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•Easy

Hogwarts Classroom (4721-1) is a LEGO Harry Potter from 2001. This page uses the available set and theme data until a fuller product description is available.

Parts Inventory

🧱 76 parts

Part	Color	Qty
Window 1 x 4 x 5 with Hollow Studs 2493b	Medium Orange	1×
Window 1 x 4 x 5 with Hollow Studs 2493b	Light Violet	1×
Glass for Window 1 x 4 x 5 2494	Trans-Clear	1×
Glass for Window 1 x 4 x 5 with Classroom Blackboard Print 2494pr0004	Black	1×
Brick 2 x 2 3003	Light Violet	1×
Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top 30046	Black	1×
Brick 1 x 1 3005	Trans-Purple	2×
Brick Special 1 x 2 Palisade [aka Log] 30136	White	2×
Rock 1 x 1 Jewel / Gem 24 Facet 30153	Trans-Dark Pink	1×
Rock 1 x 1 Jewel / Gem 24 Facet 30153	Trans-Dark Blue	1×

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Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top	30046	Black	1×
Brick 1 x 1	3005	Trans-Purple	2×
Brick Special 1 x 2 Palisade [aka Log]	30136	White	2×
Rock 1 x 1 Jewel / Gem 24 Facet	30153	Trans-Dark Pink	1×
Rock 1 x 1 Jewel / Gem 24 Facet	30153	Trans-Dark Blue	1×
Plate 2 x 3	3021	Orange	1×
Plate 2 x 2	3022	Orange	3×
Insect, Spider	30238	Trans-Neon Green	1×
Plate 2 x 8	3034	Orange	1×
Bar 4L (Lightsaber Blade / Wand)	30374	Trans-Dark Pink	1×
Bar 4L (Lightsaber Blade / Wand)	30374	Brown	1×
Tile 1 x 2 with Gold Stars Print	3069bpr0118	Trans-Dark Blue	1×
Tile 1 x 2 with Spider and Bag Print	3069bpr0120	White	1×
Tile 1 x 1 with Groove	3070b	Yellow	1×
Book 2 x 3 with Red Bottles Print	33009pr0006	Light Bluish Gray	1×
Book 2 x 3 with Dragon and Spider Print	33009pr0009	Dark Gray	1×
Belville / Scala, Brick Round 1 x 1 x 2/3 Round	33286	Orange	2×
Plant, Flower, Plate Round 1 x 1 with 4 Petals	33291	Medium Dark Pink	3×
Animal, Frog	33320	Light Bluish Gray	1×
Plate 1 x 8	3460	Orange	1×
Plate 1 x 4	3710	Orange	1×
Hinge Brick 1 x 2 Base	3937	White	1×
Hinge Brick 1 x 2 Top Plate Thin	3938	White	1×
Animal, Bird, Owl Large, Rounded Features	40232	White	1×
Door 1 x 4 x 6 Round Top with Window and Keyhole, Non Reinforced Edge	40241	Violet	1×
Door Frame 1 x 8 x 6 with Moulded Stone Print and Clips	40242	Medium Orange	1×
Seat / Chair 2 x 2	4079	Medium Dark Pink	3×
Plate 8 x 8	41539	Light Violet	1×
Plate 8 x 8	41539	Violet	1×
Sticker Sheet for Set 4721-1	41606	Unknown	1×
Backdrop for Set 4721-1	4163003	Unknown	1×
Equipment Pot / Cauldron 3 x 3 x 1 & 3/4 with Handles	4341	Black	1×
Cupboard 2 x 3 x 2 with Solid Studs	4532	Medium Orange	1×
Cupboard 2 x 3 x 2 Door	4533	White	1×
Cone 1 x 1 [No Top Groove]	4589	Trans-Neon Orange	1×
Cone 1 x 1 [No Top Groove]	4589	Trans-Neon Green	1×
Panel 1 x 2 x 2 [Hollow Studs]	4864b	Trans-Clear	6×
Panel 1 x 2 x 1 [Square Corners]	4865a	Orange	3×
Wave / Flame Rounded with Base Pegs	6126a	Trans-Neon Green	2×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Neon Orange	4×
Brick 2 x 2 without Inside Ridges	6223	Trans-Dark Pink	3×
Equipment Key	62808	Chrome Antique Brass	2×
Tile 1 x 2 with Ball	70942	Chrome Gold	1×

Build DNA

Parts inventory insights for Hogwarts Classroom

76 pieces puts this build -88% against the average Harry Potter set and -65% against the average 2001 release.

LEGOHARRY POTTER

Vs average Harry Potter set

-88%-566 parts

This set76

Average set642

Average Harry Potter set: 642 pieces across 189 other sets.

Vs average 2001 set

-65%-143 parts

This set76

Average set219

Average 2001 set: 219 pieces across 145 other sets.

Color profile

20different colors

Dominant color

Orange

Orange12x

17%

Trans-Clear7x

10%

White7x

10%

Medium Dark Pink6x

Unique parts

1.7 pieces per unique type

Repeat factor

Average pieces per unique type.

Most used part

Panel 1 x 2 x 2 [Hollow Studs]

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩43unique parts🎨20different colors📊3.8avg. parts per color🏆6×Panel 1 x 2 x 2 [Hollow Studs]

🎨 All Harry Potter sets 📅 All sets from 2001

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