Hiring Before Christmas: Working Backwards From 24 December

Every builder we speak to in September says a version of the same thing: we'll look at it after Christmas.

Then February arrives, the site is short a Supervisor, and the search that was supposed to take six weeks is competing with every other builder who said exactly the same thing in September.

The problem is not urgency. Most hiring managers know the year is closing in. The problem is a piece of arithmetic almost nobody does, and it starts with one distinction.

The hire date and the start date are not the same thing

When a hiring manager says "I need someone in January," they usually mean they need someone working in January. But the decision they are actually making in September is when to open the role, and between those two points sits a gap that is remarkably consistent.

For a salaried role in residential construction, from the day a role is approved to the day the person walks on site is twelve to sixteen weeks. Roughly:

• 2 to 4 weeks to get the role signed off, scoped and advertised

• 3 to 5 weeks of live search, shortlisting and first interviews

• 1 to 2 weeks for second interviews, references and the offer

• 4 weeks of notice, which is standard at this level

Nothing in that list is padding. It is what a normal process looks like when nobody is being slow.

That gap exists in March. It exists in July. December does not create it. December just removes your ability to absorb it, because there is a hard stop in the middle of the calendar and everyone hits it at once.

So the honest version of "I need someone in January" is: I needed to open this role in October.

What actually happens to notice periods over the shutdown

This is where most timelines go wrong, and it is worth being precise.

Notice periods run in calendar time. A four-week notice served from mid-December still ends four weeks later, shutdown or not. The break does not pause the clock, and a candidate who resigns on 11 December is genuinely available in the second week of January.

The constraint is behavioural, not contractual, and it is threefold.

The resignation conversation has to happen while there is someone to have it with. Once a candidate's current employer winds down, that conversation slides into January by default. Not because anyone decided to delay it, but because the manager is on leave.

Offers made in the last fortnight before the shutdown go cold. A candidate handed an offer on 18 December will very reasonably want to think about it over the break. They will talk to their partner, their mates at the Christmas party, and their current boss. That is the single highest-risk window in the year for losing a candidate you have already won.

Handover gets compressed into nothing. A candidate serving notice across the shutdown effectively hands over in about six working days. Good people feel that, and some of them will push their finish date out to do it properly.

The net effect: an offer that lands before the second week of December usually produces a January start. An offer that lands after it usually produces a February one.

The working-backwards calendar

Assume most sites go quiet from Thursday 24 December 2026 and residential builders are back properly from Monday 18 January 2027. Working backwards from a mid-January start:

Milestone	Date
Role approved, scoped and advertised	Monday 26 October
Shortlist agreed, first interviews underway	week of 9 November
Second interviews and references done	week of 23 November
Offer made and accepted	Friday 4 December
Resignation tendered, notice starts	by Friday 11 December
Notice ends	Friday 8 January
On site	Monday 11 to Monday 18 January

Which puts the real deadline in September: if approval takes two to four weeks, the conversation about whether this role exists needs to happen now, not in the last week of October.

The roles that need an earlier start

The calendar above assumes a role with a reasonable candidate pool. Some do not have one.

Estimators, Contract Administrators and experienced Site Supervisors consistently take four to eight weeks longer than everything else, because the people who are good at them are employed, not looking, and have to be approached rather than advertised to. For those roles, subtract another month. If you want an Estimator on site in January, October is already tight.

The same applies to anything with a small talent pool by geography, like a Supervisor for a regional project or a Sales Consultant for a display village in an outer growth corridor.

If you have already missed the window

Missing it is not a disaster. Pretending you have not is.

• Set a February start and run a proper process. A well-run January search that lands a February start beats a rushed December one that lands the wrong person in January.

• Use January deliberately. The first two weeks of the year are the single best moment of the year to reach passive candidates. People come back from the break having thought about their year, and reply rates jump. Have the ad live and the shortlist warm before they do.

• Bridge with contract. If the site genuinely cannot wait, a contract Supervisor or Estimator for six weeks costs less than a permanent hire made in a panic.

• Do not make an offer on 18 December. Either close it by the second week of the month, or hold it and re-engage in the second week of January with the offer intact.

The rule that outlasts December

Christmas is not the lesson. It is just the version of the lesson with a date attached.

The lesson is that the moment you decide you need someone is roughly three to four months before that person is productive on your site, and every hiring plan that ignores that gap ends up as an emergency. Whether the deadline is the shutdown, the start of a new stage, or a resignation you already know is coming, the maths is the same.

Work backwards from when you need the work done, not forwards from when you got around to thinking about it.

If you are weighing up whether to open a role now or wait until the new year, we can tell you in one conversation whether January is still realistic for that specific role. Get in touch with the McKinnel Associates team.