A condo common area lighting retrofit is the replacement of a building’s shared-area light fixtures, and often its lighting controls, with modern LED equipment. It covers corridors, lobbies, elevator cabs and lobbies, stairwells, parking garages, amenity rooms, washrooms, mechanical and storage rooms, and the exterior and landscape lighting.

Lighting is the most used electrical load in most condominium common areas, because it runs whenever someone might be present, which is nearly always. It is also the element that most directly determines how a building feels: a corridor with uneven, dim lighting reads as unsafe no matter how good the new carpet is, and a garage with patchy lighting feels hazardous.

This guide covers what a retrofit involves, what it costs per fixture in the Greater Toronto Area, how the savings actually stack up, what controls are worth installing, and the compliance and safety items that boards most often overlook.

Why Lighting Is Usually the Best Value Project in the Building

Boards comparing projects often rank lighting below visible items like the lobby or the corridors, because it is less obviously transformative. In financial terms it is frequently the strongest candidate on the list.

The three sources of value

1. Energy. A legacy fluorescent or incandescent fixture replaced with an LED of equivalent output typically reduces wattage very substantially, and common area lighting runs for most of the day, every day.
2. Maintenance. Lamps and ballasts are replaced on a cycle, and every replacement is a labour call-out. Longer-life LED equipment removes most of that recurring cost, which is often larger than boards expect because the labour is charged whether or not the lamp is expensive.
3. Experience. Better lighting changes how safe and cared-for a building feels. It also makes the finishes a board has just paid for actually look like the samples they approved, which is a real and frequently overlooked benefit.

The scale of the opportunity

Consider how many hours a year a corridor fixture runs. If it is on eighteen hours a day, that is roughly 6,570 hours a year, every year, for every fixture across every floor. A garage may run continuously. Multiplied across a building, lighting is often one of the corporation’s largest utility line items and one of the few that can be reduced without any effect on service levels.

Why it is usually overlooked

Because it works. Lighting that functions attracts no complaints, so it rarely reaches the top of a board’s agenda until fixtures start failing or a corridor is being refurbished anyway. That is precisely the argument for treating it as a planned component in the reserve fund study rather than as a reactive repair.

Our guide to common element refurbishment cost explains how to structure a budget that includes lighting alongside the finishes, and our guide to the condo refurbishment timeline explains why combining it with ceiling or garage work is materially cheaper.

What a Lighting Retrofit Actually Involves

There is a large difference between changing lamps and retrofitting the lighting in a building. The distinction determines both the cost and the result.

Approach	What it means	When it is the right answer
Lamp-only replacement	Fit LED lamps into existing fixtures and keep the existing ballasts and housings	A short-term, lowest-cost improvement where fixtures are in good condition and the layout works
Retrofit kit	Replace the light engine and often the driver inside the existing housing, keeping the physical fixture	Where housings and ceiling positions are sound but the equipment is at end of life
Fixture replacement in existing positions	New complete fixtures installed where the old ones were	The common choice: better performance and easier maintenance, with no ceiling changes
Reconfiguration with new layout	New fixtures, new positions, often new circuits and controls	Where the existing layout produces dark pockets or uneven light, which is common in corridors and garages

The elements of a full scope

• Fixture replacement throughout corridors, lobbies, elevator cabs and lobbies, stairwells, garages, amenity rooms, washrooms and back-of-house areas
• Lighting controls: occupancy or vacancy sensors, daylight dimming where there is glazing, and time scheduling for garages and exterior lighting
• Circuit and panel review, because new low-wattage fixtures on old circuits can require rebalancing, and controls need somewhere to live
• Emergency and exit lighting review, including battery units, exit signs and any central system
• Exterior, landscape and canopy lighting, which is often the oldest equipment on the site
• Elevator cab lighting, where it is easiest to renew while the cab is being refurbished
• Recycling and disposal of the old lamps and ballasts, which contain materials requiring proper handling

The point about layout

Replacing fixtures one-for-one in their existing positions is the cheapest option and it preserves whatever the original design got wrong. If a corridor has dark pockets between fixtures, or a garage has pools of light and shadow, one-for-one replacement will reproduce that. Where a space is being refurbished anyway, it is worth asking the designer to review the layout, because moving a fixture position costs very little while a ceiling is already open and a great deal afterwards.

What a Lighting Retrofit Costs

Costs depend on fixture type and quality, whether the layout is being redesigned, whether circuits and controls are added, and the access conditions in each space.

Item	Unit	Typical range	Notes
Corridor or stairwell fixture	Per fixture	$180 – $420	Includes fixture and installation; higher end for decorative or feature units
Lobby or feature fixture	Per fixture	$300 – $900+	Design fixtures and feature lighting cost materially more
Garage fixture	Per fixture	$200 – $450	Often includes surface conduit, and access from a lift is efficient
Elevator cab lighting	Per cab	$400 – $1,500	Best value when the cab is being refurbished anyway
Exterior and canopy fixture	Per fixture	$350 – $900	Weather-rated equipment and often lift access
Occupancy or vacancy sensor	Per sensor	$120 – $350	Installed; the highest-return control in stairwells and back-of-house
Daylight dimming	Per zone	$250 – $700	Worth it where there is significant glazing, such as lobbies and some garages
Time scheduling / lighting control panel	Per project	$2,500 – $15,000	Scales with the number of zones and whether it is networked
Circuit or panel work	Per project	$2,000 – $25,000	Highly variable; required where controls are added or circuits are rebalanced
Emergency and exit lighting review	Per project	$3,000 – $20,000	Battery units, exit signs, and any central system, plus certification
Design and lighting layout	Per project	$3,000 – $18,000	Photometric layout, fixture schedule and specification
Full building retrofit (combined)	Per fixture	$250 – $650	All-in, including controls and electrical work, depending on the mix

A worked example

Take a 200-suite building with 90 corridor fixtures, 40 stairwell fixtures, 120 garage fixtures, 25 lobby and amenity fixtures, 30 exterior fixtures and 185 back-of-house fixtures, totalling 490 fixtures.

Line	Quantity	Rate	$
Corridor and stairwell fixtures	130	$300	$39,000
Garage fixtures	120	$320	$38,400
Lobby, amenity and feature fixtures	25	$520	$13,000
Exterior and canopy fixtures	30	$560	$16,800
Back-of-house fixtures	185	$260	$48,100
Occupancy sensors (stairwells, storage, back-of-house)	60	$220	$13,200
Lighting control panel and time scheduling	1	$7,500	$7,500
Emergency and exit lighting review and remediation	1	$9,000	$9,000
Design, photometric layout and specification	1	$7,000	$7,000
Subtotal			$192,000
Contingency @ 10%			$19,200
HST @ 13%			$27,456
Estimated total			$238,656
Per suite	200 suites		about $1,193

How the payback works

The energy saving depends entirely on what is being replaced. Where a building has legacy fluorescent or incandescent fixtures running long hours, the electricity reduction alone is often significant enough that the installed cost is recovered within a few years, before counting the maintenance savings or the incentives that are sometimes available for efficiency projects. Where fixtures are already efficient, the case rests mainly on maintenance reduction and lighting quality rather than on energy.

The honest framing for a board is that a lighting retrofit is a project with a measurable operating return, which is unusual among common element work. Lobbies and corridors improve the building but do not reduce operating cost. Lighting does both. Our guide to funding refurbishment from the reserve fund explains how a component with an operating return can be presented to owners in a funding plan.

Figures are realistic 2026 GTA planning ranges for budgeting, not a quotation. Energy savings depend on the existing equipment, the operating hours and current electricity rates, and should be modelled for the specific building before the board commits.

Getting the Light Right: Quality, Not Just Wattage

The most common disappointment with a retrofit is that the new lighting is efficient but the space still feels wrong. That is a specification problem, and it is avoidable.

Parameter	What to specify	Why it matters
Illuminance	A target lux level set by the space’s function, and even distribution rather than a high average	An even corridor feels safe; a bright average with dark pockets does not
Colour temperature	A deliberate, consistent value, typically in the neutral range for residential common areas	Warm and cool light change how every finish in the space is perceived, and inconsistency between lobby, corridor and garage is immediately noticeable
Colour rendering	A high colour rendering index	Low colour rendering makes finishes look grey and makes faces look unwell, which matters in lobbies and concierge areas
Glare control	Shielding, diffusers or appropriate optics	Bare LED sources are uncomfortable and look cheap, particularly in corridors viewed lengthwise
Flicker	Drivers with low flicker output	Flicker is uncomfortable, can affect people with photosensitivity, and is a common complaint after cheap retrofits
Dimming	Compatible dimming where amenity rooms or lobbies need flexibility	A party room and a board meeting need different light levels
Lifetime and warranty	A stated rated life and a meaningful warranty on the driver as well as the LED	Driver failure, not LED failure, is the usual cause of early replacement

Consistency across spaces

One of the most noticeable failures in a partially retrofitted building is a mismatch between spaces: a warm lobby, a cool corridor, and a distinctly different garage. Residents may not identify the cause, but the building feels unresolved. The specification should define colour temperature once for the whole building and apply it consistently, which is also why lighting is better done as one project rather than corridor by corridor over several years.

Our existing article on how colour temperature affects your surroundings explains the concept in more detail, and our guide to condo corridor and amenity lighting covers the design and collaboration process. Our article on lumens and light output is a useful primer on why wattage is the wrong measure to compare.

Controls: Where Much of the Saving Lives

Controls are frequently omitted from a retrofit because they add cost and complexity. They are also where a large share of the ongoing saving comes from, particularly in spaces that are occupied intermittently.

The controls worth considering

• Occupancy or vacancy sensing in stairwells, storage rooms, electrical and mechanical rooms, garbage rooms and back-of-house corridors. These spaces are often lit continuously for no reason.
• Daylight dimming where there is significant glazing, so fixtures reduce output when natural light is available. Lobbies and some garages with perimeter glazing benefit most.
• Time scheduling for garages, exterior and landscape lighting, and amenity rooms, so lighting follows actual patterns rather than being permanently on.
• Bi-level or corridor dimming, where lighting steps up on detection and steps down to a safe base level. This is increasingly common in residential corridors and stairwells.
• Networked control where monitoring and adjustment from a single point is worth the cost, typically in larger buildings.

The caveats boards should understand

• Safety comes before saving. Stairwells and exits must remain adequately lit at all times, and controls must not create dark conditions where egress or safety is affected.
• Detection must be reliable. A sensor that misses a person in a stairwell creates a genuinely bad experience and will be complained about.
• Residents will notice bad controls more than good ones. Lights switching off while someone is present is the most common complaint after a poorly specified retrofit.
• Maintenance staff need to understand them. Controls that nobody can adjust are eventually bypassed, which removes the saving entirely.

The practical approach is to apply aggressive controls where intermittent occupancy is genuinely safe and expected, such as storage rooms and back-of-house areas, and to be more conservative in corridors, stairwells and garages where safety and resident experience dominate.

Compliance, Safety and Coordination

Lighting work touches several regulatory and safety areas. These are the items boards most often discover late.

Emergency and exit lighting

Emergency lighting, exit signage and any central emergency system are life safety equipment and must operate correctly. A retrofit is the moment to test, document and correct deficiencies, because access is already set up and the electrical contractor is already on site. This is not optional work and it should be a defined part of the scope with a certification at completion.

Electrical code and permits

Electrical work must comply with the Canadian Electrical Code and is subject to Ontario’s electrical safety requirements, including inspection where applicable. Where circuits are modified, panels altered or controls added, a permit and inspection are typically required. The contract should state who is responsible for obtaining permits and inspections, and boards should confirm this rather than assume it is included. Our guide to choosing a condominium refurbishment contractor covers how to require this evidence at proposal stage.

Building code considerations

Requirements for lighting in means of egress, including corridors and stairwells, come from the Ontario Building Code, and any change to lighting in those locations should be confirmed as compliant. Where a space’s use is changing, such as an underused amenity room being repurposed, lighting should be reviewed against the new use. Our guide to condo accessibility and AODA for common areas covers the accessibility requirements that lighting supports, including the legibility of signage and identification of hazards.

Waste handling

Legacy lamps and ballasts contain materials that require proper handling and recycling rather than general disposal. Boards should ask the contractor how they will be managed and require it in the contract.

Coordination with other work

Lighting is the element that most rewards coordination. Replacing fixtures while a corridor ceiling is open, while the garage is being coated, or while elevator cabs are being refurbished costs a fraction of doing it separately, because access, protection and supervision are already in place. Where a building has several components approaching renewal, sequencing lighting alongside them is one of the easiest savings available to a board. Our guides to corridor refurbishment, parking garage refurbishment and elevator cab refurbishment each explain how lighting fits that element’s scope.

Frequently Asked Questions

How much does a condo lighting retrofit cost?

In the Greater Toronto Area, replacing common area fixtures typically runs $180 to $450 per fixture for corridors, stairwells and garages, $300 to $900 or more for lobby and feature fixtures, and $350 to $900 per fixture for exterior equipment. Controls add roughly $120 to $350 per sensor and $2,500 to $15,000 for a control panel and scheduling, and circuit or panel work is highly variable. For a full building, an all-in installed cost of roughly $250 to $650 per fixture including controls and electrical work is a reasonable planning range.

Is an LED retrofit worth it for a condominium?

It depends on what is being replaced, but lighting is often the best-value project available to a board because it is one of the few common element improvements that reduces operating cost rather than only improving appearance. The return comes from lower energy consumption, given that common area lighting runs for most of the day, and from far longer equipment life, which removes recurring lamp and ballast replacement labour. Where a building already has efficient fixtures, the case rests mainly on maintenance reduction and lighting quality rather than energy saving, and that should be stated honestly to owners.

How long does it take for a lighting retrofit to pay back?

There is no single answer because it depends on the existing equipment, the number of operating hours and the electricity rate. Where a building is running legacy fluorescent or incandescent fixtures for long hours, the energy saving alone frequently recovers the installed cost within a few years, before counting maintenance savings or any efficiency incentive. Where equipment is already reasonably efficient, payback is longer and depends mainly on avoided maintenance. The right approach is to model it for the specific building using actual fixture counts and operating hours before the board commits.

Should we add occupancy sensors in condo corridors?

Boards should be cautious about aggressive controls in corridors and stairwells. Safety and resident experience dominate in these spaces, and the most common complaint after a poorly specified retrofit is lighting switching off while somebody is present. Controls work best where intermittent occupancy is genuinely expected and safe, such as storage rooms, electrical and mechanical rooms, garbage rooms and back-of-house areas. In corridors and stairwells, a bi-level approach that steps up on detection and returns to a safe base level is usually a better compromise than switching off entirely.

Do we need a permit for condo lighting work?

Where circuits are modified, panels are altered or lighting controls are added, electrical permits and inspections are typically required under Ontario’s electrical safety requirements, and all electrical work must comply with the Canadian Electrical Code. Requirements depend on the scope, so the board should require the contractor to confirm the position for the specific work rather than assume it is covered. The contract should state clearly who is responsible for obtaining permits and arranging inspections, and this should be clarified at proposal stage rather than discovered once work is underway.

How do we choose the right colour temperature for common areas?

Colour temperature should be specified once for the whole building and applied consistently, because a warm lobby, a cool corridor and a different garage is immediately noticeable even if residents cannot identify the cause. Neutral values are usually appropriate for residential common areas, and a high colour rendering index matters in lobbies and concierge areas where finishes and faces are seen. Glare control and low flicker matter as much as colour. Our article on how colour temperature affects your surroundings explains the concept, and the specification should state a single value for the building rather than leaving it to individual fixture choices.

What is the difference between replacing lamps and a full lighting retrofit?

Replacing lamps means fitting LED lamps into existing fixtures and keeping the existing ballasts and housings, which is the lowest-cost option and suits fixtures in good condition with a workable layout. A retrofit kit replaces the light engine and often the driver inside the existing housing. Full fixture replacement installs new complete fixtures, usually in the existing positions, and gives better performance and easier maintenance. Reconfiguring the layout with new positions goes further and is worth doing where the existing design produces dark pockets, which is common in corridors and garages, especially when a space is being refurbished anyway.

Image Credits

Photographs via Wikimedia Commons: Warren LeMay via Wikimedia Commons (CC0 (Public Domain Dedication), no attribution required); Hassocks5489 via Wikimedia Commons (CC0 (Public Domain Dedication), no attribution required).