Price incorrect? Or extremely expensive.
Why so expensive?
Retailer prices for 10521 are sorted by the latest lowest price.
Retailer pricesPrice history 10521
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 |
|---|---|---|---|
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €39,99 | Bol.com | In stock | |
| €29,99 | Bol.com | In stock | |
| €29,99 | Bol.com | In stock | |
| €29,99 | 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.
10521 by the numbers: price, stock and history.
Help grandma care for the Baby Calf! Help grandma look after the cute Baby calf and keep it happy and healthy. Your child will have fun putting the big, brightly colored LEGO® DUPLO® bricks together and enjoy playing with this farmyard-themed set. It also makes a great opportunity to learn about animals and what they need. Includes a grandma DUPLO figure. * Includes a grandma LEGO® DUPLO® figure * Features a milk bottle and feeding tray, decorated brick, calf, flower and additional bricks * Decorated brick has printed mice to stimulate creative play * Role play between grandma and the calf starts young minds thinking about what animals need to live * LEGO® DUPLO® products are fun and safe for younger hands * Makes an ideal addition to any DUPLO town collection * Grandma figure stands over 2” (7cm) tall * Calf stands over 1” (5cm) tall
All about this set
Background, build experience, collector context, and buying notes in one story.
Help grandma care for the Baby Calf! Help grandma look after the cute Baby calf and keep it happy and healthy. Your child will have fun putting the big, brightly colored LEGO® DUPLO® bricks together and enjoy playing with this farmyard-themed set. It also makes a great opportunity to learn about animals and what they need. Includes a grandma DUPLO figure. * Includes a grandma LEGO® DUPLO® figure * Features a milk bottle and feeding tray, decorated brick, calf, flower and additional bricks * Decorated brick has printed mice to stimulate creative play * Role play between grandma and the calf starts young minds thinking about what animals need to live * LEGO® DUPLO® products are fun and safe for younger hands * Makes an ideal addition to any DUPLO town collection * Grandma figure stands over 2” (7cm) tall * Calf stands over 1” (5cm) tall
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.
Duplo, Quatro and Primo
Duplo Brick 2 x 2
Part ID 3437 · Lime
Qty 3
Duplo Brick 2 x 2 with Two Mice Print
Part ID 3437pr0030 · Bright Light Orange
Qty 1
Duplo Container Box 2 x 4 (Horse Trough New Style)
Part ID 61896 · Dark Azure
Qty 1
Duplo Plant, Flower with 1 Top Stud
Part ID 6510 · Red
Qty 1
Duplo Animal Cow Baby (Calf) Front Leg Forward with White Blaze Print
Part ID 88379pr0001 · Reddish Brown
Qty 1
Duplo Baby Bottle with Cow and Scale Lines Print
Part ID 98196pr0002 · White
Qty 1
Non-Buildable Figures (Duplo, Fabuland, etc)
Duplo Figure Bob / Pageboy Hair Gray, with Magenta Legs, Medium Blue Top with Flower, Blue Eyes, Glasses
Part ID 75121pr0003 · Medium Blue
Qty 1
Retailer reviews
Summarized retailer review data when available.
Why so expensive?
This item is a fun addition to 'the first farm' by Duplo.
Great playset and just as durable as all Duplo! Remains a fun toy that doesn't break.
Great kids really liked it.
I think it's very beautiful, it's nice to teach children how to interact with and get to know animals...
My grandson was immediately playing with it.
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 26 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.
Quick answers about price, stock and set data.