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Cauldron: Secret Potions Classroom

Welcome to Potion Mastery

Behold the Cauldron: Secret Potions Classroom, a masterful build with 652 pieces, designed to impress at 5.5 inches (14.0 cm) deep and 7.5 inches (19.1 cm) wide. The exterior hints at rich magical lore, featuring the iconic Hogwarts crest integrated with precision. It’s a solid sub-assembly, ready to open and reveal its secrets.

Cracking the Cauldron

Turning the Cauldron reveals its hinged construction, splitting neatly to expose two distinct classroom segments. The detailing within uses clever SNOT techniques for shelving and potion bottle placement. Notice the bonus collectible portrait—a true NPU to enhance the set's charm.

The Cauldron Stands Tall

Here, the Cauldron stands ready, its exterior a testament to the robust black and dark grey plates forming its curved shape. The Hogwarts crest is a brilliant gold offset, applied with precision. Harry Potter and Hermione Granger stand ready, their wands poised for potion-making, or perhaps a duel.

Splitting the Classroom

The Cauldron swings open on robust hinges, revealing two compact, yet highly detailed, potion classrooms. Each side utilizes jumper plates to create staggered surfaces, optimizing space. The interior elements, like the blackboard and potion shelves, are secure sub-assemblies, providing stability for play.

Stirring the Pot

At the heart of the cauldron, the stirring mechanism is a subtle yet effective play feature. A long brick-built wand descends into a cluster of trans-purple elements, simulating a bubbling potion. This is a clever use of common bricks to convey a dynamic effect without complex Technic elements.

Ready for Lessons

With the Cauldron fully open, Harry, Hermione, and Professor Snape are ready for their lesson. The compact design allows for quick setup and play, with the interiors holding small potion desks and display elements. It’s a complete scene, ready for any magical scenario the builder envisions.

Characters and Concoctions

Here are our key players: Hermione Granger, Harry Potter, and Professor Snape, each meticulously detailed. Notice the trans-light blue otter Patronus, a brilliant NPU for a magical creature effect. The various potion vials and bubbling concoctions showcase a great array of trans-clear and specialized elements.

Patronus Power Displayed

Hermione Granger is shown here, wand in hand, conjuring her otter Patronus. The trans-light blue element for the Patronus is a simple yet incredibly effective design choice, capturing the ephemeral nature of the spell. It's a prime example of using color and transparency to convey magic.

Mastering the Details

Professor Snape stands within his designated classroom area, overseeing the potions. The blackboard, with its printed alchemy symbols, adds essential greebling to the wall. Small sub-assemblies for the potion stands and bottles demonstrate effective use of 1x1 round plates and tiles for small, intricate details.

Hands-On Enchantment

The open Cauldron becomes an interactive play space, perfect for young builders to immerse themselves. The modular nature of the interior means minifigures can easily be placed and moved. It’s designed for accessibility, allowing full engagement with every magical detail within the two classroom halves.

Immersive Potion Play

From this vantage, we see the full scope of the Cauldron's open form during play. Each classroom side offers distinct elements, encouraging imaginative role-play with Harry and Snape. The compact yet detailed interior is a testament to efficient brick geometry, maximizing play value within a clever form factor.

Displaying the Magic

When the lesson is over, the Cauldron closes cleanly, transforming into a striking display piece. Its dark, spherical form, adorned with the golden Hogwarts crest, ensures it holds a commanding presence on any shelf. This set is a thoughtful blend of playability and display aesthetic, proving that clever construction can create both an engaging build and a captivating showpiece.

Lego
$59.99
🔥 8 Exclusives! 💎 13 Rares!
Recommended Age: 10+ Years
More at LEGO

Value Projection

Harry Potter

5-Year Est. (Sealed) after EOL

$124 $147

Est. ROI

+125.2%

Analyst Note: Consistent performer with a dedicated fanbase, but high supply limits explosive growth.

More details with Brickonomics

THE BUILD SHEET

At a Glance

Set Number
76464
Release Year
2026
Pieces
652
Price per Piece
$0.09 (9¢)

Value Breakdown

Est. Build Time
2.7 Hours
Price / Build Hour
$22.08/hr
Specialty Part Value
Minifigures (2) $10.00
Specialty Total $10.00
Price Per Basic Brick
$0.08

Priced perfectly inline with standard LEGO sets.

The Lineup

A complete roster of the characters and minifigures included in this set.

Set 76464 comes with 2 standard figures:
Rare Minifigures 1
  • Professor Severus Snape (fig-015094) • Seen in 3 sets (76431, 76441, 76464)
Uncommon Minifigures 1
  • Hermione Granger (fig-014760) • Seen in 5 sets (76431, 76432, 76435, 76442, 76464)

Display Dimensions

Height 7.5 in (19.1 cm) 19 Bricks + 2 Plates high
Width 5.5 in (14.0 cm) 17 Studs wide
Depth 5 in (12.7 cm) 16 Studs deep
Display Footprint 27.5 sq in (177.4 sq cm) 17 × 16 Studs

The Scale Check

Height equivalent to approx 4.8 minifigures stacked.

Display Fit
Standard Shelf Friendly (Kallax/Billy)
Building Instructions

Download or view the official PDF

Engineering Breakdown

Part Categories

Discover the structural DNA and the exact piece types included in this box.

Standard 294 pcs (45.2%)
Slopes Wedges 125 pcs (19.2%)
Greebles 1x1 97 pcs (14.9%)
Technic 41 pcs (6.3%)
S N O T 35 pcs (5.4%)
Translucent 20 pcs (3.1%)
Equipment 20 pcs (3.1%)
Bricks Special 19 pcs (2.9%)

Rare & Exclusive Parts

Track this build's most elusive bricks and their production history.

Exclusive Parts 4
  • Blue Violet Tile Round 1 x 1 Half Circle (SKU: 24246)
  • Trans-Clear Minifig Head with Lime/Sand Blue Dragon Flies, Tan Label print (SKU: 28621pr0044)
  • Blue Violet Technic Ball Joint (SKU: 32474)
  • Black Tile Round 6 x 6 with Gold Hogwarts Symbol print (SKU: 7212pr0005)
Rare Parts 5
  • Blue Violet Plate Special Round 2 x 2 with Center Stud (Jumper Plate) (SKU: 18674) • Seen in 2 sets (76464, 76466)
  • Opal Trans-Purple Smoke / Bubbles with Anti-Stud (SKU: 5533) • Seen in 2 sets (76464, 9781837251735)
  • Opal Trans-Light Blue Animal, Otter [Plain] (SKU: 67631) • Seen in 2 sets (75966, 76464)
  • Black Brick Round Corner 5 x 5 Macaroni with 1/3 Inner Side (SKU: 5532) • Seen in 3 sets (4002024, 31172, 76464)
  • Dark Purple Brick Curved 1 x 2 x 1 with Curved Top (SKU: 5841) • Seen in 3 sets (77075, 43025, 76464)
Uncommon Parts 3
  • Black Glass For Frame 1 x 3 x 3 (SKU: 51266) • Seen in 4 sets (76428, 42654, 5010092, 76464)
  • Dark Purple Tile 3 x 3 Curved, Macaroni (SKU: 79393) • Seen in 4 sets (42605, 71478, 75392, 76464)
  • Black Dish 8 x 8 Inverted [Radar], Solid Studs, Squared Anti-stud Underside (SKU: 3961a) • Seen in 5 sets (31126, 40562, 40591, 4002024, 76464)

Color Insights & Harmony

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Included Palette

The complete chromatic blueprint and exact piece counts defining this set's look.

241 pcs (37.0%) Black

113 pcs (17.4%) Dark Bluish Gray

110 pcs (16.9%) Reddish Brown

64 pcs (9.8%) Light Bluish Gray

43 pcs (6.6%) Dark Tan

18 pcs (2.8%) Dark Purple

10 pcs (1.5%) Pearl Gold

9 pcs (1.4%) Blue Violet

7 pcs (1.1%) Red

4 pcs (0.6%) Lavender

4 pcs (0.6%) Trans-Clear

4 pcs (0.6%) Tan

4 pcs (0.6%) Trans-Purple

3 pcs (0.5%) Blue

3 pcs (0.5%) Trans-Green

2 pcs (0.3%) Yellow

2 pcs (0.3%) Trans-Dark Blue

2 pcs (0.3%) Trans-Yellow

1 pcs (0.2%) Green

1 pcs (0.2%) Flat Silver

1 pcs (0.2%) Bright Light Orange

1 pcs (0.2%) Trans-Bright Green

1 pcs (0.2%) Opal Trans-Purple

1 pcs (0.2%) Opal Trans-Light Blue

1 pcs (0.2%) Bright Green

1 pcs (0.2%) Dark Turquoise

The Mix

A proportional breakdown of the defining colors shaping this set's aesthetic. Hover to inspect.

26 Colors

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