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% repair risk Easy

Hogwarts Classroom (4721-1) is a LEGO Harry Potter from 2001. The set contains 76 parts across 12 part and colour combinations in 9 colours — the full inventory below shows exactly which pieces you need to build or complete it.

Parts Inventory

🧱 76 parts

Part	Color	Qty	LEGO price each
Window 1 x 4 x 5 with Hollow Studs 2493b	Medium Orange	1×	Check price → View
Window 1 x 4 x 5 with Hollow Studs 2493b	Light Violet	1×	Check price → View
Glass for Window 1 x 4 x 5 2494	Trans-Clear	1×	Check price → View
Glass for Window 1 x 4 x 5 with Classroom Blackboard Print 2494pr0004	Black	1×	Check price → View
Brick 2 x 2 3003	Light Violet	1×	Check price → View
Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top 30046	Black	1×	€0,18 View at LEGO → View
Brick 1 x 1 3005	Trans-Purple	2×	Check price → View
Brick Special 1 x 2 Palisade [aka Log] 30136	White	2×	€0,10 View at LEGO → View
Rock 1 x 1 Jewel / Gem 24 Facet 30153	Trans-Dark Pink	1×	€0,10 View at LEGO → View
Rock 1 x 1 Jewel / Gem 24 Facet 30153	Trans-Dark Blue	1×	€0,10 View at LEGO → View
Plate 2 x 3 3021	Orange	1×	€0,13 View at LEGO → View
Plate 2 x 2 3022	Orange	3×	€0,10 View at LEGO → View