Fit-Out Programme and Phasing: How the Sequence Really Runs

The shape of a fit-out programme

Most fit-out programmes look like a sequence of construction activities. The useful way to read one is as four workstreams running at different speeds:

Workstream	Runs from	Governed by
Decisions	Brief	Client availability and clarity
Procurement	Design freeze	Manufacturing lead times
Approvals	Design	Authorities and the landlord
Site works	Access	Sequence, not headcount

Delays in the first two are invisible on site for weeks, then arrive all at once.

The critical path is usually not on site

On a typical fit-out the longest chain runs:

Brief → layout freeze → procurement of the longest-lead item → its delivery → the trade that installs it → the trades queued behind that → commissioning → handover.

Notice how much of that chain is off site. This is why "we will add more people" is rarely an answer, and why a contractor's programme is worth reading for its logic rather than its dates.

Design freeze is the milestone that matters most

Programmes slip at the front far more often than at the back.

The usual cause is organisational: the layout is nearly settled, one stakeholder has not confirmed, and the package cannot be released. That is not a design problem and cannot be solved by the design team.

Two controls work:

• Name the person who signs off, and the date they will do it. Put it on the programme as a milestone with the same status as a delivery.
• Release settled packages early rather than waiting for the complete set.

Long-lead items decide the date

Anything made to order governs. The practical approach is to list them at the start, with the date each must be ordered to meet the target, and to work backwards from there to what information is needed and when.

The trade-off is explicit: an item ordered early is expensive to change. That is a decision to take with eyes open, not a reason to delay all procurement.

The ceiling sequence is the middle of the programme

Above the ceiling, trades need the same space in order: structure, then main ductwork, then sprinkler pipework, then cable containment, then lighting, then the ceiling.

Out of order, work gets partly undone. The prevention is a coordinated services drawing agreed before installation starts, checked at the tightest point on the floor. Building services provisions sit in NBC 2016, Part 8.

This single item accounts for more mid-programme delay than any other.

Phasing an occupied floor

Common, workable, and slower than an empty floor. Plan for:

• Out-of-hours working for noise and dust, with the landlord's permitted hours confirmed in advance
• Physical separation — dust screens, protected routes, temporary partitions
• Escape arrangements maintained throughout, which is a fire safety matter under NBC 2016, Part 4 and must be agreed with the fire consultant
• Services isolations planned so live areas stay operational
• Decant space — people have to sit somewhere during their phase
• Materials movement through a building in use, with lift bookings

Each phase also needs its own completion, which is why sectional completion belongs in the contract from the start rather than being arranged later.

Commissioning is not spare time

Because it sits at the end, commissioning absorbs every upstream delay. It is also invisible, so compressing it looks free.

It is not. Air balancing, control verification, interface testing and fresh air measurement are what determine whether occupants are comfortable, and they cannot be done properly on a floor full of furniture and people.

Put commissioning in the programme as a duration with a start date, and protect it.

What to ask before agreeing a date

• Who signs off the layout, and when?
• What are the long-lead items, and what is the last order date for each?
• By what dates does the contractor need decisions and information from us?
• Has a coordinated services drawing been produced and checked at the worst point?
• What approvals are needed, who is running them, and how long do they take?
• Is the floor occupied during the works, and is the phasing planned?
• How long is allowed for commissioning, snagging and handover?

Standards referenced

Fire and life safety provisions, including escape arrangements during works, in NBC 2016, Part 4; building services provisions in NBC 2016, Part 8. Statutory requirements, approval durations and the arrangements for working in an occupied building for a specific project must be established by the project's consultants, the landlord and the authority having jurisdiction.