If your kids' old LEGO includes Harry Potter, that's a good find — it's one of the most collected and valuable themes around, with strong demand from grown-up fans as well as children. Here's what makes it worth money and how to sell it.
Why Harry Potter LEGO holds its value
The films and books have a huge, lasting fanbase, and LEGO regularly retires Harry Potter sets — meaning once they leave the shops, demand outstrips supply and prices often rise. That makes even used Harry Potter sets worth more than many other themes.
What's worth the most
- Hogwarts Castle, Hogwarts Express and Diagon Alley — the big, recognisable builds hold value especially well.
- Retired sets no longer sold in shops.
- Sealed sets — the top of the tree.
- Minifigures — characters like Dumbledore, Voldemort, and the main trio in older versions can be sought after.
Dig out every minifigure before selling — with Harry Potter, the figures often carry a big chunk of the value.
Used and incomplete is fine
You don't need boxes, instructions, or complete sets. Loose Harry Potter bricks go in by weight; complete and sealed sets are valued individually on top. Incomplete is welcome.
How to sell it
- List the sets you recognise and round up the minifigures; give a rough weight for loose bricks. Get a price for your Harry Potter LEGO →
- Box it up, protecting any sealed sets.
- Send it free and get paid, usually next day.