ADU & Garden Suite Builder — London, Ontario
Garden suites and secondary units across the London region: feasibility, permits, and construction handled from one office.
A second home, in the backyard.
Starlit Homes designs and builds ADUs — garden suites, granny flats, and secondary suites — across London, Ontario and the surrounding towns. Ontario zoning now allows up to three residential units on most residential lots, and we handle everything from feasibility and permits to the final inspection and air-leak test. Whether it's a backyard garden suite for rental income or an in-law suite for family, every unit is built to the same performance standard as our custom homes.
The Rent Math, First
A self-contained suite earns rent and adds value at appraisal. Before you commit, we model your build cost against current London-area rents — for your lot, not a generic spreadsheet.
Matched to the House
Same materials, same rooflines, same windows as the main residence, so the suite reads as part of the property rather than a shed with plumbing.
Full Performance Standard
Every ADU is built like our full-size homes: heavily insulated, triple-pane windows, and tested for air leaks before handover.
ADU zoning in London: what's allowed
The short version: if you own a serviced residential lot in London, you can very likely add a unit — often two. The longer version depends on your specific property, which is where we come in.
Ontario allows up to three residential units on most serviced residential lots under Bill 23 (the More Homes Built Faster Act, 2022) — typically the main house, one suite within it, and one detached garden suite.
The City of London permits ADUs, both inside the principal home and as detached structures, subject to zoning rules on setbacks, height, lot coverage, and servicing.
Most surrounding municipalities in our service area — including Strathroy-Caradoc, Middlesex Centre, and St. Thomas — have their own ADU provisions, each with local nuances.
Requirements differ lot by lot: parking, entrance placement, and utility connections can each affect what's buildable on your property.
You don't need to become a zoning expert — we handle the permit process end-to-end, from the feasibility check on your lot through municipal submission and inspections. Budgeting first? Our breakdown of ADU costs in Ontario covers what drives the price of a garden suite before you commit to drawings.
The Tozer
A duplex ADU currently in development: brick and board-and-batten cladding, a contemporary roofline, built to the same standard as our full-size homes, on an urban infill lot.
Duplex ADU
Brick + Board & Batten
In Development
NetZero Certified
Garden suite floor plan options
The Studio
Bachelor
Compact, efficient living with full kitchen and bath. Ideal for rental income.
The Suite
1 Bedroom
Generous one-bedroom with open-concept living and dedicated laundry.
The Garden Home
2 Bedroom
Full two-bedroom with separate living and dining. Multi-generational living.
ADU questions, answered
ADU resources
The 1.5 ACH standard: what it means for your family
Indoor Air QualityERV mechanics: achieving perfect indoor air
Learn about Ontario's updated ADU zoning regulations from the Province of Ontario and explore NetZero building standards.
Find out what your lot allows
We'll check zoning, servicing, and siting for your specific property, and model build cost against current rents, before you pay for drawings.
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