Retired Brick Sets
LEGO 75978 Diagon Alley

75978Diagon Alley

  • 2020released
  • 5,548pieces
  • 17minifigures
  • Harry Pottertheme
Typical new & sealed £431 from £328 · 7.8p/piece
Typical used & complete £325 from £240 · 5.9p/piece
Best trusted deal right now£240 Used · complete · · 26% below typical View on eBay →
Updated 4h ago · 54 listings found

Price history

eBay UK · median Buy It Now asking price

We started tracking this set on 18 Oct 2026. The chart fills in as we record prices each day.

54 listings

  1. LEGO Harry Potter Diagon Alley 75978 Complete Set with Box
    UK Used · complete 📦 Box ⏱ 4d 16h · 0 bids
    dani-891828 · 100% · 52 feedback
    £164 incl. £13.63 postage 2.9p/piece Current bid
  2. LEGO Harry Potter: Diagon Alley (75978)
    UK Used · not stated ⏱ 6d 15h · 0 bids
    1fluffybunny2003 · 100% · 1,790 feedback
    £198 incl. £10.00 postage 3.6p/piece Current bid
  3. Lego Diagon Alley Set 75978
    UK Used · not stated ⏱ 5d 16h · 0 bids
    hanneyhay2008 · 100% · 96 feedback
    £219 postage not shown 3.9p/piece Current bid
  4. LEGO Harry Potter Diagon Alley 75978 Complete Set 5544pcs Without Box 16+
    UK Used · complete No box
    nikokk34 · 100% · 22 feedback
    £240 postage not shown 4.3p/piece 26% below typical
  5. LEGO Harry Potter Diagon Alley 75978 5544pcs 16+ Limited Edition Set RETIRED SET
    UK New & sealed 📦 Box 📘 Instructions ⏱ 4d 12h · 0 bids
    antstub91 · 97% · 675 feedback
    £261 free postage 4.7p/piece Current bid
  6. Brand new and sealed LEGO Harry Potter: Diagon Alley (75978)
    UK New & sealed 📦 Box 📘 Instructions ⏱ 4d 7h · 0 bids
    man-2818 · 100% · 2 feedback · ⚠ check carefully
    £281 incl. £10.00 postage 5.1p/piece Current bid
  7. LEGO Harry Potter Diagon Alley 75978. USED. All figures. Excellent condition.
    UK Used · not stated
    fjhakney · 100% · 5 feedback · ⚠ check carefully
    £286 incl. £10.00 postage 5.2p/piece 9% below typical
  8. Lego 75978 – Harry Potter: Diagon Alley 100% Complete with Box & Instructions
    UK Used · complete 📦 Box 📘 Instructions
    daniel_dm116 · 100% · 727 feedback
    £308 postage not shown 5.5p/piece 5% below typical
  9. LEGO Harry Potter Diagon Alley 75978
    UK Used · not stated
    barwills1 · 99.1% · 208 feedback
    £313 free postage 5.6p/piece About typical
  10. Lego Harry Potter diagon alley 75978
    UK Used · not stated
    dundeegirl05 · 100% · 270 feedback
    £313 postage not shown 5.6p/piece About typical
  11. LEGO Harry Potter Diagon Alley 75978 5544pc Limited Edition Retired 2020
    UK Used · not stated ⏱ 6d 6h · 0 bids
    rickymcneil123 · 0% · 66 feedback · ⚠ check carefully
    £319 incl. £5.80 postage 5.7p/piece Current bid
  12. LEGO Harry Potter Diagon Alley 75978 Mini Figures with Box and Instructions
    UK Used · not stated 📦 Box 📘 Instructions
    eleblun27 · 100% · 20 feedback
    £320 incl. £10.00 postage 5.8p/piece About typical
  13. LEGO Harry Potter Diagon Alley 75978 Complete Set with Box
    UK Used · complete 📦 Box
    lkj1990lfc · 100% · 95 feedback
    £323 incl. £10.00 postage 5.8p/piece About typical
  14. LEGO Harry Potter Diagon Alley 75978 99% complete no box
    UK Used · complete No box
    therecyclers45 · 98.7% · 327 feedback
    £325 incl. £12.36 postage 5.9p/piece About typical
  15. LEGO Harry Potter Diagon Alley 75978 100% Complete + Box & Instructions Retired
    UK New & sealed 📦 Box 📘 Instructions
    njb_sales · 100% · 1,299 feedback
    £328 postage not shown 5.9p/piece 24% below typical
  16. LEGO Harry Potter Diagon Alley 75978 with extra buildings & minifigs please read
    UK Used · not stated
    bitsnbobsmk · 100% · 1,088 feedback
    £361 incl. £10.98 postage 6.5p/piece 14% above typical
  17. Lego 75978 Harry Potter Diagon Alley 100% Complete with box and instructions
    UK Used · complete 📦 Box 📘 Instructions
    stepow_38 · 100% · 534 feedback
    £368 incl. £14.00 postage 6.6p/piece 13% above typical
  18. LEGO Harry Potter: Diagon Alley (75978)
    UK New & sealed 📦 Box 📘 Instructions ⏱ 3d 8h · 0 bids
    beagleman-wood · 100% · 142 feedback
    £380 incl. £5.21 postage 6.9p/piece Current bid
  19. LEGO Harry Potter Diagon Alley 75978 - BNIB - please see description
    UK New & sealed 📦 Box 📘 Instructions
    jly011182 · 100% · 219 feedback
    £398 incl. £14.30 postage 7.2p/piece 8% below typical
  20. Retired LEGO Harry Potter 75978 Diagon Alley 5544 Pcs
    UK New & sealed 📦 Box 📘 Instructions
    tho-904547 · 100% · 114 feedback
    £402 incl. £12.36 postage 7.2p/piece 7% below typical
  21. Brand New Sealed LEGO Harry Potter Diagon Alley 75978 Good Conditio
    UK New & sealed 📦 Box 📘 Instructions
    day9576 · 100% · 365 feedback
    £402 incl. £11.76 postage 7.2p/piece 7% below typical
  22. LEGO Harry Potter Diagon Alley 75978 5544pcs 16+ 2020 Complete Set Box
    UK New & sealed 📦 Box 📘 Instructions
    demiantony1456 · 100% · 1 feedback · ⚠ check carefully
    £407 incl. £11.76 postage 7.3p/piece 6% below typical
  23. LEGO Harry Potter Diagon Alley 75978 BNIB
    UK New & sealed 📦 Box 📘 Instructions
    aldo2blue · 100% · 443 feedback
    £408 incl. £13.63 postage 7.4p/piece 5% below typical
  24. LEGO Harry Potter: Diagon Alley (75978) New
    UK New & sealed 📦 Box 📘 Instructions
    wither_bricks · 100% · 15 feedback
    £409 incl. £13.63 postage 7.4p/piece 5% below typical
  25. Brand new unopened and sealed LEGO Harry Potter: Diagon Alley (75978)
    UK New & sealed 📦 Box 📘 Instructions
    scr-repton · 100% · 829 feedback
    £410 incl. £13.63 postage 7.4p/piece 5% below typical
  26. LEGO Harry Potter Diagon Alley 75978 Brand New & Sealed Retired Set
    UK New & sealed 📦 Box 📘 Instructions
    downtownfunk_00 · 100% · 32 feedback
    £410 incl. £5.88 postage 7.4p/piece 5% below typical
  27. Lego 75978 Harry Potter Diagon Alley New And Sealed.
    UK New & sealed 📦 Box 📘 Instructions
    harrycobain · 100% · 778 feedback
    £413 incl. £13.63 postage 7.4p/piece About typical
  28. Retired LEGO Harry Potter 75978 Diagon Alley 5544 Pcs Mint
    UK New & sealed 📦 Box 📘 Instructions
    mcstiffler2000 · 100% · 75 feedback
    £414 incl. £13.63 postage 7.5p/piece About typical
  29. LEGO Harry Potter 75978 Diagon Alley
    UK New & sealed 📦 Box 📘 Instructions
    jim97_uk · 100% · 448 feedback
    £414 incl. £14.00 postage 7.5p/piece About typical
  30. LEGO Harry Potter Diagon Alley 75978 5544pcs Set 16+ Wizarding World
    UK New & sealed 📦 Box 📘 Instructions
    smc_uk_osgiwdt2 · 100% · 102 feedback
    £418 incl. £11.76 postage 7.5p/piece About typical
  31. LEGO Harry Potter Diagon Alley 75978
    UK New & sealed 📦 Box 📘 Instructions
    james_el_gato · 100% · 55 feedback
    £418 incl. £13.63 postage 7.5p/piece About typical
  32. LEGO Harry Potter Diagon Alley 75978. Retired Product. New And Sealed.
    UK New & sealed 📦 Box 📘 Instructions
    adrsan183 · 100% · 1,009 feedback
    £420 free postage 7.6p/piece About typical
  33. LEGO Harry Potter Diagon Alley 75978 Complete Set 5544pcs 16+ Retired
    UK Used · complete
    nct1784 · 100% · 25 feedback
    £423 incl. £8.52 postage 7.6p/piece 30% above typical
  34. LEGO Harry Potter Diagon Alley 75978 Complete Set 5544 Pieces Ages 16+
    UK New & sealed 📦 Box 📘 Instructions
    redsdiamond9 · 100% · 2,102 feedback
    £428 incl. £14.54 postage 7.7p/piece About typical
  35. LEGO Harry Potter Diagon Alley 75978 5544pcs Limited Edition Retired 16+
    UK New & sealed 📦 Box 📘 Instructions
    oma_9640 · new seller, no feedback yet · ⚠ check carefully
    £431 incl. £5.88 postage 7.8p/piece About typical
  36. LEGO Harry Potter Diagon Alley (75978) - Retired set BNIB sealed
    UK New & sealed 📦 Box 📘 Instructions
    downtownfunk_00 · 100% · 32 feedback
    £432 incl. £16.82 postage 7.8p/piece About typical
  37. LEGO Harry Potter: Diagon Alley (75978) Transit Damage New Inside Sealed
    UK New & sealed 📦 Box 📘 Instructions
    rewardgifts · 99.7% · 1,048 feedback
    £434 incl. £3.95 postage 7.8p/piece About typical
  38. LEGO Harry Potter Diagon Alley 75978 BNIB Sealed Retired Set
    UK New & sealed 📦 Box 📘 Instructions
    steviert2012 · 100% · 67 feedback
    £435 postage not shown 7.8p/piece About typical
  39. LEGO Harry Potter Diagon Alley 75978 Retired set
    UK Used · not stated
    matthewderek123 · 100% · 62 feedback
    £440 incl. £24.94 postage 7.9p/piece 39% above typical
  40. LEGO Harry Potter Diagon Alley 75978 5544pcs Limited Edition Retired 16+ BNIB
    UK New & sealed 📦 Box 📘 Instructions
    mrswooey · 99.9% · 22,121 feedback
    £440 free postage 7.9p/piece About typical
  41. LEGO Harry Potter Diagon Alley 75978 Collectible Set Complete
    UK Used · complete
    2014snoopy75 · 100% · 180 feedback
    £440 postage not shown 7.9p/piece 35% above typical
  42. LEGO 75978 Harry Potter: Diagon Alley Brand New & Sealed Set minor box damage
    UK New & sealed 📦 Box 📘 Instructions
    michaeoconnel-85 · 100% · 486 feedback
    £445 incl. £14.54 postage 8.0p/piece About typical
  43. LEGO Harry Potter - 75978 - Diagon Alley - 17 Minifigures - New, Sealed, Retired
    UK New & sealed 📦 Box 📘 Instructions
    falklandrover · 100% · 3,721 feedback
    £445 free postage 8.0p/piece About typical
  44. Lego Diagon Alley BNISB (75978) Retired Set
    UK New & sealed 📦 Box 📘 Instructions
    mccarth-53 · 100% · 121 feedback
    £445 free postage 8.0p/piece About typical
  45. LEGO Harry Potter Diagon Alley 75978 BNISB Retired Set
    UK New & sealed 📦 Box 📘 Instructions
    brick-fellowship · 100% · 1,574 feedback
    £452 incl. £11.76 postage 8.1p/piece 5% above typical
  46. LEGO Harry Potter: Diagon Alley (75978)
    UK New & sealed 📦 Box 📘 Instructions
    louises_lego · 100% · 271 feedback
    £472 incl. £5.88 postage 8.5p/piece 9% above typical
  47. LEGO 75978 Harry Potter Diagon Alley New & Sealed
    UK New & sealed 📦 Box 📘 Instructions
    hungle84 · 100% · 349 feedback
    £479 incl. £13.63 postage 8.6p/piece 11% above typical
  48. Lego Harry Potter 75978 Diagon Alley - Brand New & Sealed
    UK New & sealed 📦 Box 📘 Instructions
    john07841 · 100% · 1,563 feedback
    £480 incl. £14.54 postage 8.7p/piece 11% above typical
  49. LEGO Harry Potter: Diagon Alley 75978
    UK New & sealed 📦 Box 📘 Instructions
    xanderules · 100% · 392 feedback
    £486 free postage 8.8p/piece 13% above typical
  50. LEGO Harry Potter Diagon Alley 75978 Wizarding World Complete Set 5544pcs 16+
    UK New & sealed 📦 Box 📘 Instructions
    tyrich_15 · 100% · 7 feedback · ⚠ check carefully
    £497 incl. £11.76 postage 9.0p/piece 15% above typical
  51. Lego 75978 Harry Potter Diagon Alley 5544pcs SEALED
    UK New & sealed 📦 Box 📘 Instructions
    retrolover1990 · 100% · 477 feedback
    £517 free postage 9.3p/piece 20% above typical
  52. LEGO Diagon Alley 75978 - Harry Potter - Brand New / Retired
    UK New & sealed 📦 Box 📘 Instructions
    mainlylegoman · 100% · 1,598 feedback
    £531 incl. £14.54 postage 9.6p/piece 23% above typical
  53. Lego 75978 - Diagon Alley - Harry Potter - Brand New in Sealed Box
    UK New & sealed 📦 Box 📘 Instructions
    vandalberg · 100% · 939 feedback
    £600 free postage 10.8p/piece 39% above typical
  54. **Brand New** Harry Potter Diagon Alley Lego Set 75978
    UK New & sealed 📦 Box 📘 Instructions
    pstangoods · new seller, no feedback yet · ⚠ check carefully
    £603 incl. £5.00 postage 10.9p/piece 40% above typical

Only seeing UK listings. Compare all 5 countries →

Before you buy 75978

  • Check all 17 minifigures are included. Minifigures are the first thing sold off from used sets, and often the most valuable part.
  • “Complete” should mean all 5,548 pieces. Ask the seller whether they checked against the inventory or just think it's complete.
  • Sealed means factory seals intact. Ask for photos of the seals and box corners; box condition moves the price a lot on retired sets.
  • Check the seller's feedback. For a set at this price, stick to sellers with 98%+ feedback and a history of selling LEGO.
  • Watch out for knock-offs. Brands like Lepin and Mould King copy popular sets. Look for the LEGO logo on the box and bricks.
  • Pay through eBay. eBay's Money Back Guarantee covers items that don't match the description, but only if you pay through eBay.

Questions

How much is LEGO 75978 Diagon Alley worth?

Based on current eBay UK Buy It Now listings, a new sealed set typically costs £431 and a complete used set about £325, including postage. These are asking prices, so a set can sell for less.

How many pieces are in LEGO 75978?

Diagon Alley has 5,548 pieces and 17 minifigures. It was released in 2020.

What is the price per piece of 75978?

At the typical sealed price of £431 it works out at 7.8p per piece.

More Harry Potter sets from around 2020

All Harry Potter →
LEGO 71043 Hogwarts Castle
71043Hogwarts Castle2018 · 6,020 pcs · 4 figsfrom £139
LEGO 76405 Hogwarts Express - Collectors' Edition
76405Hogwarts Express - Collectors' Edition2022 · 5,139 pcs · 20 figsfrom £292
LEGO 76417 Gringotts Wizarding Bank – Collectors' Edition
76417Gringotts Wizarding Bank – Collectors' Edition2023 · 4,809 pcs · 13 figsfrom £250
LEGO 76391 Hogwarts Icons Collectors' Edition
76391Hogwarts Icons Collectors' Edition2021 · 3,010 pcs · 3 figsfrom £96.64
LEGO 76419 Hogwarts Castle and Grounds
76419Hogwarts Castle and Grounds2023 · 2,660 pcs · 1 figsfrom £42.30
LEGO 76393 Harry Potter & Hermione Granger
76393Harry Potter & Hermione Granger2021 · 1,673 pcsfrom £177
LEGO 76389 Hogwarts Chamber Of Secrets
76389Hogwarts Chamber Of Secrets2021 · 1,171 pcs · 11 figsfrom £47.05
LEGO 76408 12 Grimmauld Place
7640812 Grimmauld Place2022 · 1,086 pcs · 9 figsfrom £241