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Custom waterfront home in Wasaga Beach by Mighton Construction

Free Planning Tool

Custom Home Cost Calculator

Estimate a realistic planning range for building a custom home in South Georgian Bay — by size, finish level, and site type.

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  • Starting around $400/sq ft
  • Open-book, cost-plus budgets
  • Building here since 1992

Your home

Planning range

$1.06M – $1.33M

2,500 sq ft · Refined finishes · Serviced lot

A planning range, not a quote. Excludes land and HST considerations; design, drawings, site conditions, and approvals determine final cost.

Discuss This Budget With Us How Financing Works

How to Use This Custom Home Cost Estimate

Custom-quality construction in South Georgian Bay starts around $400 per square foot and rises with design complexity, finishes, and site conditions. This calculator applies those same planning figures — the ones we use in real budget conversations for custom homes in Wasaga Beach, Collingwood, Clearview, and Tiny Township — to your inputs.

The finish level matters more than most first-time builders expect. A Refined home is genuinely custom, with quality finishes on a straightforward lot. Premium adds higher-end cabinetry and surfaces, ICF construction, and more complex or sloped sites. Signature covers architecturally complex homes, premium materials throughout, and waterfront builds where structure, access, and exposure all add real cost.

Site type shifts the budget too: rural lots add wells, septic systems, and long service runs, while waterfront lots concentrate engineering, conservation approvals, and durability requirements. When you're ready to move from a range to a real number, our open-book, cost-plus process prices your actual design on your actual lot — and our financing guide explains how construction mortgages fund the journey.

Calculator questions

Frequently Asked Questions

How accurate is this custom home cost calculator?
It produces a planning range built from real market figures for custom-quality construction in South Georgian Bay — starting around $400 per square foot. It cannot see your lot, drawings, or selections, so treat the result as a starting point for conversation, not a quote. A real budget comes from pre-construction planning on your specific project.
What is not included in the estimate?
Land, HST considerations, furniture, and landscaping are excluded. Soft costs (design, engineering, permits, surveys) and site servicing vary widely and are only roughly reflected in the site-type adjustment. Our financing guide explains how to budget for the full journey from lot to move-in.
Why do custom homes in this area start around $400 per square foot?
Custom-quality construction carries engineered structures for snow-belt loads, premium envelopes for the Georgian Bay climate, quality trades, and finish standards well above production builds. Complex or waterfront sites, ICF construction, and premium finishes move projects into the $500–$700+ range.
How do I get a real estimate for my project?
Start with a free conversation about your goals, lot, and rough budget. If the project is a good fit, we provide early guidance and a ballpark estimate; detailed pre-construction budgeting is available as a paid service that produces an open-book budget you can build against.

Turn This Range Into a Real Budget

Book a free initial conversation about your lot, your vision, and your numbers. We accept a limited number of custom homes each year.

Start Planning Your Custom Home