Construction Management FAQ

A construction manager (CM) is a professional who oversees a construction project on behalf of the owner, managing trade contractors, schedules, budgets, and quality control. The key difference from a general contractor (GC) is the contractual model: a GC provides a single fixed-price bid for the entire project and assumes financial risk for cost overruns, while a CM is engaged as a fee-based manager — the owner sees every invoice, every trade cost, and every material markup with full transparency. There is no lump-sum bid concealing contingency or profit margins inside line items. The CM's compensation is a defined management fee, not a markup hidden inside construction pricing.

In agency construction management, the CM acts purely as the owner's representative — advising, scheduling, and coordinating — but does not hold the trade contracts or guarantee the price. The owner contracts directly with each trade. In at-risk (CMAR — Construction Manager at Risk), the CM holds the trade contracts and later provides a Guaranteed Maximum Price (GMP), assuming financial risk for overruns beyond that figure. Agency CM offers maximum transparency and owner control; at-risk CM offers more cost certainty and single-point accountability. Luxury custom home projects in Toronto most commonly use a hybrid: the CM manages trades on an open-book, cost-plus basis during preconstruction, then converts to a GMP once drawings are substantially complete.

Choose construction management when your project involves complexity, customization, or phasing that makes a fixed-price bid either impractical or inflated. Custom luxury homes in Toronto's established neighbourhoods — Forest Hill, Rosedale, Bridle Path — frequently involve heritage considerations, complex structural work, bespoke finishes, and long timelines, all factors that push a GC's contingency higher. The CM model is also preferable when you want full cost transparency, when the design is still evolving during construction (fast-tracking), or when you want trade selection to be a collaborative decision rather than a subcontractor the GC chose on price alone.

A traditional GC bids a lump sum that includes their overhead, contingency for unknowns, and profit margin — typically 15–25% on top of hard costs. A construction manager charges a defined management fee (typically 8–15% of construction cost) and passes trade and material costs through at actual price with no hidden markup. Because the owner sees real costs and participates in trade selection, there is no inflated contingency built into a bid, no markup on subcontractor pricing, and no incentive for the CM to use cheaper trades to widen their margin. On a $2M custom home, the difference between a 20% GC markup and a 12% CM fee can represent $160,000 or more.

A CM fee covers project management services: preconstruction planning, cost estimating and value engineering, trade tendering and procurement, construction scheduling, on-site supervision, quality control, safety management, subcontractor coordination, payment certification, and project closeout. It does NOT include the cost of construction itself — labour, materials, trade subcontractors, permits, or equipment rentals. Those are passthrough costs billed at actual price. The fee is the CM's compensation for management expertise, not a markup on construction costs.

The most common structures are: (1) a percentage fee — typically 8–15% of total construction cost, decreasing as project value increases; (2) a fixed lump-sum fee — agreed during preconstruction once scope is defined; (3) a cost-plus-fixed-fee — the CM passes through all costs at actual price plus a fixed management fee regardless of final construction cost. For luxury custom homes in the $1.5M–$5M range, percentage fees of 10–12% are typical. Below $1M, percentage fees may rise to 15%+ because fixed management overhead is spread over a smaller project. The fee structure must be defined in the construction management agreement before any work begins.

A GMP is a contractual cap on the total construction cost that the construction manager guarantees. If actual costs exceed the GMP, the CM absorbs the overrun — unless caused by owner-directed changes or force majeure. If costs come in below the GMP, the savings are typically shared between owner and CM per a negotiated percentage, often 50/50 or 60/40 in the owner's favour. A GMP is set after design documents are substantially complete — usually at the end of the construction documents phase. It provides cost certainty while preserving the cost transparency of the CM model.

In a pure CM (agency or open-book at-risk) model, no. Trade contractors are tendered competitively, their actual bids are presented to the owner, and the contract is awarded at the bid price. The CM's compensation is the management fee, not a markup on trade costs. This is a fundamental distinction from the GC model, where subcontractor pricing is bundled into the lump-sum bid and the GC's actual subcontractor costs are not disclosed. Always confirm in your CM agreement that trade costs are passed through at actual bid price with no additional markup.

The CM fee does not cover: trade contractor labour and materials, building permits and municipal fees, development charges, engineering and consulting fees (structural, mechanical, electrical, civil), architect and interior designer fees, surveying and geotechnical reports, utility connection fees, Tarion warranty registration for new home construction in Ontario, HST, contingency for owner-directed changes, or owner-furnished items like appliances and specialty lighting. These are all separate costs billed directly or passed through at actual price.

A luxury custom home in Toronto typically takes 14–24 months from design start to occupancy, broken down as: schematic design (2–3 months), construction documents and permit drawings (2–4 months), building permit application and review (2–4 months depending on complexity and neighbourhood), and construction (10–16 months for a 4,000–8,000 sq ft home). Heritage properties or properties requiring Committee of Adjustment variances add 2–6 months to the preconstruction phase. Complex sites with demolition, underpinning, or significant structural work can push construction to 18+ months.

For a custom home in Toronto, the building permit review typically takes 4–8 weeks after a complete application is submitted, assuming no zoning or bylaw issues. Complex or large-scale projects may take 10–16 weeks. If the property requires Committee of Adjustment approval for variances (setbacks, height, lot coverage), add 4–6 months before the permit application can even be filed. Heritage-designated properties require Heritage Preservation Unit review, adding 4–8 weeks. Properties in ravine-protected areas require Toronto and Region Conservation Authority (TRCA) permits, adding 2–4 months.

The Committee of Adjustment (COA) is a Toronto municipal panel that adjudicates minor variances from zoning bylaws — reduced setbacks, increased height, expanded lot coverage, or reduced parking. A COA application is required when your design does not comply with the zoning bylaw but the non-compliance is considered "minor." The process takes approximately 4–6 months: a complete application, 20-day public notice period, hearing date (typically 6–8 weeks after submission), committee decision, and a 20-day appeal period. If a neighbour appeals, the matter goes to the Ontario Land Tribunal (OLT), adding 6–12+ months.

No — not legally. Under the Ontario Building Code, no construction work requiring a permit may begin before the permit is issued. Beginning work without a permit in Toronto can result in stop-work orders, fines of up to $25,000 for a first offence under the Building Code Act, and the requirement to undo non-compliant work. However, certain preparatory work can proceed: site survey, geotechnical testing, demolition permit (if separately issued), and procurement of long-lead materials. A construction manager sequences these activities to minimize schedule impact during the permit review period.

A custom home in Toronto typically requires: (1) a demolition permit if removing an existing structure, (2) a building permit — the primary construction permit, (3) electrical permits (ESA permits filed by a licensed electrician), (4) plumbing permits, (5) HVAC permits, (6) a foundation permit sometimes issued separately to allow early excavation, and (7) a sign permit for construction hoarding and fencing. Heritage-designated properties require a Heritage Permit. Ravine-protected areas require a TRCA permit. Road occupancy permits are needed for construction vehicles on public roads, and utility connection permits are required from Toronto Hydro, Enbridge, and the City for water and sewer connections.

Development charges (DCs) are municipal fees levied on new construction to fund infrastructure growth. For a new single-family home in the GTA, DCs can range from approximately $40,000 to $80,000+ depending on the municipality — Toronto's rates have been reduced in recent years but surrounding municipalities like Vaughan and Markham often charge more. For a replacement home (demolition and rebuild), DCs may be partially credited if the previous structure existed legally. DCs are payable before the building permit is issued. Your construction manager or architect will calculate the exact liability during preconstruction and it should appear as a line item in your project budget.

Tarion (the Ontario New Home Warranties Plan) is the provincial warranty program for new homes. If you are building a new home for your own use, Tarion enrollment is not mandatory but is strongly recommended — it provides deposit protection, warranty against defects in materials and workmanship (one year), water penetration (two years), and major structural defects (seven years). If you are building a home for sale, Tarion enrollment is legally required under the Ontario New Home Warranties Plan Act. The builder must be a registered Tarion builder. Enrollment fees range from approximately $1,500–$3,500 depending on home value.

For a property designated under the Ontario Heritage Act or listed on the City of Toronto's Heritage Register, any alteration requires a Heritage Permit from the City's Heritage Preservation Unit. For designated properties, the process involves submitting detailed drawings and a Heritage Impact Assessment, staff review (4–8 weeks), potential review by the Toronto Preservation Board, and City Council approval for major alterations or demolition (3–6+ months). Demolition of a designated property requires Council approval, which triggers a 60-day waiting period minimum. Properties in Heritage Conservation Districts, such as parts of Rosedale and the Annex, have additional design guidelines governing exterior appearance.

In the CM model, the construction manager is typically engaged during or immediately after schematic design — earlier than a traditional GC, who is brought in after construction documents are complete. The CM provides constructability input, preliminary cost estimates, and value engineering during design development, allowing design decisions to be informed by real cost data. During construction, the CM implements the architect's drawings, issues RFIs (requests for information) when drawings need clarification, reviews shop drawings, and coordinates inspections. The CM does not design — that remains the architect's role — but the CM's early involvement prevents the costly cycle of designing, bidding, then discovering problems during construction.

In the CM model, changes are handled transparently: the owner requests a change, the CM prepares a change order pricing the cost (trade contractor pricing plus materials plus any schedule impact), the owner reviews and approves or rejects it before work proceeds, and the cost is added to or deducted from the project budget. Unlike the GC model where change order pricing includes the GC's markup on top of already-marked-up subcontractor pricing, CM change orders typically reflect actual cost plus the proportional management fee. There is no incentive for the CM to generate change orders — in a fixed-fee structure, the management fee does not increase with additional construction cost.

A construction manager should carry: (1) commercial general liability insurance — minimum $5M per occurrence for residential construction in Toronto, (2) professional liability insurance (errors and omissions) — typically $2M–$5M, covering design errors if the CM provides any design services, (3) WSIB (Workplace Safety and Insurance Board) clearance for Ontario — confirming the CM and all trades are registered and in good standing, (4) builder's risk insurance (course of construction) — covering the property during construction, typically $1M–$10M depending on project value, and (5) a performance bond if the CM is providing a GMP — typically 50–100% of the contract value. Request certificates of insurance for all coverages before construction begins.

In Ontario, there is no single mandatory licence for construction managers, unlike plumbers or electricians who must be licensed. Verify qualifications by: (1) checking Tarion registration if they are building new homes, (2) confirming WSIB clearance, (3) requesting references from at least three completed projects of similar scope, (4) verifying insurance certificates, (5) checking membership in professional associations such as the Canadian Construction Association (CCA), the Toronto Construction Association (TCA), or the Ontario General Contractors Association (OGCA), and (6) reviewing their project portfolio for completed luxury residential work in Toronto's established neighbourhoods. Ask for the specific CM's name and credentials who will be assigned to your project — not just the firm's.

Luxury custom homes in Toronto in 2026 typically range from $400–$800+ per square foot in hard construction costs, depending on finishes, complexity, and site conditions. A 5,000 sq ft luxury home at $600/sq ft equals $3M in construction cost. Soft costs — architect, interior designer, engineering, permits, development charges — typically add 15–25%. Land cost is additional. Ultra-luxury homes with imported stone, custom millwork, smart home integration, and basement excavation can exceed $1,000/sq ft. These figures exclude land, landscaping, pool, and owner-furnished items. A construction manager provides real-time cost tracking against budget throughout the project, which a fixed-price GC does not.

Value engineering is the process of analyzing design decisions to achieve the desired function and aesthetic at the lowest cost without sacrificing quality. In the CM model, this happens during preconstruction — before materials are specified and trades are engaged. Examples: substituting a locally-quarried stone with similar appearance for an imported Italian marble at 40% less cost, redesigning a structural element to reduce steel tonnage, or re-sequencing trades to reduce scaffolding rental time. The CM model is uniquely suited to value engineering because the CM sees actual trade pricing during preconstruction and can present the owner with costed alternatives before commitments are made. A fixed-price GC has no incentive to value engineer — their profit increases with cost.

A construction manager maintains a live project budget — typically updated weekly or bi-weekly — showing: committed costs (trade contracts awarded), actual costs (invoiced and paid), forecast costs (for remaining scope), and contingency remaining. The owner receives regular budget reports showing variance from the original budget and projected final cost. This is a fundamental advantage over the GC model, where the owner sees only the lump-sum contract amount and change orders, with no visibility into how individual trades or materials are tracking against budget. Ask your CM what reporting format they use and how frequently budget updates are provided.