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Serving New Tecumseth — Alliston, Beeton & Tottenham
Modular Homes in New Tecumseth, Ontario
Factory-direct modular homes and backyard suites for the Town of New Tecumseth — Alliston, Beeton, and Tottenham. New Tecumseth permits a detached additional residential unit on most residential lots, on municipal services or, on a rural lot, a private well and septic. Here's what the by-law allows.
What you can build in New Tecumseth
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 New Tecumseth'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 New Tecumseth 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? (New Tecumseth lots typically allow up to up to ~861 sq ft)
New Tecumseth allows a detached unit up to 50% of your home, to a max of 80 m² (≈861 sq ft). Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact New Tecumseth address →Can you put a garden suite (ADU) in your New Tecumseth backyard?
Often, yes — New Tecumseth permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from New Tecumseth Zoning By-law 2021-128 §2.1.1 (Additional Residential Units):
| Max size | 50% of your home, to a max of 80 m² (≈861 sq ft) |
|---|---|
| Max height | 6.5 m (≈21 ft), never taller than your house |
| Setbacks | 1.2 m (≈4 ft) rear (0.6 m at a laneway) & interior side; not in the front or exterior side yard |
| Units per lot | One detached unit (+ optionally one inside the home = 3 units) |
| Parking | 1 space for the first unit (tandem OK); 0 for a second |
| Servicing | Municipal services where the home is serviced; private well + septic permitted on rural/hamlet lots |
| Conservation | Nottawasaga Valley Conservation Authority (NVCA) |
Grants & financing in New Tecumseth
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 →
New Tecumseth modular homes — FAQ
Can you build a backyard suite in New Tecumseth?
Yes. New Tecumseth permits a detached additional residential unit (up to 50% of your home / 80 m²) on single-detached, semi-detached, and townhouse lots in Alliston, Beeton, Tottenham and the rural areas, on municipal services or a private well and septic.
How big can an ADU be in New Tecumseth?
A detached unit can be up to 50% of your home’s gross floor area, to a maximum of 80 m² (≈861 sq ft), and no taller than 6.5 m or your house. Check your address for the specifics.
Can you put a modular home in New Tecumseth?
Yes. On land you own, a modular home on a permanent foundation is legal residential housing under the Ontario Building Code throughout New Tecumseth, subject to standard zoning and permits.
How much does a modular home or backyard suite cost in New Tecumseth?
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 New Tecumseth?
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 New Tecumseth Zoning By-law 2021-128 §2.1.1 (Additional Residential Units); verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the City of New Tecumseth before you build.