Set 3818
Bikini Bottom Undersea Party
Retired Nov 2013Retail price$49.99What LEGO charged
Worth now$371.28Typical sealed asking price · 14 listings
Recently sold—No recent sales on file
vs retail+643%Worth more than it cost
Proven performer
Up 643% on its $50 retail price since retiring. Pay under $224 to still make a margin reselling.
How much is LEGO 3818 Bikini Bottom Undersea Party worth?
LEGO 3818 Bikini Bottom Undersea Party is worth about $371.28 sealed right now, based on 14 live sealed listings on eBay. That's 643% above its $49.99 retail price. It came out in 2012 with 471 pieces and 4 minifigures. It was retired in Nov 2013. We last checked it 4 days ago.
Price history
Value history
Oct 23$37114 listings
- Lowest
- $368
- Highest
- $371
- Change
- +1%
- Asking vs retail
- +643%
2 observations · median asking · rechecked 8× daily · early days — a line drawn through 2 readings shows what we measured, not a trend
Should you buy it?
Retired 13 years ago and now 7.4× retail. The people who bought two are very happy.
If you bought it to resell
Sells sealed for$371
Marketplace fees · 15.25%−$57
Payment processing · 2.9% + $0.30−$11
Shipping · est. from 471 pieces−$13
Reaches you$290
Pay no more than$223
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Used
$112
5 sold in six monthsCompleted BrickLink transactions over the last six months. Real sales, not asking prices.
Set details
- Set number
- 3818
- Theme
- SpongeBob SquarePants
- Released
- 2012
- Status
- Retired Nov 2013
- Pieces
- 471
- Minifigures
- 4
- Retail price
- $49.99
- Value per piece
- $0.788
- Price confidence
- high · 14 listings
- Last checked
- 4 days ago
Where these numbers come from
eBay14 live listingsThe asking price here — the median of what sellers want right now, $371. Last checked Oct 23.See the listings →BrickLinkPrice guideNo completed sales recorded for this one yet. Last checked Oct 25.Open the price guide →Catalogue471 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $50.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More SpongeBob SquarePants sets from around 2012
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▲ 800% vs retailRetired3816 · 2011Glove WorldSpongeBob SquarePants · 169 pcs$1807 listings · retail $20Proven performer
▲ 901% vs retailRetired3815 · 2011Heroic Heroes of the DeepSpongeBob SquarePants · 95 pcs$15010 listings · retail $15Proven performer
▲ 1744% vs retailRetired3827 · 2006Adventures in Bikini BottomSpongeBob SquarePants · 579 pcs$7376 listings · retail $40Proven performer