This list is now out of date, click here to see the Spring 2018 version.
2017 has been a record breaking year for massive LEGO sets. Not only were Assembly Square (10255) and Ninjago City (70620) released this year, but now LEGO has topped the list with the largest set of all time. Previously, that title was held for seven years by the Taj Mahal (10189). Now, the title of biggest LEGO set goes to the latest variant of the Millennium Falcon from Star Wars (75192). Bumped off the list this time around was the Technic Bucket Wheel Excavator (42055). But, without further ado, here are the top 10 biggest LEGO sets as of September 2017.
10. Assembly Square (10255)

Brick Count: 4,002
Price: $339.99 CDN
Cost/Brick: $0.08
Minifigures: 7
Released: January 1, 2017
Retired: This set is still commercially available
09. The Death Star (75159)

Brick Count: 4,016
Price: $599.99 CDN
Cost/Brick: $0.15
Minifigures: 23 + 2 droids
Released: October 1, 2016
Retired: This set is still commercially available
08. The Disney Castle (71040)

Brick Count: 4,080
Price: $399.99 CDN
Cost/Brick: $0.10
Minifigures: 5
Released: October 6, 2016
Retired: This set is still commercially available
07. Big Ben (10253)

Brick Count: 4,162
Price: $299.99 CDN
Cost/Brick: $0.07
Minifigures: 0
Released: July 2, 2016
Retired: This set is still commercially available
06. Tower Bridge (10214)

Brick Count: 4,295
Price: $299.99 CDN
Cost/Brick: $0.07
Minifigures: 0
Released: October 3, 2010
Retired: This set is still commercially available
05. Ghostbusters Firehouse Headquarters (75827)

Brick Count: 4,634
Price: $399.99 CDN
Cost/Brick: $0.09
Minifigures: 9 + 3 Ghosts
Released: January 2, 2016
Retired: This set is still commercially available
04. Ninjago City (70620)

Brick Count: 4,867
Price: $349.99 CDN
Cost/Brick: $0.07
Minifigures: 16
Released: August 16, 2017
Retired: This set is still commercially available
03. Ultimate Collector’s Millennium Falcon (10179)

Brick Count: 5,197
Price: $499.99 US
Cost/Brick: $0.10
Minifigures: 5
Released: October 24, 2007
Retired: 2010
02. Taj Mahal (10189)

Brick Count: 5,922
Price: $399.99 US
Cost/Brick: $0.07
Minifigures: 0
Released: September 24, 2010
Retired: 2011
01. Millennium Falcon (75192)

Brick Count: 7,541
Price: $899.99 CAD
Cost/Brick: $0.12
Minifigures: 7 + 1 droid
Released: September 14, 2017
Retired: This set is still commercially available
Hi TNB: it’s so sad that all Technic sets have been knocked off this list. The number for the new Millennium Falcon is 75192.
Whoops! Thanks for pointing that out. I felt the same way about losing the Technic set from the list… I feel a little like two Millennium Falcons is a bit much (not that the new one is not super nice).
Can we legitimately remove the obsolete MF from the list? 😉