GTA homeowners are investing more in outdoor living than ever. A well-designed deck, covered patio, or sunroom extends your usable living season from May through October and adds meaningful resale appeal. Here is what to know before you build.
Deck vs Patio: What Is the Difference?
A deck is an elevated wood or composite structure attached to or freestanding near the home. A patio is a ground-level surface of concrete, interlock, or natural stone. Decks are better for sloped yards and where you want height off the ground. Patios are lower-maintenance and more durable over the long term.
Deck Costs in the GTA (2026)
- Pressure-treated wood deck: $150 – $220 per sq ft installed
- Cedar deck: $200 – $280 per sq ft installed
- Composite deck (Trex, Fiberon): $250 – $380 per sq ft installed
- Low-maintenance hardscape alternatives (porcelain pavers, concrete): $180 – $350 per sq ft
A typical 300 sq ft deck in the GTA ranges from $45,000 to $110,000 depending on material, height off ground, railing design, and any integrated features (built-in seating, planters, pergola).
When You Need a Permit
In Toronto and most GTA municipalities, a building permit is required for any deck more than 60cm (24 inches) above grade or any structure attached to the house. Even freestanding pergolas over 10 sq m require permits in some municipalities. Build without a permit and you face risks at resale: the deck may be required to be removed or rebuilt.
Composite vs Wood: Which Is Right for the GTA Climate?
Composite decking performs better than wood in the GTA's freeze-thaw cycle. It does not warp, split, or require annual staining. The higher upfront cost ($250 – $380/sq ft vs $150 – $220/sq ft for pressure-treated) is typically recovered in lower maintenance over a 20-year horizon.
Covered Outdoor Spaces: Pergolas and Sunrooms
A pergola with a louvred roof system (like a Durasol or similar motorized system) extends outdoor usability through rain. Budget $20,000 – $45,000 for a quality motorized pergola system on an existing deck. A fully enclosed three-season sunroom is a major renovation — $60,000 – $130,000 — but delivers interior-quality space for 5–6 months of the year.
Outdoor Kitchen and Fire Features
Outdoor kitchens (built-in grill, countertops, bar fridge) add significant value for entertaining-focused households. Budget $15,000 – $40,000 for a well-built outdoor kitchen setup. Gas fire pits and fire tables add ambiance and extend fall outdoor use — $3,000 – $12,000 depending on configuration.
GTA Backyard Zoning and Setbacks
Rear yard setbacks in Toronto require a minimum distance from structures to the rear property line — typically 7.5m in most low-density zones, reduced for accessory structures. Side yard setbacks are typically 0.9 – 1.2m. Confirm with your municipality before designing large outdoor structures near property boundaries.
"The best outdoor spaces feel like a natural extension of the home — not an afterthought tacked onto the back."
- EZU Construction Team
EZU Construction designs and builds outdoor living spaces across Toronto and the GTA. Contact us to discuss your backyard goals and get a realistic estimate for the season.
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