📍 Serving All Toronto Neighbourhoods

Build a Garden Suite in Toronto — Turnkey from $163,900

ARVO Backyard Homes designs, permits, and builds garden suites and laneway suites across Toronto. Fixed-price contracts. Permit service included. No hidden costs. Ready to move in within 14–26 weeks.

$163,900 Garden Suite starting price
14–18 wks Standard build time
400–1,300 sf Suite size range
Check My Backyard Eligibility → Request a Consultation
✓ Licensed & Insured GC
✓ As-of-Right, No Rezoning
✓ Fixed-Price Contract
✓ Bilingual Service 中英双语
🏡 The Basics

What Is a Garden Suite in Toronto?

A garden suite is a self-contained, detached home built in your rear yard, with its own kitchen, bathroom, entrance and utilities. In Toronto it is a permanent dwelling under the Ontario Building Code — not a shed, a studio, or a trailer — and it stays on your existing title as an Additional Residential Unit.

Garden suite vs laneway suite

Both are detached rear-yard homes. A laneway suite fronts onto a public laneway; a garden suite doesn't need one, which is why garden suites are possible on far more Toronto lots. Access for emergency services is handled through a walkway from the street instead.

What homeowners use them for

Long-term rental income, housing for aging parents or adult children, or a home office and guest suite. Because the suite is a legal dwelling unit, it can be rented on a standard lease.

What it takes

Enough rear-yard depth to meet setbacks and separation from the main house, a route for water, sewer and electrical service, and a building permit. No rezoning application in Toronto's residential zones.

Deciding whether one makes sense financially? See what a garden suite costs in Toronto and the GTA in 2026, the rebates, loans and financing available this year, and our honest take on whether a garden suite is worth the investment.

🏛 Toronto Zoning

Toronto Garden Suite Rules at a Glance

Since 2022, Toronto has permitted garden suites as-of-right across residential zones — updated in July 2025 by By-law 849-2025. No rezoning needed — just a building permit. Here's what the current rules look like.

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Maximum Size (By-law 849-2025)

Single-storey: max GFA 60 m² (646 sq ft). Two-storey: max GFA 120 m² (1,292 sq ft). GFA must be less than the main dwelling. Lot coverage: either 45% total for all buildings, or 20% of lot area for all ancillary buildings combined.

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Height & Storeys

If less than 7.5 m from main house: max 4.0 m (single storey). If 7.5 m or more from main house: max 6.3 m (two storeys possible). Separation: 4.0 m if height ≤ 4.0 m; 7.5 m if height > 4.0 m. Updated by By-law 849-2025.

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Eligible Zones

Permitted in R, RD, RS, RT, and RM residential zones under By-law 569-2013, as amended by By-law 849-2025 (adopted July 24, 2025). Properties under former municipal zoning (North York, Etobicoke, etc.) require confirmation from Toronto Buildings at 416-397-5330.

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Setbacks (By-law 849-2025)

Rear: 1.5 m (increased for lots > 45 m deep, or if upper-storey rear windows present). Side: 1.5 m or 10% of lot frontage (max 3.0 m) if openings exist. Corner lots: min 1.5 m or average of adjacent front setback. Separation from main house: 4.0 m (≤ 4.0 m height) or 7.5 m (> 4.0 m height).

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Parking & Access

No additional parking required for garden suites. Two bicycle parking spaces must be provided. A clear 1.0 m wide emergency access path from street to suite entrance is required.

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Tree Protection

Toronto's Private Tree By-law protects trees over 30 cm diameter. Each tree has a Critical Root Zone (10 cm diameter = 1.2 m CRZ radius). Arborist report required if trees overlap the build area.

🇨🇦 华人业主须知 — For Chinese-Canadian Homeowners

ARVO 雅筑 提供全程中英双语服务，从可行性评估到 permit 申请再到施工交付。 多伦多 Garden Suite 在住宅用地上属于 As-of-Right，不需要改变用途（rezoning）， 只需要 Building Permit。我们的报价包含 permit 代办服务（市政府 permit 费用由业主承担），没有隐藏收费。 欢迎微信或邮件咨询。

📋 Approvals

Garden Suite Permits in Toronto: How the Process Works

Garden suites are permitted as-of-right in Toronto's residential zones, so there is no rezoning application and no Committee of Adjustment hearing for a compliant design. What you need is a building permit — and the work is in getting the drawings and reports right before submission.

1 · Zoning review and site measurement

Confirm the suite size, height, setbacks, separation and lot coverage your specific lot allows under Zoning By-law 569-2013 as amended by By-law 849-2025. This is where most projects are won or lost.

2 · Drawings and supporting reports

Architectural, structural, mechanical and electrical drawings, a site plan on a current survey, plus whatever your lot triggers — arborist report and tree protection plan, grading and drainage, servicing details.

3 · Building permit application

ARVO prepares and submits the application to the City of Toronto and manages examiner comments through to permit issuance. City permit fees are paid by the owner.

4 · Inspections through to occupancy

Mandatory City inspections at footing, framing, insulation, and completion stages. We book and attend them as part of the build.

Two City programs can shorten this: free pre-approved garden and laneway suite plans, and the Professional Engineer's Seal program for qualifying designs. Both are covered in our 2026 Toronto rebates and programs guide. Province-wide, O. Reg. 462/24 changed what municipalities can require — worth knowing before you compare older advice.

🏡 Our Products

Garden Suite & Laneway Suite Packages

Every package is turnkey: architectural design, building permit, engineering, site prep, construction, utility hookup, and final inspection — all included.

Most Popular

Garden Suite

From $163,900

Size400 – 720 sq ft
Bedrooms1 – 3 bed / 1 – 2 bath
StoreysSingle storey
Build Time14 – 18 weeks
Permit ServiceIncluded
Best ForRental income, aging parents
Get a Quote →
Maximum Space

Garden Suite + Basement

From $249,900

Size900 – 1,300 sq ft
LayoutSingle storey + unfinished basement
Bedrooms1 – 3 bed / 1 – 2 bath
Build Time20 – 26 weeks
Permit ServiceIncluded
Best ForFamily living, future finishing, max ROI
Get a Quote →
Lane Access Required

Laneway Suite

From $189,700

Size500 – 1,300 sq ft
Bedrooms1 – 3 bed
StoreysUp to 2 storeys
Build Time18 – 24 weeks
Permit ServiceIncluded
Best ForLane-facing lots, independent entry
Get a Quote →
💰 Transparent Pricing

What Does a Garden Suite Cost in Toronto?

Our fixed-price contracts include everything from design to occupancy. Here's a typical cost breakdown for a standard single-storey garden suite in Toronto.

Item Description Included?
Architectural DesignCustom or pre-approved plans, stamped drawings✅ Included
EngineeringStructural, mechanical, electrical design✅ Included
Building PermitCity of Toronto application and fees⚠️ Paid by owner
Permit ServiceFull permit application handling by ARVO✅ Included
Site PreparationExcavation, grading, foundation✅ Included
ConstructionFraming, roofing, insulation, exterior finishes✅ Included
Mechanical & ElectricalHVAC, plumbing, electrical, fixtures✅ Included
Interior FinishingFlooring, kitchen, bathroom, painting✅ Included
Utility ConnectionsWater, sewer, electrical to city services✅ Included
InspectionsAll required building inspections to occupancy✅ Included
TotalTurnkey, ready to move inFrom $163,900

* Prices exclude HST. City of Toronto building permit fees are paid directly by the owner. Site-specific conditions (extensive grading, long utility runs, tree protection) may affect final pricing. Arborist report quoted separately if required. Final price confirmed after free feasibility assessment.

🔨 Design-Build in Toronto

Your Toronto Garden Suite Builder

Design, permit and construction under one contract. Most homeowners assemble a designer, an engineer, a permit expediter and a general contractor separately, then coordinate them — ARVO carries all four. One fixed-price contract runs from the first site measurement to the final inspection, which is why the drawings that get approved are the drawings we build.

Design

Seventeen permit-ready garden and laneway suite plans from 320 to 1,694 sq ft, or a custom design where the lot calls for one. Browse the floor plans →

Permit

Full building permit application handling for the City of Toronto, including the supporting reports your lot triggers. Included in the contract; City fees are paid by the owner.

Construction

Licensed and insured general contractor. Foundation through framing, envelope, mechanical, interior finishing and every City inspection to occupancy.

Bilingual service

The whole process — feasibility, permit, construction and handover — in English or Mandarin. 中英双语全程服务。

Recent ARVO work in Toronto

Completed 630 sq ft garden suite built by ARVO in Toronto
630 sq ft garden suite
Toronto · Completed · 16-week build
Completed 450 sq ft compact garden suite built by ARVO in Toronto
450 sq ft compact garden suite
Toronto · Completed · 20-week build
Two-storey 1,300 sq ft laneway suite under construction in downtown Toronto
1,300 sq ft two-storey laneway suite
Downtown Toronto · In construction
Three-storey four-unit fourplex under construction in downtown Toronto
4,000 sq ft fourplex, 4 units
Downtown Toronto · In construction
Check My Backyard Eligibility →

Takes about a minute and tells you what size of suite your lot can support. See every ARVO project across the GTA, or compare local rules in Mississauga and Markham.

🔧 How It Works

From Inquiry to Move-In: 5 Steps

Our streamlined process handles every step so you don't have to navigate City Hall, hire separate consultants, or coordinate trades.

Free Feasibility Check

We review your property address, zoning, lot dimensions, and rear yard conditions. You'll know within 48 hours if your property qualifies and get a preliminary budget range.

Design & Proposal

Choose a suite configuration. We prepare architectural plans, engineering scope, and a fixed-price proposal. No surprises — what you sign is what you pay.

Permit Application

We handle the full building permit application with the City of Toronto, including drawings, surveys, and any tree or grading reports. Typical review: 6–10 weeks.

Construction

Our in-house team builds your suite. Weekly progress updates. All trades coordinated under one general contractor. Build time: 14–26 weeks depending on configuration.

Inspection & Handover

Final building inspection, occupancy clearance, and walkthrough with you. Your suite is ready for family, tenants, or whatever you have planned.

❓ Common Questions

Toronto Garden Suite FAQ

Answers to the most common questions Toronto homeowners ask about building a garden suite or laneway suite.

Can I build a garden suite on my Toronto property?

Most likely yes. Garden suites are permitted as-of-right in Toronto's residential zones (R, RD, RS, RT, RM) under Zoning By-law 569-2013, as amended by By-law 849-2025 (adopted July 24, 2025). The main requirements are sufficient rear yard space, setback clearances, separation distance from the main house, and emergency access. Properties under former municipal zoning (like old North York or Etobicoke by-laws) may need confirmation from Toronto Buildings at 416-397-5330. Our free feasibility check covers all of this.

How much does a garden suite cost in Toronto?

A turnkey single-storey garden suite starts from $163,900 with permit service included (City permit fees paid by owner). Garden Suite + Basement configurations start from $249,900. Laneway suites start from $189,700. Final cost depends on suite size, site conditions, utility connection distances, and finishing selections. Our fixed-price contracts mean no surprises after signing.

Do I need to pay Development Charges?

Garden suites qualifying as Additional Residential Units (ARUs) are currently exempt from Development Charges in Toronto. In 2025, Council also extended DC exemptions for properties with up to six units. This saves you tens of thousands of dollars compared to typical new construction.

Can I add a basement to my garden suite?

Yes. Basements are permitted for garden suites. Note that under By-law 849-2025, the basement area is included in the garden suite's interior floor area calculation. However, the primary dwelling's basement can be excluded from its GFA — which helps ensure your garden suite GFA stays below the main house. Our Garden Suite + Basement package starts from $249,900 and includes a single-storey suite with an unfinished basement, giving you 900–1,300 sq ft of total space.

Can I rent out my garden suite?

Yes. Garden suites are self-contained dwelling units with their own kitchen, bathroom, and separate entrance. They can be rented as long-term rentals. In Toronto's rental market, a well-designed garden suite can generate $2,000–$3,000+ per month in rental income depending on size, location, and finishes.

How long does the permit process take?

A complete building permit submission typically takes 6–10 weeks for City of Toronto review. The City also offers a Certified Plans Program that can reduce review timelines for qualifying designs. If a minor variance is needed (uncommon with our designs), add 3–4 months for Committee of Adjustment. ARVO's permit service handles the entire application process — City permit fees are paid directly by the owner.

What about the HST rebate?

If a family member occupies the garden suite as their primary residence (common in multi-generational households), you may qualify for the Ontario New Housing Rebate — up to approximately $16,080 in HST savings. This is a significant benefit for families building suites for parents or adult children. We can walk you through eligibility.

Garden suite vs. laneway suite — what's the difference?

Both are detached secondary dwellings in the rear yard. A laneway suite fronts onto a public lane (alley) and must share a lot line with it. A garden suite is on a property without lane access. The zoning rules differ slightly — laneway suites can sometimes have reduced side setbacks and different fire access requirements. We'll identify which applies to your property during the feasibility check.

Ready to Explore a Garden Suite
for Your Toronto Property?

Start with the free backyard eligibility check — about a minute, and it tells you what size of suite your Toronto lot can support. From there we'll confirm zoning, lot feasibility and a preliminary budget. No obligation.

Check My Backyard Eligibility → Request a Consultation