Secondary Suite Development
Secondary Suite Calgary
Turn your basement into a legal secondary suite — Timeless Interiors manages the full scope in Calgary, from design through permits and the Secondary Suite Registry, backed by a two-year craftsmanship warranty.
What's included
Full-scope secondary suite development
We manage the entire project so the finished suite is actually legal to rent — not just finished.
- Design & layout planning
- Building permit application & inspections
- Egress window cutting & installation
- Separate entrance planning
- Fire separation between suites
- Kitchen & bathroom rough-in
- Framing, insulation & drywall
- Secondary Suite Registry support after inspections
Recent work
Inside a Calgary basement suite
A recently completed secondary suite — hallway, bedrooms, and the details a plan reviewer checks for.
Hallway — separate thermostat 
Bedroom — egress window 
Second bedroom
An egress window and separate heating control in each suite are two of the details a City of Calgary plan reviewer checks for — we build to that standard on every suite.
Common questions
Secondary suite FAQs
Does Timeless Interiors pull the building permit, or does the homeowner?
We pull the building permit and manage the inspection process as part of every secondary suite project.
Does Timeless Interiors handle the Secondary Suite Registry entry after inspections?
Yes. Once your suite passes its final inspections, we help you complete the Secondary Suite Registry entry so it's fully legal to rent.
How much does a secondary suite cost in Calgary?
Cost depends on layout, whether an egress window needs to be added, and finish level. You'll receive a fully itemized, fixed-price quote after a free in-home consultation.
Free quote
Ready to talk about your project?
Get a free, no-obligation consultation and a fixed-price quote within 48 hours.