LEGO 75978-1 Diagon Alley ↗
Harry Potter · 75978-1

LEGO 75978-1 Diagon Alley

LEGO 75978 Diagon Alley is a Harry Potter set valued at $568 for new and sealed sets, up 26% from an original retail price of $449.99. The set retired in September 2025 with annual appreciation averaging 12.12% since. Used copies are valued between $463 and $553 depending on condition. Secondary market prices for new and sealed sets typically fall between $530 and $587.

2020 5,548 pieces Retired
Market position26.3% above original retailNew-market estimate vs. retail
90-day trend-1.2%Recorded value movement
AvailabilityRetiredLatest collected status
History depth70 monthsMonthly market records
PRICE GUIDE

Current LEGO 75978-1 values

Condition-specific market estimates compared with the original retail price.

New / sealed value $568.26 +26.3% vs. retail
Used value $471.66 $462.69 – $552.97
Original retail $449.99 Released Sep 2020
Market values are estimates for the set condition shown; live retailer and marketplace prices may differ.
MARKET TREND

Price history

Sealed-market monthly prices through Jul 2026; used values are a current snapshot.

Sealed latest$617.5912 plotted months
Used value$471.66Current estimate
Used range$462.69 – $552.97Current low to high
Latest close$617.59
Period low$580.52
Period high$640.13
Period change+5.5%
MARKET VALUE Sealed price history
Latest $617.59 +5.5% over period
Monthly market value history Closing market value from Aug 2025 to Jul 2026. $649 $623 $597 $572 Aug 2025: $585.52 Sep 2025: $580.52 Oct 2025: $618.58 Nov 2025: $620.83 Dec 2025: $640.13 Jan 2026: $611.01 Feb 2026: $636.45 Mar 2026: $616.42 Apr 2026: $620.93 May 2026: $606.04 Jun 2026: $593.60 Jul 2026: $617.59 Aug 2025Jan 2026Jul 2026
View monthly price data
MonthOpenLowHighCloseSalesSource
2026-07 $556.99 $536.78 $657.99 $617.59 65 Brickeconomy
2026-06 $512.66 $485.67 $647.57 $593.60 46 Brickeconomy
2026-05 $546.57 $526.75 $645.69 $606.04 56 Brickeconomy
2026-04 $536.26 $508.03 $677.38 $620.93 51 Brickeconomy
2026-03 $555.93 $535.77 $656.74 $616.42 34 Brickeconomy
2026-02 $549.66 $520.73 $694.31 $636.45 68 Brickeconomy
2026-01 $551.05 $531.06 $650.98 $611.01 94 Brickeconomy
2025-12 $552.84 $523.74 $698.32 $640.13 87 Brickeconomy
2025-11 $559.91 $539.60 $661.44 $620.83 80 Brickeconomy
2025-10 $534.23 $506.11 $674.81 $618.58 71 Brickeconomy
2025-09 $523.55 $504.56 $618.49 $580.52 83 Brickeconomy
2025-08 $505.67 $479.06 $638.75 $585.52 36 Brickeconomy
MARKET ACTIVITY

Sales and liquidity

Reported sealed-market sales and monthly price ranges for the latest 6 months.

Through Jul 2026
Reported sales3206-month total
Monthly average53.3reported sales
Active months6 / 6with at least one sale
3-month trend+9.2%167 vs 153 sales
LiquidityHigh activitybased on reported sales
Recent monthly price distributionLow · close · high
Jul 2026 $617.59 $536.78 $617.59 $657.99 65 sales
Jun 2026 $593.60 $485.67 $593.60 $647.57 46 sales
May 2026 $606.04 $526.75 $606.04 $645.69 56 sales
Apr 2026 $620.93 $508.03 $620.93 $677.38 51 sales
Mar 2026 $616.42 $535.77 $616.42 $656.74 34 sales
Feb 2026 $636.45 $520.73 $636.45 $694.31 68 sales
Activity labels describe reported historical sales only; they do not guarantee that a set can be sold immediately.
VALUE OUTLOOK

Growth and retirement

Total growth+26.3%New / sealed value
Annual growth+12.1%Recorded annual rate
1-year forecast$637.14N/A
5-year forecast$909.42N/A
5-year range$865.00 – $938.00Collected estimate
Used value range$462.69 – $552.97Observed market range
MethodSource-provided projectionDisplayed as collected; SetWatch does not recalculate it.
Forecast sourceBrickeconomySource attached to the forecast fields.
Recorded history70 monthsCurrent history coverage on SetWatch.
ConfidenceNot independently scoredA range appears only when the source supplies bounds.

Forecasts are directional estimates, not guaranteed future prices or investment advice. Actual value depends on condition, demand, fees, and sale timing.

A Harry Potter flagship street with modular display appeal, Diagon Alley (2020) is an Exclusive release whose multiple exclusive character variants and distinctive shop builds underpin collector interest, and extended production tempered short-term scarcity while post-retirement demand is likely to firm.

INCLUDED CHARACTERS

Minifigures

17 listed · $166.23 value

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