Cat Birthday Party & Tree House
retail price
$39.99
best price
$29.97
-$10.02
This is the lowest price we've ever seen!
This set is 25% off - watch it to get notified of even bigger drops
Current Prices
Best Buy Canada
Best PriceBright Bean
Castle Toys
LEGO★
Playvalue Toys
Well.ca
Indigo
About LEGO Cat Birthday Party & Tree House
Friends characters Leo and Paisley celebrate with their feline companions in this 321-piece cat-themed building set. The centrepiece is a detailed cat tree house featuring multiple levels for play, complete with a fish-shaped piñata containing hidden treats, interactive cat toys, fresh cat grass, and a working water fountain system.
The set includes 2 minidolls and 5 cat figures, allowing for varied storytelling scenarios. Leo and Paisley can host elaborate birthday celebrations using the included buildable cake scene, complete with candle, wrapped gifts, and festive decorations. Cat-shaped balloons, colourful banners, birthday hats, and special cat treats add authentic party atmosphere to the build.
Interactive Features
The tree house design encourages active play with its multi-level structure where cats can climb, rest, and play. Each level offers different activities, from the treat-dispensing piñata to the refreshing water feature, creating realistic pet care scenarios.
The main tree house model measures over 18 cm high, 16 cm wide, and 10 cm deep, providing substantial play space while remaining compact enough for bedroom display. Suitable for builders aged 6 and up, the set combines construction challenges with imaginative role-play opportunities centred around friendship and pet care themes.
Where to Buy LEGO Cat Birthday Party & Tree House for the Best Price
We've been tracking prices for this set since October 2026. The recommended retail price is $39.99. It's currently available from 7 retailers, with Best Buy Canada offering the best price at $29.97, which is 25% below RRP. The lowest price we've ever recorded was $29.97 at Best Buy Canada in October 2026, 25% off RRP. Over its tracked history, prices have ranged from $29.97 to $40.00. This set is expected to retire end of this year, so prices may increase as availability decreases.
Set Details
- Set Number
- 42666
- Pieces
- 321
- Theme
- Friends
- RRP
- $39.99
- Best Price
- $29.97
- Price per Piece
- 0.09p






