Home/Modular Homes by City/Oakville
Serving Oakville & Halton Region
Modular Homes in Oakville, Ontario
Factory-direct modular homes and backyard suites for Oakville and Halton Region. Here's what Oakville's additional-dwelling-unit by-law allows in your backyard, what it costs, and the rules that apply.
What you can build in Oakville
Full modular homes — from $175,696. 29 models from 560 to 1,405 sq ft, 1–3 bedrooms — factory-built to the Ontario Building Code and set on a permanent foundation (a real, permanent house, not a “trailer”).
Backyard suites (ADUs) — from $96,244. 7 compact models built for garden-suite and in-law-suite use, sized to fit what Oakville's by-law allows.
All homes are CSA-certified (A277 modular / Z240MH manufactured), finished in the factory, and delivered ready for foundation and hook-up. What's the difference between modular, manufactured, and mobile? →
Find your backyard suite — 3 quick questions
We'll narrow the models that fit a typical Oakville backyard allowance to the ones that fit your life. No email needed.
1 · Who's it for?
2 · What layout?
3 · What size feels right? (Oakville lots typically allow up to ~750 sq ft)
Oakville allows up to 100 m² (≈1,075 sq ft) — but the suite must architecturally complement your home. Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact Oakville address →Can you put a garden suite (ADU) in your Oakville backyard?
Often, yes — Oakville permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from Oakville Zoning By-law 2014-014 (as amended by By-law 2020-057):
| Max size | Up to 100 m² (≈1,075 sq ft); detached structures capped at 40% lot coverage |
|---|---|
| Max height | 6.0 m (≈20 ft) |
| Setbacks | 0.6 m (≈2 ft) rear; 0.9 m (≈3 ft) side |
| Parking | None required |
| Design | Materials, colour, and roof pitch must match or complement the main house; low-flow fixtures required |
| Servicing | Municipal water & sewer required |
| Conservation | Credit Valley Conservation (CVC) and Conservation Halton |
Grants & financing in Oakville
See every program → Ontario ADU Grants Directory
A modular or prefab home on a permanent foundation is financed like any house. CMHC Prefab Plus allows an insured mortgage with as little as 5% down on the first $500,000, with construction funds released in stages. How modular home financing works →
Thinking of the suite as a rental? Run the numbers →
Oakville modular homes — FAQ
Can you put a backyard suite in Oakville?
Yes — on most serviced residential lots, with a building permit. Note that suites are not permitted in the Lakeshore character areas or the Old Oakville Heritage Conservation District.
How big can a backyard suite be in Oakville?
Up to 100 m² (≈1,075 sq ft), with detached structures capped at 40% lot coverage — and the suite’s materials, colour, and roofline must complement your home. Check your address for the specifics.
Can you put a modular home in Oakville?
Yes. On land you own, a modular home on a permanent foundation is legal residential housing under the Ontario Building Code throughout Oakville, subject to standard zoning and permits.
How much does a modular home or backyard suite cost in Oakville?
Modular home models start at $175,696 and run to about $338,000 for the largest layouts; backyard ADU models start at $96,244. Site work, foundation, delivery, and permits are additional.
Can I get a mortgage on a modular home in Oakville?
Yes — on a permanent foundation it is financed as real property, including via CMHC Prefab Plus (5% down on the first $500,000).
Local rules summarized from Oakville Zoning By-law 2014-014 (as amended by By-law 2020-057); verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the City of Oakville before you build.