LEGO Curved Rails 4520-1
LEGO Curved Rails (4520-1) is estimated at about $42 sealed as of Oct 2026 (retail $13). Retired · 8 pieces · 1991 Trains. Track its value and price history.
- Set number
- 4520-1
- Theme
- Trains
- Subtheme
- 9V
- Year
- 1991
- Pieces
- 8
- Minifigures
- 0
- RRP
- $13
- Market value
- $42 (Estimate, Oct 2026)
- Used value
- $3
- Released
- 1991
- Retirement
- Retired
Curved Rails value by year
From $18 in 2016 to $42 (Estimate, Oct 2026): +137%. Its highest year was 2026, at $20.
| Year | Value | Change |
|---|---|---|
| Estimate, Oct 2026 | $42 | +130.5% |
| 2026 (so far) | $20 | +8.9% |
| 2025 | $18 | +7.2% |
| 2024 | $17 | +2.0% |
| 2023 | $17 | +10.4% |
| 2022 | $15 | −23.4% |
| 2021 | $20 | +7.4% |
| 2020 | $18 | −5.7% |
| 2019 | $19 | +4.0% |
| 2018 | $19 | −5.6% |
| 2017 | $20 | +12.0% |
| 2016 | $18 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Curved Rails (4520-1) worth?
LEGO Curved Rails is worth approximately $42 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Curved Rails retired?
Yes — Curved Rails (4520-1) 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 Curved Rails gone up in value?
Yes. Curved Rails launched at $13 and now trades around $42, an increase of 223.2%. See the price history chart for how it got there.
What is the price per piece for Curved Rails?
At its $13 retail price across 8 pieces, Curved Rails works out to about $1.624 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Curved Rails a good investment?
Curved Rails currently trades 223.2% above its $13 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 Curved Rails so expensive?
Curved Rails was released in 1991 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.