by municipality and project.

Renovating a condo in Ontario