1. Sets
  2. Friends
  3. Pets
3942 LEGO Friends Pets Heartlake Dog Show thumbnail image

3942 LEGO Friends Pets Heartlake Dog Show
Images 6Description 
3942 LEGO Friends Pets Heartlake Dog Show
  • Heartlake Dog Show thumbnail
  • Heartlake Dog Show thumbnail
  • Heartlake Dog Show thumbnail
  • Heartlake Dog Show thumbnail
  • Heartlake Dog Show thumbnail
  • Heartlake Dog Show thumbnail

LEGO 3942 Heartlake Dog Show is a Friends set valued at $26 for new and sealed sets, up 28% from an original retail price of $19.99. The set retired in November 2012 with annual appreciation averaging 3.33% since. On the used market, values range from $10 to $14 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Heartlake Dog Show since June 2016. Very high accuracy
LEGO 3942 Heartlake Dog Show is a Friends Pets set released in 2012, containing 183 pieces and 1 mini-doll figure. The set includes Mia and two puppies, Scarlett and Jacky, along with a dog show layout built around a podium with runway, a grooming and preparation area, and two obstacle elements. Accessories include a trophy with stand, a camera, bows, brushes, a plate, bones, flowers, flags, a seesaw, and a hurdle. It was part of the early Friends range centered on Heartlake City activities and pet-themed builds.

A new and sealed Heartlake Dog Show is currently valued at around $26, with annual growth of 2.2% that is expected to level off to around 1.7% in the coming year. The average used price is $12 for those in good overall condition. New and sealed listings currently range from $26 to $44. Recent market trends show a period of price correction, with values declining over the past year. The set was available for 10 months, from January 2012 to November 2012.
All regions

For Sale (New/Sealed)

 (NL) NEW Box never opened, box has shelfwear due to age $20.22
-21.1%
(US) Friends 3942 Heartlake Dog Show Set - Mia Mini-Doll & Puppy - New Sealed R7
BrickEconomy Choice
$25.69
+0.3%
(US) Amazon listing for Heartlake Dog Show $26.90
+5.0%
(NL) NEW , $27.92
+9.0%
(US) Friends 3942 Heartlake Dog Show Mia New SEALED 2012 Retired Puppies Award $41.99
+63.9%
(US) FRIENDS: Heartlake Dog Show (3942) Sealed Retired Set NISB MINT $44.00
+71.7%
(US) Friends: Heartlake Dog Show (3942) - New In Sealed Box $49.00
+91.3%
(US) Friends HEARTLAKE DOG SHOW 3942 BRAND New Sealed Retired $75.99
+196.6%

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 3942 Heartlake Dog Show.

Mini-doll figures

Heartlake Dog Show contains 1 mini-doll figure. The mini-doll figure is exclusive to this set.
frnd009
Mia
Mia from Friends wearing a light blue top and a medium lavender skirt - frnd009
Exclusive
Value $3.91

Sets in Friends / Pets

42651 Horse and Pet Vet Clinic

Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 428 / 3
Availability Retired
42651 LEGO Friends Horse and Pet Vet Clinic
Retail $49.99
Value ~$49.99

42615 Pet Adoption Day

Theme / Subtheme Friends / Pets
Year 2024
Pieces / Mini-doll figures 400 / 3
Availability Retired
42615 LEGO Friends Pet Adoption Day
Retail $44.99
Value $40.00

42666 Cat Birthday Party & Tree House

Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 321 / 2
Availability Retail
42666 LEGO Friends Pets Cat Birthday Party & Tree House
Retail $29.99
Available at retail

42678 Pet Accessories Van

Theme / Subtheme Friends / Pets
Year 2026
Pieces / Mini-doll figures 237 / 2
Availability Retail
42678 LEGO Friends Pet Accessories Van
Retail $19.99
Available at retail

41698 Pet Playground

Theme / Subtheme Friends / Pets
Year 2022
Pieces / Mini-doll figures 210 / 2
Availability Retired
41698 LEGO Friends Pet Playground
Retail $19.99
Value $24.15
Growth  +20.8%
Annual growth 5.6%

42601 Hamster Playground

Theme / Subtheme Friends / Pets
Year 2024
Pieces / Mini-doll figures 167 / 2
Availability Retired
42601 LEGO Friends Pets Hamster Playground
Retail $19.99
Value $29.99
Growth  +50.0%
Annual growth 11.8%

42679 Heartlake City Bunny Hotel

Theme / Subtheme Friends / Pets
Year 2026
Pieces / Mini-doll figures 161 / 2
Availability Retail
42679 LEGO Friends Pets Heartlake City Bunny Hotel
Retail $19.99
Available at retail

41001 Mia's Magic Tricks

Theme / Subtheme Friends / Pets
Year 2013
Pieces / Mini-doll figures 90 / 1
Availability Retired
41001 LEGO Friends Pets Mia's Magic Tricks
Retail $9.99
Value $12.22
Growth  +22.3%
Annual growth 3.1%

42612 Cat Playground Adventure

Theme / Subtheme Friends / Pets
Year 2024
Pieces / Mini-doll figures 87 / 2
Availability Retired
42612 LEGO Friends Pets Cat Playground Adventure
Retail $10.99
Value $11.74
Growth  +6.8%
Annual growth 4.2%

42640 Guinea Pig Playground

Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 86 / 2
Availability Retired
42640 LEGO Friends Pets Guinea Pig Playground
Retail $9.99
Value $15.00
Growth  +50.2%

41383 Olivia's Hamster Playground

Theme / Subtheme Friends / Pets
Year 2019
Pieces / Mini-doll figures 81 / 1
Availability Retired
41383 LEGO Friends Pets Olivia's Hamster Playground
Retail $9.99
Value $14.60
Growth  +46.1%
Annual growth 4.3%

41029 Stephanie's New Born Lamb

Theme / Subtheme Friends / Pets
Year 2014
Pieces / Mini-doll figures 78 / 1
Availability Retired
41029 LEGO Friends Pets Stephanie's New Born Lamb
Retail $9.99
Value $12.75
Growth  +27.6%
Annual growth 2.0%

3935 Stephanie's Pet Patrol

Theme / Subtheme Friends / Pets
Year 2012
Pieces / Mini-doll figures 73 / 1
Availability Retired
3935 LEGO Friends Stephanie's Pet Patrol
Retail $9.99
Value $15.76
Growth  +57.8%
Annual growth 5.7%

42665 Puppy Playground

Theme / Subtheme Friends / Pets
Year 2025
Pieces / Mini-doll figures 66 / 2
Availability Retail
42665 LEGO Friends Pets Puppy Playground
Retail $9.99
Available at retail

3938 Andrea's Bunny House

Theme / Subtheme Friends / Pets
Year 2012
Pieces / Mini-doll figures 62 / 1
Availability Retired
3938 LEGO Friends Pets Andrea's Bunny House
Retail $9.99
Value $17.44
Growth  +74.6%
Annual growth 3.2%

42635 Dog Grooming Car

Theme / Subtheme Friends / Pets
Year 2024
Pieces / Mini-doll figures 60 / 2
Availability Retired
42635 LEGO Friends Pets Dog Grooming Car
Retail $9.99
Value $14.27
Growth  +42.8%

41396 Puppy Playground

Theme / Subtheme Friends / Pets
Year 2020
Pieces / Mini-doll figures 57 / 1
Availability Retired
41396 LEGO Friends Pets Puppy Playground
Retail $9.99
Value $12.78
Growth  +27.9%
Annual growth 2.9%

30697 Nova's Doghouse Build

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

My Collection

Heartlake Dog Show Reviews

30 ratings
4.6
Collectors
Investors

About Friends Pets

The LEGO Friends Pets subtheme focuses on everyday pet care, adoption, and animal playtime in Heartlake City, spanning from 2012's 3935 Stephanie's Pet Patrol and 3942 Heartlake Dog Show through long-running releases like 41698 Pet Playground, 42615 Pet Adoption Day, and 42666 Cat Birthday Party & Tree House. The line covers hamsters, guinea pigs, cats, dogs, and bunnies with playsets such as 42612 Cat Playground Adventure, 42635 Dog Grooming Car, 42640 Guinea Pig Playground, and 42651 Horse and Pet Vet Clinic. Recent 2026 releases include 42678 Pet Accessories Van and 42679 Heartlake City Bunny Hotel.

Pets was introduced in 2012 and currently consists of 19 sets.
Summary
Friends Pets Heartlake Dog Show set 3942 was released on January 2, 2012, retailing for $20, it has since been retired. New, unopened sets are valued at $26, used ones can be found for $12.
Read more
It's a great day to be a pretty puppy in Heartlake City! Mia is taking her 2 puppies to the annual Heartlake Dog Show. Help her to show them on the podium and runway for the judges! Then, guide them through the obstacle course. If they can finish quickly, Mia's puppies are sure to win a prize! Includes Mia mini-doll figure and 2 puppies. Includes Mia mini-doll figure and 2 puppies, Scarlett and Jacky Features podium with runway, grooming and preparation area, 2 obstacles, trophy with stand and outdoor scenery Accessories include camera, bows, brushes, plate, bones, flowers, seesaw, hurdle and flags Win first prize with Mia's pretty puppies! Wash and groom the puppies in the grooming area! Impress the judges on the podium and runway! Guide the puppies through the obstacle course! LEGO Friends pieces are fully compatible with all LEGO bricks Collect all of the LEGO Friends sets for a whole world of LEGO Friends fun! LEGO mini-dolls are figures made especially for the world of...
Description provided by LEGO©