LegoLEGO® Friends
Lego® Cat Birthday Party & Tree House
- Set #
- 42666
- Parts
- 321
- Minifigs
- 2
- Price/part
- 6.8 ct
- Release
- 2025
- Age
- 6+
Price comparison · 7 Offers · final prices incl. shipping
Where is Cat Birthday Party & Tree House cheapest right now?
7 shops checkedIndependently sorted
Displayed prices may differ from actual offers. We update prices regularly, but offers on the linked pages may change quickly. Please note that we earn a commission on some qualified purchases made through partner links (e.g., from Amazon, eBay, or other shops). This only applies to links used within affiliate programs. There are no additional costs for you, and we also provide non-affiliate links to ensure a comprehensive overview of available offers.
New
26,39€BEST PRICE
26,39 €Newincl. 4,49 € shipping · 2 to 3 daysBEST PRICEincl. 4,49 € shipping
New27,94€27,94 €Newincl. 3,95 € shippingincl. 3,95 € shipping
New28,89€28,89 €Newincl. 7,90 € shipping · 2 to 3 daysincl. 7,90 € shipping
New30,79€30,79 €Newincl. 4,80 € shipping · 1 to 3 daysincl. 4,80 € shipping
New31,35€31,35 €Newincl. 3,00 € shipping · 11 to 13 daysincl. 3,00 € shipping
Price check · in short
What does Lego® Cat Birthday Party & Tree House (42666) currently cost?
On VERObricks, Lego® Cat Birthday Party & Tree House (Set No. 42666) is currently listed by 7 shops across 7 offers. The lowest new price in the VERObricks comparison is 26,39 € (alza). Other new offers range up to 45,23 €. The manufacturer's RRP is 29,99 €. The current price per brick is 8,2 cents.
Notes on prices & affiliate links
Displayed prices may differ from actual offers. We update prices regularly, but offers on the linked pages may change quickly. Please note that we earn a commission on some qualified purchases made through partner links (e.g., from Amazon, eBay, or other shops). This only applies to links used within affiliate programs. There are no additional costs for you, and we also provide non-affiliate links to ensure a comprehensive overview of available offers.
Price history · Price development
Has Cat Birthday Party & Tree House ever been cheaper?
- Current
- 26,39 €
- New, best shop
- 30-day low
- 25,39 €
- on 06. Nov. 2026 · alza
- Usual at dealers
- 26,39 €
- 90-day median, final price
- All-time low
- 25,39 €
- on 06. Nov. 2026 · alza
Loading chart …
| Date | New | Shop |
|---|---|---|
| 09. Nov. 2026 | 26,39 € | alza |
| 06. Nov. 2026 | 25,39 € | alza |
| 22. Sept. 2026 | 26,39 € | alza |
| 19. Sept. 2026 | 27,94 € | thalia.de |
| 11. Sept. 2026 | 28,89 € | alternate.de |
| 26. Aug. 2026 | 27,94 € | thalia.de |
| 14. Aug. 2026 | 28,89 € | alternate.de |
| 29. Juli 2026 | 27,94 € | thalia.de |
| 28. Juli 2026 | 29,62 € | proshop |
| 21. Juli 2026 | 29,19 € | alternate.de |
| 15. Juli 2026 | 27,94 € | thalia.de |
| 13. Juli 2026 | 29,19 € | alternate.de |
| 23. Juni 2026 | 27,94 € | thalia.de |
| 22. Juni 2026 | 29,19 € | alternate.de |
| 18. Juni 2026 | 27,94 € | thalia.de |
| 12. Juni 2026 | 29,17 € | proshop |
| 20. Mai 2026 | 27,94 € | thalia.de |
| 07. Mai 2026 | 29,03 € | proshop |
| 17. Apr. 2026 | 29,19 € | alternate.de |
| 14. Apr. 2026 | 27,94 € | thalia.de |
| 13. Apr. 2026 | 29,19 € | alternate.de |
| 01. Apr. 2026 | 29,03 € | proshop |
| 25. März 2026 | 27,94 € | thalia.de |
| 19. März 2026 | 29,03 € | proshop |
| 09. März 2026 | 27,94 € | thalia.de |
| 03. März 2026 | 29,03 € | proshop |
| 25. Feb. 2026 | 27,94 € | thalia.de |
| 24. Feb. 2026 | 29,19 € | alternate.de |
| 16. Feb. 2026 | 27,94 € | thalia.de |
| 12. Feb. 2026 | 29,19 € | alternate.de |
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Details
Set details
At a glance
- Brand
- Lego
- Partcount
- 321
- Minifigures
- 2
- 1 excl.
- Age
- 6+
- Release / EOL
- 2025 – 2026
- RRP
- 29,99 €
- Price per Part
- 6.8 ct
- good value
Building instructionsPDF from the manufacturer
Technical data9 entries
Product
- Name
- Cat Birthday Party & Tree House
Dimensions
- Product weight
- 0,2 kg
- Packaging width
- 26,2 cm
- Packaging height
- 6,1 cm
- Packaging length
- 19,1 cm
- Packaging weight
- 0,5 kg
Identification
- MFR
- 42666
- EAN
- 57020177837585702017949581
- SKU
- 42666
DescriptionManufacturer text
A creative toy building set filled with feline fun for girls, boys and cat-lovers aged 6 and up, with 2 minidolls and 5 cat figures.
It’s Churro the cat’s birthday and you’re invited to join the celebrations! Leo and Paisley are here too, plus 4 of Churro’s kitty friends, who have brought gifts for the birthday cat. The pets play in the cat tree house, where there’s a fish-shaped piñata, a cat toy, cat grass and a water fountain. Then the cats sit at the rotating table to enjoy Churro’s birthday cake. Happy birthday Churro!
A building kit for cat-loving kids – This LEGO® Friends Cat Birthday Party & Tree House toy for girls and boys aged 6 and up comes with 2 minidolls and 5 cat figures for imaginative play
Cat tree-house toy – Kids can have lots of fun playing with the 5 cats on the cat tree house, which features a fish-shaped piñata with treats inside, a cat toy, cat grass and a water fountain
Create stories with the LEGO® Friends characters – This pretend-play set comes with Leo and Paisley minidolls, 5 cat figures, a buildable cat tree house and a buildable birthday cake scene
Cat-themed accessories – Kids can create endless fun stories using the accessories, which include a birthday cake with candle, gifts, banners, cat-shaped balloons, a birthdayhat and cat treats
A gift for kids who love cats – This animal toy set makes a great creative gift for girls, boys and cat-lovers aged 6 and up or for anyone who would love to build a cat-themed birthday scene
Online show – Inspire more creative-play ideas with other sets (sold separately) and the LEGO® Friends: The Next Chapter online show, where kids can get to know the characters of Heartlake City
Let’s tell a friendship story – The LEGO® Friends range of building sets lets kids explore different friendship moments, with lots of opportunities to create their own imaginative stories
Measurements – 321-piece set with a main model measuring over 7 in. (18 cm) high, 6 in. (16 cm) wide and 4 in. (10 cm) deep
Minifigures
Which minifigures are in Cat Birthday Party & Tree House?
The set contains 2 minifigures, 1 of them exclusive to this set.
Paisley - Bright Light Yellow Top, Medium Lavender Skirt
Leo - Red Shirt, Yellow Shorts
Gallery
Product images (12)
Looks alike
Looks similar
FAQ
Frequently Asked Questions
Where can you buy Lego® Cat Birthday Party & Tree House?
New stock is available at alternate.de, alza, brickmo, thalia.de, brickstore, galaxus-de, toymi (7 shops). VERObricks compares all prices in real time and always shows you the lowest offer — for new and used stock, with shipping cost comparison.
Was Cat Birthday Party & Tree House ever cheaper? Price history & all-time low
VERObricks tracks the price history of Lego® Cat Birthday Party & Tree House across all shops. The historical low for new is 24,21 €. The highest observed new price was 32,14 € — a range of 7,93 €. Currently, the price is 2,18 € (9%) above the all-time low. The price trend is currently downward — the price has fallen recently. With the VERObricks price alert you'll be notified instantly when the price reaches your target.
What is Lego® Cat Birthday Party & Tree House? Contents, parts & details
Lego® Cat Birthday Party & Tree House is a set by Lego from the "LEGO® Friends" theme (Set No. 42666, EAN: 5702017783758). According to the VERObricks database, the set includes 321 parts, 2 minifigures, Recommended age 6+. Manufacturer description: "A creative toy building set filled with feline fun for girls, boys and cat-lovers aged 6 and up, with 2 minidolls and 5 cat figures." On VERObricks you can find the set in these categories: LEGO® Friends, Animals, Holidays, Kids.
Which minifigures are included in Lego® Cat Birthday Party & Tree House?
According to the Rebrickable inventory, Lego® Cat Birthday Party & Tree House contains 2 minifigures: Paisley - Bright Light Yellow Top, Medium Lavender Skirt, Leo - Red Shirt, Yellow Shorts. 1 figure is exclusive to this set: Leo - Red Shirt, Yellow Shorts. Exclusive figures often keep a set's value stable after retirement; see the price history and used offers above.
When was Lego® Cat Birthday Party & Tree House released and how long will it stay available?
Lego® Cat Birthday Party & Tree House was released in June 2025. According to the manufacturer's planning, the set retires at the end of 2026 (EOL, end of life). While it is in regular stock, keep an eye on the price history; after retirement, new copies come from remaining stock only and prices often rise. The official building instructions are available as 2 PDF files directly from the manufacturer, linked in the set details section.
Is Cat Birthday Party & Tree House worth it at the current price?
At the current VERObricks best price of 26,39 € for 321 parts, that works out to 8,2 cents per part. That's in the typical range for Lego sets. Licensed themes and special parts can raise the price per part.