In 2012, LEGO released 45 Duplo sets across 10 subthemes, all of these sets have been retired. Subthemes for that year included Accessories, Building Sets, Cars, Disney, Disney Princess, Farm, Fire, My First, Value Packs, and Zoo. For that year, the total price of all retail sets cost $1,020, today those sets are valued around $3,842, a growth of 277%.
Most valuable 2012 LEGO Duplo set
6157 The Big Zoo $385.64
Highest growth 2012 Duplo set
4623 Pink Brick Box +1054.44%
Largest 2012 LEGO Duplo set
4629 Build & Play Box 150 pieces
Most owned 2012 Duplo set
6154 Cinderella's Castle
45 sets

4623 Pink Brick Box

Theme / Subtheme Duplo / Building Sets
Year 2012
Pieces 30
Availability Retired
4623 LEGO Duplo Pink Brick Box
Retail $14.99
Value $173.05
Growth  +1054.4%
Annual growth 10.6%

4624 Brick Box Green

Theme / Subtheme Duplo / Building Sets
Year 2012
Pieces 31
Availability Retired
4624 LEGO Duplo Brick Box Green
Retail $14.99
Value $33.31
Growth  +122.2%
Annual growth 7.4%

4627 Fun With Bricks

Theme Duplo
Year 2012
Pieces 85
Availability Retired
4627 LEGO Duplo Fun With Bricks
Retail $29.99
Value $127.12
Growth  +323.9%
Annual growth 7.1%

4629 Build & Play Box

Theme / Subtheme Duplo / Building Sets
Year 2012
Pieces 150
Availability Retired
4629 LEGO Duplo Build & Play Box
Retail $59.99
Value $168.32
Growth  +180.6%
Annual growth 5.5%

4631 My First Build

Theme / Subtheme Duplo / My First
Year 2012
Pieces / Duplo figures 59 / 1
Availability Retired
4631 LEGO Duplo My First Build
Retail $24.99
Value $33.39
Growth  +33.6%
Annual growth 3.8%

4632 Building Plates

Theme / Subtheme Duplo / Accessories
Year 2012
Pieces 3
Availability Retired
4632 LEGO Duplo Building Plates
Retail $9.99
Value $16.21
Growth  +62.3%
Annual growth 5.6%

6132 Red

Theme / Subtheme Duplo / Cars
Year 2012
Pieces 13
Availability Retired
6132 LEGO Duplo Cars Red
Retail $14.99
Value $72.85
Growth  +386.0%
Annual growth 6.8%

6133 Race Day

Theme / Subtheme Duplo / Cars
Year 2012
Pieces 26
Availability Retired
6133 LEGO Duplo Cars Race Day
Retail $24.99
Value $44.36
Growth  +77.5%
Annual growth 3.0%

6134 Siddeley Saves The Day

Theme / Subtheme Duplo / Cars
Year 2012
Pieces 34
Availability Retired
6134 LEGO Duplo Cars Siddeley Saves The Day
Retail $34.99
Value $73.55
Growth  +110.2%
Annual growth 3.8%

6141 My First Farm

Theme / Subtheme Duplo / Farm
Year 2012
Pieces / Duplo figures 62 / 1
Availability Retired
6141 LEGO Duplo My First Farm
Retail $24.99
Value $214.38
Growth  +757.9%
Annual growth 9.9%

6143 Racing Team

Theme Duplo
Year 2012
Pieces / Duplo figures 34 / 2
Availability Retired
6143 LEGO Duplo Racing Team
Retail $29.99
Value $86.47
Growth  +188.3%
Annual growth 5.9%

6144 Zoo Train

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 12 / 1
Availability Retired
6144 LEGO Duplo Zoo Train
Retail $24.99
Value $180.33
Growth  +621.6%
Annual growth 9.9%

6146 Tow Truck

Theme Duplo
Year 2012
Pieces / Duplo figures 17 / 1
Availability Retired
6146 LEGO Duplo Tow Truck
Retail $24.99
Value $32.92
Growth  +31.7%
Annual growth 2.9%

6151 Sleeping Beauty's Room

Theme / Subtheme Duplo / Disney Princess
Year 2012
Pieces / Duplo figures 16 / 1
Availability Retired
6151 LEGO Duplo Disney Princess Sleeping Beauty's Room
Retail $12.99
Value $51.43
Growth  +295.9%
Annual growth 7.4%

6152 Snow White's Cottage

Theme / Subtheme Duplo / Disney Princess
Year 2012
Pieces / Duplo figures 28 / 1
Availability Retired
6152 LEGO Duplo Disney Princess Snow White's Cottage
Retail $14.99
Value $38.77
Growth  +158.6%
Annual growth 5.5%

6153 Cinderella's Carriage

Theme / Subtheme Duplo / Disney Princess
Year 2012
Pieces / Duplo figures 20 / 1
Availability Retired
6153 LEGO Duplo Disney Princess Cinderella's Carriage
Retail $24.99
Value $80.80
Growth  +223.3%
Annual growth 9.1%

6154 Cinderella's Castle

Theme / Subtheme Duplo / Disney Princess
Year 2012
Pieces / Duplo figures 77 / 2
Availability Retired
6154 LEGO Duplo Disney Princess Cinderella's Castle
Retail $39.99
Value $248.82
Growth  +522.2%
Annual growth 11.9%

6156 Photo Safari

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 67 / 3
Availability Retired
6156 LEGO Duplo Zoo Photo Safari
Retail $59.99
Value $152.14
Growth  +153.6%
Annual growth 4.3%

6157 The Big Zoo

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 147 / 4
Availability Retired
6157 LEGO Duplo The Big Zoo
Retail $89.99
Value $385.64
Growth  +328.5%
Annual growth 9.4%

6158 Animal Clinic

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 62 / 2
Availability Retired
6158 LEGO Duplo Zoo Animal Clinic
Retail $39.99
Value $155.47
Growth  +288.8%
Annual growth 7.3%

6168 Fire Station

Theme / Subtheme Duplo / Fire
Year 2012
Pieces / Duplo figures 63 / 2
Availability Retired
6168 LEGO Duplo Fire Station
Retail $49.99
Value $189.55
Growth  +279.2%
Annual growth 11.9%

6169 Fire Chief

Theme / Subtheme Duplo / Fire
Year 2012
Pieces / Duplo figures 6 / 1
Availability Retired
6169 LEGO Duplo Fire Chief
Retail $9.99
Value $90.11
Growth  +802.0%
Annual growth 9.7%

6171 Gas Station

Theme Duplo
Year 2012
Pieces / Duplo figures 45 / 2
Availability Retired
6171 LEGO Duplo Gas Station
Retail $29.99
Value $60.34
Growth  +101.2%
Annual growth 4.4%

6172 Zoo Truck

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 8 / 1
Availability Retired
6172 LEGO Duplo Zoo Truck
Retail $19.99
Value $108.81
Growth  +444.3%
Annual growth 8.3%

6173 Panda

Theme / Subtheme Duplo / Zoo
Year 2012
Pieces / Duplo figures 8 / 1
Availability Retired
6173 LEGO Duplo Zoo Panda
Retail $7.99
Value $44.23
Growth  +453.6%
Annual growth 7.5%

6758 Grow Caterpillar Grow!

Theme Duplo
Year 2012
Pieces 17
Availability Retired
6758 LEGO Duplo Grow Caterpillar Grow!
Retail $12.99
Value $50.91
Growth  +291.9%
Annual growth 7.0%

6759 Busy Farm

Theme Duplo
Year 2012
Pieces 15
Availability Retired
6759 LEGO Duplo Busy Farm
Retail $12.99
Value $20.32
Growth  +56.4%
Annual growth 4.8%

6760 Let's Go! Wroom!

Theme Duplo
Year 2012
Pieces 12
Availability Retired
6760 LEGO Duplo Let's Go! Wroom!
Retail $12.99
Value $20.44
Growth  +57.4%
Annual growth 4.0%

6784 Creative Sorter

Theme Duplo
Year 2012
Pieces 23
Availability Retired
6784 LEGO Duplo Creative Sorter
Retail $14.99
Value $26.05
Growth  +73.8%
Annual growth 3.7%

6785 Creative Cakes

Theme Duplo
Year 2012
Pieces 55
Availability Retired
6785 LEGO Duplo Creative Cakes
Retail $24.99
Value $148.95
Growth  +496.0%
Annual growth 8.6%

10531 Mickey Mouse and Friends

Theme / Subtheme Duplo / Disney
Year 2012
Pieces 65
Availability Retired
10531 LEGO Duplo Disney Mickey Mouse and Friends
Retail $34.99
Value $112.37
Growth  +221.1%
Annual growth 5.4%

30063 Vet Random Bag

Theme Duplo
Year 2012
Pieces / Duplo figures 4 / 1
Availability Retired
30063 LEGO Duplo Vet Random Bag
promotional
Value $3.12
Annual growth 4.5%

30063-2 Vet Veterinarian

Theme Duplo
Year 2012
Pieces / Duplo figures 3 / 1
Availability Retired
30063-2 LEGO Duplo Vet Veterinarian
promotional
Value $3.15
Annual growth 7.0%

30063-3 Vet Boy

Theme Duplo
Year 2012
Pieces / Duplo figures 3 / 1
Availability Retired
30063-3 LEGO Duplo Vet Boy
promotional
Value $3.15
Annual growth 6.8%

30063-4 Vet Rabbit

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30063-4 LEGO Duplo Vet Rabbit
promotional
Value $3.15
Annual growth 7.0%

30063-5 Vet Dog

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30063-5 LEGO Duplo Vet Dog
promotional
Value $3.15
Annual growth 6.8%

30063-6 Vet Cat

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30063-6 LEGO Duplo Vet Cat
promotional
Value $3.15
Annual growth 6.8%

30064 Zoo Random Bag

Theme Duplo
Year 2012
Pieces / Duplo figures 4 / 1
Availability Retired
30064 LEGO Duplo Zoo Random Bag
promotional
Value $2.57
Annual growth 9.1%

30064-2 Zoo Monkey

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30064-2 LEGO Duplo Zoo Monkey
promotional
Value $2.57
Annual growth 6.8%

30064-3 Zoo Zookeeper

Theme Duplo
Year 2012
Pieces / Duplo figures 3 / 1
Availability Retired
30064-3 LEGO Duplo Zoo Zookeeper
promotional
Value $2.57
Annual growth 6.9%

30064-4 Zoo Tiger Cub

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30064-4 LEGO Duplo Zoo Tiger Cub
promotional
Value $2.53
Annual growth 7.2%

30064-5 Zoo Turtle

Theme Duplo
Year 2012
Pieces 4
Availability Retired
30064-5 LEGO Duplo Zoo Turtle
promotional
Value $2.57
Annual growth 5.3%

66392 Cars Super Pack 3-in-1

Theme / Subtheme Duplo / Value Packs
Year 2012
Pieces 67
Availability Retired
66392 LEGO Duplo Cars Super Pack 3-in-1
Retail $59.99
Value $180.27
Growth  +200.5%
Annual growth 8.8%

66429 Super Pack 3-in-1

Theme / Subtheme Duplo / Value Packs
Year 2012
Pieces 96
Availability Retired
66429 LEGO Duplo Super Pack 3-in-1
Retail $79.99
Value $183.20
Growth  +129.0%
Annual growth 5.4%

66430 Super Pack 3-in-1

Theme / Subtheme Duplo / Value Packs
Year 2012
Pieces 34
Availability Retired
66430 LEGO Duplo Super Pack 3-in-1
Retail $29.99
Value $205.28
Growth  +584.5%
Annual growth 12.7%