Flatiron Building (21023-1) is a Architecture LEGO set released in 2015 with 471 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 52 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Parts in this set
52 parts · page 1 of 2 · updating…
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![Bracket 1 x 2 - 1 x 4 [Rounded Corners]](https://cdn.rebrickable.com/media/parts/elements/6014615.jpg)
Bracket 1 x 2 - 1 x 4 [Rounded Corners]10201 · ×12 · Light Bluish Gray -
Brick 1 x 13005 · ×5 · Tan -
Brick 1 x 13005 · ×5 · Light Bluish Gray -
Brick 1 x 23004 · ×1 · Light Bluish Gray -
Brick 1 x 23004 · ×18 · Tan -
Brick 1 x 33622 · ×6 · Tan -
Brick 1 x 63009 · ×4 · Tan -
Brick 2 x 2 Corner2357 · ×8 · Tan -
Brick and Axle Separator v2.096874 · ×1 · Orange -
Brick Special 1 x 1 with Headlight4070 · ×2 · Light Bluish Gray -
Brick Special 1 x 1 with Stud on 1 Side87087 · ×7 · Light Bluish Gray -
Brick Special 1 x 2 with 2 Studs on 1 Side11211 · ×4 · Tan -
![Hinge Brick 1 x 4 [Lower]](https://cdn.rebrickable.com/media/parts/elements/4211461.jpg)
Hinge Brick 1 x 4 [Lower]3831 · ×1 · Light Bluish Gray -
![Hinge Brick 1 x 4 [Upper]](https://cdn.rebrickable.com/media/parts/elements/4211460.jpg)
Hinge Brick 1 x 4 [Upper]3830 · ×1 · Light Bluish Gray -
![Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]](https://cdn.rebrickable.com/media/parts/elements/4219256.jpg)
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]73983 · ×2 · Light Bluish Gray -
Plate 1 x 13024 · ×26 · Dark Tan -
Plate 1 x 13024 · ×2 · Light Bluish Gray -
Plate 1 x 13024 · ×3 · Tan -
Plate 1 x 23023 · ×9 · Trans-Brown -
Plate 1 x 23023 · ×21 · Tan -
Plate 1 x 23023 · ×10 · Dark Tan -
Plate 1 x 33623 · ×10 · Tan -
Plate 1 x 33623 · ×4 · Light Bluish Gray -
Plate 1 x 43710 · ×9 · Light Bluish Gray -
Plate 1 x 43710 · ×4 · Tan -
Plate 1 x 43710 · ×18 · Dark Tan -
Plate 1 x 63666 · ×3 · Tan -
Plate 1 x 83460 · ×3 · Light Bluish Gray -
Plate 2 x 103832 · ×4 · Black -
Plate 4 x 83035 · ×10 · Light Bluish Gray -
Plate 6 x 83036 · ×2 · Light Bluish Gray -
Plate Round 1 x 1 with Solid Stud6141 · ×2 · Tan -
Plate Special 2 x 2 with Groove and Center Stud (Jumper)87580 · ×2 · Light Bluish Gray -
Slope 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×9 · Tan -
Slope 65° 2 x 1 x 260481 · ×4 · Light Bluish Gray -
![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6101254.jpg)
Slope Curved 2 x 1 No Studs [1/2 Bow]11477 · ×16 · Dark Tan -
![Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6046922.jpg)
Slope Curved 2 x 1 No Studs [1/2 Bow]11477 · ×12 · Tan -
Slope Curved 2 x 2 x 2/315068 · ×20 · Tan -
Tile 1 x 1 with Groove3070b · ×21 · Tan -
Tile 1 x 1 with Groove3070b · ×1 · Light Bluish Gray -
Tile 1 x 1 with Groove3070b · ×12 · Dark Tan -
Tile 1 x 1 with Groove3070b · ×18 · Trans-Brown -
Tile 1 x 2 with Groove3069b · ×27 · Dark Tan -
Tile 1 x 2 with Groove3069b · ×27 · Trans-Brown -
Tile 1 x 2 with Groove3069b · ×20 · Tan -
Tile 1 x 363864 · ×2 · Dark Bluish Gray -
Tile 1 x 6 with Groove6636 · ×2 · Black -
Tile 1 x 8 with 'Flatiron Building' Print4162pr0037 · ×1 · Black