Forecast Model

This represents the expected annual growth (CAGR) based solely on a forecast model.
LEGO 42645 Aliya's Baby Sister's Playroom is a 125 piece Friends set with 2 mini-doll figures released in 2025. It consists of a playroom with two mini-dolls, a baby figure, a crib, a slide, a playmat, a ball pit, a rocking duck, a plush-style piece, and a baby stroller. It features a table with a flip function for mess simulation.

The set is estimated to retire sometime within early and mid 2026. Once retired, the expected annual growth will be close to 3% after the second year, valuing the set between $19 and $20 shortly after it is retired.

For Sale (New/Sealed)

This chart shows the sales listing trends of 42645 Aliya's Baby Sister's Playroom.
(US) Friends Aliya'S Baby Sister'S Playroom Building Toy - 42645
BrickEconomy Choice
$17.96
(US) LEGO Friends Aliya's Baby Sister's Playroom 42645 $17.99
(US) Official LEGO Aliya's Baby Sister's Playroom $17.99
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $22.00
+22.3%
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $22.00
+22.3%
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $27.49
+52.8%
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $27.49
+52.8%
(US) Friends Aliya's Baby Sister's Playroom Building Toy - Pretend Play Set f $27.99
+55.6%
(US) Friends Aliya's Baby Sister's Playroom Building Toy - Pretend Play Set f $27.99
+55.6%
(US) Friends Aliya's Baby Sister's Playroom 42645 $27.99
+55.6%
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $27.99
+55.6%
(US) Friends Aliya's Baby Sister's Playroom 42645 $27.99
+55.6%
(US) LEGO Friends Aliya's Baby Sister's Playroom Building Set 42645 NEW $27.99
+55.6%

Mini-doll figures

Aliya's Baby Sister's Playroom contains the following mini-doll figures. 2 of the mini-doll figures are exclusive to this set.

Sets in Friends

Theme / Subtheme Friends / Heartlake City
Year 2025
Pieces / Mini-doll figures 2,040 / 7
Availability Retail
42670 LEGO Friends Heartlake City Residential and Shopping Street
Retail $169.99
Available at retail
Theme / Subtheme Friends / Great Outdoors
Year 2025
Pieces / Mini-doll figures 1,161 / 4
Availability Retail (Retiring soon)
42669 LEGO Friends Great Outdoors Beekeepers' House and Flower Garden
Retail $89.99
Available at retail
Retiring soon
Theme / Subtheme Friends / Airport
Year 2025
Pieces / Mini-doll figures 958 / 8
Availability Retail
42656 LEGO Friends Heartlake City Airport and Airplane
Retail $99.99
Available at retail
Theme / Subtheme Friends / Heartlake City
Year 2025
Pieces / Mini-doll figures 896 / 4
Availability Retail
42655 LEGO Friends Heartlake City Restaurant and Cooking School
Retail $79.99
Available at retail
Theme / Subtheme Friends / Great Outdoors
Year 2025
Pieces / Mini-doll figures 778 / 3
Availability Retail
42663 LEGO Great Outdoors Friendship Camper Van Adventure
Retail $59.99
Available at retail
Theme / Subtheme Friends / Tree Houses
Year 2025
Pieces / Mini-doll figures 701 / 4
Availability Retail
42652 LEGO Friendship Tree House Hangout
Retail $69.99
Available at retail
Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 428 / 3
Availability Retail
42651 LEGO Friends Horse and Pet Vet Clinic
Retail $49.99
Available at retail
Theme / Subtheme Friends / Heartlake City
Year 2025
Pieces / Mini-doll figures 376 / 3
Availability Retail
42649 LEGO Friends Heartlake City Candy Store
Retail $29.99
Available at retail
Theme / Subtheme Friends / Heartlake City
Year 2025
Pieces / Mini-doll figures 375 / 3
Availability Retail
42650 LEGO Friends Heartlake City Pet Accessories Shop
Retail $39.99
Available at retail
Theme / Subtheme Friends / Heartlake City
Year 2025
Pieces / Mini-doll figures 347 / 3
Availability Retail
42662 LEGO Friends Heartlake City Hair Salon and Accessories Store
Retail $44.99
Available at retail
Theme / Subtheme Friends / Bedrooms
Year 2025
Pieces / Mini-doll figures 222 / 2
Availability Retail
42646 LEGO Friends Bedrooms Autumn's Room
Retail $19.99
Available at retail
Theme / Subtheme Friends / Bedrooms
Year 2025
Pieces / Mini-doll figures 199 / 2
Availability Retail
42647 LEGO Friends Bedrooms Paisley's Room
Retail $19.99
Available at retail
Theme Friends
Year 2025
Pieces / Mini-doll figures 188 / 2
Availability Retail
42672 LEGO Friends Creative Beach and Travel Suitcase
Retail $29.99
Available at retail
Theme / Subtheme Friends / Beach
Year 2025
Pieces / Mini-doll figures 113 / 2
Availability Retail
42641 LEGO Friends Surfing Dogs and Scooter Adventure
Retail $14.99
Available at retail
Theme Friends
Year 2025
Pieces / Mini-doll figures 110 / 2
Availability Retail
42643 LEGO Friends Cotton Candy Stand and Scooter
Retail $9.99
Available at retail
Theme / Subtheme Friends / Traffic
Year 2025
Pieces / Mini-doll figures 92 / 2
Availability Retail
42644 LEGO Friends Heartlake City Ice Cream Truck
Retail $19.99
Available at retail
Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 86 / 2
Availability Retail
42640 LEGO Friends Pets Guinea Pig Playground
Retail $9.99
Available at retail
Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 50 / 1
Availability Retail
30697 LEGO Friends Pets Nova's Doghouse Build
Retail $4.99
Available at retail
Theme / Subtheme Friends / Park
Year 2025
Pieces / Mini-doll figures 33 / 1
Availability Retail
30696 LEGO Friends Park Autumn's Waffle Stand
Retail $5.99
Available at retail
Theme / Subtheme Friends / Magazine Gifts
Year 2025
Pieces 21
Availability Retired
562501 LEGO Friends Aira at Veterinary Station
Value $4.06
Annual growth 9.2%
This pretend-play toy set for kids aged 6 years old and up lets girls and boys create endless babysitting friendship stories. The LEGO Friends Aliyas Baby Sisters Playroom (42645) creative toy set comes with 2 LEGO Friends mini-dolls, a baby figure and lots of accessories for role play.

Inspire kids to build the playroom, where Aliya and Liann are caring for Aliyas baby sister, Amalia. Theres everything kids need to create friendship stories. They can feed the baby at the table a clever flip function shows just how much mess a baby can make at mealtimes! When its time for a nap, theres a crib for Amalia. Playtime is catered for too, with a slide, playmat, ball pit, a rocking duck ride and a cute plushie-style LEGO piece. Then the friends take Amalia for a walk in the baby stroller toy.

Discover other building playsets (sold separately) in the LEGO Friends universe, with lots more friendship stories to uncover. This set comes with the LEGO Builder app for intuitive...
Description provided by LEGO©