Adelaide makes turning 21 easy and fun. From elegant cocktail lounges to cosy pubs and private function rooms, there’s a venue for every style. Most include a free $100 bar tab. Whether it’s a lowkey lunch, a big night out, or a sit-down dinner with friends, browse below to find your ideal 21st birthday venue.
Pricing for 21st Birthday Venues in Adelaide varies based on the venue's pricing model. On average, venues charging a room hire fee cost $700 for Saturday events, with prices ranging from $200 to $2250 across 10 venues. Minimum spend venues typically cost $2442 per booking, ranging from $800 to $9990 based on 16 venues.
Friday pricing is similar, averaging $700 for room hire and $2332 for minimum spend. Minimum spend venues cost approximately 3.5x more than room hire venues on average. Final costs depend on factors including venue capacity, suburb location, day of the week, security guard charges and extensions to the guaranteed hire duration. Additional expenses may include DJ hire, entertainment, specialised catering, decorations.
| Pricing Type | Minimum | Average | Maximum |
|---|---|---|---|
| Room Hire Fee | $200 | $700 | $2250 |
| Minimum Spend | $800 | $2442 | $9990 |
| Pricing Type | Minimum | Average | Maximum |
|---|---|---|---|
| Room Hire Fee | $200 | $700 | $2250 |
| Minimum Spend | $800 | $2332 | $9990 |
Venue pricing varies significantly based on capacity. On average, small venues (up to 70 guests) are more budget-friendly and cost $890 room hire and $1617 minimum spend on Saturday events. Medium venues (71-140 guests) typically cost $512 room hire and $1783 minimum spend, representing a 10% increase over small venues. Large venues (over 140 guests) average $500 room hire and $4670 minimum spend, costing 2.9x more than small venues, reflecting their expanded facilities and capacity.
| Venue Size | Pricing Type | Minimum | Average | Maximum |
|---|---|---|---|---|
| Small (up to 70 guests) |
Room Hire Fee | $250 | $890 | $2250 |
| Minimum Spend | $1000 | $1617 | $3500 | |
| Medium (71-140 guests) |
Room Hire Fee | $200 | $512 | $750 |
| Minimum Spend | $800 | $1783 | $3000 | |
| Large (over 140 guests) |
Room Hire Fee | $500 | $500 | $500 |
| Minimum Spend | $1250 | $4670 | $9990 |
| Venue Size | Pricing Type | Minimum | Average | Maximum |
|---|---|---|---|---|
| Small (up to 70 guests) |
Room Hire Fee | $250 | $890 | $2250 |
| Minimum Spend | $1000 | $1617 | $3500 | |
| Medium (71-140 guests) |
Room Hire Fee | $200 | $512 | $750 |
| Minimum Spend | $800 | $1700 | $3000 | |
| Large (over 140 guests) |
Room Hire Fee | $500 | $500 | $500 |
| Minimum Spend | $1250 | $4352 | $9990 |
Pricing data reflects venues listed as of December 2025.
This is where Partystar comes in. We have a whole range of 21st party spots across Adelaide, including pubs, bars, clubs and more. You are about to find the perfect Adelaide venue for your 21st.
The venues below all allow 21st birthday parties, just click to find the one you like. Happy 21st!
About Partystar: This venue finder booking site will help you find exclusive venues to hire for your private party, in particular your 18th, 21st, 30th, 40th or 50th birthday party, engagement, wedding reception, wake or even the staff Christmas party. Function venues listed are generally pubs, cocktail bars, clubs and some cafes and restaurants. Hire is often free or cheap in locations such as the CBD, Adelaide City area, Norwood and surrounding suburbs.
We find while some people want a stylish nightclub, classy bar or trendy pub venue to impress their friends, others are on the look out for outdoor or unique venues, and some want a cheap function.
