Basement apartments and secondary suites in Hamilton
Legal basement apartments and in-law suites, planned around Hamilton's permit and fire-separation rules.

A self-contained suite can house a parent, an adult child or a tenant, and it can change the numbers on your mortgage. It also has to meet the Building Code: fire separation, smoke and CO alarms, egress windows, ceiling heights and a separate entrance.
We build secondary suites as one complete project: kitchen, bathroom, bedroom, laundry and every code requirement in between. We'll also point you to the City of Hamilton and federal programs that can help fund it.
From recent projects



What it costs
Typical legal basement apartment
$90,000 – $150,000
Before HST. Existing plumbing, ceiling height and the entrance are the biggest variables.
Try the budget calculatorFantastic experience from start to finish. Professional, reliable, and detail-oriented throughout the entire renovation process. Communication was great, timelines were agreed upon prior to work commencing, and the workmanship exceeded expectations.
Good to know
Related services
- BasementsUnfinished basements turned into bright, dry, finished living space, from framing to final trim.Learn more
- AccessibilityBarrier-free bathrooms, grab bars and ramps that make it easier to stay in the home you love.Learn more
- KitchensFull kitchen renovations and installations, from cabinet layout to the last run of trim.Learn more
Planning a secondary suite project?
A free visit and a written quote. Calls go straight to David.