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Serving Clarington & Durham Region
Modular Homes in Clarington, Ontario
Factory-direct modular homes and backyard suites for Clarington and Durham Region. Here's what Clarington's additional-dwelling-unit by-law allows in your backyard, what it costs, and the rules that apply.
What you can build in Clarington
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 Clarington'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 Clarington 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? (Clarington lots typically allow up to ~700 sq ft)
Clarington has no fixed size cap — a detached suite just must be smaller than your house. Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact Clarington address →Can you put a garden suite (ADU) in your Clarington backyard?
Often, yes — Clarington permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from Municipality of Clarington Zoning By-laws 84-63 and 2005-109 (Bill 23 conformity):
| Max size | No fixed square-footage cap — a detached suite just must be smaller than your main house’s floor area |
|---|---|
| Max height | 5.25 m (≈17 ft) in urban residential zones; 6.5 m (≈21 ft) in Agricultural / Rural Residential zones |
| Units per lot | Up to 2 ADUs — one inside the main home plus one in an accessory building |
| Parking | 1 space per ADU |
| Servicing | Municipal services or a private well/septic |
| Conservation | Central Lake Ontario Conservation Authority (CLOCA) |
Grants & financing in Clarington
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 →
Clarington modular homes — FAQ
Can you put a backyard suite in Clarington?
Yes. Clarington permits up to two additional dwelling units per lot — one inside the main home plus one in an accessory building — subject to the rules and a building permit.
How big can a backyard suite be in Clarington?
There’s no fixed square-footage cap — a detached suite just has to be smaller than your main house. Check your address for the specifics.
Can you put a modular home in Clarington?
Yes. On land you own, a modular home on a permanent foundation is legal residential housing under the Ontario Building Code throughout Clarington, subject to standard zoning and permits.
How much does a modular home or backyard suite cost in Clarington?
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 Clarington?
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 Municipality of Clarington Zoning By-laws 84-63 and 2005-109 (Bill 23 conformity); verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the City of Clarington before you build.