LEGO Set

Flatiron Building

21023-1

Released: 2015 · Parts: 471 · Theme: Architecture

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. Collectors browsing Architecture sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 52 unique part types.

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Buying checklist

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Release year

2015 (11 years ago — may be retired)
Catalog scale

471 parts listed · 52 inventory lines tracked
Minifigures

No minifigs in inventory (brick-only or Technic set)
Build manual

Digital booklet available on this page — use it to verify bag contents
Shipping weight (est.)

~691 g for parts inventory (excludes box/minifig packaging)
Before you buy used

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Market value

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