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LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake
LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake

LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake

$7.80

(675 reviews)

Ideal for children aged 7 upwards and all Harry Potter fans! Fully assembled, the model measures over 8cm high, 12cm wide and 6cm deep Contains 971 pieces and comes with Harry Potter, Hermione Granger and Ron Weasley minifigures, a buildable Moaning Myrtle's bathroom and authentic accessories Exciting features, such as transforming minifigures and a secret passage, help kids recreate an iconic scene from Harry Potter and the Chamber of Secrets and dream up magical stories of their own Young witches and wizards join Harry, Ron and Hermione as they brew the powerful Polyjuice potion and try to find out what Draco knows about the Chamber of Secrets! Transforming our heroes into Vincent Crabbe and Gregory Goyle, turn the minifigures' heads to reveal an alternative face and adding a different hairpiece! But something's gone wrong - looks like Hermione picked a hair from Mrs Norris! And that's not the only surprise either! LEGO has included an exclusive, golden, anniversary Harry Potter minifigure; 2 random wizard card tiles to collect; and a secret tunnel beneath the sink. When this set is combined with LEGO Harry Potter Hogwarts Chamber of Secrets (76389), the secret tunnel connects the 2 rooms, expanding the play possibilities even further. This magical, modular system lets kids continue adding rooms to create an entire Hogwarts Castle model. LEGO Harry Potter sets recreate action-packed scenes from the movies. With favourite characters, mythical creatures and familiar locations, these enchanting playsets bring the Wizarding World to life!

Ideal for children aged 7 upwards and all Harry Potter fans! Fully assembled, the model measures over 8cm high, 12cm wide and 6cm deep Contains 971 pieces and comes with Harry Potter, Hermione Granger and Ron Weasley minifigures, a buildable Moaning Myrtle's bathroom and authentic accessories Exciting features, such as transforming minifigures and a secret passage, help kids recreate an iconic scene from Harry Potter and the Chamber of Secrets and dream up magical stories of their own Young witches and wizards join Harry, Ron and Hermione as they brew the powerful Polyjuice potion and try to find out what Draco knows about the Chamber of Secrets! Transforming our heroes into Vincent Crabbe and Gregory Goyle, turn the minifigures' heads to reveal an alternative face and adding a different hairpiece! But something's gone wrong - looks like Hermione picked a hair from Mrs Norris! And that's not the only surprise either! LEGO has included an exclusive, golden, anniversary Harry Potter minifigure; 2 random wizard card tiles to collect; and a secret tunnel beneath the sink. When this set is combined with LEGO Harry Potter Hogwarts Chamber of Secrets (76389), the secret tunnel connects the 2 rooms, expanding the play possibilities even further. This magical, modular system lets kids continue adding rooms to create an entire Hogwarts Castle model. LEGO Harry Potter sets recreate action-packed scenes from the movies. With favourite characters, mythical creatures and familiar locations, these enchanting playsets bring the Wizarding World to life!

LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake

(675 reviews)

Ideal for children aged 7 upwards and all Harry Potter fans! Fully assembled, the model measures over 8cm high, 12cm wide and 6cm deep Contains 971 pieces and comes with Harry Potter, Hermione Granger and Ron Weasley minifigures, a buildable Moaning Myrtle's bathroom and authentic accessories Exciting features, such as transforming minifigures and a secret passage, help kids recreate an iconic scene from Harry Potter and the Chamber of Secrets and dream up magical stories of their own Young witches and wizards join Harry, Ron and Hermione as they brew the powerful Polyjuice potion and try to find out what Draco knows about the Chamber of Secrets! Transforming our heroes into Vincent Crabbe and Gregory Goyle, turn the minifigures' heads to reveal an alternative face and adding a different hairpiece! But something's gone wrong - looks like Hermione picked a hair from Mrs Norris! And that's not the only surprise either! LEGO has included an exclusive, golden, anniversary Harry Potter minifigure; 2 random wizard card tiles to collect; and a secret tunnel beneath the sink. When this set is combined with LEGO Harry Potter Hogwarts Chamber of Secrets (76389), the secret tunnel connects the 2 rooms, expanding the play possibilities even further. This magical, modular system lets kids continue adding rooms to create an entire Hogwarts Castle model. LEGO Harry Potter sets recreate action-packed scenes from the movies. With favourite characters, mythical creatures and familiar locations, these enchanting playsets bring the Wizarding World to life!

Ideal for children aged 7 upwards and all Harry Potter fans! Fully assembled, the model measures over 8cm high, 12cm wide and 6cm deep Contains 971 pieces and comes with Harry Potter, Hermione Granger and Ron Weasley minifigures, a buildable Moaning Myrtle's bathroom and authentic accessories Exciting features, such as transforming minifigures and a secret passage, help kids recreate an iconic scene from Harry Potter and the Chamber of Secrets and dream up magical stories of their own Young witches and wizards join Harry, Ron and Hermione as they brew the powerful Polyjuice potion and try to find out what Draco knows about the Chamber of Secrets! Transforming our heroes into Vincent Crabbe and Gregory Goyle, turn the minifigures' heads to reveal an alternative face and adding a different hairpiece! But something's gone wrong - looks like Hermione picked a hair from Mrs Norris! And that's not the only surprise either! LEGO has included an exclusive, golden, anniversary Harry Potter minifigure; 2 random wizard card tiles to collect; and a secret tunnel beneath the sink. When this set is combined with LEGO Harry Potter Hogwarts Chamber of Secrets (76389), the secret tunnel connects the 2 rooms, expanding the play possibilities even further. This magical, modular system lets kids continue adding rooms to create an entire Hogwarts Castle model. LEGO Harry Potter sets recreate action-packed scenes from the movies. With favourite characters, mythical creatures and familiar locations, these enchanting playsets bring the Wizarding World to life!

$7.80 - $214.80

in 34 offers

The lowest price for LEGO 76386 - Harry Potter Hogwarts: Polyjuice Potion Mistake right now is $7.80 at eBay.com.au, compared across 11 retailers.

The all-time low was $6.08 on 14 May 2026 — today's price is 28% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 7 June 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 07/06/2026 08:54:59

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$54.99

LEGO Harry Potter Hogwarts: Polyjuice Potion Mistake 76386 Bathroom Building Kit with Minifigure Transformations; New 2021 (217 Pieces)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Amazon.com.au

$68.99

LEGO Harry Potter Hogwarts : Polyjuice Potion Mistake 76386 Bathroom Building Kit;Transforming Minifigures

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$7.80

76386 Lego Harry Potter Polyjuice Potion Mistake Minifigure- You Pick

Delivery $32.44

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$15.00

LEGO Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Delivery $11.15

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$15.00

LEGO Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$31.95

LEGO Harry Potter 76386 Hogwarts Polyjuice Potion Mistake

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$39.95

Lego Harry Potter No 76386 Hogwarts Polyjuice Potion Mistake

Delivery $11.15

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$40.00

Lego Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Delivery $12

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$41.76

LEGO Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$43.60

Lego Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Delivery $37.37

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Best product ever!
17 September 2021Brooke H.

originally posted on myhobbies.com.au

I absolutely adored building these lego sets and every second of it was thoroughly enjoyable. Each build was unique whilst still following a familiar pattern that helped the building process flow. The detailed interior was really exciting to create and the exterior was just was beautiful. I loved moving around the different sets and creating my ideal modular system. I would definitely recommend this set for ALL lego harry potter fans as it is definitely my favourite so far!

Excellent Service
14 March 2023Claire D.

originally posted on importatoy.co.za

Unfortunately this item had sold out, however the service I received in getting a replacement item was impeccable. You can't go wrong when purchasing the Harry Potter lego sets! And especially not if you get it through importatoy!!

Fun little kit
1 July 2021Zoeyvonne88

originally posted on LEGO

Everyone loves Harry Potter in this house. This kit was a fun little project. It didn’t take too long to complete, and there was even a few little bits left over. Really liked the anniversary edition figurine that came with it. My daughter is a bit too old to play with it once it’s built really but it is a nice decorative piece

Specification

Features
Remote control requiredN
Release date (DD/MM/YYYY)01/06/2021
MaterialPlastic
Country of originCzech Republic

Price comparison

Updated 3 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$54.99

LEGO Harry Potter Hogwarts: Polyjuice Potion Mistake 76386 Bathroom Building Kit with Minifigure Transformations; New 2021 (217 Pieces)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Amazon.com.au

$68.99

LEGO Harry Potter Hogwarts : Polyjuice Potion Mistake 76386 Bathroom Building Kit;Transforming Minifigures

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$7.80

76386 Lego Harry Potter Polyjuice Potion Mistake Minifigure- You Pick

Delivery $32.44

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$15.00

LEGO Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Delivery $11.15

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

eBay.com.au

$15.00

LEGO Harry Potter: Hogwarts: Polyjuice Potion Mistake (76386)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Best product ever!
17 September 2021

I absolutely adored building these lego sets and every second of it was thoroughly enjoyable. Each build was unique whilst still following a familiar pattern that helped the building process flow. The detailed interior was really exciting to create and the exterior was just was beautiful. I loved moving around the different sets and creating my ideal modular system. I would definitely recommend this set for ALL lego harry potter fans as it is definitely my favourite so far!

Brooke H. originally posted on myhobbies.com.au
Excellent Service
14 March 2023

Unfortunately this item had sold out, however the service I received in getting a replacement item was impeccable. You can't go wrong when purchasing the Harry Potter lego sets! And especially not if you get it through importatoy!!

Claire D. originally posted on importatoy.co.za
Fun little kit
1 July 2021

Everyone loves Harry Potter in this house. This kit was a fun little project. It didn’t take too long to complete, and there was even a few little bits left over. Really liked the anniversary edition figurine that came with it. My daughter is a bit too old to play with it once it’s built really but it is a nice decorative piece

Zoeyvonne88 originally posted on LEGO
Fun little set
15 April 2023

Bought this for my God-son who loves Harry Potter and Lego (age 7). He was able to build it with some guidance and enjoyed seeing the trap door come together. The cat Hermione is also his favourite. A great set for a reasonable price.

Davey88 originally posted on very.co.uk
Harry Potter Lego
20 July 2021

My daughter loves Harry Potter and she wanted some Harry Potter lego. I didn't know where to start but this little set was very reasonably priced and she loves the bit where Hermione drinks the polyjuice potion and turns into a cat so it was perfect. It made a great present and it was her first time to make a lego kit.

cateycat1 originally posted on ebay.com
Hey cat lady! Ron likes your whiskers.
22 January 2023

Whilst being the smallest of the new Hogwarts modular sets, this set does not fall short of delivering a fun playable replication of the poly juice scene. With interchangeable headwear and alternate faces for Harry and Ron and a great looking Cat mask for Hermoine, the amount of detail is great. And when combine with the Chamber of Secrets set you get an entrance to the slide module through the bathroom sink. A must have for any HP fan.

Ivor C. originally posted on importatoy.co.za
LEGO should do more sets like this
2 June 2021

This set is an all around success, with the three minifigures that you can transform into Crabbe, Goyle, and Cat-Hermione. The design for the Chamber entrance(Spoiler Alert!) is really smart and similar to the movies. However, the best part about this set has to be the modular ability. It can really be used to create your own custom Hogwarts, which I love!

Petewot originally posted on LEGO
LEGO® Harry Potter: Polyjuice Potion Mistake
19 December 2022

My daughter got this for her birthday (8) and was very happy with it! It connects to the Hogwarts Great Hall that we already had and the kids love roleplaying with the builds and minifigs.

EvieBee originally posted on myer.com.au
Lego set 76386 short review
21 December 2022

This was a really simple and fun set to build with a grey design. The minifigures included were also incredible! I would highly recommend picking this up if you’re a Harry Potter fan.

Lachlan.D originally posted on myer.com.au
My children love this
16 July 2021

Wow my children can't get enough of this lego set they are Harry Potter mad. Easy follow instructions to build the product lego fit together perfectly lego characters that are included are amazing great detail which my children loved on to buy more harry potter lego as my children loved it so much would definitely recommend to family and friends.

Kez200489 originally posted on LEGO

Specification

Features
Remote control requiredN
Release date (DD/MM/YYYY)01/06/2021
MaterialPlastic
Country of originCzech Republic

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