Cat Birthday Party & Tree House (42666)
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Description
Discover a paw-some building kit for girls, boys and cat-lovers aged 6 and up. The LEGO® Friends Cat Birthday Party & Tree House (42666) toy comes with 2 minidolls, 5 cat figures and lots of accessories for imaginative play packed with sweet kitty moments.
This fun toy sets the scene for Churro’s birthday party. 4 of Churro’s feline friends are here too, plus LEGO Friends characters Leo and Paisley. Explore the fun details, including birthday presents, banners and cat-shaped balloons. Kids will love guiding the pets around the cat tree house, where there’s a fish-shaped piñata, a cat toy, cat grass, a water fountain and litter box. Then it’s time for the cats to sit at the rotating table to enjoy Churro’s birthday cake. With so many ways to play with this animal playset, kids can tell a different friendship story every time.
Discover more exciting creative toys (sold separately) in the LEGO Friends universe. This LEGO set comes with the LEGO Builder app for intuitive building.
Features
- 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
Frequently Asked Questions about Cat Birthday Party & Tree House
What is the best price for LEGO Cat Birthday Party & Tree House (Set 42666)?
The best current price for LEGO Cat Birthday Party & Tree House (Set #42666) is £19.99 at Amazon UK. This is £5.00 cheaper than the official LEGO RRP of £24.99. Price last verified on 21 January 2026.
How much can I save on LEGO Cat Birthday Party & Tree House?
You can save £5.00 (20% off) on LEGO Cat Birthday Party & Tree House by buying from Amazon UK instead of LEGO.com. The official RRP is £24.99, but you can get it for just £19.99. Browse more top discounts.
How many pieces are in LEGO set 42666?
LEGO Cat Birthday Party & Tree House (Set #42666) contains 321 pieces. At the best available price of £19.99, that works out to approximately 6.2p per piece.
What age is LEGO Cat Birthday Party & Tree House suitable for?
LEGO Cat Birthday Party & Tree House (Set #42666) is recommended for ages 6+. This set is part of the LEGO Friends theme. View all Friends sets and deals.
Where can I find the building instructions for LEGO Cat Birthday Party & Tree House?
You can download the official building instructions for LEGO Cat Birthday Party & Tree House (Set #42666) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.
Where can I buy LEGO Cat Birthday Party & Tree House in the UK?
Is LEGO Cat Birthday Party & Tree House on sale right now?
Yes! While not on sale at LEGO.com, you can get LEGO Cat Birthday Party & Tree House for £19.99 at Amazon UK - that's 20% below the official RRP of £24.99. Browse more best offers.
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