Commercial general contractors (commercial GCs) in Ottawa operate under a different rulebook than residential GCs: Ontario Building Code Part 3 (vs Part 9), AODA accessibility compliance, layered permitting (Public Health, TSSA, ESA, fire alarm), tenant improvement allowance accounting, lease-driven schedules with hard occupancy dates, after-hours and weekend work patterns, higher insurance requirements ($5M+ vs $2M residential), and more sophisticated mechanical/electrical/plumbing coordination. This page covers what commercial GCs do, sector specialization, 2026 cost benchmarks by use, what ...
A commercial general contractor delivers projects through a structured process distinct from residential work: pre-construction, permitting and procurement, construction, then commissioning and closeout. Commercial work involves stricter code compliance, larger trade packages, and tighter documentation, so the GC value lies in preconstruction planning, cost control, and schedule management. In Ottawa commercial market, where tenant fit-outs, retail, office, institutional, and light-industrial pr...
Pre-construction covers estimating, value engineering, constructability review, and a detailed schedule before any work begins. Most commercial projects require a City of Ottawa building permit through the city online client portal, and many also need a change-of-use review, accessibility compliance...
During construction the GC coordinates demolition, structural work, the mechanical, electrical, and plumbing (MEP) trades, fire protection, drywall, and finishes, sequencing City and ESA inspections along the way. Commercial projects demand rigorous documentation: requests for information, shop-draw...
Commercial pricing in Ottawa is usually quoted per square foot and varies by use: a basic office or retail fit-out commonly runs 80 to 200 dollars per square foot in 2026, while restaurant, medical, and lab spaces run far higher because of mechanical, plumbing, and code demands. Ground-up commercial construction is priced project by project. Commercial GCs work under several delivery models, and the right one depends on how complete the design is and how the owner wants to allocate risk.
Stipulated lump-sum (fixed price) suits fully designed projects bid competitively. Construction management, where the GC is engaged early for a fee plus the cost of work, suits fast-tracked or complex projects that overlap design and construction. Design-build puts design and construction under one ...
Commercial work is usually governed by standard CCDC contracts that define scope, schedule, payment, and dispute resolution. Larger or public projects often require performance and labour-and-material payment bonds, so confirm the GC bonding capacity early. Under the Ontario Construction Act, owners...
Selecting a commercial GC in Ottawa is a due-diligence exercise. Verify capacity, financial stability, safety record, and references, and plan the schedule around Ottawa climate where exterior and sitework are involved.
Require proof of commercial general liability insurance appropriate to the project size, often five million dollars or more, plus a current WSIB clearance certificate verified directly through WSIB. Review the GC health-and-safety program and its workplace injury record, since safety performance sig...
Interior fit-outs in established areas such as downtown, the ByWard Market, Kanata North tech park, and suburban commercial centres in Barrhaven, Orleans, and Nepean proceed year-round, though after-hours work is often required in occupied buildings. Ground-up construction, excavation, foundations, ...
The commercial GC market is segmented by sector — and the right GC for your project specializes in your use case. Office fit-out specialists: corporate office buildouts, government office work (significant in Ottawa given federal presence), professional services offices. Examples in Ottawa: Govan Brown, Tactic Construction, R.E.L. Mascaro. Retail buildout specialists: branded retail (banking, telecom, fast-food, specialty retail), lease fit-outs from white-box to brand-standard. Restaurant build...
(1) Speed matters more — every week of delay costs lease, payroll, and lost revenue. Commercial GCs structure projects to compress permit-to-occupancy. (2) After-hours work is common — most occupied-property commercial work happens 6pm-2am weekdays or full weekends. (3) Code complexity — OBC Part 3, AODA Section 3.8 barrier-free design, more stringent fire separation, Public Health for food service, TSSA for refrigeration, ESA for all electrical. (4) Tenant improvement allowance (TI) — landlord ...
Per-square-foot ranges (turnkey including permits, design, demo, M/E/P, finishes, project management — excludes FF&E): Office mid-range buildout: $80-$160/sq ft. Office premium executive: $160-$280/sq ft. Retail standard buildout: $100-$200/sq ft. Retail premium brand-standard: $200-$400/sq ft. Restaurant full kitchen + dining: $250-$500/sq ft. Restaurant premium fine dining: $400-$700/sq ft. Medical/dental clinic: $200-$400/sq ft. Light industrial: $50-$120/sq ft. Hospitality guest room refresh...
Most Ottawa commercial projects use standard CCDC contracts that define scope, schedule, payment, and dispute resolution, often paired with performance and labour-and-material payment bonds on larger or public work. Under the Ontario Construction Act, owners retain a ten percent statutory holdback and follow prompt-payment and adjudication rules, with the holdback released after the lien period that follows substantial performance. A disciplined commercial GC manages progress billing, lien waivers, change directives, and closeout documentation rigorously, which protects the owner from payment disputes, scheduling slippage, and unexpected liens from unpaid subtrades.
A commercial GC manages multi-trade commercial construction: office, retail, restaurant, medical, industrial. Responsibilities span permit application (building, plumbing, ESA, fire alarm, Public Health, TSSA), AODA compliance, scheduling around occupied-property constraints, M/E/P coordination, TI allowance accounting, and commissioning. Operates under OBC Part 3 vs residential Part 9.
Per-square-foot ranges: office $80-$280, retail $100-$400, restaurant $250-$700, medical/dental $200-$400, light industrial $50-$120, hospitality $35K-$85K per guest room. Adaptive reuse adds 30-50% premium. Total project cost depends on square footage, finish tier, after-hours requirements, and AODA work needed.
Match the GC to your sector — office, retail, restaurant, medical, industrial all require different specialization. Verify 5+ years dedicated commercial portfolio, $5M+ insurance, WSIB clearance, bonding capability for projects over $250K, AODA experience, and at least 3 recent references in your sector. Don't hire residential GCs for commercial work.
Permits 8-16 weeks before construction. Small office refresh 6-10 weeks construction; full office buildout 10-20 weeks; restaurant 12-20 weeks; medical/dental clinic 14-24 weeks. After-hours and phased work extends timelines 30-60%.