Legal Basement Suites in North Oakville: Rules, Permits & Rental Income

A legal basement suite is one of the most effective ways a North Oakville homeowner can turn part of their house into real income, whether that's helping carry a mortgage, housing an aging parent, or giving an adult child a private space to save for their own down payment. But "legal" is the operative word. Skipping the permit process risks more than a fine: it can void your insurance, block your ability to use the rental income for a mortgage, and create real safety hazards for a tenant. This guide covers everything a North Oakville homeowner needs to know, from the legal definition of a secondary suite to what it actually costs to build one and keep it compliant.

What Is a Legal Basement Suite in Ontario

In Ontario, a legal basement apartment, officially an Additional Residential Unit (ARU) or secondary suite, is a self-contained dwelling unit within a primary home, with its own private kitchen, bathroom, and sleeping area. Understanding what makes a legal basement apartment Ontario homeowners can actually rent out, versus an informal rental, is the first step for anyone considering one.

To be legally recognized, a suite must clear three hurdles: it must comply with the local zoning bylaw (which governs where suites are permitted, size, and parking), meet Ontario Building Code standards for fire separation, ceiling height, ventilation, and egress, and be formally inspected and listed on the municipality's registry of two-unit houses, the Town's ARU registry in Oakville's case.

Legal vs. Illegal Suites: What's Actually Different

The gap between legal and illegal isn't paperwork, it's safety, insurance, and financing.

A legal suite is built under permit, fully inspected, has proper fire-rated separations, interconnected smoke and CO alarms, and code-compliant egress windows. It's registered with the town, fully insurable, and lenders will recognize the full rental income on a mortgage application.

An illegal suite is typically built without a permit, or under a "finished basement" permit but used as a separate unit anyway. It often lacks adequate fire barriers or a proper second exit, is invisible to tax assessments and emergency services, and insurance claims tied to it, especially fire or water damage, can be flatly denied. Banks will often heavily discount or exclude the rental income entirely.

The "Grandfather Clause" Myth

Old basement apartments aren't automatically grandfathered in just because they've existed a long time. A suite is generally only grandfathered if a homeowner can prove continuous occupancy as a separate apartment before November 16, 1995, and even then it still needs to pass basic Fire Code inspections. Anything built after 1995 without a permit is illegal, regardless of how long it's been rented.

Why Basement Suites Are Booming in North Oakville

A few forces are driving the surge. Financial pressure tops the list: with home prices and interest rates weighing on buyers, a legal suite acts as a genuine mortgage helper, and strong renter demand from professionals drawn to North Oakville's schools and safety, without being ready to buy, keeps rents solid.

Provincial legislation has cleared old roadblocks. Bill 23, the More Homes Built Faster Act, guarantees homeowners can build up to three residential units on a lot as of right, meaning municipalities can no longer zone secondary suites out of existence, provided the Building Code is met. These units are also exempt from development charges, community benefit charges, and parkland dedication fees.

Family needs are shifting too. Many families build a suite to keep an aging parent close with private, stairs-free living instead of costly retirement care, while adult children facing steep rent increasingly stay home longer, using a self-contained suite to save for their own down payment.

Investors are paying attention as well, shifting capital toward North Oakville's lower-maintenance new builds, many of which already feature higher basement ceilings, rough-in plumbing, and walk-out grading that make conversions far more straightforward.

Zoning Rules for Secondary Suites in Oakville

Which Oakville zoning bylaw basement apartment rules apply depends on location: south of Dundas Street falls under By-law 2014-014, while North Oakville falls under the North Oakville Zoning By-law 2009-189.

Secondary suites are permitted as-of-right across most residential zones. Detached homes have the most flexibility, and ARUs are broadly permitted in semi-detached and link homes too. Freehold townhouses face more practical restriction, since shared party walls and lot-coverage limits can make a compliant conversion harder even though the provincial framework technically allows it. One local rule worth flagging: under a 2024 bylaw update, any new external entrance built to access a basement suite can't face a yard or side setback narrower than 1.0 metre.

Provincial Legislation: Bill 23 and As-of-Right Zoning

Bill 23 means municipalities can't pass zoning bylaws banning secondary suites, and homeowners are guaranteed the right to build additional units without needing a Minor Variance, as long as the Building Code is satisfied. The province's baseline allows up to three units per lot as of right, whether that's three units within the primary building, or two in the primary building plus one in an ancillary structure like a converted garage. Bill 23 also banned development charges and parkland levies on new secondary suites, and prohibits municipalities from setting arbitrary minimum floor space requirements beyond what the Building Code already mandates.

North Oakville's Narrow-Lot Challenges

While the town can't ban secondary suites outright, North Oakville's newer subdivisions bring real practical hurdles. Many homes sit on side-yard setbacks as tight as 0.6 to 1.2 metres, and under the 1.0-metre rule, a suite entrance can't go on a side that narrow, often forcing homeowners toward a shared front foyer or rear-yard entrance instead. Driveway rules can bite too: strict front-yard lot coverage caps mean a narrow driveway may be physically impossible to widen for the required parking space without violating green-space minimums. And because newer subdivisions often carry a builder's original Subdivision Agreement governing grading and drainage, a new basement stairwell can disrupt planned stormwater management, requiring engineering review before a permit is issued.

It's worth emailing the Town's zoning department with your specific address before hiring an architect to confirm upfront whether your lot can legally accommodate a suite.

Does a Basement Suite Require a Separate Legal Address?

Yes. A legal suite gets its own unit designation, typically the main address plus a unit letter or "Basement." This lets emergency services locate the exact entrance during a fire or medical emergency, lets Canada Post and utility providers recognize the unit separately if sub-metered, and lets MPAC update its records to reflect two dwelling units, even though the property keeps a single tax roll number.

Ontario Building Code Requirements

These are the hard technical minimums, and the requirements most unpermitted basements ultimately fail.

Ceiling Height and Natural Light

The legal basement ceiling height in Ontario depends on the type of construction project rather than the age of the house. For existing homes undergoing basement renovations or secondary suite conversions, the minimum finished ceiling height is 1.95 metres (6'5") across the main living areas, with 1.85 metres (6'1") permitted under localized beams or ductwork. Conversely, new residential construction (New Builds) must meet a stricter standard of 2.3 metres (7'6.5") over the required living spaces.

Beyond height, natural light is also strictly regulated based on the window glass area relative to the room's total floor area. Under the Ontario Building Code, living and dining rooms require a minimum of 5% window area, while bedrooms need at least 2.5%. While kitchens and bathrooms can skip natural light windows if compliant mechanical ventilation is installed, it is crucial to remember that a standard window might satisfy the light requirements but still fail the separate, larger emergency egress size regulations.

Fire Safety and Egress

To comply with the Ontario Building Code (OBC), fire separation requires a continuous fire-rated barrier between the units. A minimum 45-minute fire rating is strictly required, which is typically achieved using 5/8-inch Type X drywall and mineral wool insulation. Furthermore, any fire-rated doors in shared areas like exit corridors or laundry rooms must have at least a 20-minute rating and an automatic self-closer.

Life safety rules also dictate that interconnected smoke alarms must be hardwired across both units; a sensor triggered in one suite will sound all alarms simultaneously. These are mandatory on every floor, inside every bedroom, and in common areas. Additionally, carbon monoxide (CO) detectors must be installed within 5 meters of all sleeping areas if the property has a fuel-burning appliance or an attached garage.

Finally, every suite must provide two safe means of egress. The primary route must be a dedicated exterior door or a shared, fire-rated foyer accessible by both units independently. The secondary route relies on basement egress window codes for bedrooms. A compliant window must provide an unobstructed opening of at least 0.35 square meters, with no single dimension less than 380 mm, and a minimum of 760 mm of clear depth in front if it opens into a window well.

Mechanical, Electrical and Plumbing Requirements

HVAC can be shared, but a shared furnace needs an inline duct smoke detector that shuts the fan down the instant smoke is detected. Many conversions instead cap the old ductwork and install an independent mini-split system. Range hoods and bathroom fans must vent to the outside, not recirculate.

Electrical doesn't legally require a separate panel, but the main panel typically needs 200-amp capacity to handle the added load, since most homes are built with 100 or 120-amp service. A shared panel needs to sit somewhere both tenants can access without crossing into private space; otherwise a sub-panel is required. New circuits in the suite's bedrooms and living areas also need AFCI protection.

Plumbing can share the main water line, but a Water Service Pipe Sizing Form needs to confirm the pipe can supply the added fixtures. A mainline backwater valve is strongly recommended to stop sewer backups from flooding the suite, and at minimum the unit needs its own kitchen sink, a full bathroom, and laundry access.

Parking Requirements

Oakville does not require an additional off-street parking space for a basement suite tenant; the zoning bylaw explicitly states no extra space is mandated for an ARU.

There's a practical trap worth knowing, though: overnight street parking is banned town-wide between 2 a.m. and 6 a.m. year-round, with towing for violators. If the driveway is already full, tenants typically need a tandem arrangement, one car behind another, rather than relying on the street.

The Permit Process, Step by Step

Getting a basement apartment permit in Oakville, whether building new or legalizing an existing unit, follows two genuinely different paths through the Town's departments.

Building a New Legal Suite

A basement apartment permit Oakville homeowners apply for runs through several stages: a zoning assessment (ideally by emailing the Town with your survey to confirm setback compliance), Conservation Halton clearance if near a ravine or wetland, design documentation (site plan, floor plans with ceiling heights and window percentages, fire-rated assembly details), and formal permit submission with the Town's per-square-metre fee.

Once issued, staged inspections are required at framing, insulation and vapour barrier, and plumbing rough-in, the same milestones that apply to any building permit finished basement Oakville homeowners pull, whether it's a personal renovation or a rental suite. Electrical runs on a parallel track through the ESA, which independently issues its own Certificate of Acceptance. Only after final structural sign-off can you file to add the unit to the Town of Oakville secondary suite registry before a tenant moves in.

Legalizing an Existing Unregistered Suite

For homeowners wondering how to legalize a basement apartment in Ontario when one already exists unpermitted, start with as-built drawings from a BCIN-holding designer measuring the space as it stands, then a core feasibility check on ceiling height and setbacks; falling short on either can make legalization structurally or legally impossible without major excavation or a variance appeal.

From there, a change of use permit basement Ontario homeowners need details the corrective work needed. This is usually where costs climb, since inspectors often need to see behind existing finishes: drywall gets opened, non-rated ceilings get replaced with Type X board, and undersized windows often need enlarging by cutting into the foundation. A licensed electrician then performs a retroactive ESA audit, correcting outlets and adding required AFCI breakers, before the Town closes the permit and authorizes ARU registration.

Timeline and Inspections

A typical conversion spans three to six months: architectural drafting (two to four weeks), Town permit review (four to six weeks, longer with a Conservation Halton review), and construction with staged inspections (eight to twelve weeks, depending on underpinning or plumbing work).

Before occupancy, a suite must pass structural and rough-in inspections from the Town (plumbing, framing, HVAC), independent electrical inspections from the ESA, an insulation and fire-separation check before drywall closes, and a final building inspection confirming ceiling heights, egress function, self-closing doors, and interconnected alarms, before the suite is added to the registry.

What It Costs

Costs vary considerably depending on whether you're building from scratch or retrofitting an existing unpermitted unit.

Construction and Legalization Costs

The cost to legalize basement apartment Ontario projects require varies significantly by scope. For an 800-square-foot suite built new, structural and finishing work alone runs $30 to $75 per square foot, and once legal-suite requirements (plumbing, fire rating, heating) are added, totals commonly land between $75,000 and $120,000 or more. Retroactively legalizing an existing unpermitted apartment tends to run $30,000 to $60,000 or more, since so much of the budget goes toward destructive corrective work rather than fresh construction.

Rough line items typically include permits and planning ($3,500 to $7,000), fire-rated separation ($5,000 to $10,000), egress window installation ($3,500 to $7,000 per window), a 200-amp electrical upgrade ($2,500 to $4,500), and plumbing and slab work ($4,000 to $9,000).

Financing Options

It's worth being clear here, since outdated information circulates widely: the federal Canada Secondary Suite Loan Program, announced in Budget 2024 to offer up to $80,000 at roughly 2% over 15 years, was never actually launched. Budget 2025 confirmed it wouldn't be implemented, citing overlap with a measure that had already gone live. If a website references this loan as currently available, that information is out of date.

What exists today is the CMHC Refinance for Secondary Suites, in effect since January 2025, letting eligible homeowners refinance up to 90% of their home's "as-improved" post-renovation value, on properties under $2 million, with amortization up to 30 years. Unlike the cancelled program, this is a refinance, not a standalone loan, and needs CMHC approval before construction begins.

Beyond that, the Multigenerational Home Renovation Tax Credit offers 15% back on up to $50,000 of eligible costs (up to $7,500) when a suite houses a senior relative or family member with a disability, and regional programs like Ontario Renovates, through Halton Region, can offer forgivable loans for lower-income or senior households, though eligibility shifts over time and is worth confirming directly.

Ongoing Costs After Construction

Property tax typically rises modestly once MPAC reassesses the added finished space, often a few hundred dollars annually rather than a dramatic jump. Insurance needs updating from a single-family to a two-family dwelling policy, usually raising premiums 10 to 20% a year, and it's worth confirming loss-of-rental-income coverage is included. Utilities often climb 30 to 50% overall, and landlords typically handle this by rolling an estimate into rent, splitting a fixed percentage in the lease (legal under the RTA if clearly written before occupancy), or installing a private sub-meter, especially common in new builds.

Rental Income and Resale Value

A legal suite doesn't just pay off monthly; it changes how the home performs as both a rental and a future sale.

What North Oakville Suites Rent For

North Oakville basement rental rates run strong across the area's newer communities, supported by high household incomes, strong school catchments, and easy highway and GO Transit access. A well-finished one-bedroom legal suite tends to land at the upper end of local one-bedroom rents, with two-bedroom units pushing higher still, particularly with bright layouts and taller ceilings common in newer builds. Listings that explicitly advertise a Town-registered legal suite tend to draw stronger tenant interest, since renters increasingly understand the safety difference.

Impact on Home Resale Value

A registered legal suite widens the buyer pool considerably. First-time buyers and growing families actively look for properties that offset a mortgage with reliable income, and investors will often pay a real premium, commonly cited in the tens of thousands, for a home with a pre-registered suite, since it removes months of planning and construction risk. The flip side: an unpermitted apartment discovered during a sale, especially with a kitchen still installed, can work against a seller, since buyers may push hard on price or ask for appliances to be removed before closing.

Using Rental Income to Qualify for a Mortgage

Leveraging a legal basement suite is one of the most powerful tools available to homebuyers, but navigating the mortgage rules requires precision. If a buyer puts down less than 20%, the mortgage requires default insurance. In these insured scenarios, the Canada Mortgage and Housing Corporation (CMHC) strictly mandates that the suite must be fully legal and municipally compliant for any rental income to count; lenders will completely exclude income from an illegal suite.

For a verified legal suite, lenders can include up to 100% of projected gross rental income to offset debt service ratios, though this maximum allowance typically applies to owner-occupied properties with up to two units. For other setups or investment profiles, a 50% rental income calculation may still apply. To use this income for a new purchase without an active tenant, lenders require a formal market rent appraisal. If a tenant is already in place, you will need a signed lease agreement alongside bank statements proving consistent deposits. Additionally, purchasing a home with a legal secondary suite can qualify buyers for an extended 30-year amortization period, significantly lowering monthly carrying costs.

Tax Implications

Renting out part of your home has real consequences with the CRA, and one of them can quietly undo a tax break most homeowners assume is automatic.

Reporting Rental Income

Every dollar collected from a basement tenant needs to be reported to the CRA, added to personal income and taxed at your marginal rate, and reported annually on Form T776 as part of your T1 return.

Deductible Expenses

Direct expenses exclusive to the suite, advertising, suite-specific repairs, tenant-related legal fees, are fully deductible. Shared expenses covering the whole house, insurance, property taxes, utilities, mortgage interest (never the principal portion), need to be prorated based on the suite's share of total square footage.

Protecting Your Principal Residence Exemption

This is the biggest hidden tax trap. Normally, selling a primary residence is entirely tax-free under the Principal Residence Exemption. Renting out part of the home technically triggers a "change in use," meaning the CRA treats it as a partial disposition at fair market value.

A homeowner can generally keep the full exemption on the entire property if three conditions hold: the rental use stays ancillary (the owner still occupies the majority of the property), the conversion doesn't change the property's character into a purely commercial multi-unit building, and the homeowner never claims Capital Cost Allowance on the rented portion. Claiming even a small amount of CCA can permanently invalidate the exemption for that portion, triggering capital gains tax on its appreciation from the date the suite was created to the date of sale. Renting to a family member below market rate doesn't exempt you from reporting either, and any resulting loss may not be usable to offset other income.

Landlord and Tenant Obligations

Renting out a basement suite makes you a landlord in every legal sense, with the same disclosure duties and tenant protections that come with any rental.

Tenant Rights Under the RTA

A basement apartment is treated like any other rental unit under the Residential Tenancies Act, with one exception: if a tenant shares a kitchen or bathroom with the homeowner or their immediate family, the RTA doesn't apply at all. A fully self-contained legal suite is fully covered.

Landlords must use the official Ontario Standard Lease; custom clauses conflicting with the RTA are simply void. It's worth checking the suite's original occupancy date too: units first occupied after November 15, 2018 are exempt from Ontario's rent control guideline, allowing market-rate increases once a year with 90 days' notice, while older suites remain subject to the province's capped annual increase.

Landlords carry real maintenance obligations, keeping the unit in good repair, and the same entry rules as any landlord: at least 24 hours' written notice, entry only between 8 a.m. and 8 p.m. except emergencies. Worth dispelling directly: an unregistered suite doesn't let a landlord bypass the Landlord and Tenant Board. The RTA covers any tenancy, and an informal lockout eviction is itself illegal.

Lender Disclosure

Generally, a homeowner doesn't need to notify their mortgage lender about a basement rental, as long as they continue occupying the main portion of the home. Disclosure is required in two cases: using the rental income to qualify for a purchase or refinance, or applying for construction funds tied specifically to building the suite. The bigger practical risk sits with insurance, since your lender is typically named as a loss payee, so a voided policy from an undisclosed suite can trigger a technical mortgage default too.

Insurance Disclosure

A homeowner is legally obligated to disclose a basement rental to their home insurance provider, since it constitutes a material change in risk. Failing to disclose means insurers can deny a claim entirely, or retroactively void the whole policy, not just basement coverage, for material misrepresentation. A voided policy also strips personal liability protection, and since continuous insurance is a mortgage condition, it can trigger technical default there too. Disclosing properly typically raises premiums 10 to 20% a year (often $150 to $300), in exchange for full structural coverage, rental income protection, and properly expanded liability limits.

The Risks of Renting an Illegal Suite

Skipping the permit process doesn't just mean missing out on the benefits above, it exposes a homeowner to real legal and financial danger.

Legal and Financial Risks

Operating an unregistered suite exposes a homeowner well beyond a simple fine. Insurance claims are routinely denied, leaving repairs entirely out of pocket. If a tenant is injured, trapped during a fire because of a missing egress window, for instance, the landlord can face a civil lawsuit, and standard liability coverage generally won't protect a homeowner if the suite defied safety codes. In the most serious cases, an unpermitted suite contributing to severe injury or death can trigger criminal negligence charges under the Fire Protection and Prevention Act. Tenants still retain RTA protection even in an illegal unit, and can apply to the LTB for compensation if the unit is later found unsafe.

What Happens If the Town Finds Out

Discovery usually starts with a complaint or an emergency responder noticing an unregistered unit, triggering an investigation by a bylaw officer or fire inspector. If confirmed, the Town issues a formal Order to Comply, requiring either immediate decommissioning (stove removed, gas and electrical capped, typically within 30 to 60 days) or forced retroactive legalization. If a fire inspector finds an immediate life-safety threat, an Immediate Eviction Order can follow, with the landlord potentially covering the tenant's emergency moving and housing costs. Continued non-compliance can lead to prosecution under the Building Code Act and Fire Protection Act, with fines reaching well into the tens of thousands for an individual, and higher for a corporate owner.

North Oakville's New-Construction Context

The area's newer housing stock changes the conversion math significantly compared to Oakville's older neighbourhoods.

Are Basement Suites More Common Here?

Legal suites show up as active projects far more often in North Oakville than in Oakville's older neighbourhoods. Homes built through the 1970s to 1990s often have low raw ceiling heights, sometimes seven feet or less, requiring expensive underpinning to meet code. Newer North Oakville homes are typically built with taller foundation ceilings and more efficient mechanical spacing, meaning fewer structural obstacles to clearing the 1.95-metre standard.

Do Newer North Oakville Homes Come "Legal-Suite-Ready"?

Not quite, even though the structure is far more conversion-friendly. Most builders offer upgraded add-ons during pre-construction, a separate side entrance engineered into the grading, a three-piece plumbing rough-in, and deeper foundation windows sized for natural light. What builders don't typically deliver is a finished, legal suite at closing: open wood joists rather than fire-rated separation, shared electrical and furnace capacity rather than upgraded systems, and no ARU registration, which only happens once a post-construction inspector verifies the completed suite. Even a home bought with every available upgrade still needs a genuine post-closing project to become fully legal.

Advice for First-Time Buyers

Buying specifically to add or preserve a legal suite means inspecting the property with an income-asset lens. Check the raw ceiling height first; anything under roughly 8 feet raises real risk of needing underpinning. Look at side-yard width; under 1.0 metre pushes you toward a shared foyer or rear entrance. Check window sizes and well depth in potential bedrooms, since egress rules are stricter than general natural-light rules. A home with existing 200-amp service and a builder plumbing rough-in can save thousands.

If a finished basement apartment already exists, never assume it's legal just because a tenant lives there. Ask for the Town's ARU registry number, request the ESA Certificate of Acceptance, and have your realtor build a warranty clause into the Agreement of Purchase and Sale where the seller confirms the suite is fully legal and registered, with the right to walk away or require legalization before closing if it isn't.

Advice for Current Homeowners

Before signing with a renovator, measure the lowest point in your basement; falling short of 1.95 metres generally means underpinning, which alone can add $30,000 to $50,000. Check your exact side-yard setback if planning a separate entrance, and if near a ravine or drainage swale, confirm early whether Conservation Halton approval will be needed.

Open your main electrical panel; if it's still 100 or 125-amp, budget for the roughly $2,500 to $4,500 upgrade before design gets too far along. Confirm your water line can handle the added load through the Town's sizing form, and decide early between extending the shared furnace (with the required duct detector) or installing an independent mini-split system.

Protect your money on the way in: only work with a BCIN-holding designer, and structure contractor payments around passed inspection milestones rather than large amounts upfront.

Final Thoughts

A legal basement suite is one of the few home improvements in North Oakville that can genuinely pay for itself, through steady rental income and a real bump in resale value, but only if it's done by the book. The difference between legal and illegal isn't a technicality; it determines whether your insurance actually pays out, whether a bank counts the rent toward your next mortgage, and whether a tenant is genuinely safe if something goes wrong. Start with a zoning check, budget honestly for the mechanical and structural work your specific basement needs, and treat the Town's registry listing as the finish line, not an optional extra step.

Zoning bylaws, building code requirements, financing programs, and tax rules can change over time. Confirm current details with the Town of Oakville, a licensed designer or contractor, and a qualified accountant or lawyer before starting a project.

FAQs

How much ceiling height do I need for a legal basement in Ontario?

For most existing homes, the minimum finished ceiling height is 1.95 metres (6'5") across the main living area, with 1.85 metres allowed under beams or ductwork. Homes built in the last five years fall under a stricter standard of roughly 2.3 metres.

What actually makes a basement apartment legal in Ontario?

A basement apartment becomes legal once it complies with local zoning, meets Ontario Building Code standards for fire separation, egress, and ceiling height, and is formally inspected and registered with the municipality's secondary suite registry.

What size does a basement egress window need to be in Ontario?

An egress window needs an unobstructed opening of at least 0.35 square metres, with neither the height nor width under 380 mm, and at least 760 mm of clear horizontal space in front if it opens into a window well.

Do I need a permit to finish or legalize a basement in Ontario?

Yes. A building permit is required both to finish a basement and to convert or legalize it as a secondary suite, along with a separate Electrical Safety Authority application for the unit's wiring.

Can an existing illegal basement apartment be legalized?

Often, yes. Homeowners apply for what the Town processes as a change of use permit, basement Ontario projects most commonly need, though it usually involves opening existing walls and ceilings to verify fire separation and correcting anything that falls short of current code.

Does a separate hydro meter make a basement unit legal?

No. A separate meter is a billing convenience, not a legal designation. A suite is only legal once it meets zoning, building code, and registration requirements, regardless of how utilities are metered.

How much does it cost to legalize a basement apartment in Ontario?

Retroactively legalizing an existing unpermitted suite commonly runs $30,000 to $60,000 or more, while building a new legal suite from an unfinished basement typically runs $75,000 to $120,000 or more.

Does a legal basement apartment add value to a home in the GTA?

Generally, yes. A registered legal suite widens the pool of interested buyers, particularly first-time buyers and investors seeking mortgage-offsetting income, and can command a meaningful price premium over a home with an unfinished or unregistered basement.