Cadaxx Design managed the basement walkout permit for this Forest Hill home, preparing detailed Toronto building permit drawings that improved access, light, and lower-level function.
Our BCIN-licensed team coordinated design, structure, and drainage to meet all City of Toronto and Ontario Building Code standards.
The new basement walkout connects seamlessly to the rear addition above, combining design precision with code-compliant construction for lasting quality.
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Project Overview
The project added a rear basement walkout to improve light, access, and connection to the backyard. Cadaxx handled all drawings, coordination, and submissions required by the City of Toronto, ensuring structural integrity and waterproofing compliance.
Key Details
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Location: Lonsmount Dr, Forest Hill (Toronto)
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Type: Basement walkout and renovation
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Scope: Design · Permit Drawings · Structural Coordination
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Status: Approved / Completed
Results
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Added a functional rear basement walkout
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Increased natural light and ventilation
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Improved access to backyard and lower level
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Fully code-compliant and OBC-approved design
Design & Structural Coordination
The new basement walkout was integrated with the home’s existing structure and landscape. Cadaxx developed precise permit drawings showing excavation limits, retaining walls, and drainage design.
Highlights:
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Rear basement walkout with safe step design
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Structural coordination for retaining walls and lintels
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Waterproofing and drain connection details
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Enhanced usability of the lower level
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Integration with rear addition above
Cadaxx provides basement walkout permit drawings that ensure safety, durability, and efficient City approval.
Construction Highlights
Cadaxx worked closely with the contractor to ensure the basement walkout construction matched the approved drawings — including foundation waterproofing, step geometry, and railing compliance.
The finished result is a bright, accessible lower level that adds value and function.
Related Project – Rear Addition Permit, Forest Hill
This basement walkout was designed together with the home’s rear addition, managed by Cadaxx under a separate permit.
Explore the full project here:
👉 Rear Addition Permit – Forest Hill, Toronto
Homeowner Experience – Cadaxx Design Toronto
This is our biggest project ..Alex is very thorough and makes sure all details are taken care of.Always quick to respond to questions or requests.we would definently use him again..
★★★★★
Basement Walkout Permit Process in Toronto
Cadaxx follows a detailed process for all basement walkout permits in Toronto, ensuring zoning, grading, and OBC compliance.
Steps:
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Site measurement and grading analysis
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Zoning and rear-yard review
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Structural coordination for retaining walls and openings
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Preparation of basement walkout permit drawings (plans, sections, details)
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Submission to the City of Toronto and coordination with examiners
Our approach ensures the new walkout meets all safety, structural, and drainage requirements.
Why Choose Cadaxx for Basement Walkouts in Toronto
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Specialists in basement walkout and addition permits across Toronto
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BCIN-licensed and experienced with OBC structural design
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Fast, accurate building permit drawings for City approval
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Coordination with engineers, waterproofing, and drainage consultants
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Trusted by homeowners in Forest Hill and across the GTA
FAQs — Basement Walkout Permits in Toronto
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Q1: Do I need a permit for a basement walkout in Toronto?
Yes. Basement walkouts require structural and zoning approval from the City, including excavation and retaining wall design. -
Q2: Can a walkout be added to an existing basement?
Yes. Cadaxx assesses structural and grading conditions to design a safe, code-compliant walkout that meets OBC standards. -
Q3: How long does approval take?
Typically 2–3 weeks depending on scope, City workload, and coordination with structural drawings.
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Cadaxx Design specializes in Toronto basement and underpinning permits, providing complete design, coordination, and permit drawings for homeowners across the GTA. Our BCIN-licensed team ensures every project meets the Ontario Building Code and receives fast City approval — from legal basement apartments to foundation underpinning and secondary suite conversions.
Learn more about how Cadaxx designs basement apartment and underpinning permits in Toronto → Basement Permit Services
Start Your Basement Walkout Permit in Toronto
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Cadaxx Design helps Toronto homeowners add light, access, and space with fully compliant basement walkout permits and design services.
Contact us to begin your basement walkout or rear addition project today.