By Deep Toor | Director, FCC Builders Canada
Updated October 28, 2026
Budget at a glance: hard construction cost is only one part of total project cost. Add land and acquisition costs, professional services, municipal charges, financing and carrying costs, owner equipment, tenant work outside the contract, taxes and appropriate risk allowances. Confirm inclusions to avoid counting the same item twice.
One of the first questions developers and business owners ask when planning a commercial construction project is straightforward: How much will it cost to build?
The answer depends on much more than square footage.
Whether you're developing a retail plaza in Brampton, constructing a hotel in Northern Ontario, converting an existing property into medical offices, or building a new commercial facility in the Greater Toronto Area (GTA), understanding the complete project budget is essential.
Construction estimates often focus on materials and labour. However, the total investment can also include site preparation, development charges, engineering, utility connections, financing, tenant improvements, and expenses that only become apparent after work begins.
At FCC Builders Canada, we work with commercial property owners and developers across Ontario. In this guide, I'll explain how commercial construction budgets are developed, provide current cost benchmarks, identify commonly overlooked expenses, and share practical lessons illustrated by one of our commercial plaza projects.
1. How Much Does Commercial Construction Cost in Ontario in 2026?
Commercial construction costs vary significantly depending on building type, location, size, design complexity, and the scope of work.
As a preliminary reference, the following ranges reflect reported 2026 Greater Toronto Area hard construction cost benchmarks based on the Altus Group Canadian Cost Guide.
Retail strip plaza: $220–$295 per sq. ft.
Budget hotel: $235–$325 per sq. ft.
Four-star, full-service hotel: $365–$565 per sq. ft.
Warehouse: $75–$180 per sq. ft.
Class B office interior fit-out: $110–$150 per sq. ft.
Class A office interior fit-out: $160–$265 per sq. ft.
Important: These are indicative GTA market benchmarks, not FCC Builders Canada's quoted rates. They represent different project scopes and assume typical building characteristics. They are not interchangeable with one another.
Hard construction benchmarks generally exclude land acquisition, professional fees, development charges, financing, taxes, furniture and equipment, and project contingencies. Additional site-specific costs and exclusions depend on the estimate's scope.
A new retail plaza delivered as a commercial shell, for example, is not equivalent to a fully finished restaurant, medical clinic, or office space.
The differences can be substantial.
For a more detailed breakdown of national construction cost trends, refer to the 2026 Altus Group Canadian Cost Guide.
Example: A 10,000-square-foot commercial plaza
Using the indicative GTA strip-plaza range:
Lower-range hard construction estimate: 10,000 sq. ft. × $220 = $2,200,000
Upper-range hard construction estimate: 10,000 sq. ft. × $295 = $2,950,000
This gives a preliminary hard-cost benchmark of approximately $2.2 million to $2.95 million.
It is not the total development budget.
Before making an investment decision, the owner would still need to assess land-related expenses, municipal charges, external servicing, professional fees, financing, contingency, and any tenant improvements not covered by the construction estimate.
These preliminary calculations should never replace a project-specific estimate prepared using drawings, site information, specifications, and local trade pricing.
2. Understanding Hard Costs, Soft Costs and Total Development Costs
One of the most important distinctions in commercial development is the difference between the construction contract value and the total cost of bringing a property into operation.
Hard costs are expenses directly related to physical construction.
They commonly include:
Excavation, grading, demolition, and site preparation
Concrete foundations and structural framing
Exterior walls, roofing, windows, and building envelope systems
Mechanical, electrical, and plumbing installations
Fire protection and life-safety systems
Interior framing, drywall, ceilings, flooring, and finishes
Elevators and other specialized building systems
Exterior paving and site improvements, where included in the contract
Hard costs typically form the largest part of the construction budget, but their proportion of total development expenditure varies substantially from project to project.
Soft costs are expenses associated with designing, approving, financing, administering, and delivering the development.
These may include architectural and engineering services, land surveys, environmental assessments, permits, legal fees, lender costs, insurance, and owner-side project management.
Some costs, such as professional design fees or project management, can be included within a design-build or construction-management arrangement. Owners should review contract inclusions carefully to avoid counting these expenses twice.
A realistic development budget identifies both categories and clearly states what is included, excluded, or carried as a separate allowance.
3. The Hidden Costs of Commercial Construction
A construction budget can appear complete and still omit expenses that materially affect a development's financial feasibility.
Here are several cost categories commercial property owners should investigate before committing to construction.
Municipal approvals and development charges
Building permit fees are only one component of the municipal approval process.
Depending on the municipality and proposed development, additional requirements may include zoning reviews, site plan applications, development charges, engineering submissions, and applicable servicing-related payments.
Fees and requirements can vary between Toronto, Mississauga, Brampton, Vaughan, and smaller Northern Ontario municipalities.
Before finalizing a development budget, owners should obtain current municipal information specific to the property and intended use.
Site conditions and environmental investigations
A property's purchase price does not necessarily reflect the cost of preparing it for construction.
Unexpected soil conditions, groundwater, contaminated material, buried utilities, unsuitable fill, or required demolition may affect the foundation design, excavation strategy, schedule, and overall budget.
Depending on the property, early investigations could include geotechnical testing, surveying, and environmental assessments.
A thorough assessment before construction can help reduce uncertainty and identify risks that are difficult or expensive to address once excavation begins.
Site servicing and utility connections
A building can be structurally straightforward while requiring expensive infrastructure work.
Water and sanitary connections, stormwater management, electrical capacity, transformers, gas services, and telecommunications infrastructure should be evaluated early.
For example, a proposed commercial plaza may require additional electrical infrastructure or drainage improvements to support multiple tenants.
Property owners should confirm both the availability and capacity of existing services rather than assume that nearby connections will accommodate the proposed development.
Design changes and change orders
Change orders may result from owner-requested improvements, unforeseen site conditions, design revisions, or new coordination requirements.
Not every change order represents poor planning. However, late decisions generally carry greater financial and scheduling risks.
For example, relocating plumbing after a concrete slab has been installed may involve demolition, trenching, additional rough-ins, inspection, concrete reinstatement, and subsequent flooring repairs.
Resolving these requirements during design is generally more economical than making the same changes during construction.
Financing and schedule-related expenses
Construction financing should be treated as a separate development cost, not an afterthought.
Depending on the financing arrangement, owners may need to account for interest, lender fees, inspections, appraisal costs, legal expenses, and the timing of progress draws.
If construction extends beyond the original schedule, financing and carrying costs may also increase.
Owners should ensure that their project budgets and cash-flow forecasts reflect realistic approval periods, construction durations, and funding requirements.
Furniture, fixtures, equipment and operational readiness
A completed building is not always ready to operate.
Hotels may require guestroom furniture, signage, appliances, technology, and brand-specific equipment. Restaurants may require commercial kitchens and specialized ventilation. Medical facilities may need additional equipment and interior installations.
These expenses are often categorized as furniture, fixtures and equipment (FF&E), tenant improvements, or owner-supplied items.
They should be identified early, with responsibility clearly assigned between the contractor, owner, tenant, and suppliers.
4. Real Project Example: Commercial Plaza Construction in Brampton, Ontario
FCC Builders Canada — 143–145–147 Clarence Street
A useful example of commercial construction budgeting is FCC Builders Canada's multi-building commercial plaza project on Clarence Street in Brampton, Ontario.
The development consisted of three separate single-storey commercial buildings accommodating more than 35 commercial units, designed for retail, office, and food-service uses.
FCC Builders Canada served as the general contractor, with responsibilities spanning site preparation, building construction, servicing coordination, and the development of functional commercial spaces.
The project's scope included:
Excavation and foundation construction
Structural steel framing
Roofing, exterior cladding, and glazing
Site servicing and utility coordination
Stormwater management and drainage
Parking areas, driveways, and pedestrian access
Fire-rated demising walls
Mechanical and electrical provisions for individual commercial units
The units were delivered to a commercial shell standard, allowing future occupants to complete interior improvements based on their specific business requirements.
What this project illustrates about commercial construction costs
The building shell is only one part of the development.
When evaluating the cost of a commercial plaza, it is important to distinguish between the base building and the additional work required to make each individual commercial unit operational.
For example, a retail tenant may need a comparatively straightforward interior fit-out, while a restaurant may require commercial cooking equipment, exhaust systems, grease management, additional plumbing, and other specialized building services.
These are fundamentally different construction scopes.
Similarly, site infrastructure should not be overlooked simply because it is less visible than the completed building. Parking, drainage, utility connections, and pedestrian circulation are integral to the functionality of a commercial development.
The Clarence Street project demonstrates why commercial developers should establish clear scope boundaries, consider future tenant requirements, and coordinate essential building services during the design and pre-construction stages.
It also illustrates the value of developing a commercial property with flexibility for multiple tenant uses.
View FCC Builders Canada's Clarence Street Commercial Plaza Project
Project photographs and further scope details are available in FCC's project portfolio. Contract values and confidential owner financial information are not included in this case study.
5. New Construction vs. Commercial Renovations: Why Pricing Differs
New commercial construction and renovation projects require different approaches to cost estimating.
In new construction, the contractor generally begins with a defined design and a site that can be assessed before major work begins.
Renovations and building conversions introduce additional variables, including existing structure conditions, accessibility upgrades, fire separations, mechanical capacities, and possible deficiencies concealed behind walls or ceilings.
For example, converting an existing commercial property into a medical clinic may require substantial changes to plumbing, ventilation, electrical distribution, accessibility, and interior layouts.
Even when a building appears structurally sound, these improvements can create significant costs.
Before relying on a renovation budget, owners should investigate existing building conditions and engage qualified design professionals to assess applicable code and occupancy requirements.
This is particularly important for projects involving restaurants, schools, medical facilities, and other specialized uses.
6. How Much Contingency Should You Carry?
A construction contingency is an allowance intended to help manage defined project risks and unforeseen expenses.
For preliminary budgeting, an allowance of 5%–10% of construction costs is sometimes used as an initial planning assumption. However, this is not a universal recommendation.
Projects involving incomplete drawings, uncertain site conditions, major renovations, or complex approvals may require different risk allowances.
A well-developed contingency should reflect the project's actual risk profile, not simply an arbitrary percentage.
It's also important to distinguish between:
Construction contingency: Potential changes and unforeseen issues within the construction scope.
Design or owner contingency: Changes in project requirements, scope, or design decisions.
Escalation allowance: Anticipated changes in pricing between the estimate date and procurement or construction.
These categories should be reviewed carefully so risks are adequately covered without duplicating allowances.
7. How Developers Can Control Commercial Construction Costs
Cost control starts before construction begins.
In my view, one of the most valuable decisions a developer can make is to involve experienced construction professionals early enough to influence the design, budget, and procurement strategy.
Establish a realistic budget during pre-construction
Before proceeding with detailed design, owners should identify the project's intended use, approximate size, location, expected quality level, schedule, and available funding.
An early budget can help determine whether the proposed development is financially viable.
Coordinate consultants and contractors early
Architectural, structural, mechanical, and electrical designs should be coordinated to identify conflicting requirements before they become construction issues.
Early coordination is particularly important where specialized building systems, tenant requirements, and utility infrastructure are involved.
Evaluate materials and building systems through value engineering
Value engineering should not simply mean selecting the cheapest available products.
Instead, it involves reviewing alternative materials, assemblies, equipment, and construction methods to achieve required performance at a more efficient overall cost.
This could include comparing structural systems, simplifying building geometry, reviewing exterior finish selections, or evaluating mechanical equipment based on installation and lifecycle costs.
Define the project scope before accepting a construction price
Contractors may price the same set of drawings differently if the inclusions and exclusions are unclear.
Owners should verify whether quotations include exterior works, utility connections, permits, temporary services, equipment, inspections, and specialized tenant installations.
A lower quotation is not necessarily a lower final project cost if substantial items are excluded.
Monitor changes and maintain cost reporting
Throughout construction, regular financial reporting should identify approved changes, pending changes, committed costs, contingency use, and the forecast final cost.
The goal is to identify potential overruns early enough for the project team to respond.
At FCC Builders Canada, budgeting and cost coordination form part of our broader approach to advisory and pre-construction services.
8. Commercial Construction Budget Checklist
Before commencing a commercial project in Ontario, property owners should be able to answer the following questions:
Has the proposed building use been confirmed against zoning and other applicable planning requirements?
Have site conditions and existing utilities been investigated?
Are architectural and engineering fees included in the budget?
Have permit fees, development charges, and other municipal costs been identified?
Does the construction estimate clearly define hard-cost inclusions and exclusions?
Have tenant improvements and specialized equipment been accounted for?
Is contingency based on the project's actual risks?
Have financing, insurance, and carrying costs been considered?
Is the project schedule realistic for local approval and construction conditions?
Are sufficient funds available for final inspections, commissioning, and occupancy-related requirements?
If several of these questions remain unanswered, the project may not yet have a sufficiently developed budget for reliable financial decision-making.
Frequently Asked Questions
What is the average cost per square foot to build a commercial building in Ontario?
There is no single reliable average applicable to every commercial building. A warehouse, retail plaza, hotel, and medical facility can have substantially different construction requirements.
The 2026 GTA benchmarks above provide preliminary hard-cost reference points. A site-specific estimate is necessary to establish the expected cost of an individual development.
Are architectural drawings and permits included in commercial construction pricing?
Not necessarily. It depends on the contractual arrangement and the contractor's scope. Professional fees, permits, and development charges are frequently treated separately from construction hard costs.
Is commercial renovation cheaper than new construction?
Not always. Renovations may avoid some new-building costs, but existing conditions, demolition, system upgrades, and code-related improvements can increase complexity. The appropriate comparison depends on the building and intended use.
What is the difference between a commercial shell and a turnkey building?
A commercial shell typically provides the base building and defined essential systems, with further interior improvements left to the tenant or owner.
A turnkey scope generally includes a more complete level of fit-out or operational readiness, as defined by the contract. These terms should never replace a detailed scope of work.
When should I contact a general contractor?
Ideally, during the feasibility or early design stage. Involving a contractor before the drawings are finalized can help identify construction costs, procurement challenges, scheduling considerations, and potential design alternatives.
Building With Financial Clarity
Commercial construction is a major investment, and the most successful budgets are built on careful planning, clearly defined scopes, and a realistic understanding of project risks.
A cost-per-square-foot estimate can be useful at the earliest stages, but it represents only one part of the financial picture.
Site conditions, design complexity, municipal requirements, servicing, financing, and occupancy-related expenses all influence the final investment.
For developers and commercial property owners, the objective should not simply be to obtain the lowest construction price. It should be to establish a reliable, transparent budget that supports informed decisions throughout the development process.
At FCC Builders Canada, we provide general contracting, construction management, and pre-construction services for commercial and institutional projects across Ontario.
Planning a commercial construction project in Ontario?
Contact FCC Builders Canada to discuss your project requirements, preliminary construction budget, and next steps.
About the Author
Deep Toor
Director | FCC Builders Canada
Deep Toor is the Director of FCC Builders Canada, an Ontario-based general contracting company specializing in commercial, institutional, hospitality, and multi-residential construction.
His work includes construction operations, project planning, budgeting, procurement coordination, and project delivery across Ontario. Through FCC Builders Canada's commercial construction portfolio, he brings a practical perspective to the financial and operational considerations involved in developing and renovating commercial properties.
Cost Data and References
Pricing note: Benchmarks are expressed in Canadian dollars and are intended for preliminary planning only. They are not project quotations or guarantees. Actual costs depend on location, date of tender, building design, site conditions, scope, and procurement. Review current cost-guide assumptions and obtain a project-specific estimate before making investment decisions.
Plan the next decision
Use the pre-construction checklist to identify missing site information and the construction timeline guide to connect your cost plan with procurement and carrying costs. For a retail development, see lender preparation for a plaza project.
