Whole Home Renovation vs. New Build – Cost, Timeline & What to Expect
Are you considering a major renovation—or starting fresh with a new custom home? This guide will help you understand what's involved in both paths so you can make a confident, informed decision.
1. Project Goals & Vision
Before diving into the numbers, take a step back and ask:
What are you hoping to achieve with this project? More space? Better layout? Higher energy efficiency?
Are you attached to the character or location of the existing home?
Would you prefer a clean slate to build your dream home from scratch?
Knowing what you value most—style, timeline, budget, or flexibility—can help point you in the right direction.
2. Renovation: What to Expect
A whole home renovation typically includes:
Structural changes (walls, ceilings, additions)
New kitchens, bathrooms, windows, doors, flooring, finishes
Upgraded electrical, HVAC, and plumbing systems
Potential surprises inside walls (old wiring, mold, rot, insulation issues)
Pros:
Preserve parts of the existing structure
Maintain neighbourhood charm or zoning footprint
Potentially quicker permitting (depending on scope)
Challenges:
Limited by existing structure and layout
Higher chance of unexpected costs
Energy efficiency upgrades may be limited or expensive
3. New Custom Home: What to Expect
Building new gives you:
Complete design freedom
Modern energy efficiency and systems
Opportunity to optimize layout, natural light, and flow
Better performance and resale value
Pros:
Clean start with fewer surprises
Easier to meet modern code and energy standards
Long-term durability and reduced maintenance
Challenges:
May require demolition permit and full site prep
Zoning, setbacks, or lot limitations may apply
Higher upfront planning and design time
4. Cost Comparison (Ontario Averages)
Whole Home Renovation: $250–$400/sq ft (varies based on age and complexity)
New Custom Home: $325–$475/sq ft (based on level of customization and finishes)
When renovation costs approach 70–80% of a new build, a teardown often becomes more practical.
5. Timeline
Renovation: 6–12 months (may be staged)
New Build: 10–16 months (including demo, design, permits, construction)
Delays can occur on either side due to permitting, inspections, weather, or supply chain issues.
6. Key Decision Factors
Use these questions to help assess what fits best:
Is the existing structure worth keeping?
Are you willing to live through renovation disruption?
Do you want full design control?
Is your lot suitable for a new build?
Are there long-term value or energy goals driving the decision?
7. Next Steps
Every project is unique. The best first step is to book a consultation and site visit. We’ll walk the property with you, talk through your vision, and help you weigh the pros and cons in plain language.
Let’s build something that fits your life, your style, and your future—together.
