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Serving the Town of Gore Bay (Manitoulin Island)
Modular Homes & Garden Suites in Town of Gore Bay, Ontario
Factory-direct modular homes and backyard suites for the Town of Gore Bay — the administrative seat of Manitoulin District, on the island's north shore. Gore Bay's Zoning By-law 2022-24 (§4.1.1) permits an Additional Residential Unit as-of-right — including a detached backyard suite — on serviced in-town lots and rural well & septic lots. Here's what the by-law allows, what it costs, and the rules that apply.
What you can build in Town of Gore Bay
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 Town of Gore Bay'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 Town of Gore Bay 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? (Town of Gore Bay lots typically allow up to no fixed cap)
Gore Bay sets no fixed floor-area cap — a detached suite is limited to 10% of your lot area and 5.0 m tall. It's as-of-right in the Residential (R1), Residential Multiple (R2) and Rural (RU) zones — not the waterfront Shoreline Residential (SR) zone. Enter your address to check your zone and servicing. Your exact lot may allow more or less — get the real number for your address in seconds.
Check your exact Town of Gore Bay address →Can you put a garden suite (ADU) in your Town of Gore Bay backyard?
Often, yes — Town of Gore Bay permits a detached Additional Residential Unit on most serviced residential lots. The specifics, from Town of Gore Bay Zoning By-law 2022-24, §4.1.1 — Additional Residential Units:
| Max size | No fixed m² cap — a detached suite is limited to 10% of your total lot area (§4.1(e)). A bigger lot means a bigger suite. |
|---|---|
| Where it goes | As-of-right in the Residential (R1), Residential Multiple (R2) and Rural (RU) zones — one detached suite plus one attached (in-house) unit are permitted per lot. NOT permitted in the waterfront Shoreline Residential (SR) zone. |
| Height & setbacks | 5.0 m (≈16 ft) tall, in every zone that permits the suite. Lot-line setback depends on your zone: 2.0 m (≈7 ft) in R1, 2.5 m (≈8 ft) in R2, 3.0 m (≈10 ft) in RU — plus a 2.0 m (≈7 ft) gap from your main house everywhere. |
| Parking | 1 additional space for the suite. |
| Servicing | Municipal water & sewer in the town core, or private well & septic on a rural lot — you have to show the existing system can handle the added unit before it's approved. |
| Conservation & waterfront | No conservation authority operates anywhere on Manitoulin Island — hazard review runs through the Town's Official Plan and the Manitoulin Planning Board. A separate, older "Garden Suite" provision (portable, 20-year limit, capped at 40% of your house's floor area) exists alongside the standard suite above — most homeowners want the as-of-right unit, not this one. |
Check your specific Town of Gore Bay address →
Garden suite, laneway suite, in-law suite, ARU, ADU — different names for the same thing: a small, self-contained home in the backyard. New to the idea? Start with what a garden suite costs in Town of Gore Bay, and the models that fit →
Town of Gore Bay's by-law is verified in our checker, so you can check if a garden suite is allowed at your Town of Gore Bay address in about a minute.
Getting your building permit in Town of Gore Bay
An eligible lot still needs a building permit before anything is delivered. Here's how Town of Gore Bay's process actually works — verified against the Town of Gore Bay building department's own pages.
How do you apply for an ADU building permit in Town of Gore Bay?
Through Paper application (no online portal) — shared West Manitoulin Building Department. No online portal. Two complete sets of the application, drawings, and site plan — PDF format only, photos of paperwork are explicitly not accepted — are submitted by email (CBOwestmanitoulin@outlook.com), in person at the Municipal Office, by mail, or dropped off at the Gordon/Barrie Island Township Office. Town of Gore Bay's building-permit page ↗
- Confirm zoning — an Additional Residential Unit is as-of-right under Zoning By-law 2022-24 §4.1.1 in the R1, R2 and RU zones (10% lot-area cap, 5.0 m height, 2.0-3.0 m setback by zone, 1 parking space).
- Complete the Gore Bay Building Application and Energy Efficiency Design Form, available on the Town's website.
- Retain a designer to prepare two complete sets of drawings — foundation, structural details, and all elevations — plus a site plan showing measurements to all four lot lines, the principal dwelling, and any other structures on the property.
- If you're on private services, confirm your well and septic system can accommodate the added unit (§4.1.1(e)) — Public Health Sudbury & Districts (PHSD) is the OBC Part 8 authority for all of Manitoulin.
- Submit both complete sets as PDFs together, by email to the Chief Building Official, in person at the Municipal Office, by mail, or dropped off at the Gordon/Barrie Island Township Office.
- Pay the applicable fees once the Town confirms the amount, and respond to any review comments.
- Book inspections (foundation, framing, plumbing/electrical/HVAC, final occupancy) with the CBO in advance.
What does a Town of Gore Bay ADU permit application need?
- Completed application form, dated and signed
- Drawings of the proposed structure — foundation details, structural details, and all elevations (two complete sets)
- Manufacturer drawings, for a steel or engineered structure
- A site plan showing the proposed location, with measurements to all four lot lines, the principal dwelling, and any other structures on the property
- Energy Efficiency Design Form
How much does an ADU building permit cost in Town of Gore Bay?
Gore Bay has not published a building-permit fee by-law or schedule online as of August 2026 — get a project-specific quote from the Chief Building Official before budgeting; the estimates below are limited to what's independently confirmed.
| Building permit fee | Not published online — contact the Chief Building Official (Chris Meloche, CBOwestmanitoulin@outlook.com, 705-956-0472) for a project-specific quote. |
|---|---|
| Septic system permit (OBC Part 8) | Set and collected separately by Public Health Sudbury & Districts (PHSD), the district-wide septic authority for all of Manitoulin — confirm the current rate directly with PHSD. |
| Zoning by-law amendment (only if your project needs one, e.g. a waterfront SR-zoned lot) | A separate Manitoulin Planning Board application, with its own fee — not needed for the as-of-right Additional Residential Unit path. |
A qualifying additional residential unit is generally exempt from municipal development charges under the Development Charges Act (Bill 23) — confirm the current treatment, and whether Gore Bay has a development charges by-law at all, with the Town.
How long does an ADU building permit take in Town of Gore Bay?
Ontario's Building Code requires a decision on a complete house-class application within 10 business days
Worth knowing before you apply
- There's no dedicated Additional Residential Unit checklist — apply using the Town's standard 'Permit to Construct or Demolish' form and the general drawing/site-plan requirements above.
- No online portal, unlike most townships now on Cloudpermit — everything is submitted as PDFs by email, mail, or in person, and pictures of paperwork are explicitly rejected.
- The Chief Building Official is shared across West Manitoulin — drop-off is accepted at the Gordon/Barrie Island Township Office as well as Gore Bay's own Municipal Office.
- The Town hasn't published its building-permit fee schedule online — get a written quote from the CBO before you budget, rather than assuming a number.
- Manitoulin has no conservation authority, so there's no CA permit step — but a lot abutting Lake Huron or an inland waterbody still needs to clear the by-law's own 15 m/30 m waterfront setback (§4.26) before a permit is issued.
Fees and timelines are estimates from Town of Gore Bay's published schedules, verified August 31, 2026. Rates and processes change — always confirm current requirements with the building department before you apply.
Grants & financing in Town of Gore Bay
Development-charge exemption for additional units — A qualifying additional residential unit is generally exempt from municipal development charges under the Development Charges Act (Bill 23) — confirm the current treatment with the Town.
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 →
Town of Gore Bay modular homes — FAQ
Can you build a garden suite / ADU in Gore Bay?
Yes — the Town's Zoning By-law 2022-24 (§4.1.1) permits an Additional Residential Unit as-of-right, including a detached backyard suite, in the Residential (R1), Residential Multiple (R2) and Rural (RU) zones. It's not permitted in the waterfront Shoreline Residential (SR) zone. A building permit is required.
How big can a backyard suite be in Gore Bay?
There's no fixed m² cap — a detached suite is limited to 10% of your total lot area and 5.0 m (≈16 ft) tall. Enter your address for the specifics.
Can you build an ADU on well and septic in Gore Bay?
Yes. Private well and septic servicing is permitted for a detached ADU where municipal water and sewer aren't available, provided you can demonstrate the existing system has capacity for the added unit. Most of the town core is on municipal water and sewer; rural Gore Bay is on private services.
Can you put a modular home in Gore Bay, Ontario?
Yes. Gore Bay's Zoning By-law explicitly defines a CSA-certified modular home on a prepared foundation as a single detached dwelling — legal residential housing under the Ontario Building Code, as the principal dwelling or as an additional residential unit.
How much does a modular home or backyard suite cost in Gore Bay?
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 Gore Bay?
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 Town of Gore Bay Zoning By-law 2022-24, §4.1.1 — Additional Residential Units; verified by Modular Homes 400 and reviewed by James Clarke, REALTOR®. Always confirm current requirements with the municipality before you build.