LEGO Diagon Alley™ 75978

Diagon Alley Revealed

What an amazing spread! This image lays out every single building and minifigure from LEGO Harry Potter Diagon Alley, set 75978. With 5544 pieces, it's a monumental undertaking, and at just $0.08 per brick, the value in these detailed sub-assemblies is clear. Look at how each iconic shop is a self-contained marvel, waiting to be joined to form the famous street.

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Set # 75978
Released 2020
Pieces 5544
Price / Piece 8.1¢
Figures 17
Age 16+
Scale & Brick Value Piece Volume & Pricing Ranks
Piece Rank #14 Top 1% active
Historic Scale #20 Top 1% of 20,150
Part Efficiency #502 8.0¢/pc • Top 33%
Collector Insights Verified Oct 11, 2026

Includes 20 exclusive molds and 5 rare elements recorded across official inventories.

This set also includes 4 light extensions
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Set 75978 Build Specifications & Overview

Complete build timeline, spatial dimensions, and display footprint analysis.

Value Breakdown

Est. Build Time (*Pieces per minute)
Casual 46.8h 2 ppm*
AFOL (Avg) 23.4h 4 ppm*
Master Builder 13.4h 7 ppm*
Avg Price / Hour
$19.23/hr
Specialty Part Value
Minifigures (17) $85.00
Animals (5) $10.00
Specialty Total $95.00
Price Per Basic Brick
$0.06

Highly valuable! 31% cheaper than average LEGO sets.

Display Dimensions

The Scale Check

Height equivalent to approx 19.6 minifigures stacked.

Display Fit
Oversized: Requires Deep Tabletop Surface
Building Instructions

Download or view the official PDF

Third-Party Display Extension

Best LED Kits for LEGO Diagon Alley 75978

BUILDS:4|STARTER: $74.99|PRO: $209.99|MEDIAN: $89.99

From BrickBling's modular micro-LEDs to LightMyBricks' premium single-edition kit, the market spans $75 to $210. Each wiring philosophy—whether continuous harnesses or expansion boards—brings its own approach to lighting this 5544-piece wizarding street. Here's how the options compare for illuminating every shop and alley.

BrickBling LED kit for LEGO Diagon Alley 75978 with modular micro-LEDs
budget floor

Budget Brilliance for the Practical Builder

$74.99
Starting At
Classic Version$74.99
Remote Control Version$99.99

BrickBling's kit is the entry-level option at $74.99, focusing on core lighting for the main facades and interiors. It uses modular micro-LEDs for clean concealment, and you can choose between Classic or Remote Control versions. This is the best fit for collectors who want a straightforward, effective glow without extra frills.

Set Cost Ratio16.66%
RGB CapableNo
RemoteAvailable
Price Rank#1 of 4
Game of Bricks LED kit for LEGO Diagon Alley 75978 with expansion boards
budget mid +$10.00(vs Cheapest Starter Kit)

Versatile Glow for the Interactive Enthusiast

$84.99
Starting At
Classic$84.99
Classic RC + Sound$104.99
Standard$109.99
Standard Remote$129.99
Standard RC + Sound$150.99

Game of Bricks sits at $84.99 with expansion board architecture, offering stable connections and several tiers including sound and remote options. With five variants from Classic to Standard RC + Sound, you can tailor the experience to your display needs. This kit suits builders who enjoy customizing lighting effects and upgrading over time.

Set Cost Ratio18.89%
RGB CapableNo
RemoteAvailable
Price Rank#2 of 4
LeLightGo LED kit for LEGO Diagon Alley 75978 with micro-LEDs
median standard +$15.00(vs Cheapest Starter Kit)

Balanced Performance for the Detail Seeker

$89.99
Starting At
Classic$89.99
Standard$119.99
Remote$139.99
Remote+Sound$164.99

LeLightGo's kit, starting at $89.99, uses modular micro-LEDs to highlight intricate architectural details. With Classic, Standard, Remote, and Remote+Sound variants, it offers flexibility in control and ambiance. This kit is ideal for those who want a reliable, mid-range lighting solution with room to expand.

Set Cost Ratio20%
RGB CapableNo
RemoteAvailable
Price Rank#3 of 4
LightMyBricks LED kit for LEGO Diagon Alley 75978 premium edition
premium ceiling +$135.00(vs Cheapest Starter Kit)

Premium Simplicity for the Discerning Collector

$209.99
Starting At
Standard Version$209.99

LightMyBricks commands the premium tier at $209.99 with a single standard edition, focusing on comprehensive coverage and polished installation. Its wiring architecture is unspecified, but it promises a high-end solution without variant complexity. This is for the LEGO purist who seeks a complete, no-compromise lighting experience.

Set Cost Ratio46.67%
RGB CapableNo
RemoteNone
Price Rank#4 of 4

Lighting kits and display add-ons are custom third-party accessories produced independently. They are not manufactured, sponsored, or endorsed by the LEGO Group.