Assembly Square (10255-1) is a Modular Buildings LEGO set released in 2017 with 4,002 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Modular Buildings sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 9 minifigures and 645 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Assembly Square
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Baby, White Body - Head with no neck×1 -
Chef, Red Neckerchief, Light Bluish Gray Legs×1 -
Ballerina×1 -
Barista, White Torso, Reddish Brown Apron, Sand Blue Legs, Dark Gray Side Shadows×1 -
Dentist×1 -
Medium Lavender Torso, Tan Legs, Dark Bluish Gray Hair×1 -
Bright Light Blue Torso, Jacket, Olive Green Legs, Dark Orange Hair×1 -
Red Torso Plaid, Dark Bluish Grey Legs, Reddish Brown Hair×1 -
Light Bluish Grey Torso, Dark Tan Legs, Mustache, Barrett×1
Parts in this set
645 parts · page 1 of 14 · updating…
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Animal, Bird, Parrot, Wide Beak and Tail with Marbled Blue Pattern27062pat0002 · ×1 · Yellow -
![Animal, Chicken [Plain]](https://cdn.rebrickable.com/media/parts/elements/4623934.jpg)
Animal, Chicken [Plain]95342 · ×1 · White -
Animal, Dog, Chihuahua with Basic Face Print12888pr0001 · ×1 · Medium Nougat -
![Arm Mechanical with Clip [Thick Support]](https://cdn.rebrickable.com/media/parts/elements/6006126.jpg)
Arm Mechanical with Clip [Thick Support]98313 · ×1 · White -
![Arm Skeleton [Bent / 2 Clips]](https://cdn.rebrickable.com/media/parts/elements/6132208.jpg)
Arm Skeleton [Bent / 2 Clips]93609 · ×2 · Black -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]](https://cdn.rebrickable.com/media/parts/elements/4289538.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]48729b · ×7 · Black -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]](https://cdn.rebrickable.com/media/parts/elements/4542590.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]48729b · ×4 · Light Bluish Gray -
Bar 2L with Towball22484 · ×2 · Trans-Bright Green -
Bar 2L with Towball22484 · ×3 · Dark Bluish Gray -
Bar 3L87994 · ×3 · Bright Green -
Bar 3L87994 · ×4 · Light Bluish Gray -
Bar 3L87994 · ×2 · Black -
Bar 4L (Lightsaber Blade / Wand)30374 · ×5 · Black -
Bar 4L (Lightsaber Blade / Wand)30374 · ×1 · Trans-Light Blue -
Bar 6L with Stop Ring63965 · ×1 · Black -
Bar 6L with Stop Ring63965 · ×1 · Pearl Gold -
Bar Holder with Clip11090 · ×8 · Yellow -
Bar Holder with Clip11090 · ×4 · Black -
Bar Holder with Hole and Bar Handle23443 · ×6 · Black -
Bar Holder with Hole and Bar Handle23443 · ×4 · Light Bluish Gray -
Bar, 4 Top Bars, Palm Tree Top2566 · ×2 · Tan -
Baseplate 16 x 323857 · ×1 · Green -
Baseplate 32 x 323811 · ×1 · Green -
![Box 2 x 2 x 2 [Hollow Studs]](https://cdn.rebrickable.com/media/parts/elements/4211491.jpg)
Box 2 x 2 x 2 [Hollow Studs]4345b · ×2 · Light Bluish Gray -
Box 2 x 2 x 2 Door with Slot4346 · ×2 · Trans-Clear -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×1 · White -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×1 · Light Bluish Gray -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×1 · Black -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×5 · Black -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×3 · Light Bluish Gray -
Bracket 2 x 2 - 2 x 23956 · ×1 · Light Bluish Gray -
Brick 1 x 13005 · ×18 · Light Bluish Gray -
Brick 1 x 13005 · ×2 · Green -
Brick 1 x 13005 · ×2 · Dark Blue -
Brick 1 x 13005 · ×6 · Dark Tan -
Brick 1 x 13005 · ×14 · Dark Bluish Gray -
Brick 1 x 13005 · ×12 · White -
Brick 1 x 13005 · ×36 · Sand Green -
Brick 1 x 13005 · ×4 · Trans-Clear -
Brick 1 x 13005 · ×3 · Black -
Brick 1 x 13005 · ×4 · Medium Blue -
Brick 1 x 13005 · ×11 · Tan -
Brick 1 x 13005 · ×22 · Sand Blue -
Brick 1 x 1 x 314716 · ×7 · Light Bluish Gray -
Brick 1 x 1 x 314716 · ×3 · Black -
Brick 1 x 1 x 5 with Solid Stud2453b · ×2 · Light Bluish Gray -
Brick 1 x 1 x 5 with Solid Stud2453b · ×4 · Black -
Brick 1 x 1 x 5 with Solid Stud2453b · ×2 · Tan