Seasonal is a subtheme of Basic that consists of 18 sets that ran from 1977 to 2000. Most sets were released in 1997 which accounted for 4 sets. As of today, the average annual growth of sets in Basic Seasonal is approximately 6.2% per year.
Most valuable Basic Seasonal set
246-2 Santa and Sleigh $146.16
Largest Basic Seasonal set
2250 Advent Calendar 240 pieces
Most owned Basic Seasonal set
1555 Santa Claus
LEGO has produced various seasonal and holiday-themed sets over the years. These sets often coincide with holidays like Christmas, Easter, Halloween, and Valentine's Day, among others. The LEGO Basic theme, which began in the 1970s, was designed to be a more general, non-thematic series of sets. Unlike the themed sets that revolve around concepts, the Basic theme provided a collection of standard LEGO bricks and pieces.
18 sets

2250 Advent Calendar

Theme / Subtheme Basic / Seasonal
Year 2000
Pieces 240
Availability Retired
2250 LEGO Advent Calendar
Retail $19.99
Value $45.00
Growth  +125.1%
Annual growth 6.6%

1076 Advent Calendar

Theme / Subtheme Basic / Seasonal
Year 1999
Pieces / Minifigs 229 / 1
Availability Retired
1076 LEGO Advent Calendar
Retail $19.99
Value $93.86
Growth  +369.5%
Annual growth 6.1%

2878 Santa Claus

Theme / Subtheme Basic / Seasonal
Year 1997
Pieces 16
Availability Retired
2878 LEGO Santa Claus
Retail $1.99
Value $4.65
Growth  +133.7%
Annual growth 6.1%

2873 Christmas Set

Theme / Subtheme Basic / Seasonal
Year 1997
Pieces 9
Availability Retired
2873 LEGO Christmas Set
Retail $1.99
Value $19.91
Growth  +900.5%
Annual growth 8.6%

2874 Christmas Set

Theme / Subtheme Basic / Seasonal
Year 1997
Pieces 9
Availability Retired
2874 LEGO Christmas Set
Retail $1.99
Value $16.14
Growth  +711.1%
Annual growth 7.8%

2876 Christmas Set

Theme / Subtheme Basic / Seasonal
Year 1997
Pieces 9
Availability Retired
2876 LEGO Christmas Set
Retail $1.99
Value $14.60
Growth  +633.7%
Annual growth 7.4%

1549 Santa and Chimney

Theme / Subtheme Basic / Seasonal
Year 1992
Pieces 62
Availability Retired
1549 LEGO Santa and Chimney
Retail $3.50
Value $15.97
Growth  +356.3%
Annual growth 10.9%

1979 Snowman

Theme / Subtheme Basic / Seasonal
Year 1991
Pieces 42
Availability Retired
1979 LEGO Snowman
Value $15.00

1978 Santa Claus

Theme / Subtheme Basic / Seasonal
Year 1991
Pieces 39
Availability Retired
1978 LEGO Santa Claus
Value $8.93

1980 Santa's Elves

Theme / Subtheme Basic / Seasonal
Year 1991
Pieces 30
Availability Retired
1980 LEGO Santa's Elves
Value $24.99

1677 Rabbit

Theme / Subtheme Basic / Seasonal
Year 1990
Pieces 25
Availability Retired
1677 LEGO Rabbit
Retail $0.99
Value $7.04
Growth  +611.1%
Annual growth 5.2%

1628 Santa with Reindeer and Sleigh

Theme / Subtheme Basic / Seasonal
Year 1989
Pieces 63
Availability Retired
1628 LEGO Santa with Reindeer and Sleigh
Retail $2.99
Value $25.89
Growth  +765.9%
Annual growth 7.0%

1625 Snowman

Theme / Subtheme Basic / Seasonal
Year 1989
Pieces 40
Availability Retired
1625 LEGO Snowman
Retail $1.30
Value $10.98
Growth  +744.6%
Annual growth 9.6%

1627 Santa

Theme / Subtheme Basic / Seasonal
Year 1989
Pieces 36
Availability Retired
1627 LEGO Santa
Retail $1.30
Value $7.30
Growth  +461.5%
Annual growth 2.8%

1626 Angel

Theme / Subtheme Basic / Seasonal
Year 1989
Pieces 33
Availability Retired
1626 LEGO Angel
Retail $1.30
Value $22.08
Growth  +1598.5%
Annual growth 8.2%

1555 Santa Claus

Theme / Subtheme Basic / Seasonal
Year 1986
Pieces 19
Availability Retired
1555 LEGO Santa Claus
Retail $1.00
Value $9.29
Growth  +829.0%
Annual growth 10.3%

1556 Christmas Hearts

Theme / Subtheme Basic / Seasonal
Year 1986
Pieces 10
Availability Retired
1556 LEGO Christmas Hearts

246-2 Santa and Sleigh

Theme / Subtheme Basic / Seasonal
Year 1977
Pieces 1
Availability Retired
246-2 LEGO Santa and Sleigh
Retail $1.50
Value $146.16
Growth  +9644.0%
Annual growth 7.0%