LEGO Flatiron Building 21023-1
LEGO Flatiron Building (21023-1) is worth about $126 sealed (retail $40). Retired 2016 · 471 pieces · 2015 Architecture. Track its value and price history.
Recreate the historic Flatiron Building skyscraper in LEGO® bricks!
- Set number
- 21023-1
- Theme
- Architecture
- Subtheme
- Landmark Series
- Year
- 2015
- Pieces
- 471
- Minifigures
- 0
- RRP
- $40
- Market value
- $126
- Used value
- $42
- Released
- 2015
- Retirement
- Retired in 2016
Flatiron Building value by year
From $43 in 2016 to $126 today: +192%. Its highest year was 2026, at $98.
| Year | Value | Change |
|---|---|---|
| Today | $126 | +40.1% |
| 2026 (so far) | $98 | +9.1% |
| 2025 | $90 | +0.8% |
| 2024 | $89 | +5.7% |
| 2023 | $84 | −1.9% |
| 2022 | $86 | +2.9% |
| 2021 | $83 | +22.0% |
| 2020 | $68 | +28.8% |
| 2019 | $53 | +30.5% |
| 2018 | $41 | +1.4% |
| 2017 | $40 | −6.9% |
| 2016 | $43 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Flatiron Building (21023-1) worth?
LEGO Flatiron Building is worth approximately $126 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Flatiron Building retired?
Yes — Flatiron Building (21023-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Flatiron Building gone up in value?
Yes. Flatiron Building launched at $40 and now trades around $126, an increase of 214.4%. See the price history chart for how it got there.
What is the price per piece for Flatiron Building?
At its $40 retail price across 471 pieces, Flatiron Building works out to about $0.085 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Flatiron Building a good investment?
Flatiron Building currently trades 214.4% above its $40 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Flatiron Building so expensive?
Flatiron Building was released in 2015 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.