Home/Modular Homes by City/Brock
Serving Brock — Beaverton, Cannington & Sunderland (Durham Region)
Modular Homes in Brock, Ontario
Factory-direct modular homes and backyard suites for the Township of Brock — Beaverton, Cannington, and Sunderland. Brock permits an as-of-right second unit, including a detached suite in your backyard. Here's what the by-law allows, what it costs, and the rules that apply.
What you can build in Brock
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 Brock'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 Brock 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? (Brock lots typically allow up to ~700 sq ft)
Brock caps a second unit at 50% of your home’s floor area (minimum unit 32 m² / 344 sq ft). Height and yard setbacks follow your zone’s accessory-building standards. Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact Brock address →Can you put a garden suite (ADU) in your Brock backyard?
Often, yes — Brock permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from Township of Brock Restricted Area (Zoning) By-law 287-78-PL §6(n) “Secondary Unit” (office consolidation to July 2022):
| Max size | Up to 50% of your home’s gross floor area (no fixed m² cap), with a minimum unit size of 32 m² (≈344 sq ft) |
|---|---|
| Where it goes | Inside the house OR in a detached accessory building/structure — a true backyard suite. Up to two units in the dwelling (if none detached), or one in the dwelling plus one detached. |
| Height & setbacks | Follow your zone’s accessory-building standards — confirm the exact numbers for your specific zone (urban residential vs. rural) |
| Parking | 1 space for the second unit (tandem permitted) |
| Servicing | Beaverton, Cannington & Sunderland are on municipal water & sewer; rural lots are private well + septic, which needs Region of Durham Health Department approval |
| Conservation | Lake Simcoe Region Conservation Authority (LSRCA) — Beaverton fronts Lake Simcoe, so shoreline or floodplain lots may need an LSRCA permit. Eastern Brock may fall under Kawartha Conservation. |
Grants & financing in Brock
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 →
Brock modular homes — FAQ
Can you put a garden suite in Brock (Beaverton, Cannington, Sunderland)?
Yes — Brock’s zoning by-law permits an as-of-right second unit, and it may be inside the house or in a detached accessory building (a backyard suite). It’s capped at 50% of your home’s floor area, needs 1 parking space, and requires a building permit. On a rural lot, Region of Durham Health Department approval of the well and septic is the key step.
How big can a backyard suite be in Brock?
Up to 50% of your home’s gross floor area, with a minimum unit size of 32 m² (≈344 sq ft) — there’s no fixed maximum m² cap. Height and yard setbacks follow your zone’s accessory-building standards, so check your address for the specifics.
Can you put a modular home in Brock?
Yes. On land you own, a modular home on a permanent foundation is legal residential housing under the Ontario Building Code throughout the Township of Brock, subject to standard zoning, conservation rules, and permits.
How much does a modular home or backyard suite cost in Brock?
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 Brock?
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 Township of Brock Restricted Area (Zoning) By-law 287-78-PL §6(n) “Secondary Unit” (office consolidation to July 2022); verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the City of Brock before you build.