In 2021, LEGO released 5 Seasonal Christmas sets, all of these sets have been retired. For that year, the total price of all retail sets cost $65, today those sets are valued around $345, a growth of 431%.
Most valuable 2021 LEGO Seasonal Christmas set
40489 Mr. and Mrs. Claus' Living Room $251.40
Highest growth 2021 Seasonal Christmas set
40494 Polar Bear & Gift Pack +99.90%
Most owned 2021 Seasonal Christmas set
40499 Santa's Sleigh
5 sets

40484 Santa's Front Yard

Theme / Subtheme Seasonal / Christmas
Year 2021
Pieces / Minifigs 317 / 1
Availability Retired
40484 LEGO Christmas Santa's Front Yard
promotional
Value $18.82
Annual growth 39.3%

40489 Mr. and Mrs. Claus' Living Room

Theme / Subtheme Seasonal / Christmas
Year 2021
Pieces / Minifigs 344 / 2
Availability Retired
40489 LEGO Christmas Mr. and Mrs. Claus' Living Room
promotional
Value $251.40
Annual growth 30.3%

40494 Polar Bear & Gift Pack

Theme / Subtheme Seasonal / Christmas
Year 2021
Pieces 142
Availability Retired
40494 LEGO Christmas Polar Bear & Gift Pack
Retail $9.99
Value $19.97
Growth  +99.9%
Annual growth 9.4%

40498 Penguin

Theme / Subtheme Seasonal / Christmas
Year 2021
Pieces 244
Availability Retired
40498 LEGO Christmas Penguin
Retail $14.99
Value $20.00
Growth  +33.4%
Annual growth 5.4%

40499 Santa's Sleigh

Theme / Subtheme Seasonal / Christmas
Year 2021
Pieces / Minifigs 343 / 1
Availability Retired
40499 LEGO Christmas Santa's Sleigh
Retail $39.99
Value $34.99