# LEGO 21023-1 — Flatiron Building (2015)

Source: https://www.brickmissing.com/sets/21023-1-flatiron-building
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

Recreate the iconic Flatiron Building, New York’s most striking early skyscraper, with LEGO bricks. This detailed model (21023-1) captures the historic landmark that rises from a unique triangular plot between Broadway, Fifth Avenue, and East 22nd Street. Originally known as the ‘Fuller Building’, it reached 20 stories upon its 1902 completion, with an extra story added later by a penthouse. The building's distinctive limestone façade and elegant Beaux-Arts styling, a masterpiece by architect Daniel Burnham, are faithfully rendered. A recognized National Historic Landmark, its local nickname, 'Flatiron Building', was officially adopted, cementing its place in architectural history.

## Set facts

- Set number: 21023-1
- Name: Flatiron Building
- Theme: Architecture › Landmark Series
- Released: 2015
- Pieces: 471
- Distinct part + colour lots: 52
- Build difficulty: easy
- Repairability: 1.9% of this set's lots are hard to replace (1 of 52 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (52 lots, 471 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 12 | Bracket 1 x 2 - 1 x 4 [Rounded Corners] | Light Bluish Gray | 10201 | 6014615 | — |
| 4 | Brick Special 1 x 2 with 2 Studs on 1 Side | Tan | 11211 | 6024495 | €0,13 |
| 12 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Tan | 11477 | 6046922 | €0,06 |
| 16 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Dark Tan | 11477 | 6101254 | €0,06 |
| 20 | Slope Curved 2 x 2 x 2/3 | Tan | 15068 | 6046924 | €0,13 |
| 8 | Brick 2 x 2 Corner | Tan | 2357 | 4124455 | €0,16 |
| 45 | Tile Special 1 x 2 Grille with Bottom Groove | Tan | 2412b | 4124456 | €0,06 |
| 18 | Brick 1 x 2 | Tan | 3004 | 4109995 | €0,11 |
| 1 | Brick 1 x 2 | Light Bluish Gray | 3004 | 4211388 | €0,11 |
| 5 | Brick 1 x 1 | Tan | 3005 | 4113915 | €0,07 |
| 5 | Brick 1 x 1 | Light Bluish Gray | 3005 | 4211389 | €0,07 |
| 4 | Brick 1 x 6 | Tan | 3009 | 4112982 | €0,25 |
| 21 | Plate 1 x 2 | Tan | 3023 | 4113917 | €0,08 |
| 9 | Plate 1 x 2 | Trans-Brown | 3023 | 6514006 | €0,10 |
| 10 | Plate 1 x 2 | Dark Tan | 3023 | 4528604 | €0,08 |
| 3 | Plate 1 x 1 | Tan | 3024 | 4159553 | €0,06 |
| 2 | Plate 1 x 1 | Light Bluish Gray | 3024 | 4211399 | €0,06 |
| 26 | Plate 1 x 1 | Dark Tan | 3024 | 4549436 | €0,06 |
| 10 | Plate 4 x 8 | Light Bluish Gray | 3035 | 4211407 | €0,46 |
| 2 | Plate 6 x 8 | Light Bluish Gray | 3036 | 4211408 | €0,71 |
| 4 | Tile 2 x 2 with Groove | Dark Bluish Gray | 3068b | 4211055 | €0,07 |
| 27 | Tile 1 x 2 with Groove | Dark Tan | 3069b | 4496699 | €0,07 |
| 27 | Tile 1 x 2 with Groove | Trans-Brown | 3069b | 6514222 | €0,07 |
| 20 | Tile 1 x 2 with Groove | Tan | 3069b | 4114026 | €0,07 |
| 12 | Tile 1 x 1 with Groove | Dark Tan | 3070b | 6055172 | €0,05 |
| 18 | Tile 1 x 1 with Groove | Trans-Brown | 3070b | 4177048 | — |
| 21 | Tile 1 x 1 with Groove | Tan | 3070b | 4125253 | €0,05 |
| 1 | Tile 1 x 1 with Groove | Light Bluish Gray | 3070b | 4211415 | €0,05 |
| 3 | Plate 1 x 8 | Light Bluish Gray | 3460 | 4211425 | €0,18 |
| 6 | Brick 1 x 3 | Tan | 3622 | 4162465 | €0,15 |
| 4 | Plate 1 x 3 | Light Bluish Gray | 3623 | 4211429 | €0,07 |
| 10 | Plate 1 x 3 | Tan | 3623 | 4121921 | €0,07 |
| 3 | Plate 1 x 6 | Tan | 3666 | 4124067 | €0,17 |
| 4 | Plate 1 x 4 | Tan | 3710 | 4113233 | €0,12 |
| 18 | Plate 1 x 4 | Dark Tan | 3710 | 4626904 | €0,12 |
| 9 | Plate 1 x 4 | Light Bluish Gray | 3710 | 4211445 | €0,12 |
| 1 | Hinge Brick 1 x 4 [Upper] | Light Bluish Gray | 3830 | 6327412 | €0,27 |
| 1 | Hinge Brick 1 x 4 [Lower] | Light Bluish Gray | 3831 | 4211461 | €0,15 |
| 4 | Plate 2 x 10 | Black | 3832 | 383226 | €0,29 |
| 2 | Brick Special 1 x 1 with Headlight | Light Bluish Gray | 4070 | 4211476 | €0,07 |
| 3 | Tile 1 x 8 with Groove | Black | 4162 | 416226 | €0,15 |
| 1 | Tile 1 x 8 with 'Flatiron Building' Print | Black | 4162pr0037 | 6101020 | — |
| 9 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Tan | 54200 | 4516055 | €0,06 |
| 4 | Slope 65° 2 x 1 x 2 | Light Bluish Gray | 60481 | 4515374 | €0,12 |
| 2 | Plate Round 1 x 1 with Solid Stud | Tan | 6141 | 4161734 | €0,05 |
| 2 | Tile 1 x 3 | Dark Bluish Gray | 63864 | 4568734 | €0,11 |
| 2 | Tile 1 x 6 with Groove | Black | 6636 | 663626 | €0,13 |
| 2 | Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] | Light Bluish Gray | 73983 | 4219256 | — |
| 8 | Tile 2 x 4 with Groove | Dark Bluish Gray | 87079 | 4560184 | €0,16 |
| 7 | Brick Special 1 x 1 with Stud on 1 Side | Light Bluish Gray | 87087 | 4558953 | €0,11 |
| 2 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Light Bluish Gray | 87580 | 6126082 | €0,07 |
| 1 | Brick and Axle Separator v2.0 | Orange | 96874 | 4654448 | — |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/21023-1-flatiron-building
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/21023-1-flatiron-building