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House Extension –
Stormont Ave, North York

Cadaxx Design prepared complete permit drawings for a second-floor addition to this North York home.

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The project is currently under construction and will significantly expand the home’s living space while maintaining a cohesive connection with the existing structure. Our services included architectural design, structural coordination, and permit drawings.

Explore this project

Links to

City:                  North York

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Project Type:  Home Addition

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Style:                Traditional

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Stage:               Construction

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stormont-partial-front-elevation-final-.png

Project Overview

This ongoing project expands the existing home with a new second floor and rear addition on a prominent corner lot in North York. The design creates additional family living space while maintaining the existing foundation and structure. Cadaxx Design coordinated the zoning, structural design, and OBC-compliant permit drawings before construction began.

Key Details

  • Location: Stormont Ave, North York

  • Type: Second-Floor Addition and Rear Addition

  • Site: Corner Lot

  • Scope: Design · Structural Coordination · Permit Drawings

  • Status: Under Construction

Highlights

  • Committee of Adjustment approval secured

  • Structural design completed after Committee of Adjustment approval

  • Complete permit drawings prepared

  • Basement second unit included in the design

  • Second-floor framing and rear addition underway

  • Updated façades designed for enhanced corner-lot visibility

Design, Approvals & Permit Drawings

Cadaxx Design developed the architectural design and represented the project through the Committee of Adjustment process. Following approval, we coordinated the structural design and prepared the complete permit drawing package for the second-floor addition, rear addition, and basement second unit.

Design Consideration

The design process began with a review of the existing bungalow and its potential for expansion. Several design options were explored to create a larger, more functional home while improving its presence on the corner lot.

The final design combines a second-floor addition, rear addition, and basement second unit with a modern, balanced exterior. The centrepiece is the grand front entrance, featuring a tall glazed doorway, strong vertical proportions, and a welcoming staircase that creates a clear focal point from the street.

The entrance gives the home a distinctive identity while connecting the new upper level with the original structure. Careful attention was given to the façades visible from both streets, ensuring the completed home makes a strong architectural statement from every angle.

3D Model

Construction Progress

Demolition has now started at the Stormont Ave project. The existing structure is being carefully removed to prepare the site for the approved second-floor addition, rear addition, and basement second unit.

Cadaxx Design continues to support the project through site coordination and construction-related clarifications in accordance with the approved permit drawings.

Permit Process

Cadaxx Design managed every step of the permit approval for this Botfield project:

1️⃣ Site measure and as-built plans
2️⃣ Zoning review and analysis
3️⃣ Structural coordination
4️⃣ Preparation of permit-ready drawings
5️⃣ City of Toronto submission and revisions
6️⃣ Support during construction

FAQs — House Extensions in Toronto

  • Q1: Do I need a permit for a house extension in Toronto?
    Yes. Any expansion to the existing footprint or second storey requires a building permit and OBC review. Cadaxx prepares and submits the drawings for approval.

  • Q2: How long does it take to get a house extension approved?
    Typically 6–10 weeks, depending on City review time and project complexity.

  • Q3: Can I add a rear extension and second floor together?
    Yes. Combined projects are common and cost-efficient. Cadaxx coordinates the design and structure as one permit set.

  • Q4: Will my existing foundation support a second storey?
    Cadaxx reviews foundation capacity with a structural engineer and designs reinforcements where required.

  • Q5: Does Cadaxx handle the entire process?
    Yes — from zoning and design to permit submission and construction support, Cadaxx manages the project end-to-end.

Related Project – Rustic Dr Extension

The Botfield Dr extension follows similar design and structural coordination principles used in the Rustic Dr project, where Cadaxx completed a second-storey addition on an existing bungalow.
👉 View Rustic Dr Project

Why Choose Cadaxx

  • Experts in house extensions and major home additions

  • BCIN-licensed drawings and OBC coordination

  • Fast City approvals and precise structural design

  • Trusted by Toronto homeowners for comprehensive permit solutions

Start Your House Extension in Toronto

  • Cadaxx Design helps homeowners expand their living space through smart, OBC-compliant house extensions approved by the City of Toronto.
    Contact us to begin your home extension project.

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