Bikini Bottom Undersea Party

LEGO^® SpongeBob SquarePants 3818 Bikini Bottom Undersea Party

SpongeBob SquarePants

The Lego set Bikini Bottom Undersea Party with the Lego number 3818 is part of the LEGO SpongeBob SquarePants theme and is recommended for ages 6 - 12. The set was released in January of 2012. It contains 4 minifigures. The model consists of a total of 471 parts and we estimate it takes you around 1 hour to build it. 14 Brickfact users have this set in their collection.

The set weighs around 0.770 kg in total. The packaging dimensions are 18.9 x 11.1 x 2.4 inch( 48 x 28.2 x 6.1 cm). The recommended retail price is $49.99.

The Part-Out-Value (POV) is the sum of all part prices paid on bricklink.com for this set. It is about $135.39.

Lego 3818 product data

Set Information

Set ID

3818

Theme

SpongeBob SquarePants

Pieces

471

Building Time

1 hour

Age Range

6 - 12

Availability

Release

01/2012

Retiring Status

Retired (12/2013)

Price Information

RRP

$49.99

Insiders Points (for purchase at Lego)

325

Part Out Value

$135.39

Packaging

Weight

0.770 kg

Packaging dimensions

18.9 x 11.1 x 2.4 in

EAN (GTIN13)

5702014842311

Popularity with Brickfact users

users have this set: 14

14 Brickfact users have Bikini Bottom Undersea Party in their collection.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of October 14, 2026.

LEGO 3818 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value: $283.94
Growth vs. RRP: +468 % $49.99
Range: $200.55 – $329.65
Average: $239.15

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Minifigures from 3818 Bikini Bottom Undersea Party

The Bikini Bottom Undersea Party set includes 4 different minifigures, 4 of which are unique to this set. The combined value of the minifigures is $55.30, which is ~111% of the RRP of this set.