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Planning a kids' party shouldn't feel like project management, but somewhere between the guest list, the cake and the WA weather forecast, it usually does. Here's the week-by-week checklist we share with Perth families — refined by hundreds of parties — that works whether you're hosting at home, at a park or in a hall.Backyard — cheapest and easiest; check you have roughly 6m x 5m of flat lawn if a castle is on the wish list Public park — brilliant for big guest lists, but most Perth councils require approval for inflatables, and that takes 2–6 weeks. Our Perth park party guide lists the best spots and each council's rules Community hall — the weather-proof option; confirm ceiling height (our castles need about 5m) and power access Send invitations with a clear RSVP date (a week before the party) Apply for your council park permit if applicable — we'll email our $20M insurance certificate for the application Order or plan the cake Book any extras: the 4-in-1 carnival games are $150 added to a castle booking against $230 on their own, and a generator is $50 if your park has no power Chase RSVPs and note dietary requirements Plan the menu — the Perth classics never fail: sausage sizzle, fairy bread, fruit platters, and far more water than you think you need Buy decorations, plates, cups and party bag fillers Think through the party timeline: arrival games → castle time → food → cake → castle time → home. Kids' parties run best at 2–3 hours total Check the forecast and make the weather call early — for heat, shift the party to 9–11am; for rain, remember we reschedule castle bookings free if conditions are unsafe Confirm your delivery window with us Assemble party bags Recruit two helpers: one on food, one on castle supervision (rotating 20-minute shifts — see our safety guide for the supervision rules that matter) Clear the castle area completely: toys, hoses, dog surprises, sprinkler heads flagged Test the outdoor power point; if the party's at a park, confirm the generator is on your booking Make ahead whatever food survives the fridge Charge the camera, buy the ice We arrive 30–45 minutes before your start time, set up, anchor and run the safety briefing Sunscreen station by the door — SPF 50+, because it's Perth Shade and water station set up before the first guest During:Run the castle in age-group shifts to keep it safe and fair Food after the first big bounce session — never immediately before Cake mid-party, not at the end (early-leavers won't miss it, and you get the photo while everyone's fresh) After:We come back and handle the entire pack-down — that part of the checklist is ours Party bags at the gate, leftovers in the fridge, feet up Entertainment (jumping castle, 5 hours): $330, delivered and set up Food and drinks: $100–150 for sausage sizzle supplies, snacks, juice and ice Cake: $50–120 depending on bought vs homemade Decorations and tableware: $40–60 Party bags: $5–8 per child That lands most parties in the $600–$850 range — and the castle is the line item kids actually remember. If the budget's tight, trim decorations first (nobody's ever left a party raving about the bunting), keep the castle, and make the cake at home.
Ready to tick the biggest box on the list? Book your bouncy castle online or call 0493 595 965 — free delivery within 15km of Perth CBD, fully insured, and the kids will talk about it for weeks.
6 Weeks Out: The Big Decisions
Pick Your Venue
Set the Guest List and Budget
A realistic Perth party budget has four buckets: entertainment, food, cake, and party bags. Locking the guest list early controls all four. For entertainment, our 2026 price guide breaks down what castle hire actually costs — short version: from $330 including delivery, setup and pack-down.Book the Entertainment
Weekend dates for jumping castles book out 2–3 weeks ahead in Perth — longer for water slides in summer and anything in school holidays. Check availability and book online, and if you live in suburbs like Ellenbrook or Baldivis where weekend slots go fastest, book even earlier.4 Weeks Out
2 Weeks Out
1 Week Out
2 Days Out
Party Day
Morning:A Realistic Perth Party Budget
To help you plan, here's what a typical 20-kid backyard birthday actually costs in Perth:The Cheat Sheet
If you only remember five things: book entertainment 3+ weeks out, apply for park permits early, plan for heat, brief your supervision helper, and let the professionals handle setup and pack-down. Everything else is just snacks.Ready to tick the biggest box on the list? Book your bouncy castle online or call 0493 595 965 — free delivery within 15km of Perth CBD, fully insured, and the kids will talk about it for weeks.
