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How to host a holiday open house

How to host a holiday open house where people drop in all afternoon: pick the hours, spread the arrivals, plan food that sits out well, time the refills to the busy stretch, and count back four weeks.

A holiday open house is the friendliest party there is. Nobody has to arrive on time, nobody has to stay all evening, and you get to see the neighbors, the coworkers and the cousins in one afternoon.

It is also the party that catches hosts out, because the crowd is not one number. Ten people at two o’clock and forty at four is a very different kitchen. Plan around when people arrive, not just how many are coming.

Step 1: Pick the date and the hours

Most open houses run three or four hours, on a weekend afternoon or an early weekday evening in December. Write the start and end times on the invitation, so guests know it is a drop-in and roughly when to come.

Do this: put the end time on the invitation too. "Drop in any time from 2 to 5" is clearer than "from 2 PM".

Step 2: Ask when people plan to come

An RSVP that only says yes or no tells you the total, not the crowd. Ask for a rough arrival time as well, even just "early, middle or late". People are happy to say, and it is the single most useful thing you can know.

Then work out how many are in the house at once. If guests stay about an hour, everyone who arrives in the hour before a given moment is probably still there. Add up each slot and the busiest one is your real party size.

Illustrative slot, 2 to 5 PMArrivingIn the house (about a 1-hour stay)
2:00 PM1010
2:30 PM818
3:00 PM1422
3:30 PM1630 (busiest)
4:00 PM925
4:30 PM312

These made-up numbers only show the method: 60 guests in all, but about 30 at the peak. Plan seating, parking, coats and the food for the busiest half hour, not for everyone at once.

Do this: if one slot looks too full, mention a quieter time to a few close friends. They will happily come early.

Step 3: Plan food that sits out well

An open house is a grazing party. Choose food that is good at room temperature or holds in a slow cooker, can be eaten standing up with one hand, and can be topped up from the kitchen without a fuss.

Do not put everything out at the start. Set out a first round, keep the rest in the kitchen and bring fresh trays out before the busy stretch. Perishable food should not sit out for more than about two hours at room temperature, so smaller trays swapped more often are both safer and fresher-looking.

Free party food calculator: how much food and drink to buy for your guest count, with a shopping list

Step 4: Time the refills to the crowd

Write a short timeline for the day, counted from the time the doors open, and put the refills on it. A refill at the start of the busiest slot is worth three refills after it.

Illustrative day, doors at 2:00 PMJob
3 hours beforeFinal tidy, coats space cleared, slow cooker on
1 hour beforeFirst trays plated and covered, drinks chilled, music on
Doors openFirst round out, a helper by the door
Just before the busy slotFresh trays out, cups and napkins restocked, bin emptied
Last hourSmall top-ups only, takeaway cookies by the door
Doors closeFood away within two hours of going out, then the dishes
Ask this: "Could you watch the door from three to four?" One helper at the busy hour lets you actually talk to people.

Step 5: The open house countdown

The pocket version (save or screenshot)

StepThe one thing
1. HoursStart and end time on the invitation
2. Arrival timesAsk when people plan to come, then find the busiest half hour
3. FoodGrazing food that sits out well, in small trays
4. RefillsFresh trays out just before the busy slot
5. CountdownFour weeks out to the last tray, dated

How many people can I invite?

More than you could seat for dinner, because they will not all be there at once. Start from how many people your living space holds comfortably, then invite enough that the busiest half hour stays under that number. If guests stay about an hour over a three-hour open house, you can usually invite two to three times your comfortable room size.

Open house or holiday party?

A holiday party has one start time, a run of show and usually games or a gift exchange. An open house has no schedule for guests at all: the plan is all on the host’s side, in the food, the refills and the helpers. If you want a white elephant or a toast at a set time, it is a party.

What is in the Holiday Open House Planner?

The Holiday Open House Planner is a spreadsheet for Excel, Google Sheets, Apple Numbers or LibreOffice. You type the date, open hours, slot length and average stay, and add up to 200 households with their RSVP and the time each plans to drop in. Maybes count at a share you choose, and guests with no arrival time yet are spread evenly across the day.

The Flow tab shows arrivals and how many are in the house in every slot, with the busiest time and a flag when a slot is more crowded than you want. The day-of timeline has refill reminders that show the crowd at that moment, and the menu and shopping list are sized to the expected crowd.

Hosting a party with one start time instead? The Holiday Party Planner keeps guests and RSVPs, a run of show counted back from the start, a dated checklist, food scaled to your RSVPs, games and the gift exchange.

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Updated 2026-11-06.