Retailer prices for 40021 are sorted by the latest lowest price.
Retailer pricesPrice history 40021
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 1 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 1 Dutch retailers, 15 Dec 2025 – 9 Feb 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock | |
| €17,95 | Bol.com | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Signal is mixed. Small movements are more likely than a big drop.
What to know about LEGO 40021 before you buy.
Build a spooky, crawly Halloween!
All about this set
Background, build experience, collector context, and buying notes in one story.
Build a spooky, crawly Halloween!
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Plates Special
![Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] (6019)](https://images.bricksdeal.com/parts/6019-0-c9705621a8b1.jpg)
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]
Part ID 6019 · Black
Qty 32
![Plate Special 1 x 2 with Handle on End [Closed Ends] (60478)](https://images.bricksdeal.com/parts/60478-0-64aa75cc9d6d.jpg)
Plate Special 1 x 2 with Handle on End [Closed Ends]
Part ID 60478 · Black
Qty 8
Plate Special 2 x 2 with Bar Frame Octagonal
Part ID 30033 · White
Qty 2
Plate Special 1 x 2 with 1 Stud with Groove (Jumper)
Part ID 3794b · Dark Bluish Gray
Qty 1
Plates Round Curved and Dishes
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)
Part ID 4032a · Black
Qty 2
Plate Round 4 x 4 with Pin Hole
Part ID 60474 · Black
Qty 2
![Dish 4 x 4 Inverted [Radar] (3960)](https://images.bricksdeal.com/parts/3960-0-ddc2a883f3b1.jpg)
Dish 4 x 4 Inverted [Radar]
Part ID 3960 · Black
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Red
Qty 1
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Red · Spare
Qty 1
Plates
Plate 2 x 4
Part ID 3020 · Black
Qty 1
Plate 2 x 3
Part ID 3021 · Black
Qty 1
Plate 2 x 2
Part ID 3022 · Black
Qty 1
Plate 1 x 2
Part ID 3023 · Red
Qty 1
Tiles Round and Curved
Tile Round 2 x 2 with Bottom Cross
Part ID 4150 · Black
Qty 1
Retailer reviews
Summarized retailer review data when available.
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 37 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Other sets from the same theme for price comparison.
Quick answers about price, stock and set data.
