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Lance Plewis, Founder of Spectrum Design and Drafting Ltd.
Our story

Designed by Canadians, for Canadians

Since 1978, Spectrum Home Plans has designed and drafted practical, economical residential designs tested and true for our unique Canadian climate and building codes.

As one of Canada’s oldest design firms, our master library spans over 4,000 house plans — meaning you, or someone you know, may very well have lived in or close to a Spectrum home.

If you do not know how to build it, you should not be drawing it.

Lance PlewisFounder & Senior Designer
How we work

A clear path from first conversation to construction drawings

We start with listening, search our library when we can save you time and cost, and only move into custom design when an existing plan doesn’t meet your needs.

Blueprints sitting on a table
  1. Listen first

    We listen to your lifestyle, realities, and dreams.

    01
  2. Search the library

    We check our inventory first to save you time and money when a stock plan can work.

    02
  3. Design with purpose

    If needed, we move into custom layouts that stay practical and buildable.

    03
  4. See it in 3D

    CAD models and meaningful revisions help you understand the home before build.

    04

Let's talk

Tell us about your lot, lifestyle, and timeline — we’ll help you find the right plan or shape a custom one.

Schedule a conversation