How many pieces does the LEGO Hogwarts Classroom (4721-1) have?

The LEGO Hogwarts Classroom set (4721-1) contains 76 pieces. It was released in 2001 as part of the LEGO Harry Potter theme.

How can I find missing parts for LEGO set 4721-1?

On BrickMissing you can check which parts from the LEGO Hogwarts Classroom (4721-1) you already own. Add your LEGO collection and we'll show exactly which of the 76 pieces you're missing and which you already have.

Can I build the LEGO Hogwarts Classroom with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 76 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Hogwarts Classroom from?

The LEGO Hogwarts Classroom (4721-1) belongs to the LEGO Harry Potter theme. You can browse all Harry Potter sets on BrickMissing to find more sets from this theme.

Hogwarts Classroom

4721-1 Harry Potter 2001 76 parts 31.2% catalog rarity Easy

Hogwarts Classroom (4721-1) is a LEGO set with a listed count of 76 parts. Available inventory data is shown below.

Parts Inventory

🧱 76 parts

Showing the first 12 rows of the parts list (76 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Medium Orange	1×	Check price → View
Light Violet	1×	Check price → View
Trans-Clear	1×	Check price → View
Black	1×	Check price → View
Light Violet	1×	Check price → View
Black	1×	€0,18 View at LEGO → View
Trans-Purple	2×	Check price → View
White	2×	€0,10 View at LEGO → View
Trans-Dark Pink	1×	€0,10 View at LEGO → View
Trans-Dark Blue	1×	€0,10 View at LEGO → View
Orange	1×	€0,13 View at LEGO → View
Orange	3×	€0,10 View at LEGO → View

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Catalog rarity

How common are the parts in Hogwarts Classroom?

31.2%Very high rarity

more commonless common

15 of 48 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

7.8%

All sets

6.7%

Least common in our catalog

Window 1 x 4 x 5 · Light Violet · only this set in our catalogBrick 2 x 2 · Light Violet · only this set in our catalogDoor 1 x 4 x 6 Round Top · Violet · only this set in our catalog

How we calculate this →