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Sequence of a Large Construction Project: Start to Finish

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PHASE A: Client Requirement and Project Definition

1. Client need identification

The client explains why the project is needed: expanding capacity starting a business providing public service or getting a return on investment. The need is described in a document that includes the purpose, size, quality expected budget range and the date the project should be done.

2. Project brief and requirements document

The brief is turned into a document called the Owners Project Requirements. This list includes what the project needs to do how well it should perform, the standards it must meet goals for sustainability and any limits that must be followed.

3. Feasibility study

Checking if the project can be done technically (looking at the site, ground, utilities and access)

Checking if the project can be done financially (looking at costs, returns and where money will come from)

Checking if the project follows rules and is good for the environment

Looking at the market to see if there is a need for the project

4. Go/no-go decision and funding

The client agrees to the project in general sets the budget and finds money to pay for it (using their money, loans, government money or a public-private partnership).

PHASE B: Planning and Team Appointment

5. Hiring a project management consultant or project manager

The client picks someone to manage the project. This person is in charge of the work the cost and the time schedule.

6. Site acquisition and investigation

Buying land and checking the ownership of the land

Making a map of the land and its boundaries

Testing the soil and water under the ground

Checking the utilities and the environment around the site

7. Master. Project execution plan

A big plan is made that includes the schedule, the budget, a list of risks how to buy materials and services and how the project will be built (using design-bid-build design-build, EPC or construction management).

8. Hiring the design team

The client brings in people like an architect, an engineer, a mechanical and electrical engineer and other experts, like a fire safety expert, a facade designer, an acoustics expert, a landscape designer and a traffic expert.

PHASE C: Design

9. Concept design

shape, layout and functional zoning are checked against the client brief and budget.

10. Schematic design

Structural system, space planning and main services are chosen. Cost estimate is updated.

11. Design development

Detailed coordination of architecture, structure and MEP including material and finish selection takes place. BIM clash detection is carried out.

12. Construction documents

drawings, specifications and the bill of quantities (BOQ) are produced and approved by the client.

PHASE D: Approvals

13. Statutory approvals and permits

Building plan sanction

Zoning and land‑use clearance

Environmental clearance

Fire safety approval

Utility connection permissions

These often run in parallel, with late‑stage design and must be tracked as path items.

PHASE E: Procurement and Contracting

14. Tender documentation

Technical specs, commercial terms, drawings and BOQ are packaged.

15. Tendering, bid evaluation and negotiation

Contractors are prequalified bids are. Bids are evaluated on price, experience, capacity and safety record.

16. Contract award

The main contractor and key specialist subcontractors are. Agreements are signed.

17. Early procurement of items

Structural steel, elevators, transformers, chillers, switchgear and facade systems are ordered early.

PHASE F: Pre-Construction and Mobilization

18. Contractor planning

A construction schedule, method statements, quality plan, safety plan and material approval submittals are prepared and approved by the contractor.

19. Site mobilization

Fencing and security are set up.

Temporary offices, stores, labor camps and utilities are established.

Access roads and cranes are installed.

20. Site preparation

Clearing, demolition and levelling are performed.

A surveyor sets out the building positions and levels.

PHASE G: Execution (Construction)

21. Substructure

Excavation and shoring are carried out.

Foundations such as footings, piles or raft are constructed.

Basement work, waterproofing and backfilling follow.

22. Superstructure

Columns, beams, slabs, shear walls and lift cores are built in concrete or steel.

Staircases, roof structure and masonry work follow.

23. Building envelope

Roofing, facades, curtain walls, windows and external doors are installed, making the building weather‑tight.

24. MEP and services installation

Electrical, plumbing, HVAC, fire protection and low‑voltage systems are installed.

Rough‑in is inspected before walls and ceilings are closed.

25. Interior finishing

Plastering, screeding, flooring, false ceilings, painting, joinery and fixtures are finished.

26. External works

Roads, paving, landscaping, boundary walls, drainage and external utility connections are completed.

PHASE H: Testing, Completion and Handover

27. Testing and commissioning

Each system is tested on its own then the whole system is tested, with inspection.

28. Snagging (punch list)

Defects are listed, fixed and re‑inspected until all are closed.

29. Completion certification

Final inspections are carried out followed by a completion or occupancy certificate, from authorities.

30. Handover to client

drawings, O&M manuals, warranties, test certificates, keys and staff training are handed over.

31. Project closeout

Final accounts are settled claims are. Documentation is archived.

PHASE I: Post‑Execution

32. Defects liability period

six to twelve months during which the contractor fixes defects.

Retention money is released at the end.

33. Lessons. Operations

The team reviews performance and the client begins long‑term operation and maintenance.

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