Then read every quote against one guest list: 18 children and 12 adults, the example used throughout this worksheet. Ask each venue to price that exact headcount, then ask what changes when the numbers move. The answers tell you more about the total than the headline figure does.

What a minimum number actually covers

A play centre might set a minimum of, say, 15 paying children on a weekend slot. That number usually refers to paying children, not the total number of people in the room. Ask whether a minimum is per booking, per hour, or per package. Ask whether it is a floor on the charge or a floor on the guest count. Those two readings produce different invoices for the same party.

An 18-child booking above a 15-child minimum is straightforward. A 14-child booking is the interesting case. Does the venue charge for 15 anyway? Does it move you to a smaller package? Does it cancel the booking? Get the answer in writing before you pay anything, and keep that written answer with the quote.

Ask too whether the minimum changes with the day of the week, the time slot, or the season. A rule that applies on a Saturday afternoon may not apply on a Tuesday. Do not assume, and do not let a phone answer stand in for the written quote. If a venue will not put the minimum rule in writing, that silence is itself information about how the rest of the booking will go.

Siblings, extra children and adults

The sibling question causes the most arguments. Ask whether siblings count inside the package headcount or are charged separately. Ask whether a sibling under a certain age is free, and whether that age is stated in the quote. If the venue publishes no age rule, ask for one in writing. A verbal yes on the phone is hard to rely on three weeks later.

Then adults. Some packages include a set number of adults, some charge per adult plate, some charge only for adults who eat. Ask which of the 12 adults in our example are covered. If a parent arrives without replying, what happens? Is there a plate charge at the door, or a buffer allowance? Ask whether adult drinks are counted separately from adult food.

Bring your own cake is another line. Ask about a cakeage fee, a cutting fee, or a rule against outside food. Ask whether allergies change the menu and whether a change carries a surcharge. These answers belong in the quote, not in a hallway conversation, and they should be there before you compare two venues side by side.

Fewer children than expected

This is the rule most people forget to ask about. Confirm what happens if confirmed numbers drop, and by when you must give the final count. A venue may allow a reduction up to a set number of days before the party, or it may hold you to the original number. Both are workable, but only one protects you when half the class catches a cold.

Ask what happens if more children arrive than confirmed. Is there space, is there food, and what is the extra charge per child? Ask whether the answer is guaranteed or depends on the day, and whether the venue needs notice before extra children arrive.

One honest tradeoff: a package with a low minimum and a high per-child rate is friendlier when attendance is uncertain, while a package with a high minimum and a lower per-child rate rewards a confirmed, full guest list. Neither is automatically cheaper. Run your own numbers for your own expected turnout, and be honest about how many children actually came to the last party you hosted.

Planning illustration: A children’s party budget starts with the guest rules
Editorial illustration

Why the room layout changes the adult plan

Adult space is not a detail. It decides whether parents stay, drop off, or wait outside. Planet Physics describes separate activity spaces for children and designated areas for accompanying parents, according to its science party page. That layout matters when you are counting 12 adults, because a designated adult area is easier to plan around than standing room at the edge of a play floor.

Ask where adults sit, whether they can see the children, and whether food and drink for adults are served in that area. If the answer is vague, visit before you book. A room that works for 18 children can still fail the adult half of the guest list, and the failure is usually about seating rather than space.

If your date falls in the colder months, the questions shift again. Read the winter kids parties guide before you compare indoor quotes, because heating, coat space and indoor capacity rules all affect what you are buying. A packed indoor room in January behaves nothing like the same room in May.

A blank worksheet for 18 children and 12 adults

Use one worksheet per venue, and fill it only from the written quote. Leave a field blank rather than guessing. The point is to compare like with like, not to collect brochures or to fill gaps with optimistic assumptions.

Field Venue A Venue B
Package name and slot
Minimum paying children
Charge if fewer than minimum attend
Deadline for final headcount
Charge per child above 18
Sibling rule and sibling charge
Adults included in package
Charge per extra adult
Adult food included?
Cake: allowed, fee, cutting charge
Drinks for children and adults
Deposit and balance due date
Is tax included in the quoted amount?
Cancellation and date-change terms
Anything the venue excludes

Add two rows of your own for the things that matter to your family. Then total each column on the same assumptions. If a venue cannot fill a row, treat that as an open risk, not a zero. A blank row is a question to send back, not a saving you have found.

Questions worth sending before you compare

Send the same message to every venue, and keep it short. Ask for availability and a written quote for the same date, time and headcount in one request. That way the answers line up and you are not comparing a firm offer with a rough estimate.

State your example guest list: 18 children, 12 adults. Ask for the minimum number, the sibling rule, the adult food rule, and the reduction and addition rules. Ask what the quoted amount includes and what it excludes, and ask which amount any tax applies to, if the quote mentions tax at all. Ask how long the quote is valid, and whether the deposit is refundable.

The play centre venue list is a starting point for shortlisting, not a confirmation of anything. Suitability depends on your date, your group and the venue's own answer. Before you sign, check the activity plan too: a science-style party raises its own questions, and the science party questions cover what to ask about format, age fit and supervision. Then send your guest list and the worksheet fields to the venues that fit, and compare the replies on the same page.

What to send: your date and time window, the 18-child and 12-adult example headcount, your minimum-number question, your sibling and adult food questions, your reduction and addition rules question, and a request for a written quote showing what is included, what is excluded, and which amount any tax applies to.

Planning questions

Why does the same minimum number produce different totals for the same party?

A minimum can be a floor on the charge or a floor on the guest count, and it may be per booking, per hour or per package. Ask which reading applies and get it in writing before comparing quotes.

Which is safer when attendance is uncertain: a low minimum or a high one?

A low minimum with a high per-child rate is friendlier when attendance is uncertain, while a high minimum with a lower per-child rate rewards a confirmed full guest list. Neither is automatically cheaper, so run your own numbers.

Sources & further reading