Ontario Bill 23 · Up to 3 units per residential lot

A second home in your backyard —built by the same crew that quotes it.

Detached garden suites, laneway homes, and coach houses. Permits handled. Built to OBC. Family-owned, crews on the trade since 2010.

$2MGeneral Liability
WSIBCurrent
Since2010
Modern detached garden suite in a residential backyard Recent build Detached garden suiteSouthern Ontario

Three ways to add a second unit
to your lot.

Three types · Same crew · One quote

Ontario Bill 23 lets most residential lots have up to three units as of right. Aluma builds all three types — detached garden suites, laneway homes, and coach houses — across Hamilton, Burlington, Oakville, the GTA, and southern Ontario.

We handle the design, the municipal permits, and the build. Same crew quotes your project and finishes it — no subcontractor maze. WSIB current, $2M general liability, written warranties on every job.

Ready? Book your walkthrough →

Garden suite types.

Three types · Pick what fits your lot
Ontario Bill 23 · More Homes Built Faster Act

Most residential lots can now have up to 3 units —as of right.

No zoning amendment. No public hearing. Dev charges eliminated for qualifying ADUs. Parking minimum dropped to zero.

3 Units allowed per lot
75m² Max GFA in Hamilton
$0 Dev charges (qualifying)
0 Parking minimum
How Bill 23 works →

How a garden suite gets built.

From idea to keys · 4 steps
01Free · No obligation

Walkthrough.

We come to your home, measure the lot, walk through the zoning, and tell you what's possible — including unit size, parking, setbacks. Usually 45 minutes.

Book a walkthrough →
02Architect-led

Design.

We design to match your home's exterior. You see drawings, sample finishes, and a transparent budget before any permit fees are spent.

03We handle the paperwork

Permits.

We file the municipal application and respond to comments. Timelines vary by city; we set expectations on day one.

Aluma Contracting Ltd · incorporated 2020 · crews since 2010 · $2M general liability · WSIB current. Built to OBC across Hamilton, Burlington, Oakville, the GTA, and southern Ontario. EN/ES bilingual crew.

Ready? Book your walkthrough →

Ready to see what your lot allows?
One call. One contractor.

Free on-site walkthrough. We walk your lot and tell you what's possible.

Book a free walkthrough →
Call(647) 932-3266 ChatWhatsApp ContactBook →
Chat now →