LEGO Big Royal Castle 10577-1
LEGO Big Royal Castle (10577-1) is estimated at about $267 sealed as of Sep 2026 (retail $60). Retired 2016 · 135 pieces · 2014 Duplo.
- Set number
- 10577-1
- Theme
- Duplo
- Year
- 2014
- Pieces
- 135
- Minifigures
- 4
- RRP
- $60
- Market value
- $267 (Estimate, Sep 2026)
- Used value
- $59
- Released
- 2014
- Retirement
- Retired in 2016
Minifigures in LEGO Big Royal Castle
- LEGO Duplo Figure Lego Ville, Male Castle, Dark Bluish Gray Legs, Blue and Yellow Chest with Crowned Eagle, Helmet
- LEGO Duplo Figure Lego Ville, Male Castle, Dark Bluish Gray Legs, Red and White Chest with Lion on Shield, Bright Light Yellow Hair, Blue Eyes
- LEGO Duplo Figure Lego Ville, Male Castle, Dark Bluish Gray Legs, Red and White Chest with Lion on Shield, Helmet
Big Royal Castle value by year
From $63 in 2016 to $267 (Estimate, Sep 2026): +327%. Its highest year was 2022, at $231.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $267 | +45.3% |
| 2026 (so far) | $188 | +2.3% |
| 2025 | $184 | −19.0% |
| 2024 | $227 | +5.7% |
| 2023 | $215 | −7.0% |
| 2022 | $231 | +44.4% |
| 2021 | $160 | +5.6% |
| 2020 | $151 | +19.8% |
| 2019 | $126 | +56.7% |
| 2018 | $81 | +16.0% |
| 2017 | $70 | +11.0% |
| 2016 | $63 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 3 priced minifigures are worth about $12 together, roughly 5% of the set's value — low for Duplo sets, so the value is in the sealed set rather than the figures (typically 10%).
Frequently asked questions
How much is LEGO Big Royal Castle (10577-1) worth?
LEGO Big Royal Castle is worth approximately $267 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Big Royal Castle retired?
Yes — Big Royal Castle (10577-1) 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 Big Royal Castle gone up in value?
Yes. Big Royal Castle launched at $60 and now trades around $267, an increase of 345.7%. See the price history chart for how it got there.
What is the price per piece for Big Royal Castle?
At its $60 retail price across 135 pieces, Big Royal Castle works out to about $0.444 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Big Royal Castle a good investment?
Big Royal Castle currently trades 345.7% above its $60 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 Big Royal Castle so expensive?
Big Royal Castle was released in 2014 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.