How many pieces does the LEGO Welcome to the Hidden Side (70427-1) have?

The LEGO Welcome to the Hidden Side set (70427-1) contains 189 pieces. It was released in 2020 as part of the LEGO Hidden Side theme.

How can I find missing parts for LEGO set 70427-1?

On BrickMissing you can check which parts from the LEGO Welcome to the Hidden Side (70427-1) you already own. Add your LEGO collection and we'll show exactly which of the 189 pieces you're missing and which you already have.

Can I build the LEGO Welcome to the Hidden Side 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 189 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Welcome to the Hidden Side from?

The LEGO Welcome to the Hidden Side (70427-1) belongs to the LEGO Hidden Side theme. You can browse all Hidden Side sets on BrickMissing to find more sets from this theme.

Welcome to the Hidden Side

🏷️ 70427-1•🎨 Hidden Side•📅 2020•🧱 189 parts•Easy

The LEGO Hidden Side 70427-1 Welcome to the Hidden Side set introduces the augmented reality universe of Newbury, a fictional town where physical and digital ghost-hunting merge. This 189-piece model centers on a brick-built spectral portal structure, featuring interactive rotating elements that activate distinct events within the free LEGO AR app. Viewing the set through a smart device reveals a ghostly world, enabling players to hunt apparitions and confront the boss ghost, Lady E. The set includes four minifigures, ready for exploration and mystery-solving within this ever-expanding digital realm. The distinct portal frame, constructed from various plate and brick elements, forms the central hub for triggering these AR interactions and exploring the haunted Newbury landscape.

Parts Inventory

🧱 189 parts

Part	Color	Qty
Lamp Post 2 x 2 x 7 with 4 Base Flutes 11062	Black	1×
Bar Holder with Clip 11090	Black	4×
Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports] 14395	Black	3×
Panel 1 x 4 x 2 with Side Supports - Hollow Studs 14718	Light Bluish Gray	2×
Tile Round 2 x 2 with Bottom Stud Holder 14769	Dark Bluish Gray	1×
Tile Round 2 x 2 with Bottom Stud Holder 14769	Black	2×
Slope Curved 2 x 2 x 2/3 15068	Light Bluish Gray	2×
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] 15207	Dark Bluish Gray	1×
Plate Special 1 x 2 with Three Teeth [Tri-Tooth] 15208	Yellowish Green	1×
Tile Special 1 x 2 with Two Vertical Teeth / Tooth 15209	Yellowish Green	2×

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Tile Round 2 x 2 with Bottom Stud Holder	14769	Black	2×
Slope Curved 2 x 2 x 2/3	15068	Light Bluish Gray	2×
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall]	15207	Dark Bluish Gray	1×
Plate Special 1 x 2 with Three Teeth [Tri-Tooth]	15208	Yellowish Green	1×
Tile Special 1 x 2 with Two Vertical Teeth / Tooth	15209	Yellowish Green	2×
Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version]	15254	Dark Bluish Gray	2×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	Dark Bluish Gray	1×
Wedge Plate 4 Stud 45° Angle Plate	15706	Medium Azure	2×
Tile Special 1 x 1 with Clip with Rounded Edges	15712	Black	3×
Creature Body Part, Barb Large (Claw, Talon) with Clip	16770	Black	2×
Brick Arch 1 x 3 x 2 Inverted [Inside Bow]	18653	Black	3×
Tile Round 1 x 1 with Hollow Bar	20482	Black	2×
Tile Special 2 x 3 Pentagonal	22385	Black	2×
Plant, Leaves 6 x 5	2417	Medium Azure	3×
Tile 1 x 4 with Groove	2431	Dark Bluish Gray	2×
Tile 1 x 4 with Groove	2431	Medium Azure	1×
Tile Round 1 x 1 Quarter	25269	Black	3×
Plate Special 2 x 3 with Rocks	27261	Black	2×
Turntable 2 x 2 Female	27448	White	1×
Tile 2 x 2 Curved, Macaroni	27925	Medium Azure	1×
Tile 2 x 2 Curved, Macaroni	27925	Yellow	1×
Tile 2 x 2 Curved, Macaroni	27925	Coral	1×
Tile 2 x 2 Curved, Macaroni	27925	Light Bluish Gray	1×
Minifig Head [Plain] [Vented Stud - 2 Holes]	28621	Trans-Neon Green	1×
Insect, Spider with Elongated Tail Section	29111	Black	2×
Brick 2 x 4	3001	Black	2×
Brick 1 x 1	3005	Black	3×
Brick 1 x 6	3009	Dark Bluish Gray	4×
Plant, Sea Grass	30093	Black	1×
Brick 1 x 4	3010	Light Bluish Gray	4×
Animal, Bat	30103	Black	1×
Brick Special 1 x 2 Palisade [aka Log]	30136	Dark Bluish Gray	1×
Plate Special 2 x 4 with Pins	30157	Dark Bluish Gray	1×
Plate 2 x 4	3020	Black	2×
Plate 2 x 2	3022	Black	4×
Plate 2 x 2	3022	Medium Azure	1×
Plate 1 x 2	3023	Medium Azure	3×
Plate 1 x 2	3023	Dark Azure	2×
Plate 1 x 2	3023	Dark Blue	1×
Plate 4 x 6	3032	Black	1×
Plate 4 x 6	3032	Medium Azure	1×
Plate 4 x 8	3035	Medium Azure	1×
Slope 45? 2 x 2	3039	Black	1×
Slope 45° 2 x 1 with Bottom Pin	3040b	Black	2×
Tile 2 x 2 with Groove	3068b	Yellow	2×
Tile 1 x 2 with Smart Phone and Medium Azure Ghost Print	3069bpr0266	Black	1×
Wedge Plate 4 x 6 Cut Corners	32059	Black	1×
Brick 1 x 2 x 2 with Inside Stud Holder	3245c	Black	2×
Plate Special 2 x 2 with Only 2 studs	33909	Light Bluish Gray	4×
Equipment Paint Roller Brush Handle Smooth Handle	34076	Black	1×
Brick 1 x 3	3622	Black	6×
Plate 1 x 3	3623	Black	3×
Plate 1 x 3	3623	Light Bluish Gray	2×
Slope Inverted 45° 2 x 1	3665	Black	1×
Plate 1 x 6	3666	Light Aqua	2×
Plate 1 x 6	3666	Dark Blue	2×
Technic Brick 1 x 2 [1 Pin Hole]	3700	Black	2×
Plate 1 x 4	3710	Dark Blue	4×
Plate 2 x 6	3795	Medium Azure	1×
Plate 2 x 6	3795	Dark Bluish Gray	2×
Plate 2 x 10	3832	Black	1×
Weapon Axe	3835	Black	1×
Brick Round 2 x 2 with Axle Hole	3941	Light Bluish Gray	1×
Plate 8 x 8 with Rounded End	41948	Medium Azure	1×
Dish 2 x 2 Inverted [Radar]	4740	Black	1×
Rock Panel 2 x 4 x 6	47847	Black	2×
Plate Special 1 x 2 [Side Handle Closed Ends]	48336	Black	2×
Plate Special 1 x 1 with Tooth	49668	Yellowish Green	2×
Slope Curved 3 x 1 No Studs	50950	Black	1×
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small	53451	Black	4×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Black	3×
Technic Axle Connector Hub with 3 Axles at 120°	57585	Light Bluish Gray	1×
Cone 1 x 1 [Top Groove]	59900	Trans-Purple	2×
Brick Arch 1 x 3 x 2 Curved Top	6005	Black	2×
Torso - Skeleton Thick Shoulder Pins	60115	Black	1×
Plate Round 4 x 4 with Pin Hole	60474	Light Bluish Gray	1×
Plate Round 1 x 1 with Solid Stud	6141	Medium Azure	1×
Sticker Sheet for Set 70427-1	67022	Unknown	1×
Slope 30? 1 x 2 x 2/3	85984	Black	1×
Tile 2 x 4 with Groove	87079	Black	2×
Plate Special 1 x 2 [Top Clip]	92280	Light Bluish Gray	4×
Plate Special 1 x 2 with Angled Handles on Side	92692	Black	2×
Bracket 1 x 2 - 2 x 4	93274	Dark Bluish Gray	1×
Tile Round 1 x 1 with Monster Eye Print	98138pr9996	Yellowish Green	2×
Brick Special 1 x 2 with Masonry Brick Profile	98283	Light Bluish Gray	4×
Slope 75° 2 x 2 x 3 [Solid Studs]	98560	Black	1×
Bracket 1 x 2 - 1 x 2	99781	Dark Bluish Gray	3×
Torso Plaid Shirt with Brown Suspenders Print, Red Arms, Dark Red Hands	973c22h10pr5057	Red	1×
Hat Ushanka with Red Print	36933pr0001	Tan	1×
Lower Body, Ghost with Marbled Red Pattern	19859pat0006	Trans-Clear	1×
Minifig Head Ghost Axel Chops, with Red Face, White Eyes, Slime Mouth Print	28621pr3140	Trans-Red	1×
Hips and Black Legs with Blue Belt and Bone Print	970c03pr1855	Black	1×
Minifig Head Jack Davids, Eyebrows, Scar on Cheek, Nervous / Puzzled Print	3626cpr3138	Bright Light Blue	1×
Hood over Cap Dark Azure, Black Front with Claw-like Scratches Print	52684pr0124	Light Aqua	1×
Torso Hoodie, with Pockets and Laces, Dark Azure Stripes Print, Light Aqua Arms, Black Hands	973c15h03pr5055	Light Aqua	1×
Torso Shirt, Tattered with Pocket Print, Bright Light Orange Arms and Hands	973c38h38pr5058	Bright Light Orange	1×
Lower Body, Ghost with Marbled Bright Light Orange Pattern	19859pat0008	Trans-Clear	1×
Minifig Head Ghost Scrimper, with Bright Light Orange Face, White Eyes, Slime Mouth Print	28621pr3166	Trans-Yellow	1×
Minifig Head Ghost Waylon, with Bright Light Orange Face, White Eyes, Open Slime Mouth Print	28621pr3139	Trans-Yellow	1×

Build DNA

Parts inventory insights for Welcome to the Hidden Side

189 pieces puts this build -56% against the average Hidden Side set and -58% against the average 2020 release.

LEGOHIDDEN SIDE

Vs average Hidden Side set

-56%-245 parts

This set189

Average set434

Average Hidden Side set: 434 pieces across 22 other sets.

Vs average 2020 set

-58%-260 parts

This set189

Average set449

Average 2020 set: 449 pieces across 450 other sets.

Color profile

21different colors

Dominant color

Black

Black88x

47%

Light Bluish Gray26x

14%

Dark Bluish Gray19x

10%

Medium Azure16x

Unique parts

2 pieces per unique type

Repeat factor

Average pieces per unique type.

Most used part

Plate 1 x 2

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

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Build Insights🧩92unique parts🎨21different colors📊9avg. parts per color🏆6×Plate 1 x 2

🎨 All Hidden Side sets 📅 All sets from 2020

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