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All LEGO Ideas and CUUSOO sets

94 setsfrom 2011 to 2026

LEGO set representative of the theme LEGO Ideas and CUUSOO

The LEGO Ideas and CUUSOO theme brings together 94 sets released from 2011 to 2026, from submarines and cars to trains and gardens. Each set has 1,279 pieces on average, and 2025 lines up 14 of them, with models ranging from 154 to 4,090 pieces.

From 2011 to 2026: a catalog that grows year after year

The theme starts in 2011 with a single set, 21100 Shinkai 6500 Submarine, a submarine of 413 pieces. 2012 brings 2 sets, including 21102 Micro World (479 pieces) and 21101 Hayabusa (369 pieces), then 2013 goes back to 1 set with 21103 The DeLorean Time Machine (401 pieces).

The pace then picks up: 4 sets in 2014, 2015 and 2016, 6 in 2019 and 2020, 8 in 2021, 9 in 2022. 2025 is the busiest year with 14 sets, and 2026 has 10.

Models from 154 to 4,090 pieces

The largest set is 21356 River Steamboat, released in 2025 with 4,090 pieces. It comes ahead of 21330 Home Alone (3,955 pieces, 2021) and 21353 The Botanical Garden (3,792 pieces, 2024).

At the other end, 40335 Space Rocket Ride (2019) has only 154 pieces, followed by 21110 Research Institute (2014, 164 pieces) and 40773 The Goonies: The Walshes' Attic (2025, 179 pieces). A set in the theme has 1,279 pieces on average.

Varied licenses and a palette dominated by black

The theme draws on film, television and games: 21108 Ghostbusters Ecto-1, 21303 WALL•E [Original Version], 21304 Doctor Who, 21311 Voltron, 21319 Central Perk, 21341 Hocus Pocus. It also offers buildings and objects, such as 21310 Old Fishing Store, 21318 Tree House or 21332 The Globe.

As for colors, Black makes up 17% of the pieces, ahead of White (12%), Light Bluish Gray (10%) and Reddish Brown (10%). The 2026 sets carry on this variety with 21365 Love Birds, 21367 Tintin Moon Rocket, 21370 E.T. the Extra-Terrestrial and 21376 Orange Cat.

Ideas and CUUSOO in figures

Number of sets94
Release years2011-2026
Peak year2025 (14 sets)
Total pieces120,218
Average pieces per set1,279
Catalog-wide average389
Largest set21356 River Steamboat (4,090 pieces)
Smallest set40335 Space Rocket Ride (154 pieces)
Newest set21365 Love Birds (2026)

Ideas and CUUSOO sets by period

PeriodSetsAverage pieces
2011-20148369
2015-201921965
2020-2024411,626
2025-2026241,265

Dominant colors

Color breakdown of the pieces across all Ideas and CUUSOO sets, minifigures included.

ColorPiecesShare
Black19,84717%
White14,47812%
Light Bluish Gray12,53910%
Reddish Brown12,53810%
Dark Bluish Gray7,6316.4%
Tan7,0515.9%
Red5,6024.7%
Medium Nougat4,3313.6%

2026202520242023202220212020201920182017201620152014201320122011

2026 10 sets

2025 14 sets

2024 10 sets

2023 8 sets

2022 9 sets

2021 8 sets

2020 6 sets

2019 6 sets

2018 4 sets

2017 3 sets

2016 4 sets

2015 4 sets

2014 4 sets

2013 1 set

2012 2 sets

2011 1 set

Frequently asked questions

What kinds of models can be found in the LEGO Ideas and CUUSOO theme?

It includes vehicles such as 21103 The DeLorean Time Machine and 21108 Ghostbusters Ecto-1, buildings such as 21310 Old Fishing Store and 21319 Central Perk, instruments such as 21323 Grand Piano, and scenes from films or series such as 21330 Home Alone or 21369 The X-Files. The 2026 sets add animals, with 21366 Floating Sea Otters and 21376 Orange Cat.

How has the theme evolved since 2011?

It has gone from a single set in 2011, 21100 Shinkai 6500 Submarine with 413 pieces, to 14 sets in 2025 and 10 in 2026. The models have grown too: 21330 Home Alone reaches 3,955 pieces in 2021, against 479 pieces for the largest set of 2012.

Which colors dominate the pieces in the sets?

Black comes first with 17% of the pieces, followed by White with 12%. Next come Light Bluish Gray and Reddish Brown at 10% each, then Dark Bluish Gray and Tan at 6% each.

What sets the LEGO Ideas and CUUSOO theme apart from other themes?

Its sets are based on fan projects, which explains the variety of subjects, from a submarine to a grand piano to an orange cat. The theme also covers very different sizes, from 154 to 4,090 pieces.

What is the largest LEGO Ideas and CUUSOO set?

It is 21356 River Steamboat (2025): 4,090 pieces.

Which year has the most Ideas and CUUSOO sets?

In 2025: 14 sets, more than any other year.