ADU & GARDEN SUITE BUILDER · GRAND BEND, ONTARIO
ADU Builders in Grand Bend, Ontario — from $148,000
Kuzyn Builds designs and builds accessory dwelling units in Grand Bend, about 65 km northwest of our London office. Detached models start at $148,000 with planning and building permits included and Tarion warranty coverage. Most builds run 2 to 8 months from permit approval.
Building an ADU in Grand Bend
Grand Bend is a community within the Municipality of Lambton Shores, which is who you apply to. It is also a seasonal rental market, and that matters to the paperwork: a unit intended for short-term rental is treated differently from a year-round tenancy, and some incentive programs exclude short-term rental outright. Decide which one you are building before you design it.
Who approves it
Municipality of Lambton Shores issues zoning approval and the building permit for Grand Bend (Lambton County).
Ontario permits up to three residential units on most serviced residential lots as of right, without a zoning amendment. The province sets that baseline; your municipality still sets setbacks, height, lot coverage, parking and servicing, and still issues the building permit.
Published starting prices
The same prices apply in Grand Bend as in London. These are the base prices for the pre-designed detached models, before site-specific servicing.
| Model | Size | Layout | Starting price |
|---|---|---|---|
| The Paul | 321 sq ft | Studio, 1 bath | $148,000 |
| The Maria | 409 sq ft | 1 bed, 1 bath | $168,000 |
| The Henry | 549 sq ft | 2 bed, 1 bath | $218,000 |
What the price includes
- Complete ADU structure and construction
- Interior finishes and fixtures
- Windows and doors
- HVAC system (ductless heat pump)
- Appliances (fridge, stove, dishwasher, microwave)
- Quartz countertops
- Vinyl plank flooring
- Planning and building permits
- Tarion warranty (detached units only)
Additional Costs (Not Included in Base Price): Sewer line connections and hookups; Water line connections and hookups; Electrical service connections and upgrades; Distance from main utility lines; Local permit and connection fees; Site-specific excavation and trenching; Municipal connection fees.
Travel outside London is quoted as a visible line rather than buried in the base price, so you can see what the distance actually costs.
Why Grand Bend homeowners choose Kuzyn Builds
- Published fixed starting prices, from $148,000 — not "request a quote to find out".
- Planning and building permits included in the base price.
- Tarion warranty coverage on detached models.
- Named, pre-designed models you can compare before you commit: The Paul, The Maria, The Henry.
- Family-owned and London-based, with 80+ completed projects over 10+ years in Ontario.
Frequently asked questions
Does Kuzyn Builds build ADUs in Grand Bend?
Yes. Grand Bend is about 65 km northwest of our London office and is inside our regular service area, alongside London, St. Thomas, Strathroy, Sarnia and Grand Bend. The same pre-designed detached models and the same published starting prices apply, from $148,000.
How much does an ADU cost in Grand Bend?
The pre-designed detached models start at $148,000 for The Paul (321 sq ft), with planning and building permits included. Interior and garage conversions start lower, from about $75,000. The variable between one lot and the next is site servicing — water, sanitary and hydro runs — which is why a property assessment comes before a firm number.
Who approves an ADU in Grand Bend?
The Municipality of Lambton Shores issues the zoning approval and the building permit. Ontario permits up to three residential units on most serviced residential lots as of right, without a zoning amendment. The province sets that baseline; your municipality still sets setbacks, height, lot coverage, parking and servicing, and still issues the building permit.
How long does a Grand Bend ADU take to build?
Between 2 and 8 months from permit approval to completion, depending on configuration. Interior and garage conversions run 2 to 4 months; a detached standalone unit runs 4 to 8 months. Permit approval sits ahead of that and depends on the municipality's queue.
Other areas we build in
Thinking About an ADU in Grand Bend?
No sales pitch — a straight conversation about your lot, your budget and whether an ADU makes sense.