Buy Now 90% confidence
At roughly 40%+ off its typical MSRP, this is an unusually strong discount for a relatively new LEGO Ideas set. Prices this low are rare outside of clearance or short-term promos.
LEGO Ideas Evolution of STEM 21355 Building Set (879 Pieces)

target.com · LEGO

LEGO Ideas Evolution of STEM 21355 Building Set (879 Pieces)

$46.00 $59.80 ↓23%

This LEGO Ideas Evolution of STEM set (21355) is an 879‑piece display build celebrating science and innovation, featuring multiple scientist minifigures. At $45.99, this is a steep discount from its usual ~$80 price and one of the best prices seen since launch. Free shipping or store pickup makes it easy to grab before the sale ends.

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Price History

90-day price tracking across retailers

Price History

90 days
Current
$46
Lowest
$43.7
Highest
$65.78

Current

$46.00

90d Low

$43.70

90d High

$65.78

Community Verdict

208 reviews
90% recommend
Best for

LEGO collectors, educators, and science-themed display fans

Watch out

More of a display model than a play-focused set, which may limit appeal for younger kids.

Pro tip

Check Target Circle offers or RedCard discounts to stack extra savings on top of the sale price.

A standout value on a popular LEGO Ideas set, especially appealing if you like science-themed builds or display models.

Discussion

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Trust Score

High Trust 85
Historic low price Verified
Authorized seller Verified
Honest pricing Verified
Current model Current

True Cost

No surprises
Base price $46.00
Shipping Free

Free shipping or free in-store pickup at Target; sale price is time-limited.

Total $46.00

Deal Info

Retailer target.com
Brand LEGO
Category Kids & Family
Posted 6/22/2026
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