Construction Decision Sequencing Checklist

List the decisions that affect the shape, position and openings of the building, and treat them as the ones needing your attention first.

Decisions that alter the shell disturb everything drawn afterwards, which is why revisiting them later reaches so much further than a late finish choice.

Ask which of your outstanding choices would change the structure if they were altered later, and record the list in the professional's own words.

Owners are rarely able to tell which choices are structural, and asking directly turns a guess into a stated dependency you can work with.

Only a qualified engineer or architect can say which decisions affect the structure of your building, and nothing in this list is that determination.

Note where you want openings and how you want to move between inside and outside, since those questions sit with the shell rather than the fit-out.

Openings are shell decisions dressed as lifestyle choices, and they are among the least reversible things on the whole project.

Write down any decision you are deferring purely because it feels difficult, then check whether it is actually one of the early ones.

Difficult decisions attract deferral, and the difficult ones are disproportionately the ones that constrain the shell.

Ask what the design team needs settled before drawings can progress beyond the stage they have reached.

Design work stalls quietly when a single input is missing, and the missing input is usually one that nobody said out loud was needed.

Record which shell decisions are waiting on information you do not have yet, such as survey or ground information.

A decision waiting on information is not the same as an undecided one, and confusing the two makes a project look stuck when it is not.

Ask which items have to be selected well before they are installed because of the way they are made or supplied.

Items taken from stock and items made to order behave completely differently, and the difference drives when a choice has to be final.

Note the selections that determine an opening or a provision in the structure, such as anything built into the fabric of the building.

A built-in item constrains the fabric around it, so its selection is really a shell decision wearing a finishes label.

What provision any item needs within the structure is for the design team and the item supplier to establish together and confirm in writing.

Ask whether a choice can be reserved by type rather than by exact selection, so that work can continue while you are still deciding.

It is often possible to fix the requirement without fixing the item, which buys thinking room without holding anything up.

Write down which of your selections nobody has actually confirmed as available.

Availability is assumed far more often than it is checked, and an unavailable choice tends to surface at the exact point it is needed.

Ask what happens on site if a selection arrives late, and who carries the consequence when it does.

The consequence of a late selection always falls somewhere, and agreeing where before it happens is far easier than agreeing afterwards.

Record the point after which each selection can no longer be changed without disturbing work that has already been done.

Knowing the last sensible moment for each choice lets you use the thinking room available without creating rework for someone.

Separate the choices that only affect appearance from those that affect the fabric, and confirm the split with the design team rather than assuming it.

Owners often agonise over choices that could safely wait while unknowingly deferring one that is already holding up the work.

Ask which decisions are genuinely easier to make once the space exists and can be stood in.

Some choices are much better made in the room itself, and knowing which ones they are reduces the pressure to settle everything at once.

Note the decisions you are avoiding because the household disagrees, and treat the disagreement itself as the item to resolve.

A deferred decision hiding a disagreement returns at a worse moment, usually once the work has physically reached it.

Write down what would have to be provided now in order to keep a later option available to you.

Keeping an option open usually requires something to be provided at this stage, and that provision has to be requested rather than assumed.

Ask whether leaving a particular decision open has any consequence for work that has already been agreed.

Open decisions are not free of consequence, and hearing the consequence stated helps you judge which ones are worth holding on to.

Record every deliberately open item in one place, so that open is a status rather than an oversight.

An undocumented open item is indistinguishable from a forgotten one, and both are discovered in exactly the same way.

Ask which of your decisions other people are currently waiting on before they can start their part of the work.

Owners are frequently unaware that they are the constraint, because nobody wants to say so directly until it has become a problem.

Note the points where work by one trade closes off access for another, and ask what has to be decided before each of those moments.

The moments when something is covered up are the real fixed points on a construction project, and they rarely appear in any brief.

Write down which of your decisions depend on another decision rather than on any external event.

A chain of dependent decisions looks like delay when it is really order, and seeing the chain helps you push on the right link.

Ask what is normally decided before anything is covered up, and who is responsible for reminding you when that point is approaching.

The reminder responsibility is worth agreeing explicitly, because nobody feels it is theirs until the moment has already passed.

Record which parts of the work involve someone outside the main team, such as a provider, an authority or a specialist.

External parties work to their own process, so decisions involving them usually need to be made earlier than the rest.

Any dependency involving a utility provider, a statutory body or the local authority runs on their process, which only they can confirm for your project.

Note where a decision affects something that will end up hidden, such as anything inside a wall or beneath a floor.

Hidden provisions cannot be revisited, so decisions touching them deserve more attention than their visibility would suggest.

For each open decision, write down the single person who will make it.

Decisions owned by a household rather than a person tend to stay open, because nobody experiences the discomfort of holding them.

Agree in writing how a decision is to be communicated, so that a conversation on site does not become an instruction by accident.

Casual site conversations are the most common source of disputed instructions, and a stated route for decisions is the usual remedy.

How instructions are issued, and what counts as a variation, is a matter for your contract; discuss it with a qualified adviser before work begins.

Ask who is entitled to make small decisions on your behalf if you cannot be reached quickly.

Somebody will decide when a question cannot wait, so it is better to nominate them than to find out afterwards who it turned out to be.

Note which decisions need a professional's input before you are in a position to make them properly.

Some choices look like owner choices but rest on a technical judgement, and making them unaided is how avoidable problems arrive.

Record when each decision was made and what information you had in front of you at the time.

Decisions look different in hindsight, and recording the basis protects both you and the people who acted on it.

Write down the decisions that were made by not deciding, so that they become visible as choices rather than accidents.

Defaults chosen through silence are still decisions, and they are the ones nobody remembers ever agreeing to.

Ask what the process is for changing a decision once it has already been passed on to other people.

Change is ordinary; changing without a process is what turns a small revision into a disputed one.

Ask for the effects on other trades and orders to be described to you before you confirm any change, rather than afterwards.

Consequential effects are the part of a change that owners least expect and most regret, and they are knowable in advance.

Record the reason for every change alongside the change itself.

Without the reason, changes look arbitrary later on, and the same ground gets covered again by different people.

Ask who needs to be told when a decision changes, and check that the list includes people outside the main team.

Changes routinely reach the main contractor and stop there, leaving a supplier or specialist still working to the previous version.

Note which decisions you would rather not revisit even though they are technically still open to change.

Stating a settled decision as closed helps everyone, including you, stop reopening it at each new opportunity.

Write down anything that has already been changed more than once, and treat it as a signal rather than a coincidence.

Repeatedly changed items usually indicate an unresolved requirement underneath, which is worth addressing rather than deciding again.

Keep one list of decisions rather than several, and make sure everyone involved knows which one is current.

Parallel lists are how two people end up confidently working from different versions of the same decision.

Give every decision a status that distinguishes made, made and communicated, and still open.

A decision that has been made but not passed on has none of the effect of one that has, and the difference is invisible without a status.

Record where the detail of each decision actually lives, such as which drawing or specification carries it.

Decisions recorded only in a register drift away from the documents that actually control the work being done.

Note which decisions have been superseded rather than deleting them from the register.

A superseded decision explains why something on site looks the way it does, and deleting it removes the explanation.

Ask the design team to tell you when they consider a decision closed, so that your understanding matches theirs.

Owners and professionals often hold different views on whether an item is settled, and the mismatch surfaces at the worst possible point.

Whether an item has been formally instructed under your contract is a contractual question to confirm with a qualified adviser, not to infer from a register.

Review the open items regularly and note which ones have not moved at all since the previous review.

Items that never move are usually blocked on something unstated, and the review is where that finally becomes visible.