-Procon General Contractors Ltd.
Home Additions & Second-Storey Additions in Etobicoke and Toronto
Experienced Home Addition Contractors | Over 30 Years of Residential Construction Experience
Love your home but need more space? A well-planned home addition can give you the extra living space you need without leaving the neighbourhood you love. Whether you're expanding your main floor or adding a second storey, Procon General Contractors brings the construction experience and attention to detail needed to make your vision a reality.
Home Addition Contractors in Etobicoke and Toronto
Expanding an existing home involves more than constructing additional rooms. A properly built addition requires careful consideration of the existing foundation, structural framing, load-bearing walls, roof system, and mechanical services. The new construction must integrate with the original building while meeting current building-code requirements and applicable municipal regulations.
At Procon General Contractors, our experience includes home additions, structural alterations, major residential remodeling, and complete home renovations. We understand the importance of planning the work correctly, coordinating experienced trades, and paying attention to the construction details that affect the finished project. From the initial discussion through construction, Frank Ricci remains directly involved in overseeing the work.
How Much Does a Home Addition Cost in Toronto and Etobicoke in 2026?
Complex structural work, difficult site conditions, extensive renovations to the existing home, or luxury finishes can increase these costs.
These figures are general Toronto-area construction budgeting estimates, not fixed prices or quotations from Procon General Contractors.
They are in Canadian dollars and exclude HST, drawings, engineering, permit fees, contingency allowances, and extensive renovations to the existing home unless specifically included in a project quotation.
Type of addition
Rear or side addition
Second-storey addition
Complex or high-end addition
Estimated construction costs
$350-$550 per sqft
$400-$700 per sqft
$600-$800 per sqft
Example Project Costs
Here are some typical examples:
Project example
Preliminary construction budget
300 sq. ft. rear addition
$105,000-$165,000
500 sq. ft. main floor addition
$175,000-$275,000
800 sq. ft. second storey addition
10000 sq. ft. second storey addition
$320,000-$560,000
$400,000-$700,000
Building upward can create substantial living space without sacrificing your backyard.
LEARN ABOUT SECOND-STOREY ADDITIONS ---
Rear Home Additions in Etobicoke
A rear addition is one of the most popular ways to expand the living space of an existing home. Depending on the property and local zoning requirements, extending toward the backyard can provide additional space without substantially changing the front appearance of the house.
Rear additions are often designed to accommodate larger kitchens, dining rooms, family rooms, and open-concept living areas. A well-planned addition should connect naturally with the existing interior, with careful attention to floor levels, ceiling heights, natural light, exterior materials, and structural integration.
At Procon General Contractors, we approach these projects with an understanding of both the new construction and the modifications required to the original building.
Second-Storey Additions in Toronto
A two-storey rear or side addition can provide a substantial increase in living space by expanding both the ground floor and upper level. For example, the main floor could accommodate a larger kitchen or family room, while the upper level provides additional bedrooms and bathrooms.
Building on two levels can make efficient use of the available lot area, although the structural requirements and construction costs must be carefully evaluated. Proper foundation design, framing, roof integration, and mechanical coordination are essential to a successful project.
What Affects the Cost of a Home Addition?
Several factors can make two additions of identical square footage cost very different amounts.
Existing structural conditions:
Older houses may require reinforcement, replacement of deteriorated framing, or foundation improvements.
Foundation and excavation work:
A ground-floor addition may require excavation, concrete footings, foundation walls, drainage, and waterproofing.
Roof construction:
Connecting new roof framing to an existing house or removing a roof for a second-storey addition can significantly affect labour and material costs.
Kitchen and bathroom installations:
Plumbing, electrical services, cabinetry, fixtures, and finishes can increase the project budget.
Heating and cooling systems:
Additional living space may require HVAC modifications, equipment upgrades, or a separate heating and cooling solution.
Interior remodeling:
Many homeowners use the addition project as an opportunity to open up existing rooms, create a new staircase, or renovate other parts of the home.
Property access and site conditions:
Narrow lots, mature trees, limited construction access, and difficult soil conditions can also influence construction costs.
For these reasons, square-foot pricing should be used for preliminary budgeting rather than as a substitute for a detailed project estimate.
Home Addition Permits and Zoning in Toronto
Building a home addition in Etobicoke requires compliance with the City of Toronto's applicable zoning regulations, building-code requirements, and permit procedures.
Before construction begins, the proposed addition must be properly designed and the necessary approvals obtained.
Depending on the property, important zoning considerations may include:
Maximum permitted building height
Required front, rear, and side-yard setbacks
Lot coverage and other building-size restrictions
Permitted building depth and overall massing
Applicable angular-plane restrictions
Heritage or other property-specific requirements
If a proposed addition does not comply with applicable zoning regulations, approval from the Committee of Adjustment may be required.
Architectural or building design drawings, structural engineering, and other supporting documents may also be needed.
Municipal requirements should be reviewed early in the planning process so homeowners understand whether their proposed addition is feasible before investing heavily in detailed construction plans.
Our Approach to Home Addition Construction
1. Initial Project Discussion
We begin by understanding what the homeowner wants to accomplish, whether that's adding bedrooms, expanding the kitchen, creating additional living space, or transforming the entire house.
2. Evaluating the Existing Home
The existing structure, site conditions, access, and proposed construction requirements help establish what must be reviewed before work begins.
3. Design, Engineering, and Permits
The project requires appropriate drawings, structural design where necessary, and municipal approvals before construction.
4. Structural Construction
Depending on the design, work may include excavation, foundations, structural reinforcement, framing, roofing, and installation of the building envelope.
5. Mechanical and Interior Construction
Electrical, plumbing, heating, insulation, drywall, flooring, trim, and other interior finishes are coordinated as required by the project.
6. Finishing and Project Completion
The objective is a properly constructed addition that integrates with the existing home and provides comfortable, functional living space for years to come.
Why Choose Procon General Contractors?
Over 30 Years of Residential Construction Experience
Established in 1990, Procon General Contractors brings decades of experience in home additions, structural construction, and residential renovations throughout Toronto and Etobicoke.
Direct Owner Supervision
Owner Frank Ricci is personally involved in overseeing construction and coordinating the work. Homeowners benefit from direct communication with the experienced contractor responsible for their project.
Structural Construction Knowledge
Home additions involve complex connections between new and existing structures. Our practical construction experience provides a strong understanding of framing, load-bearing modifications, foundations, and the many construction details involved in expanding an existing home.
Experienced Trades and Construction Coordination
A home addition requires different trades working together in the correct sequence. Careful coordination of structural work, mechanical installations, and interior construction is essential to delivering a properly finished project.
Dedicated Attention to Your Project
We take a focused approach to managing major construction projects, with direct supervision and close attention to workmanship throughout the process.
Etobicoke Neighbourhoods We Serve
The Kingsway & Sunnylea, Mimico, New Toronto, Long Branch, Alderwood, Islington–City Centre West, Humber Bay Shores, Richview, Thorncrest Village, Princess–Rosethorn, Markland Wood, Eringate and Centennial Park, Rexdale, Kingsview Village, West Humber–Clairville, Humberwood, Stonegate-Queensway
More Than Just Home Additions
At Procon General Contractors, our experience goes well beyond home additions and second-storey expansions. We provide a full range of residential construction and renovation services throughout Etobicoke and Toronto, including whole-home renovations, kitchen renovations, bathroom renovations, basement renovations, structural renovations, and custom deck construction. With over 30 years of hands-on construction experience, we bring the same commitment to quality workmanship and personal supervision to every project.
Frequently Asked Questions About Home Additions
How much does a second-storey addition cost in Etobicoke?
The cost of building a second-storey addition in Etobicoke depends on the size of the addition, the structural condition of your existing home, and the level of interior finishes.
For 2026, homeowners can use approximately $400 to $700 per square foot as a preliminary construction budgeting range. For example, an 800-square-foot second-storey addition could cost approximately $320,000 to $560,000, excluding design fees, engineering, permits, HST, and major structural upgrades.
Every home is different. Factors such as foundation reinforcement, roof removal, new staircases, plumbing, electrical work, and renovations to the existing main floor can significantly affect the final cost.
At Procon General Contractors, we believe accurate pricing begins with understanding your home's existing structure and the full scope of your proposed addition. Our construction experience helps homeowners evaluate the work involved before making a major investment.
Is it cheaper to build a second storey or a rear addition?
Neither option is automatically cheaper. A rear addition typically requires new excavation and foundation work, while a second-storey addition involves removing or modifying the roof and ensuring the existing building can support the added loads. Property conditions and project scope determine the most practical option.
___________________________________________
___________________________________________
___________________________________________
___________________________________________
Do I need to move out during a second-storey addition?
For extensive second-storey additions involving roof removal, major structural changes, and disruptions to essential services, temporary accommodation is often necessary. Whether homeowners can remain during part of the construction depends on the scope and site safety conditions.
Can you add a second floor to an older Etobicoke bungalow?
Many homeowners consider this option, but a structural assessment and zoning review are needed to determine feasibility. Some bungalows may require foundation or framing reinforcement before an additional floor can be constructed.
___________________________________________
____________________________________________
How long does it take to build a home addition?
Construction timelines vary significantly depending on the size and complexity of the addition, structural requirements, availability of materials and trades, inspections, and weather conditions. Planning, design, engineering, and obtaining permits also require time before construction can begin.
Do I need a permit for a home addition in Toronto?
Yes. Residential home additions require building permits and must comply with applicable building and zoning requirements. Additional approvals may also be necessary depending on the property and proposed work.
____________________________________________
Can I renovate my main floor while adding a second storey?
Yes. Many homeowners consider combining an addition with interior remodeling to improve the layout of the entire house. The additional renovation scope should be included in planning, design, and budgeting from the beginning.
____________________________________________
How do I get an accurate estimate for my home addition?
A reliable estimate requires a clear understanding of the proposed scope, existing property conditions, structural requirements, materials, and finishes. Detailed drawings and engineering information generally allow for more accurate pricing than preliminary square-foot estimates.
Start Planning Your Home Addition in Etobicoke or Toronto
A home addition is a significant investment, and choosing an experienced general contractor is one of the most important decisions in the process. With over 30 years of residential construction experience, Procon General Contractors understands the planning, structural considerations, and workmanship involved in expanding an existing house. Whether you're planning a rear addition, a two-storey extension, or a complete second-storey addition, we welcome the opportunity to discuss your project.
Contact Frank Ricci at Procon General Contractors to discuss your home addition in Etobicoke or Toronto.
___________________________________________
Contact Paths
Location: 39 Hawkedon Crescent, Etobicoke, ON M9W 3L6
"Procon General Contractors is an owner-operated renovation company operating out of Etobicoke, ON. Proudly serving Toronto, The Kingsway, High Park, The Annex, North York and the surrounding GTA since 1990."