Planning & Costing a Custom Addition: Garage & Home Expansions in Elora
- LUMA Build Design

- Jul 4
- 1 min read
Updated: Sep 7

Thinking “how much to build an addition” or “garage additions” for your Elora, Fergus, Elmira home? This guide covers planning tips, cost expectations, and choosing the right custom addition builder.
Types of Additions
Single‑story bump‑outs, two‑storey expansions, garage conversions/additions
Average costs: $50,000–$200,000+ based on size, scope, finishes
Cost Drivers
Foundation work, structural framing, roofing, permits, electrical, HVAC, interior finishing
Energy code compliance and insulation needs
Building an Addition
Determine goal: more living space, extra bedroom, mudroom?
Draft design with builder, get multiple quotes
Coordinate with home renovation contractor for seamless integration

Hiring the Right Team
Search terms: “addition builder,” “custom addition builder,” “renovation contractors near me”
Look for local credibility in Elora/Fergus area (LUMA Build Design)
Ask for portfolio & references
Budgeting & Timeline
Typical schedule: 6–8 months from planning to completion (Can range)
Home Additions with LUMA Build Design
Experience in additions and custom builds in Elora & Fergus
Full-service delivery: design, permits, build, and finish
Local connections & community-focused approach



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