An Extension of Time Letter is a critical document used in Swiss construction and project management contexts when circumstances necessitate a modification to originally agreed project timelines. This document, governed by Swiss law including the Swiss Code of Obligations (OR) and relevant SIA norms, is typically required when unforeseen events, external factors, or other justified circumstances impact the project schedule. The letter must include specific details about the delay event, its impact on the project timeline, mitigation measures taken, and supporting evidence. It serves as both a formal notification and a request for additional time, helping to maintain clear communication between parties and protect contractual rights. The document is particularly important in Swiss jurisdiction where formal documentation of contract modifications is essential for legal protection and project record-keeping.
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1. Letter Header: Formal business letter header including date, recipient details, project reference number, and contract reference
2. Subject Line: Clear indication that this is an Extension of Time Request for the specific project
3. Contract Reference: Reference to the relevant contract clause(s) under which the extension is being requested
4. Current Programme Status: Brief statement of the current project status and existing completion date
5. Extension Request: Clear statement of the additional time being requested and new proposed completion date
6. Delay Event Description: Detailed description of the event(s) causing the delay
7. Impact Analysis: Explanation of how the delay event affects the project timeline
8. Mitigation Measures: Description of steps taken or proposed to minimize the delay impact
9. Closing: Request for review and approval, with signature block
1. Cost Implications: Include when the delay events result in additional costs that need to be addressed
2. Third Party Delays: Include when delays are caused by other contractors or third parties
3. Force Majeure Declaration: Include when the delay is caused by force majeure events as defined in the contract
4. Concurrent Delays: Include when there are multiple delay events occurring simultaneously
5. Previous Correspondence: Include when referencing prior communications about the delay event
1. Delay Analysis Report: Detailed analysis of the delay event and its impact on the project schedule
2. Updated Programme: Revised project schedule showing the impact of the delay
3. Supporting Documentation: Relevant correspondence, photographs, weather records, or other evidence supporting the delay claim
4. Critical Path Analysis: Analysis showing how the delay affects the project's critical path
5. Meeting Minutes: Records of relevant meetings discussing the delay event
6. Notice Records: Copies of any previously issued delay notices or early warnings
Relevant legal definitions
Clauses
Relevant Industries
Construction
Infrastructure
Real Estate Development
Manufacturing
Engineering
Energy
Transportation
Public Works
Industrial Development
Commercial Development
Telecommunications
Mining
Healthcare Construction
Education Construction
Relevant Teams
Legal
Project Management
Construction Management
Contract Administration
Commercial
Planning
Project Controls
Risk Management
Operations
Technical Services
Relevant Roles
Project Manager
Construction Manager
Contract Administrator
Project Director
Site Manager
Claims Manager
Commercial Manager
Legal Counsel
Planning Engineer
Project Control Manager
Construction Director
Technical Director
Chief Engineer
Contracts Manager
Risk Manager
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