💰 Transparent Pricing
How Much Does a Garden Suite Cost in Mississauga in 2026?
A turnkey single-storey garden suite in Mississauga starts from $169,900 with ARVO, before HST. The City waives building permit fees for garden suites and no Development Charges apply, so your budget goes into the building rather than municipal fees. A garden suite with a basement starts from $257,900 and a two-storey garden suite from $289,900. Your fixed price is confirmed once we have assessed your lot.
Mississauga garden suite pricing by type
| Suite type |
Turnkey price |
Size |
Typical layout |
Build time |
| Garden Suite | From $169,900 | 400 – 720 sq ft | Single storey · 1 – 3 bed / 1 – 2 bath | 14 – 18 weeks |
| Garden Suite + Basement | From $257,900 | 900 – 1,300 sq ft | Single storey + unfinished basement · 1 – 3 bed / 1 – 2 bath | 20 – 26 weeks |
| Two-Storey Garden Suite | From $289,900 | 1,000 – 2,000 sq ft | Two storeys (6.5 m height) · 2 – 4 bed | 20 – 30 weeks |
Starting prices, before HST. For scale, our completed 540 sq ft two-bedroom, two-bathroom suite in Mississauga is a single-storey garden suite.
What the turnkey price includes
| Item |
Description |
Included? |
| Architectural Design | Custom or pre-approved plans, stamped drawings | ✅ Included |
| Engineering | Structural, mechanical, electrical design | ✅ Included |
| Building Permit | City of Mississauga application | ✅ Fees waived by City |
| Permit Service | Full permit application handling by ARVO | ✅ Included |
| Site Preparation | Excavation, grading, foundation | ✅ Included |
| Construction | Framing, roofing, insulation, exterior finishes | ✅ Included |
| Mechanical & Electrical | HVAC, plumbing, electrical, fixtures | ✅ Included |
| Interior Finishing | Flooring, kitchen, bathroom, painting | ✅ Included |
| Utility Connections | Water, sewer, electrical to city services | ✅ Included |
| Inspections | All required building inspections to occupancy | ✅ Included |
| Total | Turnkey, ready to move in | From $169,900 |
* Prices exclude HST. City of Mississauga waives building permit fees for garden suites. 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.
What shapes the cost of a Mississauga garden suite
Mississauga's rules remove some costs and add others. We check each of these during the free feasibility review and price them into your fixed-price proposal before you sign — see also the site costs that most often catch homeowners out.
City fees
Building permit fees are waived for garden suites and no Development Charges apply, so neither appears in your budget. ARVO's permit service is included.
Design
We can build from the City's free pre-approved plans (studio 430 sq ft, one-bedroom 600 sq ft) or a custom design. Design and engineering drawings are included either way.
Going up or going down
With a 100 m² GFA cap and basements excluded from GFA, the biggest budget decision here is whether to add a second storey (from $289,900) or a basement (from $257,900).
Separate services
Mississauga requires separate utility meters and individual service laterals for the suite. The distance to the street connections sets how much trenching and pipe work is involved.
Electrical service
Whether the suite can be served without upgrading the property's existing electrical service is confirmed on site before pricing.
Survey and grading plan
The permit package includes a site plan on a current survey and a grading plan. Extensive grading or drainage correction beyond standard site preparation adds to the price.
Tight setbacks, tight access
Suites can sit as close as 0.6 m to rear and side lot lines. That maximises buildable area but can leave little working room, which affects equipment access and material delivery.
Tree protection
If trees near the build area need protecting, the permit needs a tree protection report. The arborist report is quoted separately.
Demolition and finishes
Removing an existing shed, garage or deck from the build area, and upgrades beyond the standard finish specification, are priced on top of the starting price.
Planning your budget? See what a garden suite costs in Toronto and the GTA in 2026, the rebates, loans and financing available this year, and the HST relief of up to $130,000 that owner-built homes may qualify for. Then browse the 17 permit-ready floor plans to see which sizes suit your lot.
