LEGO 404
Universal Building Set

LEGO 404 Universal Building Set box image
Set number
404
Theme
Universal Building Set
Pieces
472 pcs
Year
1977
Lowest new price¥61,000〜Used avg¥20,259as of 7/29
Used & parts
See price history & best time to buy

Prices may vary — please check each store. Links may include affiliate (advertising) links.

How many parts to go?
Can you build this from what you own?
Just pick the sets you own — see this set's completion rate and missing parts instantly.
① Tap the sets you own (pick a few)
② Or add by number (optional)

“Universal Building Set” is LEGO® “Universal Building Set” theme set number 404. Released in 1977, it has 472 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 121 types

Color split (most first)
Black×222
Yellow×142
Red×46
Light Gray×32
Trans-Clear×12
Blue×4
Green×1
White×1
Main parts (most used first)
273 Technic Link with Two Studs
Black · ×48
3004 Brick 1 x 2
Yellow · ×20
3009 Brick 1 x 6
Yellow · ×16
3037 Slope 45° 2 x 4
Black · ×16
3010 Brick 1 x 4
Yellow · ×14
3005 Brick 1 x 1
Yellow · ×12
3039 Slope 45° 2 x 2
Black · ×12
3004 Brick 1 x 2
Black · ×10
3005 Brick 1 x 1
Black · ×8
3660 Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]
Yellow · ×8
3008 Brick 1 x 8
Yellow · ×6
3008 Brick 1 x 8
Black · ×6
3009 Brick 1 x 6
Black · ×6
3010 Brick 1 x 4
Black · ×6
3081c01 Window 1 x 2 x 2 Classic, Short Lip [with Glass]
Red · ×6
3660 Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]
Black · ×6
585 Technic Bush Old Type 2
Red · ×6
3023 Plate 1 x 2
Black · ×5
242c01 Wheel Spoked with Stud
Red · ×4
3001a Brick 2 x 4 without Cross Supports
Yellow · ×4
3001a Brick 2 x 4 without Cross Supports
Black · ×4
3002a Brick 2 x 3 without Cross Supports
Black · ×4
3002a Brick 2 x 3 without Cross Supports
Yellow · ×4
3003a Brick 2 x 2 without Inside Ridges
Yellow · ×4

More “Universal Building Set” theme sets

Re:GO is an unofficial service and is not affiliated with the LEGO Group. LEGO® is a trademark of the LEGO Group. Data is based on Rebrickable and others.