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LEGO Trafalgar Square

Set #21045 · 2019 · 1,197 pieces · Advanced build

LEGO Trafalgar Square set 21045 instructions

Set Details

Set Number
21045
Name
Trafalgar Square
Year
2019
Pieces
1,197
Complexity
Advanced
Build Time
4-8 hours
Ages
14+
Type
Great for display
LF
LegoFinder Editorial Team·Set data verified 2026·How we research sets

About LEGO Trafalgar Square

LEGO Trafalgar Square (set #21045) is a major set with substantial building depth with 1,197 pieces from the Architecture theme, released in 2019. The Architecture line features scaled replicas of real-world landmarks and skylines. Designed primarily for older teens and adults, this set is built for display with an estimated build time of 4-8 hours.

Set Highlights

  • 1,197 pieces across multiple numbered bags — staged building keeps the process organized.
  • Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
  • Display-focused design — the finished model holds together well on a shelf without support.

Who Is This Set For?

Display & Collection

At 1,197 pieces, the finished model is built for a shelf or desk. Popular among adult fans and collectors who prefer challenging builds over play value.

Multi-Session Build Project

The estimated 4-8 hours build time makes this ideal for spreading across evenings or weekends. A satisfying project that rewards patience.

Gift for Adult LEGO Enthusiasts

One of the most-gifted categories for fans aged 14++. Works well for birthdays, holidays, or as a personal treat for Architecture enthusiasts.

Build Tips

1

Open bags one numbered sequence at a time — LEGO orders them to match the build stages and keeps loose piece counts manageable.

2

Budget 4-8 hours across multiple sessions rather than one sitting. Fatigue leads to missed connections that are hard to trace later.

3

Once built, direct sunlight yellows ABS plastic over time. A display case or UV-filtered shelf glass keeps colors vibrant.

Finding Instructions

Building instructions for LEGO Trafalgar Square (#21045) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.

Trafalgar Square FAQ

Related Reading

More Architecture Sets

See all Architecture →

Also Released in 2019

All 2019 sets →

Similar Build Difficulty

Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.

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