Lego Harry Potter Gold Bricks Locations Guide. Red Bricks included too

Red Bricks Locations Guide 11-20

#11. Red Brick Location Regenerate Hearts
Enter this secret room through the hidden entrance at the back of the Immobulus classroom once your inside you will need to use the Riddikulus spell on the four crates around the room.

#12. Red Brick Location Extra Hearts (including a WARNING)
This red brick is located in the classroom where you learned Wingardium Leviosa, but before you go down please be warned this room suffers from a game-stopping glitch, so you may want to keep this red brick as last. Blast the lock and go down the trapdoor in the floor. Open the ball on the far side with a dark wizard for the red brick. (Build the dragon to unlock Mad-eye Moody.)

#13. Red Brick Location Invincibility
This red brick is in Dumbledore’s office just walk up to Fawks the phoenix and as he lights up and watch the brick magically appear.

#14. Red Brick Location Red Brick Detector
Use a bearded wizard or Hagrid in the library to cross the age line and enter the restricted section. On the far back wall you can see the brick on the shelf. Place books from on the floor onto the shelf in the correct spots to knock it down.

#15. Red Brick Location Hogwarts Crest Detector
To reveal this crest located in the Ravenclaw common room/tower. Move around the room and locate the various grey lego pieces that will eventually form a raven bird on the floor. Use Wingardium Leviosa to blast it and watch it fly up, leaving behind the red brick.

#16. Red Brick Location Gold Brick Detector
Use the time turner clock in the owlry you will need Hermione to use the time turner. Have the owls lift you to the highest floor. Turn on the projector and pull the brick out of the projection that appears on the wall.

#17. Red Brick Location Christmas
This red brick is located in the Hufflepuff common room but to gain access you will need a Hufflepuff character, after entering the room move into the second room with the large arch centre and use your Wingardium Leviosa on the centre plant this will bloom into a mass of flowers destroy all these to reveal the Christmas Red Brick.

#18. Red Brick Location Collector Ghost Studs
This brick will be located in the courtyard with the Pendulum in the back. Once there, destroy the statues around the water fountain and build up the pieces that appear.
At 0:55 minute into this video the location guide starts.

#19. Red Brick Location Fast Magic
To get this red brick use dark magic to destroy the large black boulder at the back of the defense against the dark arts class room.

#20. Red Brick Location Fast Dig
In the outside area before the quidditch pitch use the pile of grey disks to create a rain cloud drag it across the path to make 4 bunches of flowers grow, blow these up to reveal your Red Brick.

The 4 Houses Red Bricks
You’ll be able to find red bricks in the Slytherin common room, the Hufflepuff common room, the Gryffindor common room, and the Ravenclaw common room. At the portrait of the fat lady there is access to each of the four house’s common rooms. You have to have a member of that house to access it. Use the polyjuice potion at the top of the stairs to turn into the appropriate character. Dumbledore/Dobby has access to all four houses. — Thanks to Josh.

Please leave a comment if you know more brick locations. If we work together we can find them all. Thanks for any helpful tips you can give!