Trafalgar Square
21045-1 Architecture 2019 1197 parts 1.5% catalog rarity Advanced
The LEGO Architecture 21045 Trafalgar Square set recreates London's historical landmark with 1197 pieces. This detailed interpretation showcases the National Gallery, complete with its columned facade and distinctive domed roof. The rear sections of the gallery structure are designed to be removed, granting access to a detailed interior featuring a brick-built statue and paintings. Central to the square is Nelson's Column, accurately flanked by its four iconic lions, alongside the famous square fountains and four sculpture plinths. Tree-lined borders, ornate lampposts, two classic London buses, and two black cabs populate the tiled baseplate, which depicts the square and surrounding roads. A decorative nameplate completes the display model, offering a scaled representation of the British capital's heart.
21045-1
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Parts Inventory
Showing the first 12 rows of the parts list (1197 pieces in total). The full list loads automatically.
| Part | Qty | LEGO price each |
|---|---|---|
| 3× | €0,12 | |
| 6× | €0,06 | |
| 2× | €0,06 | |
| 8× | €0,13 | |
| 11× | €0,06 | |
| 11× | €0,06 | |
| 1× | €0,06 | |
| 8× | €0,06 | |
| 12× | €0,06 | |
| 4× | €0,06 | |
| 5× | €0,12 | |
| 2× | €0,07 |
Catalog rarity
How common are the parts in Trafalgar Square?
3 of 205 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.
Theme average
2.8%
All sets
6.7%
Least common in our catalog
More Architecture sets
Browse more LEGO Architecture sets related to Trafalgar Square, including models from 2019 and other sets in the same theme.
Build DNA
Parts inventory insights for Trafalgar Square
1,197 pieces puts this build +21% against the average Architecture set and +191% against the average 2019 release.

Vs average Architecture set
Average Architecture set: 988 pieces across 66 other sets.
Vs average 2019 set
Average 2019 set: 412 pieces across 448 other sets.
Color profile
Dominant color
White
Unique parts
9.9 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Plate 1 x 1
170xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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