Mississauga · Toronto · GTA
Modular X designs, permits and builds garden suites & laneway suites across Mississauga, Toronto and the GTA — from feasibility to keys.
Two Ways To Build
Both routes are turnkey — same accountable team, same standard of finish.
Full Custom Build
Site-built from the ground up to your exact vision. Ideal for unique lots, distinctive architecture, or when you want every detail bespoke.
Modular Install
We prep the site and pour the slab while your unit is built off-site in a controlled factory. Faster timelines, predictable pricing, minimal weather risk.
Instant Zoning Lookup
Type your address. We pull your zone code straight from the City of Toronto or Mississauga zoning map and tell you, in plain English, whether a garden suite is on the table. No email required to see your result.
How Modular Works
Factory build and on-site work run in parallel. Install day is a single crane pick and a set of pre-run utility connections.
Our Models
A sample of the pre-approved layouts we deliver turnkey. Six total across Mississauga and Toronto.
Mississauga
Open-concept living, kitchen and sleeping zone plus a separate 3-piece bath. Fits the widest range of lots.
Mississauga
Distinct living, full kitchen, separate bedroom and a 3-piece bath. A real second home in the backyard.
Toronto
Two bedrooms, full kitchen and living. Toronto pre-reviewed for OBC + zoning — reference the plan number in your permit.
Why A Garden Suite
Ontario's Bill 23 now permits up to three units as-of-right on most serviced residential lots — turning your backyard into a real asset.
A self-contained rental in your own backyard — legal, long-term monthly cash flow.
Aging parents close by, adult kids with real independence — without the mortgage stretch.
A permitted, code-compliant second dwelling adds durable equity to your property.
Interiors
Every Modular X interior is finished to primary-home standard — engineered floors, real stone, cabinet-grade millwork.
Investment Math
A conservative illustrative model of what a permitted one-bedroom garden suite can do in the GTA. Your actual numbers depend on lot, finish level and financing — we run them with you at feasibility.
Full Build vs Modular
A side-by-side of how the two paths compare on the things that actually matter.
| Criteria | Full Custom Build | Modular Install |
|---|---|---|
| Typical timeline | 9–14 months on-site | 5–8 months (parallel factory + site) |
| Site disruption | Extended — full trade sequencing | Compressed — single crane day |
| Weather risk | Higher — winter delays common | Lower — most work is indoors |
| Customization | Fully bespoke architecture | Curated finishes on a fixed shell |
| Pricing predictability | Line-item quote, some contingency | Fixed unit price + site allowance |
| Best for | Unique lots & signature homes | Speed, rentals & tight budgets |
The Pre-Approved Plan Advantage
Both Mississauga and Toronto publish free pre-reviewed suite designs. Modular X delivers them turnkey — custom builds too.
These cities work with homeowners — pre-approved plans cut soft costs and shave weeks off approvals. Modular X delivers them turnkey.
How It Works
From the free feasibility check to the day you hand a tenant the keys — email us or use the form, we respond within one business day.
Free check on zoning, setbacks, servicing and lot access — a clear yes/no in days.
Choose a pre-approved model or a custom design tailored to your lot and budget.
We handle site plan, grading plan, applications and minor variances end-to-end.
Excavation, servicing and foundation or slab pour on your lot.
Full site build, or crane-in modular install of your factory-built unit.
Final inspections, utility connections and keys — you take over a permitted home.
Design Gallery
A snapshot of finishes, elevations and install-day moments from Modular X sites.
At Dusk
Homeowners
They walked us through every permit and inspection. We just picked finishes and got the keys.
Modular install was done in a fraction of the time we expected. Neighbours barely noticed.
My parents moved in six months after our first meeting. Best decision we've made.
FAQ
More questions? Get in touch.
Yes — a garden or laneway suite is a dwelling unit and requires a building permit. We handle the full application, including site and grading plans.
Let's Build
Start with a two-minute feasibility check. No obligation, no pressure — just a clear read on what's possible.