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75978 LEGO Harry Potter Diagon Alley thumbnail image

75978 LEGO Harry Potter Diagon Alley
Images 6Description 
75978 LEGO Harry Potter Diagon Alley
  • Diagon Alley thumbnail
  • Diagon Alley thumbnail
  • Diagon Alley thumbnail
  • Diagon Alley thumbnail
  • Diagon Alley thumbnail
  • Diagon Alley thumbnail

LEGO 75978 Diagon Alley is a Harry Potter set valued at $594 for new and sealed sets, up 32% from an original retail price of $449.99. The set retired in September 2025 with annual appreciation averaging 29.29% since. Used copies are valued between $487 and $553 depending on condition. Secondary market prices for new and sealed sets typically fall between $532 and $610.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Diagon Alley since September 2025. Very high accuracy
LEGO 75978 Diagon Alley is a Harry Potter set released in 2020, containing 5,544 pieces and 17 minifigures. The modular street scene recreates multiple shops from the Wizarding World, including Ollivanders, Scribbulus, Quality Quidditch Supplies, Florean Fortescue’s Ice Cream Parlor, Flourish & Blotts, Weasleys’ Wizard Wheezes, and the Daily Prophet entrance. Buildings feature detailed façades and interiors such as wand boxes, bookshelves, Quidditch equipment displays, and an ice cream counter. The minifigure lineup includes several exclusive character variants, notably members of the Weasley family, Gilderoy Lockhart, Lucius and Draco Malfoy, Mr. Ollivander, Florean Fortescue, and a Daily Prophet photographer.

A new and sealed Diagon Alley is currently valued at around $594, with annual growth of about 19.6% that is expected to level off to around 9.3% in the coming year, making it a solid investment. The average used price is $493 for those in good overall condition. The 17 included minifigs account for approximately 28% of the set's total value. New and sealed listings currently range from $521 to $614. The set was available for 60 months, from September 2020 to September 2025.
All regions

For Sale (New/Sealed)

 (US) *** Best US listing for Diagon Alley ***
BrickEconomy Choice
$505.00
(US) Harry Potter Diagon Alley 75978 5544pcs Modular Complete Set Box $505.00
-14.9%
(US) Box in fair condition; small hole, loose seals, moderate shelf-wear and creases. Actu... $510.00
-14.1%
(US) BrickLink store Kicks_Bricks $531.00
-10.6%
(US) Harry Potter - Diagon Alley UCS (75978) New/Sealed - Super Cool $534.95
-9.9%
(KR) 75978 Harry Potter Diagon Alley set - Tracking= $535.13
-9.9%
(US) New & Sealed LEGO Harry Potter 75978 Diagon Alley Set Retired - NIB $549.00
-7.5%
(US) Harry Potter Diagon Alley 75978 COMPLETE w/ Box RETIRED READ $549.99
-7.4%
(US) Harry Potter Diagon Alley 75978 5544pcs 16+ Complete Set $550.00
-7.4%
(US) Harry Potter Diagon Alley 75978 Complete Set 5544pcs 16+ Box $550.00
-7.4%
(US) Box is brand new and sealed but does have a fair amount of wear. FREE SHIPPING IF YO... $550.00
-7.4%
(US) New, sealed. Light wear to the box. $550.00
-7.4%
(US) Harry Potter: Diagon Alley (75978) - Retired - Sealed - New - 5544 Pieces $575.00
-3.1%
(KR) 75978 Harry Potter Diagon Alley 5544pcs Brand New Sealed $578.88
-2.5%
(US) Harry Potter: Diagon Alley (75978) Factory Sealed Box $579.00
-2.5%
(US) Harry Potter: Diagon Alley (75978) $580.00
-2.3%
(US) Harry Potter 75978 Diagon Alley Set New Sealed Retired $580.00
-2.3%
(KR) 75978 Harry Potter Diagon Alley 5475pcs SEALED $586.49
-1.2%
(US) NEW - LEGO Harry Potter Diagon Alley - Set 75978 - 5544pcs RETIRED $590.96
-0.5%
(KR) 75978 Harry Potter Diagon Alley Set Sealed / NEW / Genuine $593.48
0.0%
Show 34 more listings

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 75978 Diagon Alley.

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 75978 Diagon Alley.

Diagon Alley Sets

10217 Diagon Alley

Theme Harry Potter
Year 2011
Pieces / Minifigs 2,025 / 12
Availability Retired
10217 LEGO Harry Potter Diagon Alley
Retail $149.99
Value $343.29
Growth  +128.9%
Annual growth 10.6%

Sets in Harry Potter

75980 Attack on The Burrow

Theme / Subtheme Harry Potter / Half-Blood Prince
Year 2020
Pieces / Minifigs 1,047 / 8
Availability Retired
75980 LEGO Harry Potter Half-Blood Prince Attack on The Burrow
Retail $99.99
Value $121.69
Growth  +21.7%
Annual growth 5.3%

75969 Hogwarts Astronomy Tower

Theme / Subtheme Harry Potter / Half-Blood Prince
Year 2020
Pieces / Minifigs 971 / 8
Availability Retired
75969 LEGO Harry Potter Half-Blood Prince Hogwarts Astronomy Tower
Retail $99.99
Value $85.00

75968 4 Privet Drive

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2020
Pieces / Minifigs 797 / 6
Availability Retired
75968 LEGO Harry Potter Chamber of Secrets 4 Privet Drive
Retail $79.99
Value $67.97

75979 Hedwig

Theme / Subtheme Harry Potter / Characters Sculptures
Year 2020
Pieces / Minifigs 630 / 1
Availability Retired
75979 LEGO Harry Potter Hedwig
Retail $39.99
Value $50.00
Growth  +25.0%
Annual growth 8.5%

75981 Harry Potter Advent Calendar

Theme / Subtheme Harry Potter / Seasonal
Year 2020
Pieces / Minifigs 335 / 6
Availability Retired
75981 LEGO Harry Potter Advent Calendar
Retail $39.99
Value $38.79

30628 Monster Book of Monsters

Theme / Subtheme Harry Potter / Promotional
Year 2020
Pieces / Minifigs 316 / 1
Availability Retired
30628 LEGO Harry Potter Monster Book of Monsters
Retail $19.99
Value $34.37
Growth  +71.9%
Annual growth 10.0%

75967 Forbidden Forest Umbridge's Encounter

Theme / Subtheme Harry Potter / Order of the Phoenix
Year 2020
Pieces / Minifigs 253 / 5
Availability Retired
75967 LEGO Harry Potter Order of the Phoenix Forbidden Forest Umbridge's Encounter
Retail $29.99
Value $38.17
Growth  +27.3%
Annual growth 5.2%

75966 Room of Requirement

Theme / Subtheme Harry Potter / Order of the Phoenix
Year 2020
Pieces / Minifigs 193 / 4
Availability Retired
75966 LEGO Harry Potter Order of the Phoenix Room of Requirement
Retail $19.99
Value $30.00
Growth  +50.1%
Annual growth 9.4%

40419 Hogwarts Students Accessory Set

Theme Harry Potter
Year 2020
Pieces / Minifigs 53 / 4
Availability Retired
40419 LEGO Harry Potter Hogwarts Students Accessory Set
Retail $14.99
Value $15.15
Growth  +1.1%
Annual growth 2.6%

30420 Harry Potter and Hedwig

Theme Harry Potter
Year 2020
Pieces / Minifigs 31 / 1
Availability Retired
30420 LEGO Harry Potter and Hedwig
Retail $4.99
Value $5.25
Growth  +5.2%
Annual growth 4.3%

My Collection

Diagon Alley Reviews

10 reviews
4.9
Collectors
Investors
Eurobricks
“I had a magical time building this set while rewatching all the movies and the end result looks amazing. It's a great combination of scenes from different movies to give you a timeless recreation of this iconic location from the world of Harry Potter. The fact that you can... More easily integrate it with the modular buildings is a nice option and finding the secret bonus set inside was a very peasant surprise.”
Full review at www.eurobricks.com
New Elementary
“Diagon Alley is a great set. I had a lot of fun while building. The shops are often just bricks on bricks, but with enough details and interesting techniques sprinkled in to make it an entertaining build. Especially if you are into Harry Potter, the shops bring back the... More memories from the movies and the scenes that werw played there. Here and there the set has minor flaws, but I feel like there are also exceptionally good sections to make up for it. Whether it's worth the £369.99 / US$399.99 is hard to say. That's just a lot of money, but you will also get a lot of bricks in return.”
Full review at www.newelementary.com
The Brothers Brick
“With a light heart, I can recommend it to anyone — to a LEGO fan, to a Harry Potter fan, to a child, to an adult, or anyone else. Finally, it's a set that you let you kind of ignore the price tag. Yes, it $400 in the US, but actually a collection of highly-detailed] themed... More buildings for less than $100 each, plus an exclusive collection of 14 minifigures, four of which can't be found in any other LEGO set. And, hey, there's even a surprise box!”
Full review at www.brothers-brick.com
Brickset
“Almost one hundred Harry Potter sets have become available since 2001 and 75978 Diagon Alley is undoubtedly among my favourite examples! Each building includes exceptional detail and demonstrates tremendous accuracy when compared with the movies. The distribution of... More references throughout the set is equally enjoyable, although I believe there are some missed opportunities for even more.”
Full review at brickset.com

About Harry Potter

LEGO Harry Potter is a LEGO theme licensed from Warner Bros. and based on the book series by J. K. Rowling. Harry Potter was initially introduced in 2001 and released sets with each of the 8 movies. Each theme contained a subtheme that directly related to each of the films in the franchise.
Summary
Harry Potter Diagon Alley set 75978 was released in September 2020, retailing for $450, but has since been retired. New, unopened Diagon Alley sets are valued at $594, while used sets can be found for $493 in good condition.
Read more
Tap a brick in the wall behind the Leaky Cauldron pub and enter the world of Diagon Alley™, where wizards and witches find their potions and Hogwarts students stock up on school supplies like cauldrons, broomsticks and of course, wands. Measuring over a meter wide, this epic model is filled with authentic movie details and a menagerie of 14 minifigures, including four exclusive new characters!

Fans of Harry Potter™ will love discovering the magnificent window displays and intriguing interiors of Diagon Alley™, London’s most magical secret shopping street. This remarkable set captures incredible detail from many of the Harry Potter™ films and can be built four different ways, including closed into a real alley for role-playing stories filled with intrigue and mystery. It’s also compatible with the LEGO® Modular Buildings series, for even more world-building fun.
Description provided by LEGO©