Home Addition Permit Drawings & Design Services
Design and permit drawing services for home additions across the GTA and surrounding areas. We help homeowners develop practical plans for expanding living space while addressing applicable building and permit requirements.
The service
Home Addition Services
We help homeowners and contractors plan additions that expand or improve an existing home. Each property has different site conditions, zoning restrictions, setbacks, and existing building conditions, so we review the project before preparing the permit drawing package.
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Rear & Side Home Additions
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Bedroom & Living Space Additions
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Kitchen & Dining Extensions
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Attached Home Extensions
Simple Process
How it Works
Project Review & Quote
Tell us about your project. We review your requirements, discuss the scope, and provide a clear written quote.
Site & Project Review
We review available property information, existing conditions, and applicable zoning and building code requirements.
Design & Permit Drawings
We develop the design and prepare a coordinated permit drawing package based on your project requirements and scope.
Finalization & Project Tracking
Review your drawings, request revisions, and access your project status online using your personal project access code.
Frequently Asked Questions
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Yes. A home addition generally requires a building permit because it changes the building area and may affect the structure, foundation, building envelope, energy efficiency, plumbing, heating, ventilation, fire safety, and other regulated components. Zoning requirements such as setbacks, lot coverage, building height, and required yards must also be reviewed before the addition is designed.
A typical home addition permit drawing package may include a site plan, existing and proposed floor plans, foundation and structural information, exterior elevations, building sections, roof plans, construction details, window and door information, and applicable Ontario Building Code information. The exact drawings required depend on the size, location, construction method, and complexity of the addition.
Possibly, but the permitted location depends on the applicable municipal zoning requirements, including required setbacks, lot coverage, building height, and other site-specific regulations. Some properties may also be affected by conservation, floodplain, heritage, easement, or other restrictions. These requirements should be confirmed before finalizing the addition design.
It depends on the proposed design and the structural complexity of the project. Additions commonly involve new foundations, roof structures, beams, connections, or modifications to the existing building that may require structural design or review by a qualified professional. Where engineering is required, the structural work should be coordinated with the permit drawing package.
Tell us about your project, location, and what you’re planning to build or change. We’ll review the details and let you know the appropriate next steps.
Planning a Home Addition?
Before you start construction, make sure you understand what your property and proposed addition require.