What Influences the Cost of a Custom Home?

Your home is more than a price per square foot. Explore how design, materials and site conditions shape your investment.

LILAC HOMES INC. | Building Costs Explained
LILAC HOMES INC. | Building Costs Explained

What Does It Really Cost to Build a Custom Home?

These homes are both 2500 SF but, different design choices, finishes and features create very different budgets.

Home A - Simpler Design

Your home is more than a price per square foot. Explore how design, materials and site conditions shape your investment.

Estimated Cost: $425 per SF.
Home B - Custom Upgrades

Architectural roofline, vaulted spaces, extensive glazing, premium finishes

Estimated Cost: $675 per SF.
Lilac Homes Inc. · Simcoe County, Ontario

What Influences the Cost of Your Custom Home?

Explore how design choices, finishes and site conditions change your preliminary building budget.

Interactive educational budget explorer
Building budget explorer

Custom Home Cost Calculator

Change any selection to update the budget instantly. All amounts are in Canadian dollars.

Above-grade finished living space; excludes garage and basement.
Illustrative starting assumption. Confirm your actual base specification and pricing.

Design & architecture

Materials & systems

Garage, basement & site

Foundation and unfinished basement must be defined in the base specification; this selection adds finishing only.
Illustrative allowance only; actual site costs depend on surveys, soil, grading, services, driveway and municipal requirements.
Optional allowance for permits, professional fees, development charges or other identified items. Do not double-count.

Contingency & tax

Applied to construction, upgrades and selected allowances.
No rebates, relief or exemptions are calculated.
*Important: These are demonstration amounts, not verified quotes or Lilac Homes pricing. This calculator is provided by Lilac Homes Inc. for general educational and preliminary budgeting purposes only.

This Custom Home Cost Calculator is provided by Lilac Homes Inc. for general information and preliminary budgeting purposes only. All pricing and allowances are illustrative and do not constitute a quotation or guarantee. Actual construction costs, features and inclusions may vary based on design, specifications, site conditions and project requirements. Additional costs, including land, permits, development charges and HST, may apply. All pricing is subject to change and requires project-specific review.


For complete terms and conditions, please review our Full Disclaimer here.

Let's Discuss Your Custom Home

Whether you are researching building costs, evaluating a lot or preparing to begin the design process, Lilac Homes welcomes the opportunity to discuss your project.