Toronto & the GTA
Home Additions & Extensions
Rear, side and second-storey additions that blend with your existing home and add real living space.
An addition can solve a space problem without leaving a neighbourhood you love. It is also the most complex residential project type: zoning, permits, structure, foundations, weather-tight envelope and tie-ins to the existing house all need to work together.
ControBuild builds additions from the foundation up and manages the details that make new space feel like it was always part of the house.
What's included
- Room, bedroom and kitchen additions
- Second-storey additions
- Rear and side home extensions
- Garage additions and garage conversions
- Sunroom and mudroom additions
- Foundation extensions and structural framing
- Roof extensions and exterior finishing
- Window and door installation
- Architectural and engineering coordination
- Permit application coordination
How it works
- 1
Feasibility
We review your goals, lot and zoning constraints, and likely approval path.
- 2
Drawings & permits
Working with your design team, we help move drawings through permitting.
- 3
Site work & foundation
Excavation and foundations are completed and inspected.
- 4
Structure & envelope
Framing, roofing, windows and cladding make the addition weather-tight.
- 5
Interior & handover
Mechanical, insulation, finishes and final inspections complete the project.
Why homeowners choose ControBuild
- Experienced coordination of design and approvals
- Weather-tight scheduling and site protection
- Seamless tie-ins to your existing home
- Clear milestones from foundation to finish
Frequently asked questions
Do I need a building permit for an addition?
Yes. Additions require building permits and must meet zoning rules, and sometimes a committee of adjustment approval. We help you understand the path.
Can you build a second-storey addition?
Often yes, subject to structural review of the existing house and zoning limits. We will assess feasibility during the site visit.
How do you handle weather during construction?
We sequence work to get the structure weather-tight quickly and protect open areas of the home.
Serving homeowners and businesses across Toronto and the GTA. See our service areas or recent projects.
Related projects
Ready to Start Your Project?
Get a free, no-obligation quote for your renovation or construction project in Toronto & the GTA.