How many pieces are in the Mystery Mansion?

Mystery Mansion contains 861 pieces.

When was the Mystery Mansion released?

Mystery Mansion was released in 2015.

🏛 Scooby-Doo

Set #75904

Mystery Mansion

The Mystery Mansion is a standout set in the Scooby-Doo theme.

Before you buy

Who it's for: Intermediate build Perfect for Scooby-Doo fans and LEGO enthusiasts who enjoy play features and character-driven builds
Build: 861 pieces · about 4.5 hours Build time is an estimate.
Price: $89.99 list price · 10.5¢ per piece
Availability: Likely retired

★★★★☆ 4.6 AI-generated review score, not a customer rating

Fans praise the Mystery Mansion for its authentic details, fun play features, and complete set of minifigures. Some criticize the repetitive nature of certain building sections and the high price on the secondary market.

$89.99

Best Price

$80.99

You Save

10% OFF

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Mystery Mansion is a standout set in the Scooby-Doo theme. It perfectly captures the spooky, whimsical vibe of the cartoon, packed with clever details and fun play features. It's a delightful blend of building and imaginative play.

This set is perfect for Scooby-Doo fans of all ages and LEGO collectors who appreciate unique themes. The build is engaging and rewarding, with plenty of hidden surprises and interactive elements. The inclusion of all the core gang members, plus multiple villains, makes it highly desirable.

Skip this if you're strictly looking for complex building techniques or large-scale display models. While charming, the Mystery Mansion prioritizes playability and character interaction over intricate architectural details. Consider the Haunted House from the Monster Fighters theme for a more challenging build.

✨ New

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🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

861

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

Build Highlights:

Intricate details that capture the spooky atmosphere of the Mystery Mansion
Hidden traps and secret passages that enhance playability
Use of reddish-brown 'log' bricks to create a dilapidated, haunted feel
Inclusion of seven minifigures, allowing for extensive role-playing scenarios

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

↑ Trending up since release

A-

Investment Grade

⏳ Retired

The Mystery Mansion (75904-1) presents a solid investment opportunity due to its popular licensed theme, retired status, and unique minifigure selection. Scooby-Doo has enduring appeal across generations, driving demand for related merchandise. The set's relatively high piece count (861) and the inclusion of all five members of Mystery Inc., along with multiple villains, enhance its collectibility. The price has been steadily rising since retirement, indicating strong market interest. While licensed themes can be subject to fluctuations based on franchise popularity, Scooby-Doo's consistent presence in pop culture mitigates this risk. However, the current price is already quite high, so potential investors should be aware of the entry cost.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Creator Expert • 3,231 pcs

$249.99

The Mystery Mansion stands out in the Scooby-Doo theme due to its size and comprehensive character selection. Compared to smaller sets like the Mummy Museum Mystery (75900-1), it offers a more complete play experience. While the Haunted House (10273-1) from the Creator Expert line is a larger and more complex build, the Mystery Mansion provides a more direct connection to the Scooby-Doo universe and a more accessible building experience for younger fans. Consider the Mystery Mansion if you prioritize character interaction and theme accuracy.

7 Minifigures Included

Black Knight / Mr. Wickles

Ghost / Bluestone the Great

The inclusion of the entire Mystery Inc. gang (Shaggy, Scooby-Doo, Daphne, Velma) along with three villains makes this set highly desirable for minifigure collectors. The Black Knight/Mr. Wickles and Vampire/Bob Oakley are exclusive to this set, adding to their collectibility.

📦 Parts Inventory

Piece count: 861
Parts cataloged in this inventory: 187 unique parts, 831 pieces
Minifigures: 7

The piece count includes the 30 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Coffin 2 x 4 x 6 ...

Part #: 10304pr0002 1× Black

Equipment Magnify...

Part #: 10830pat0001 1× Black

Plate Round 6 x 6...

Part #: 11213 1× White

Plate Round 6 x 6...

Part #: 11213 1× Light Bluish Gray

Brick Curved 2 x ...

Part #: 11477 2× Green

Brick Arch 1 x 3 ...

Part #: 13965 4× Reddish Brown

Brick Arch 1 x 5 ...

Part #: 14395 2× Reddish Brown

Plate Special 1 x...

Part #: 14417 1× Dark Bluish Gray

Plate Special 1 x...

Part #: 14419 1× Dark Bluish Gray

Plate Special 1 x...

Part #: 14704 1× Light Bluish Gray

Brick Arch 1 x 12...

Part #: 14707 3× Reddish Brown

Brick 1 x 1 x 3

Part #: 14716 2× Light Bluish Gray

Tile Round 2 x 2 ...

Part #: 14769 4× White

Brick Curved 2 x ...

Part #: 15068 2× Black

Plate Special 1 x...

Part #: 15070 4× Yellow

Panel 1 x 4 x 1 w...

Part #: 15207 1× Dark Bluish Gray

Brick Arch 1 x 6 ...

Part #: 15254 2× Light Bluish Gray

Fence Spindled 1 ...

Part #: 15332 8× Black

Equipment Ball an...

Part #: 15532 1× Black

Tile Special Roun...

Part #: 15535 2× Dark Bluish Gray

Tile Special Roun...

Part #: 15535 1× Tan

Plate Special 1 x...

Part #: 15573 1× Medium Blue

Plate Special 1 x...

Part #: 15573 6× Dark Purple

Plate Special 1 x...

Part #: 15573 1× Orange

Wedge Plate 4 Stu...

Part #: 15706 8× Reddish Brown

Tile Special 1 x ...

Part #: 15712 1× Black

Brick Arch 1 x 8 ...

Part #: 16577 5× Dark Bluish Gray

Costume / Mask, P...

Part #: 20695pr0001 2× Orange

Sticker Sheet for...

Part #: 21436 1× [No Color/Any Color]

Plant, Leaves 6 x 5

Part #: 2417 1× Dark Green

Plate 2 x 2 Corner

Part #: 2420 1× Reddish Brown

Tile 1 x 4 with G...

Part #: 2431 2× Green

Tile 1 x 4 with G...

Part #: 2431 6× Reddish Brown

Plate 2 x 12

Part #: 2445 1× Reddish Brown

Plate 2 x 12

Part #: 2445 1× Black

Wedge Plate 3 x 3...

Part #: 2450 1× Black

Brick 1 x 1 x 5 w...

Part #: 2453b 3× Reddish Brown

Brick 1 x 1 x 5 w...

Part #: 2453b 2× Light Bluish Gray

Brick 2 x 6

Part #: 2456 2× Dark Bluish Gray

Minifig Neckwear ...

Part #: 2524 1× Reddish Brown

Plate Round 2 x 2...

Part #: 2654 2× Red

Plate Round 2 x 2...

Part #: 2654pr0002 1× Tan

Technic Pin with ...

Part #: 2780 19× Black

Plate Special 2 x...

Part #: 2817 4× Light Bluish Gray

Brick Special 2 x...

Part #: 30000 1× Light Bluish Gray

Brick 2 x 4

Part #: 3001 5× Light Bluish Gray

Brick 2 x 4

Part #: 3001 1× Dark Bluish Gray

Brick 2 x 3

Part #: 3002 1× Reddish Brown

Brick 2 x 2

Part #: 3003 1× White

Brick 2 x 2

Part #: 3003 8× Light Bluish Gray

Brick 1 x 2

Part #: 3004 1× Lime

Brick 1 x 2

Part #: 3004 2× Sand Green

Brick 1 x 2

Part #: 3004 3× White

Brick 1 x 1

Part #: 3005 2× Sand Green

Brick 1 x 1

Part #: 3005 30× Reddish Brown

Fence Spindled 4 ...

Part #: 30056 2× Black

Brick 1 x 8

Part #: 3008 1× Light Bluish Gray

Equipment Camera ...

Part #: 30089b 1× Black

Brick 1 x 6

Part #: 3009 10× Light Bluish Gray

Brick 1 x 6

Part #: 3009 2× Dark Bluish Gray

Plant, Sea Grass

Part #: 30093 1× Dark Green

Plant, Sea Grass

Part #: 30093 3× Bright Green

Brick 1 x 4

Part #: 3010 7× Light Bluish Gray

Animal, Bat

Part #: 30103 1× Black

Brick Special 1 x...

Part #: 30136 42× Light Bluish Gray

Brick Special 1 x...

Part #: 30136 9× Reddish Brown

Brick 2 x 2 x 3

Part #: 30145 4× Light Bluish Gray

Sarcophagus / Cof...

Part #: 30163 1× Black

Plant, Round 1 x ...

Part #: 30176 2× Green

Plate 2 x 4

Part #: 3020 1× Black

Plate 2 x 4

Part #: 3020 1× Light Bluish Gray

Plate 2 x 4

Part #: 3020 3× Reddish Brown

Plate 2 x 4

Part #: 3020 1× Lime

Plate 2 x 4

Part #: 3020 3× Dark Bluish Gray

Plate 2 x 3

Part #: 3021 2× Medium Azure

Plate 2 x 3

Part #: 3021 2× Reddish Brown

Plate 2 x 2

Part #: 3022 1× Yellow

Plate 2 x 2

Part #: 3022 2× Black

Plate 2 x 2

Part #: 3022 1× Red

Plate 1 x 2

Part #: 3023 1× Green

Plate 1 x 2

Part #: 3023 2× Dark Purple

Plate 1 x 2

Part #: 3023 3× Medium Blue

Plate 1 x 2

Part #: 3023 15× Black

Plate 1 x 2

Part #: 3023 1× Lime

Plate 1 x 2

Part #: 3023 3× Reddish Brown

Brick Special 1 x...

Part #: 30236 2× Dark Bluish Gray

Plate 4 x 10

Part #: 3030 4× Reddish Brown

Plate 4 x 4

Part #: 3031 1× Dark Bluish Gray

Plate 4 x 4

Part #: 3031 5× Reddish Brown

Plate 4 x 4

Part #: 3031 1× Dark Purple

Plate 4 x 6

Part #: 3032 1× Dark Bluish Gray

Plate 2 x 8

Part #: 3034 4× Reddish Brown

Plate 6 x 8

Part #: 3036 4× Reddish Brown

Brick Sloped 45° ...

Part #: 3039 5× Dark Bluish Gray

Brick Sloped 45° ...

Part #: 3039 1× Reddish Brown

Brick Sloped 45° ...

Part #: 3040b 2× Dark Green

Brick Sloped 45° ...

Part #: 3040b 25× Dark Purple

Brick Special 1 x...

Part #: 30414 1× Dark Bluish Gray

Plate Round Corne...

Part #: 30565 5× Reddish Brown

Brick Round 1 x 1...

Part #: 3062b 2× Reddish Brown

Tile 2 x 2 with G...

Part #: 3068b 3× White

Tile 2 x 2 with G...

Part #: 3068b 2× Reddish Brown

Tile 2 x 2 with M...

Part #: 3068bpr0271 1× White

Tile 1 x 2 with G...

Part #: 3069b 1× Reddish Brown

Tile 1 x 2 with G...

Part #: 3069b 6× Black

Tile 1 x 2 with G...

Part #: 3069b 3× Metallic Gold

Tile 1 x 2 with G...

Part #: 3069b 1× Dark Bluish Gray

Tile 1 x 2 with G...

Part #: 3069b 3× Green

Tile 1 x 1 with G...

Part #: 3070b 2× Dark Bluish Gray

Tile 1 x 1 with K...

Part #: 3070bpr0147 1× Light Bluish Gray

Technic Brick 1 x...

Part #: 32000 1× Tan

Plate Special 1 x...

Part #: 32028 5× Black

Technic Brick 1 x...

Part #: 32064a 1× Yellow

Technic Axle 5

Part #: 32073 1× Light Bluish Gray

Technic Bush 1/2 ...

Part #: 32123b 4× Yellow

Technic Gear 12 T...

Part #: 32270 1× Black

Brick 1 x 2 x 2 w...

Part #: 3245c 2× Light Bluish Gray

Technic Brick 4 x...

Part #: 32531 1× Light Bluish Gray

Food Hot Dog / Sa...

Part #: 33078 1× Red

Roof / Tower 6 x ...

Part #: 33215 1× Dark Purple

Technic Beam 3 x ...

Part #: 33299a 1× Light Bluish Gray

Plate 1 x 8

Part #: 3460 8× Black

Plate 1 x 8

Part #: 3460 3× White

Brick 1 x 3

Part #: 3622 22× Dark Bluish Gray

Plate 1 x 3

Part #: 3623 1× Black

Plate 1 x 3

Part #: 3623 1× Reddish Brown

Minifig Head [Pla...

Part #: 3626c 2× Trans-Neon Orange

Minifig Head Skel...

Part #: 3626cpr0895 1× White

Fence Lattice 1 x...

Part #: 3633 8× Black

Brick Sloped Inve...

Part #: 3665 6× Reddish Brown

Plate 1 x 6

Part #: 3666 2× Medium Azure

Plate 1 x 6

Part #: 3666 4× Black

Plate 1 x 6

Part #: 3666 2× Reddish Brown

Technic Pin witho...

Part #: 3673 1× Light Bluish Gray

Brick Sloped 33° ...

Part #: 3675 2× Dark Purple

Turntable 2 x 2 P...

Part #: 3679 1× Light Bluish Gray

Turntable 2 x 2 P...

Part #: 3680 1× Red

Technic Brick 1 x...

Part #: 3700 23× Dark Bluish Gray

Technic Axle 4

Part #: 3705 1× Black

Technic Axle 6

Part #: 3706 1× Black

Plate 1 x 4

Part #: 3710 1× Tan

Plate 1 x 4

Part #: 3710 3× Reddish Brown

Plate 1 x 4

Part #: 3710 5× Black

Plate 1 x 4

Part #: 3710 1× Green

Plate 1 x 4

Part #: 3710 2× Dark Bluish Gray

Plate 2 x 6

Part #: 3795 7× Reddish Brown

Plate 2 x 10

Part #: 3832 4× Dark Purple

Technic Brick 1 x...

Part #: 3894 8× Dark Bluish Gray

Hinge Brick 1 x 2...

Part #: 3937 1× Light Bluish Gray

Hinge Brick 1 x 2...

Part #: 3938 1× Black

Cone 2 x 2 x 2, O...

Part #: 3942c 2× Black

Plate 6 x 6

Part #: 3958 2× Reddish Brown

Animal, Rodent, R...

Part #: 40234 1× Light Bluish Gray

Brick Special 1 x...

Part #: 4070 2× Reddish Brown

Tile 1 x 8 with G...

Part #: 4162 1× Green

Technic Tooth 1 x...

Part #: 41669 1× Orange

Minifig Neckwear ...

Part #: 42446 1× Black

Wheel 11 x 8 with...

Part #: 42610 1× Light Bluish Gray

Technic Pin 1/2 w...

Part #: 4274 2× Blue

Brick Sloped 33° ...

Part #: 4286 2× Reddish Brown

Box 2 x 2 x 2 [Ho...

Part #: 4345b 1× White

Box 2 x 2 x 2 Doo...

Part #: 4346 1× White

Support Round 1 x...

Part #: 43888 6× Dark Bluish Gray

Dish 3 x 3 Invert...

Part #: 43898 1× Black

Brick Sloped 75° ...

Part #: 4460b 1× Reddish Brown

Plate 1 x 10

Part #: 4477 3× Reddish Brown

Technic Axle 3

Part #: 4519 1× Light Bluish Gray

Equipment Saucepan

Part #: 4529 1× Black

Cupboard 2 x 3 x ...

Part #: 4533 1× Sand Green

Cupboard 2 x 3 x ...

Part #: 4533 1× White

Tap 1 x 1 without...

Part #: 4599b 1× Light Bluish Gray

Dish 2 x 2 Invert...

Part #: 4740 1× Black

Plate Special 1 x...

Part #: 48336 2× Green

Panel 1 x 2 x 1 [...

Part #: 4865b 1× Trans-Clear

Vehicle Base, Mot...

Part #: 50859b 1× Flat Silver

Tyre 21 x 6 City ...

Part #: 50861 2× Black

Wheel Centre 15 x...

Part #: 50862 2× Light Bluish Gray

Wheel Arch, Mudgu...

Part #: 50947 1× Medium Azure

Animal Body Part,...

Part #: 53451 9× Black

Weapon Axe Head, ...

Part #: 53454 2× Pearl Titanium

Brick Sloped 30° ...

Part #: 54200 15× Dark Purple

Brick Sloped 30° ...

Part #: 54200 1× Reddish Brown

Brick Sloped 30° ...

Part #: 54200 2× Trans-Clear

Plant / Creature ...

Part #: 55236 2× Dark Green

Panel 1 x 6 x 5

Part #: 59349 4× Light Bluish Gray

Panel 1 x 6 x 5

Part #: 59349 1× Trans-Clear

Technic Axle Conn...

Part #: 59443 2× Dark Bluish Gray

Cone 1 x 1 [Top G...

Part #: 59900 1× Trans-Yellow

Cone 1 x 1 [Top G...

Part #: 59900 18× Black

Plate Special 1 x...

Part #: 60470b 2× Green

Plate Round 4 x 4...

Part #: 60474 1× Dark Brown

Brick Special 1 x...

Part #: 60475b 2× Light Bluish Gray

Brick Sloped 18° ...

Part #: 60477 2× Black

Brick Sloped 65° ...

Part #: 60481 6× Dark Purple

Panel 1 x 4 x 3 [...

Part #: 60581 1× Trans-Clear

Window 1 x 2 x 2 ...

Part #: 60592 6× Reddish Brown

Window 1 x 2 x 3 ...

Part #: 60593 13× Reddish Brown

Door Frame 1 x 4 ...

Part #: 60596 2× Black

Glass for Window ...

Part #: 60601 6× Trans-Clear

Glass for Window ...

Part #: 60602 13× Trans-Clear

Door 1 x 4 x 6 wi...

Part #: 60623 2× Dark Purple

Panel 1 x 4 x 5 w...

Part #: 60808 2× Light Bluish Gray

Plate Special 1 x...

Part #: 60897 2× Black

Brick Curved 1 x ...

Part #: 6091 2× Lime

Plate Special 1 x...

Part #: 61252 3× Dark Bluish Gray

Plate Round 1 x 1...

Part #: 6141 9× Lime

Plate Round 1 x 1...

Part #: 6141 4× Black

Plate Round 1 x 1...

Part #: 6141 1× Trans-Yellow

Plate Round 1 x 1...

Part #: 6141 4× Reddish Brown

Plate Round 1 x 1...

Part #: 6141 2× Red

Plate Round 1 x 1...

Part #: 6141 4× Dark Purple

Plate Round 1 x 1...

Part #: 6141 2× Orange

Plate Round 1 x 1...

Part #: 6141 2× Trans-Clear

Turntable 4 x 4 S...

Part #: 61485 1× Black

Plate Special 4 x...

Part #: 6179 1× Light Bluish Gray

Bar 1 x 4 x 3 [En...

Part #: 62113 1× Black

Panel 1 x 1 x 1 C...

Part #: 6231 2× White

Cone 3 x 3 x 2

Part #: 6233 1× Black

Equipment Key

Part #: 62808 2× Pearl Gold

Bar 6L with Stop ...

Part #: 63965 1× Black

Brick Wedged, Cur...

Part #: 64225 2× Lime

Technic Brick 1 x...

Part #: 6541 6× Dark Bluish Gray

Gearbox 4 x 4 x 1...

Part #: 6585 1× Black

Technic Gear 12 T...

Part #: 6589 2× Tan

Tile 1 x 6 with G...

Part #: 6636 1× Reddish Brown

Tile 1 x 6 with G...

Part #: 6636 2× Red

Tile 1 x 6 with G...

Part #: 6636 7× Black

Fairing, Motorcyc...

Part #: 85983 1× Medium Azure

Brick Sloped 30° ...

Part #: 85984 7× Dark Purple

Tile 2 x 4 with G...

Part #: 87079 1× Sand Green

Tile 2 x 4 with G...

Part #: 87079 2× Red

Tile 2 x 4 with G...

Part #: 87079 1× Black

Technic Axle 4 wi...

Part #: 87083 4× Dark Bluish Gray

Brick Special 1 x...

Part #: 87087 12× Light Bluish Gray

Panel 1 x 2 x 3 [...

Part #: 87544 3× Trans-Clear

Panel 1 x 2 x 2 [...

Part #: 87552 3× Black

Panel 1 x 2 x 2 [...

Part #: 87552 2× Trans-Clear

Plate Special 2 x...

Part #: 87580 2× Green

Plate Special 2 x...

Part #: 87580 4× Medium Blue

Plate Special 10 ...

Part #: 89523 1× Dark Purple

Tyre 17.5 x 6 wit...

Part #: 92409 1× Black

Cupboard 2 x 3 x ...

Part #: 92410 1× White

Cupboard 2 x 3 x ...

Part #: 92410 1× Light Bluish Gray

Brick Round 2 x 2...

Part #: 92947 4× Reddish Brown

Animal Body Part,...

Part #: 93160 1× White

Brick Curved 4 x ...

Part #: 93273 1× Green

Brick and Axle Se...

Part #: 96874 1× Orange

Brick Special 1 x...

Part #: 98283 23× Dark Bluish Gray

Brick Sloped 75° ...

Part #: 98560 2× Light Bluish Gray

Large Figure Weap...

Part #: 98578 2× Pearl Titanium

The set features a substantial amount of Reddish Brown and Dark Bluish Gray elements, useful for creating aged and spooky structures. The abundance of Light Bluish Gray 'log' bricks is particularly valuable for builders looking to create rustic or dilapidated designs.