LEGO dropped the Aliya's Baby Sister's Playroom (42645) in 2025 as part of the Friends collection — a bite-sized build at 125 pieces with a retail price of $17.99. It comes packed with 3 minifigs — always a nice bonus for collectors.
The $0.144 per piece price point is on the premium side, though the build quality matches.
The Aliya's Baby Sister's Playroom is a solid entry in the Friends range — nothing flashy, but well-built and fun.
Key Features
125 pieces — Quick, focused build that's fun without the time commitment
3 minifigures — Collectible characters from Friends
$0.144 per piece — In line with Friends pricing
2025 release — Part of LEGO's modern era with strong design standards
Theme Background
LEGO's Friends theme is a powerhouse in the LEGO lineup with serious collector following, and the Aliya's Baby Sister's Playroom is a 2025 release that lands in a great entry point into the Friends theme at $17.99. Price-per-piece comes in at $0.144, which is reasonable for what Friends typically runs.
For collectors and investors, Friends remains a reliable theme to watch. Sets at this price point tend to find their audience, especially once they start approaching retirement.
Why This Set Is Special
Strong part-out value at 1.8x. Parts are worth $32.75 vs $17.99 retail (1.8x ratio). Theme average is 1.6x.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO Aliya's Baby Sister's Playroom (42645)?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) contains 125 pieces, making it a smaller set."}, {"q": "What minifigures come with the LEGO Aliya's Baby Sister's Playroom (42645)?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) includes 3 minifigures. Minifigures are a key value driver for LEGO sets \u2014 exclusive or rare minifigures can appreciate significantly in value on their own, sometimes commanding high prices on the secondary market."}, {"q": "How much does the LEGO Aliya's Baby Sister's Playroom (42645) cost?", "a": "The retail price (MSRP) for the LEGO Aliya's Baby Sister's Playroom (42645) is $17.99 in the United States. Regional pricing is \u00a314.99 in the UK, CA$22.99 in Canada, \u20ac17.99 in Europe. This works out to $0.14 per piece. The higher price-per-piece reflects the use of specialized or larger elements, licensed branding, or premium packaging."}, {"q": "Is the LEGO Aliya's Baby Sister's Playroom (42645) a good investment?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) shows moderate investment potential based on several factors. Friends sets have historically been among the best-performing themes for post-retirement appreciation. As with any LEGO investment, buying at or below retail price maximizes potential returns. Use the BrickBucks price tracker to find the best entry point."}, {"q": "How big is the LEGO Aliya's Baby Sister's Playroom (42645)?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) measures approximately 19.10cm \u00d7 14.10cm \u00d7 4.60cm (W\u00d7H\u00d7D). It makes for a great display piece that won't take up too much shelf space."}, {"q": "Is the LEGO Aliya's Baby Sister's Playroom (42645) still available?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) retired on December 31, 2025 and is no longer available at retail. You can find this set on secondary markets including Amazon, eBay, and BrickLink. Retired Friends sets often trade at a premium above their original retail price, with demand typically increasing over time as sealed inventory decreases."}, {"q": "Where can I buy the LEGO Aliya's Baby Sister's Playroom (42645)?", "a": "The LEGO Aliya's Baby Sister's Playroom (42645) is retired and only available on secondary markets. Check Amazon, eBay, and BrickLink for current listings. Use the BrickBucks price tracker to compare prices across retailers and find the best deal."}]
