MOC Build: LEGO Triwizard Tournament: The Black Lake set #76420

Harry Potter Triwizard Tournament- The Black Lake #76420
photo © bettylovesbricks.com

Last Year LEGO released a ‘black lake’ set based on the 4th Harry Potter book and movie. The small set is an absolute fan favorite, but also very easy to combine with another set to make this fantastic MOC Build: LEGO Triwizard Tournament: the Black Lake set, including all 8 characters and Triwizard Champions.

About the Harry Potter Hogwarts Black Lake

During Harry Potters 4th Year at Hogwarts the school participates in the Triwizard Tournament. The Selection of the Champions was announced during the Halloween Feast on 31st October and 3 tasks are to be carried out over the rest of the school year. The second task was a competition at the Black Lake. The little gruesome scene was made into a LEGO set last year, and which I was unfortunately was not completely satisfied with. Therefor I decided to make a MOC build (Make your own creation) and turn it into a scene that completely fits the books and movie!

Take a look at all Harry Potter LEGO sets in order of the books.


Video: MOC Build of (2x) LEGO Triwizard Tournament: the Black Lake set #76420


Looking for more MOC’s for your LEGO Hogwarts Modular Castle? Then also be sure to check out this video with a MOC build of the Gryffindor Dorms set as well as the “Prefects Bathroom‘ MOC build and adding an Hogwarts House Elves Kitchen to the castle..


Harry Potter Triwizard Tournament- The Black Lake #76420

Sales Information LEGO 76420 The Black Lake set:

  • Set Name: Triwizard Tournament: The Black Lake
  • Set number: 76420
  • Theme: Harry Potter
  • Pieces: 349
  • Minifigures: 5
  • Age: 8+
  • Dimensions: The pier model measures over 7 in. (18 cm) high, 5 in. (12 cm) wide and 2.5 in. (6 cm) deep and can be placed on top of the underwater scene.
  • Retail PriceUSD 44.99icon / EUR 44.99 (now -/- 30% discount)icon

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What is needed to copy this Harry Potter Black Lake MOC?

  • 2x LEGO 76420 Harry Potter Triwizard Tournament: The Black Lake set. In the video I will show you how I combined these 2 sets into 1 large display. Good to know: the set will probably retire at LEGO by the end of the calendar year 2024. This means that you can currently get it against 30% discount, but only upon availability. Go to: USicon / NLicon / GBicon website.
  • 2x Minifigure part: tan coloured legs with black shorts (e.g. Batman)
  • 1x Minifigure Part: tan coloured legs with red shorts
  • 1x Minifigure: Fleur Delacour in Yule Ball dress (or at least the torso, head and hair)
  • 1x Minifigure part: tan coloured legs with silver grey hips
  • 1x Minifigure: Cho Chang in Ravenclaw robe (e.g. GWP #30651icon )
  • 1x Minifigure: Fleur Delacour (or Gabrielle) in Beauxbaton robe – also in Hogwarts Carriage sets #76440icon and #75958icon.
Harry Potter Triwizard Tournament- The Black Lake #76420
photo © bettylovesbricks.com
Harry Potter Triwizard Tournament- The Black Lake #76420
photo © bettylovesbricks.com

What do you think of this MOC build of a double up LEGO Triwizard Tournament: The Black Lake set? Do you already own one #76420 set or will you be expending it too, like I did in the video? Please share with us in the comments below!

Ciao, Betty

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