room Additions toronto

More Space, Less Stress – We Handle Every Step of Your Room Addition

Love your location but need more room? We design and build thoughtful room additions across Toronto – from compact bump-outs to full upstairs additions, handling design, permits and build so you don’t have to. Get a clear plan, a realistic cost range, and a single point of contact from day one.

• Design + Permits handled: We create a plan that fits your home and submit everything the City of Toronto needs so you avoid surprises. City of Toronto
• Transparent, local pricing: Realistic cost ranges up front and project examples so you can make choices that match your budget and goals.
• Built for life (and resale): Energy-smart materials, code-compliant work, and finishes meant to blend with your home, not look tacked on.

Why Choose Us for Your Room Additions?

1. On-site consult + goals call – we measure, listen to how you live, and sketch options (no jargon).
2. Feasible design + rough cost – early cost ranges so you can make decisions before committing to drawings.
3. Engineering & permits – structural checks, engineering if needed, and permit application to the City of Toronto. (Important: additions generally require a building permit.)
4. Build with a single project manager – daily coordination, weekly updates, and quality checks.
5. Handover + warranty pack – final walkthrough, manuals, and warranty details so you feel safe and supported.

How we protect you: we recommend (and can coordinate) reviews by a licensed structural engineer and BCIN-certified designer for all structural or upstairs work – this is industry best practice in Ontario. 

Permits & Code Required for Room Additions in Toronto

Adding a new room or expanding your home in Toronto isn’t as simple as just building – it usually requires a building permit. This applies to nearly every type of addition, including sunrooms, second-storey additions, family room extensions, and in-law suites.

The City of Toronto requires homeowners (or your contractor, if we’re handling it) to submit:

• Detailed architectural drawings showing the addition’s layout and structure.
• Engineering reviews confirming your foundation and framing can support the load.
• Proof that the design meets Ontario Building Code standards for safety, fire separation, insulation, and energy efficiency.

We will handle all of this for you – from preparing the drawings to submitting the permit application and communicating with city inspectors throughout construction.

For official guidelines, visit the City of Toronto Building Permits page – it’s a great resource to understand what’s required and how long approvals typically take.

Local Considerations for Toronto Home Additions

Toronto isn’t one-size-fits-all, every neighbourhood comes with its own character, zoning rules, and construction challenges. Our approach always starts with where you live, so we can design an addition that fits both your home and your area.

Here’s what that looks like across the city:

Scarborough Room Additions

Scarborough has many post-war bungalows, which makes it ideal for bungalow top-ups and second-storey additions. The lots are often narrow but long, so building upward lets homeowners keep their backyards while gaining significant square footage. We also watch for local grading and drainage issues common in older subdivisions.

Etobicoke Room Additions

In Etobicoke, you’ll find larger lots and mixed zoning ideal for rear family-room additions or in-law suites. However, tree protection bylaws can impact placement, so we always coordinate with Urban Forestry during the permit stage.

The Annex, Leslieville & Older Downtown Homes Room Additions

Heritage homes are beautiful but come with strict guidelines. If your property falls within a Heritage Conservation District, we work with heritage planners to ensure exterior designs maintain the original architectural character. Expect longer permit timelines (8-12 weeks) in these zones.

North York Room Additions

North York has a mix of new builds and mid-century homes, which allows for a range of bump-out additions and multi-room expansions. Side-yard setbacks and modern facade blending are key here we design additions that enhance your curb appeal instead of clashing with your home’s style.

Semi-Detached & Rowhouses Room Additions

If your home shares a wall, party-wall agreements are required before construction begins. We handle coordination with neighbours to prevent disputes and ensure all legal approvals are in place.