Home/Modular Homes by City/Markham
Serving Markham & York Region
Modular Homes in Markham, Ontario
Factory-direct modular homes and backyard suites for Markham and York Region. Markham calls a detached backyard unit a “Garden Home” — here's what's allowed, what it costs, and the by-law that applies.
What you can build in Markham
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 Markham'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 Markham 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? (Markham lots typically allow up to ~700 sq ft)
Markham allows the greater of 60 m² (≈646 sq ft) or 50% of your home — bigger houses can host bigger suites. Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact Markham address →Can you put a garden suite (ADU) in your Markham backyard?
Often, yes — Markham permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from City of Markham Comprehensive Zoning By-law 2024-19, §4.9.10 (Garden Homes):
| Max size | The greater of 60 m² (≈646 sq ft) or 50% of your home’s gross floor area |
|---|---|
| Max height | 4.5 m (≈15 ft) |
| Setbacks | 1.2 m (≈4 ft) rear and interior side; 6.0 m (≈20 ft) separation from the main building. Rear yard only, within 30 m (≈98 ft) of a street. |
| Parking | 1 space per unit |
| Servicing | Municipal water & sewer required |
| Conservation | Toronto and Region Conservation Authority (TRCA) |
Grants & financing in Markham
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 →
Markham modular homes — FAQ
Can you put a Garden Home (ADU) in Markham?
Yes. Markham permits a detached “Garden Home” on most serviced residential lots with a house — subject to size, height, and setback rules and a building permit.
How big can a Garden Home be in Markham?
The greater of 60 m² (≈646 sq ft) or 50% of your home’s gross floor area — so a larger house allows a larger suite. It must sit in the rear yard with a 6 m (≈20 ft) separation. Check your address for the specifics.
Can you put a modular home in Markham?
Yes. On land you own, a modular home on a permanent foundation is legal residential housing under the Ontario Building Code throughout Markham, subject to standard zoning and permits.
How much does a modular home or backyard suite cost in Markham?
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 Markham?
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 City of Markham Comprehensive Zoning By-law 2024-19, §4.9.10 (Garden Homes); verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the City of Markham before you build.