LEGO Aliya's Baby Sister's Playroom 42645-1
LEGO Aliya's Baby Sister's Playroom (42645-1) is worth about $25 on the secondary market today, against a $18 retail price. It has 125 pieces, belongs to the Friends theme and was released in 2025. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
Kids build social skills through creative play
- Set number
- 42645-1
- Theme
- Friends
- Subtheme
- General
- Year
- 2025
- Pieces
- 125
- Minifigures
- 3
- RRP
- $18
- Market value
- $25
- Released
- 2025
- Retirement
- Retired in 2025
Minifigures in LEGO Aliya's Baby Sister's Playroom
Aliya's Baby Sister's Playroom value by year
From $16 in 2022 to $25 in 2026 so far: +52%. Its highest year was 2026, at $25.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $25 | +33.2% |
| 2025 | $18 | +13.8% |
| 2024 | $16 | +0.0% |
| 2023 | $16 | +0.0% |
| 2022 | $16 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 3 priced minifigures are worth about $9 together, roughly 36% of the set's value — high for Friends sets, so most of what you pay for is the figures (typically 16%).
Frequently asked questions
How much is LEGO Aliya's Baby Sister's Playroom (42645-1) worth?
LEGO Aliya's Baby Sister's Playroom is worth approximately $25 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Aliya's Baby Sister's Playroom retired?
Yes — Aliya's Baby Sister's Playroom (42645-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Aliya's Baby Sister's Playroom gone up in value?
Yes. Aliya's Baby Sister's Playroom launched at $18 and now trades around $25, an increase of 39.0%. See the price history chart for how it got there.
What is the price per piece for Aliya's Baby Sister's Playroom?
At its $18 retail price across 125 pieces, Aliya's Baby Sister's Playroom works out to about $0.144 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Aliya's Baby Sister's Playroom a good investment?
Aliya's Baby Sister's Playroom currently trades 39.0% above its $18 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Aliya's Baby Sister's Playroom so expensive?
Aliya's Baby Sister's Playroom was released in 2025 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.