How many pieces does the LEGO Bikini Bottom Undersea Party (3818-1) have?

The LEGO Bikini Bottom Undersea Party set (3818-1) contains 471 pieces. It was released in 2012 as part of the LEGO SpongeBob SquarePants theme.

How can I find missing parts for LEGO set 3818-1?

On BrickMissing you can check which parts from the LEGO Bikini Bottom Undersea Party (3818-1) you already own. Add your LEGO collection and we'll show exactly which of the 471 pieces you're missing and which you already have.

Can I build the LEGO Bikini Bottom Undersea Party with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 471 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Bikini Bottom Undersea Party from?

The LEGO Bikini Bottom Undersea Party (3818-1) belongs to the LEGO SpongeBob SquarePants theme. You can browse all SpongeBob SquarePants sets on BrickMissing to find more sets from this theme.

Bikini Bottom Undersea Party

3818-1 SpongeBob SquarePants 2012 471 parts 3% catalog rarity Intermediate

The LEGO SpongeBob SquarePants Bikini Bottom Undersea Party 3818-1 brings the underwater celebration to life with 471 pieces. SpongeBob hosts a grand gathering, featuring Patrick on the DJ turntable spinning tunes and Squidward managing the juice bar, complete with its cabinet. A highlight of the party involves SpongeBob himself catapulting the party cake at Mrs. Puff, adding a dynamic play element. The set includes SpongeBob’s distinctive house, measuring 15cm wide and 20cm tall, featuring an ejecting bed function and Gary’s bowl. Squidward’s house is also present, equipped with a music stand and art studio for creative moments. Guests can enjoy the spinning merry-go-round and a moving seesaw, expanding the interactive possibilities within this vibrant Bikini Bottom scene.

Parts Inventory

🧱 471 parts

Showing the first 12 rows of the parts list (471 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Yellow	1×	Check price → View
Light Bluish Gray	3×	Check price → View
Lime	1×	€0,08 View at LEGO → View
Orange	2×	Check price → View
Dark Brown	2×	€0,12 View at LEGO → View
Yellow	2×	€0,11 View at LEGO → View
Light Bluish Gray	1×	Check price → View
Orange	8×	Check price → View
Reddish Brown	2×	€0,27 View at LEGO → View
Light Bluish Gray	1×	€0,27 View at LEGO → View
Dark Gray	4×	Check price → View
Blue	6×	€0,07 View at LEGO → View

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Catalog rarity

How common are the parts in Bikini Bottom Undersea Party?

3%Low rarity

more commonless common

5 of 169 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

5.7%

All sets

6.7%

Least common in our catalog

Sticker Sheet for Set 3818-1 · Unknown · only this set in our catalogPanel 1 x 2 x 2 · Trans-Clear · only this set in our catalogBrick Round 2 x 2 Dome Top, Blocked Open… · Dark Green · 2 sets in our catalog

How we calculate this →