Why People Call It A Grant - And Why The Official Language Matters
Most homeowners search for a London ARU grant because the funding may be forgiven if the project follows the program rules. The City, however, describes the incentive as an Additional Residential Unit Loan and an Affordable Detached ARU Forgivable Loan. That distinction matters because the money is tied to eligibility, timing, affordability, and compliance. If you came here through plain-language searches like garden suite grant or backyard home grant, this page is the official-language bridge.
In plain English: it may function like a grant if the requirements are met over the required period, but homeowners should treat it as a forgivable loan program, not automatic free funding.
What The Affordable Detached ARU Stream Can Offer
The affordable detached ARU stream can provide up to $45,000 per eligible unit, subject to City program rules. For homeowners planning a garden suite, backyard home, or detached ARU, this can help offset the cost of construction, servicing, design, permits, and other project expenses.
The key is timing. The application must be made before work begins, and funds are generally issued after the ARU is created and paid for. That means the loan can help the project, but it may not solve the full upfront cash-flow requirement.
The Big Eligibility Screens Homeowners Should Check First
Before relying on the $45,000 loan, confirm the major program screens. A property can look like a good backyard suite candidate and still run into issues with owner-occupancy, zoning, rental licensing, short-term rental restrictions, servicing, or affordability requirements.
- The primary dwelling must be owner-occupied
- Only one eligible ARU per property may qualify
- The detached ARU must comply with zoning
- The unit must receive and maintain a Residential Rental Unit Licence
- The unit cannot be used as short-term accommodation
- The project must follow the affordability and CMHC rent-cap rules
- The application should be submitted before work begins
The Loan Does Not Override Zoning
The loan program does not make every backyard buildable. A detached ARU still needs to work with the property’s zoning, lot coverage, setbacks, location rules, services, and permit requirements. This is why the first step should be an address-based screen, not choosing a floor plan.
Check the address first, then decide whether a design is worth paying for.
The 10-Year Affordability Period And CMHC Rent Cap
The affordable detached ARU stream requires a minimum 10-year affordability period. During that time, rent is capped at 100% of CMHC Average Market Rent. Use the CMHC rent cap calculator to model the current planning values before you rely on the numbers.
- 1-bedroom ARU: $1,371/month
- 2-bedroom ARU: $1,645/month
Verify current CMHC Average Market Rent values before applying, because rent-cap numbers can change over time.
Apply Before Work Begins - This Is The Big Timing Risk
The City incentive page tells applicants to apply before the project begins, and funding is issued after the ARU is created and paid for. The practical takeaway is simple: do the loan, zoning, permit, and financing homework before signing construction commitments.
If you start construction, order work, or commit to the project too early, you may put funding eligibility at risk.
The Loan May Not Cover The Upfront Cash Need
The $45,000 loan can materially improve the project, but homeowners still need to think through cash flow. Design, engineering, deposits, servicing, permits, and construction costs may need to be paid before the funding is received.
Review the loan alongside home equity, refinancing, builder payment terms, contingency budget, and capped rental income.
FAQ
Common Questions About The London ARU Grant And Forgivable Loan
Is the London ARU grant really a grant?
Homeowners commonly search for a grant, but the City uses loan and forgivable loan language. The affordable detached ARU stream may forgive up to $45,000 when the program requirements are met. It should be treated as a forgivable loan program, not automatic free funding.
Who can qualify for the $45,000 detached ARU forgivable loan?
Eligibility depends on City program rules, including owner-occupancy, one ARU per property, zoning compliance, affordability requirements, rental licensing, and no short-term accommodation use. The property also needs to work from a zoning, permit, servicing, and construction standpoint.
Do I need to apply before construction starts?
Yes. The application should be submitted and approved before work begins. If you start construction or make commitments too early, you may risk funding eligibility.
Can I charge full market rent?
Not under the affordable detached ARU forgivable loan stream. Rent is capped at 100% of CMHC Average Market Rent during the affordability period. Use the rent-cap calculator before assuming the project cash flow works.
Can I use the unit as an Airbnb or short-term rental?
No. The City incentive requirements state that the unit cannot be used for short-term accommodation.
Does the $45,000 loan mean my backyard is buildable?
No. The loan does not override zoning, setbacks, lot coverage, servicing, building permits, rental licensing, or development charge review. The property still needs to be checked before a design or builder quote is relied on.
When do I receive the funds?
The City program indicates that funding is issued after the ARU is created and paid for. Homeowners should plan for upfront project costs and confirm the current program process before committing.
Is this only for detached backyard units?
This page focuses on the affordable detached ARU forgivable loan stream. London also has broader ARU rules for interior units, basement suites, garage conversions, additions, and detached units, but each path has different requirements.
Check The Eligibility Screens Before You Spend
Run the Backyard Audit to screen the major early questions: zoning, setbacks, owner-occupancy, lot coverage, servicing risk, equity, and CMHC rent assumptions.
Check Eligibility Screens