There is no single answer to "how much does a party cost" - a garden birthday with homemade sandwiches and a hired hall costs a fraction of a fully-catered evening with a DJ. What follows are realistic ranges for a typical 30-guest party in Cornwall, so you can see roughly where your own plan sits before you start getting quotes, starting with party caterers in Cornwall.
| Item | Typical range |
|---|---|
| Venue (village or community hall, half-day) | £150 - £400 |
| Catering (self-catered ingredients or a buffet caterer) | £150 - £450 |
| Entertainment (magician, entertainer or DJ, 1-2 hrs) | £150 - £350 |
| Cake | £60 - £150 |
| Decorations | £40 - £120 |
| Photographer (2-3 hrs) | £150 - £350 |
| Contingency (roughly 10%) | £70 - £180 |
What actually moves the number
- Guest count is the biggest lever - catering and cake scale directly with headcount, and venue size usually only jumps in cost once you cross a threshold (most halls have one flat rate up to around 100 guests).
- Day and season - a Saturday afternoon in summer costs noticeably more for venues and photographers than a weekday evening in February, when the same venue may be half price.
- Venue type - a free-to-hire community space and a licensed venue with bar staff can be several hundred pounds apart before you have bought a single decoration.
- Supplier-catered versus DIY - a full-service caterer is convenient but roughly doubles the catering line compared with buying ingredients and doing it yourself.
When you want real numbers rather than ranges, see how suppliers are matched against the budget you set, then compare the quotes that come back side by side.
Book these two first
The venue and any entertainer are the two things that get booked up months ahead for weekend dates in Cornwall, especially over summer. Everything else on this list can flex around what budget is left once those two are confirmed.
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