LEGO Building Set 510-3
LEGO Building Set (510-3) is worth about $175 on the secondary market today. It has 17 pieces, belongs to the Duplo theme and was released in 1969. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 510-3
- Theme
- Duplo
- Subtheme
- Basic Set
- Year
- 1969
- Pieces
- 17
- Minifigures
- 0
- Market value
- $175
- Used value
- $7
- Retirement
- Retired
Building Set value by year
From $1 in 1969 to $175 in 2026 so far: +15119%. Its highest year was 2026, at $175.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $175 | +15119.1% |
| 1969 | $1 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Building Set (510-3) worth?
LEGO Building Set is worth approximately $175 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Building Set retired?
Yes — Building Set (510-3) 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.
Why is LEGO Building Set so expensive?
Building Set was released in 1969 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.