How long does it take to build the LEGO Diagon Alley?
The LEGO Diagon Alley (5,548-piece set) takes an estimated 15 to 20 hours to build for an average adult builder.
Estimate · based on piece count & typical adult build pace
Time your own Diagon Alley build and see how your hours compare to other builders.
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- Pieces
- 5,548
- Set number
- 75978-1
- Year
- 2020
- Status
- active
What affects your build time
This is a large display set. Big builds often move faster per piece (~330/hour) thanks to repetitive techniques, but the sheer part count still makes it a multi-session project.
Your real time depends on experience, how often you pause, and whether you sort pieces first. The SetSquad app times your build bag-by-bag so you can see exactly where the hours go, and how you compare to other builders.
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How we calculate build times
We estimate build time as piece count divided by a typical adult build pace, around 300 pieces per hour for standard sets, faster for large display sets, and slower (~170/hour) for Technic. Estimates are clearly labelled and are replaced per-set with the real median build time once enough builders have logged their times in the SetSquad app.
Frequently asked
How long does it take to build the LEGO Diagon Alley?
The LEGO Diagon Alley (5,548-piece set) takes an estimated 15 to 20 hours to build for an average adult builder.
How many pieces does the LEGO Diagon Alley (75978-1) have?
The LEGO Diagon Alley has 5,548 pieces.
Are SetSquad build times estimates or real data?
This figure is currently an estimate based on piece count and typical adult build pace (about 330 pieces per hour for this set). As builders log their times in the SetSquad app, it will be replaced with the real median build time.
Popular build times
Read next
- How long do LEGO Harry Potter sets take?Hogwarts Castle to Fawkes, and the modular sets that split into sessions.
- How long do large LEGO sets take?The 10 to 40 hour tier, and why big sets are faster per piece.
- How long does it take to build a LEGO set?The full guide to build times by piece count, and how we measure them.
Compare SetSquad
- SetSquad vs other LEGO appsAll the comparisons in one place, and the one thing only SetSquad does.
- SetSquad vs BricksetThe set database everyone starts with, and what it does not do.
- SetSquad vs RebrickableDeep on parts and custom builds; different job from tracking your own builds.
- SetSquad vs BrickEconomyBuilt around what a collection is worth rather than how long it takes.
Time your own build
Track the LEGO Diagon Alley bag-by-bag, beat your personal best, and see how you rank on the global leaderboard, free with SetSquad.
Time your own build and see how your hours compare to other builders.
Free download · No account required to start