Module IX·Article II·~5 min read
Contractor Management
Construction and Technologies
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The Role of Contractors in Development
Construction contractors are key performers of a development project. The quality of contractor management directly affects the schedule, budget, and quality of the project. The developer usually does not perform construction work independently—they hire a general contractor, who coordinates the entire construction process.
Contractor Engagement Models
General Contracting
Model: The developer enters into a single contract with a general contractor, who assumes responsibility for the entire range of work and hires subcontractors.
Advantages:
- A single point of responsibility
- The developer interacts with one company
- The general contractor coordinates the subcontractors
Disadvantages:
- General contractor markup (10–20% of subcontract value)
- Less developer control over subcontractors
- Dependence on a single contractor
Construction Management
Model: The developer contracts directly with subcontractors and hires a management company (construction manager) for coordination.
Advantages:
- Savings on general contractor markup
- Direct control over subcontractors
- Flexibility in choosing contractors
Disadvantages:
- More complex management (dozens of contracts)
- Responsibility for coordination lies with the developer
- Strong internal team required
EPC Contract (Engineering, Procurement, Construction)
Model: “Turnkey”—the contractor performs design, procurement of materials, and construction at a fixed price.
Application: Industrial facilities, engineering infrastructure.
Contractor Selection
Selection criteria:
- Experience (portfolio of similar projects)
- Financial status (stability, absence of debt)
- Staff potential (qualification of engineers and workers)
- Technical equipment (own machinery)
- Reputation (client reviews, litigation history)
- Price
Selection procedure:
- Formation of a long list (5–10 companies)
- Pre-qualification (verification of experience and finances)
- Tender (request for commercial proposals)
- Negotiations and contract signing
Contract Models
Fixed Price (lump sum):
- The contractor performs the work for an agreed sum
- Cost overrun risk is borne by the contractor
- Suitable for projects with a clear scope of work
Open Book (cost plus):
- The client reimburses actual costs plus a percentage fee
- Cost overrun risk is borne by the client
- Suitable for projects with an uncertain scope of work
GMP (Guaranteed Maximum Price):
- The maximum price is fixed, and savings are shared between the parties
- Balanced risk allocation
Subcontractor Management
Typical subcontractors on a residential project:
- Earthworks
- Piling
- Concrete works
- Bricklaying
- Façade works
- Electrical installation
- Plumbing and heating
- Ventilation
- Elevator equipment
- Finishing works
- Landscaping
Contractor Risk Management
Interaction with a contractor is associated with a number of risks that the developer must control:
Financial risks:
- Bankruptcy of the contractor during construction—one of the most serious risks. Measures: bank guarantee for the advance payment, regular financial monitoring, payment schedule strictly based on work performed
- Delayed payments to subcontractors (contractor reallocates funds) → work stoppage. Measures: developer's right to make direct payments to subcontractors in case of general contractor default
Quality risks:
- Use of materials below specification: strict incoming inspection, laboratory testing of materials
- Poor performance of concealed works: intermediate certificates for concealed works (reinforcement before concreting, works before screed pouring)
- Use of unqualified workers: requirement for qualification documents
Legal risks:
- Violation of labor laws (illegal workers): the developer bears reputational and legal risk. Measures: audit of contractor’s personnel documentation, contractual liability
- Delays in obtaining permitting documentation due to contractor's fault: penalties in the SPA
International context: In the UAE, RERA requires that off-plan buyers’ funds be kept in escrow and released gradually only upon confirmation of construction progress by an independent engineer—this protects buyers and stimulates contractors to comply with completed stages.
Construction Project Risk Management: Preventive and Reactive Measures
A construction project is exposed to a broad range of risks that must be identified, assessed, and managed proactively. Standard risk classification for a development project: financial risks—budget overrun (the most likely risk: occurs in 60–70% of projects), underfunding, increase in interest rates, fall in demand and insufficient sales to service debt; technical risks—geological surprises during earthworks (rock, contamination, underground water), design calculation errors, failure of technical systems; regulatory risks—changes in zoning rules during the approval process, increased requirements for affordable housing, changes in the Building Code between project start and obtaining a permit; operational risks—bankruptcy of a key contractor (real case: Carillion in UK, 2018—450+ construction projects frozen), shortage of labor, delivery delays; force majeure—pandemics (COVID-19 halted construction in Europe for 2–6 months), natural disasters, geopolitical events. Risk management tools: Risk Register indicating probability, impact, and mitigation actions; insurance (Professional Indemnity, Contractors All Risk, D&O Insurance); contractual mechanisms (fixed-price contract transfers risk of cost overrun to the contractor, liquidated damages—penalties for delays).
Practical Assignment
<details> <summary>Assignment: Tender Documentation</summary>Draw up a list of requirements for a general contractor for a residential project (3 buildings, 600 apartments, 20 floors):
Sample answer:
Mandatory requirements:
- Experience in construction of residential buildings 15+ floors: at least 3 projects in the last 5 years
- Revenue for the past year: at least EUR 30 million
- Membership in professional associations (CIOB, RICS or similar)
- No ongoing bankruptcy procedures
- Bank guarantee for the advance (30% of contract value)
- Willingness to pre-finance works with own funds (30 days)
- Construction all-risk and liability insurance
Proposal evaluation criteria:
- Price: 40%
- Timeline: 20%
- Experience with similar projects: 20%
- Financial stability: 10%
- Technical proposal: 10%
Structure of Payment Schedule with the Contractor
The contract provides for a payment schedule (milestone payments) tied to construction progress:
| Stage | Share of Contract | Payment Condition |
|---|---|---|
| Mobilization advance | 10% | Upon signing + bank guarantee |
| Zero cycle (foundation) | 15% | Foundation acceptance |
| Frame 50% | 20% | Confirmed by technical supervision |
| Frame 100% (roof) | 20% | Closed building envelope |
| Engineering systems | 15% | Test certificates |
| Finishing and façade | 10% | Readiness for handover |
| Handover of the facility | 5% | Occupancy permit |
| Retention | 5% | Warranty period expires (12–24 months) |
Retention protects the developer against latent defects: the contractor is motivated to promptly address warranty cases in order to receive the withheld 5%.
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