LEGO 42666 Cat Birthday Party & Tree House - Friends
Discover a paw-some building kit for girls, boys and cat-lovers aged 6 and over. 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 tray. 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.
Discover a paw-some building kit for girls, boys and cat-lovers aged 6 and over. 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 tray. 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.
Discover a paw-some building kit for girls, boys and cat-lovers aged 6 and over. 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 tray. 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.
Discover a paw-some building kit for girls, boys and cat-lovers aged 6 and over. 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 tray. 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.
in 35 offers
The lowest price for LEGO 42666 Cat Birthday Party & Tree House - Friends right now is $32.76 at BricksDirect.com, compared across 28 retailers.
The all-time low was $28.46 on 18 Apr 2026 — today's price is 15% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 7 June 2026.
Last updated at 07/06/2026 12:30:49
LEGO Friends Cat Birthday Party & Tree House 42666 Building Kit, Imaginative Pretend Play, Kids’ Toy Idea for Girls and Boys Aged 6 Years Old and Up,
Free delivery
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LEGO 42666 Cat Birthday Party & Tree House
LEGO Cat Birthday Party Set 42666
Delivery $34.15
LEGO Friends Cat Birthday Party & Tree House 42666
Delivery $9.99
Friends Cat Birthday Party & Tree House 42666 | LEGO
Delivery $9
LEGO Friends Cat Birthday Party 42666
Delivery between 9–15 June $9.70
LEGO Friends - Cat Birthday Party and Tree House - 42666
Delivery $103
LEGO Friends Cat Birthday Party & Tree House (42666) for Kids 6 and Up - 2 Minidolls & 5 Cat Figures
Delivery $11.95
LEGO Friends Cat Birthday Party & Tree House Set (42666)
Friends - Cat Birthday Party & Tree House (42666)
Delivery $12.95
| Number of pieces | 321 |
| Assembly Required | Yes |
| Material Type(s) | Plastic |
| Release date | 1 June 2025 |
| Product dimensions | 26.2 x 19.1 x 6.1 cm; 433 Grams |
LEGO Friends Cat Birthday Party & Tree House 42666 Building Kit, Imaginative Pretend Play, Kids’ Toy Idea for Girls and Boys Aged 6 Years Old and Up,
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
LEGO 42666 Cat Birthday Party & Tree House
LEGO Cat Birthday Party Set 42666
Delivery $34.15
LEGO Friends Cat Birthday Party & Tree House 42666
Delivery $9.99
Friends Cat Birthday Party & Tree House 42666 | LEGO
Delivery $9
| Number of pieces | 321 |
| Assembly Required | Yes |
| Material Type(s) | Plastic |
| Release date | 1 June 2025 |
| Product dimensions | 26.2 x 19.1 x 6.1 cm; 433 Grams |