Side addition
River Rd, Mississauga
This project transformed an aging 1½-storey home on River Road into a two-storey residence with expanded living space, improved structure, and a completely redesigned exterior. Cadaxx Design provided full architectural drawings, zoning compliance, permit submissions, and construction-phase support.
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Project Overview
The original house was a compact, outdated structure with limited headroom, aging finishes, and an inefficient layout. The client wanted a complete rebuild while staying within local zoning rules and maximizing the property’s potential.
Our team designed a fully reconfigured two-storey home with an integrated garage, open-concept main floor, larger bedrooms, and a new roofline that gives the house a modern, craftsman-inspired character.
Design & Permit Scope
Cadaxx Design delivered the full design and permit package for this project, including:
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Concept & architectural design for the new custom home
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Zoning review of Mississauga R zoning
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Complete building-permit drawings (architectural, structural coordination)
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Committee of Adjustment assessment (not required for final design)
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Coordination with surveyor, structural engineer, HVAC designer
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Construction-ready details and revisions during the build
The new design stayed within allowable height, coverage, and setbacks — enabling a smooth, straightforward permit approval.
Design Features & Improvements
Exterior & Structure
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New two-storey structure replacing the old 1½-storey house
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Modern dark siding with wood-tone architectural accents
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Extended rooflines and gable features
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New integrated garage
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Full new foundation upgrades where required
Interior Layout
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Open-concept main floor
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Larger living and dining areas
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Full redesign of stair placement
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Expanded second floor with proper ceiling height
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Spacious primary suite and improved bedroom layout
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Updated plumbing, HVAC, and electrical
Site Enhancements
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New driveway and grading plan
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Improved landscaping layout
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Better drainage and lot coverage compliance
3D Model
3D model preview of the River Road side addition, showing the redesigned façade, expanded floor area, and updated two-storey layout.
Completed Project
This River Road custom home is a complete architectural transformation: a full redesign, new structural layout, and modern exterior that dramatically upgrades curb appeal and functionality.
The finished home reflects contemporary design, efficient use of space, and strong alignment with municipal zoning and Ontario Building Code requirements.
Process
1. Site Review & Measurements
We assess the existing home and confirm what size addition is allowed under Mississauga zoning.
2. Zoning Check
Setbacks, coverage, height, and side-yard rules are reviewed to ensure compliance or determine if a minor variance is needed.
3. Concept Design
We create layout and exterior options showing how the new side addition connects to the existing structure.
4. Permit Drawings
Complete architectural drawings, structural coordination, site plan, and OBC compliance details.
5. Submission & Approval
We submit through Mississauga ePlans and
FAQs
Do I need a permit?
Yes—any side addition increasing floor area or modifying structure requires a building permit.
Will I need the Committee of Adjustment?
Only if the addition goes beyond allowed setbacks or coverage. We confirm this during zoning review.
How long does permit approval take?
Typically 3–6 weeks, depending on examiner response times.
Can we update the exterior at the same time?
Yes. Siding, rooflines, windows, and façade improvements can be included in the same permit.
Do you handle the full process?
Yes—we prepare the drawings, coordinate engineering, and submit the permit on your behalf.