In 2002, LEGO released 17 Harry Potter sets across 3 subthemes, all of these sets have been retired. Subthemes for that year included Chamber of Secrets, Philosophers Stone, and Promotional. For that year, the total price of all retail sets cost $266, today those sets are valued around $2,579, a growth of 870%.
Most valuable 2002 LEGO Harry Potter set
Harry Potter Minifigure Collection Gallery 3 $610.65
Highest growth 2002 Harry Potter set
4711 Flying Lesson +932.08%
Largest 2002 LEGO Harry Potter set
4730 The Chamber of Secrets 591 pieces
Most owned 2002 Harry Potter set
4712 Troll on the Loose
17 sets

4711 Flying Lesson

Theme / Subtheme Harry Potter / Philosopher's Stone
Year 2002
Pieces / Minifigs 23 / 2
Availability Retired
4711 LEGO Harry Potter Philosopher's Stone Flying Lesson
Retail $3.99
Value $41.18
Growth  +932.1%
Annual growth 6.2%

4712 Troll on the Loose

Theme / Subtheme Harry Potter / Philosopher's Stone
Year 2002
Pieces / Minifigs 71 / 2
Availability Retired
4712 LEGO Harry Potter Philosopher's Stone Troll on the Loose
Retail $9.99
Value $89.96
Growth  +800.5%
Annual growth 6.7%

4714 Gringott's Bank

Theme / Subtheme Harry Potter / Philosopher's Stone
Year 2002
Pieces / Minifigs 250 / 4
Availability Retired
4714 LEGO Harry Potter Philosopher's Stone Gringott's Bank
Retail $29.99
Value $178.40
Growth  +494.9%
Annual growth 6.6%

4726 Quidditch Practice

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 128 / 3
Availability Retired
4726 LEGO Harry Potter Chamber of Secrets Quidditch Practice
Retail $14.99
Value $78.77
Growth  +425.5%
Annual growth 6.0%

4727 Aragog in the Dark Forest

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 178 / 2
Availability Retired
4727 LEGO Harry Potter Chamber of Secrets Aragog in the Dark Forest
Retail $19.99
Value $54.97
Growth  +175.0%
Annual growth 6.8%

4728 Escape from Privet Drive

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 278 / 3
Availability Retired
4728 LEGO Harry Potter Chamber of Secrets Escape from Privet Drive
Retail $29.99
Value $123.98
Growth  +313.4%
Annual growth 7.2%

4729 Dumbledore's Office

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 446 / 3
Availability Retired
4729 LEGO Harry Potter Chamber of Secrets Dumbledore's Office
Retail $49.99
Value $149.65
Growth  +199.4%
Annual growth 5.9%

4730 The Chamber of Secrets

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 591 / 5
Availability Retired
4730 LEGO Harry Potter The Chamber of Secrets
Retail $69.99
Value $300.00
Growth  +328.6%
Annual growth 6.4%

4731 Dobby's Release

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 70 / 2
Availability Retired
4731 LEGO Harry Potter Chamber of Secrets Dobby's Release
Retail $6.99
Value $37.60
Growth  +437.9%
Annual growth 6.9%

4733 The Dueling Club

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 129 / 4
Availability Retired
4733 LEGO Harry Potter Chamber of Secrets The Dueling Club
Retail $19.99
Value $78.12
Growth  +290.8%
Annual growth 5.4%

4735 Slytherin Common Room

Theme / Subtheme Harry Potter / Chamber of Secrets
Year 2002
Pieces / Minifigs 90 / 3
Availability Retired
4735 LEGO Harry Potter Chamber of Secrets Slytherin Common Room
Retail $9.99
Value $48.17
Growth  +382.2%
Annual growth 5.9%

Harry Potter Minifigure Collection Gallery 1

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces / Minifigs 20 / 4
Availability Retired
LEGO Harry Potter Minifigure Collection Gallery 1
promotional
Value $47.30
Annual growth 18.3%

Harry Potter Minifigure Collection Gallery 2

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces / Minifigs 17 / 4
Availability Retired
LEGO Harry Potter Minifigure Collection Gallery 2
promotional
Value $90.63
Annual growth 5.1%

Harry Potter Minifigure Collection Gallery 3

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces / Minifigs 23 / 4
Availability Retired
LEGO Harry Potter Minifigure Collection Gallery 3
promotional
Value $610.65
Annual growth 5.2%

Harry Potter Minifigure Collection Gallery 4

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces / Minifigs 23 / 5
Availability Retired
LEGO Harry Potter Minifigure Collection Gallery 4
promotional
Value $129.82
Annual growth 18.4%

Harry Potter Coca Cola Gift Set

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces 540
Availability Retired
LEGO Harry Potter Coca Cola Gift Set
promotional
Value $463.91
Annual growth 35.4%

Quidditch Tower

Theme / Subtheme Harry Potter / Promotional
Year 2002
Pieces 38
Availability Retired
LEGO Harry Potter Quidditch Tower
promotional
Value $55.53
Annual growth 6.8%