In 2015, LEGO released 4 Icons sets across 4 subthemes, all of these sets have been retired. Subthemes for that year included Fairground, Modular Buildings, Vehicles, and Winter Village. For that year, the total price of all retail sets cost $540, today those sets are valued around $1,413, a growth of 162%.
Most valuable 2015 LEGO Icons set
10246 Detective's Office $467.02
Highest growth 2015 Icons set
10248 Ferrari F40 +299.86%
Largest 2015 LEGO Icons set
10247 Ferris Wheel 2,464 pieces
4 sets

10246 Detective's Office

Theme / Subtheme Icons / Modular Buildings
Year 2015
Pieces / Minifigs 2,262 / 6
Availability Retired
10246 LEGO Detective's Office
Retail $159.99
Value $467.02
Growth  +191.9%
Annual growth 13.7%

10247 Ferris Wheel

Theme / Subtheme Icons / Fairground
Year 2015
Pieces / Minifigs 2,464 / 10
Availability Retired
10247 LEGO Ferris Wheel
Retail $199.99
Value $333.32
Growth  +66.7%
Annual growth 7.0%

10248 Ferrari F40

Theme / Subtheme Icons / Vehicles
Year 2015
Pieces 1,158
Availability Retired
10248 LEGO Ferrari F40
Retail $99.99
Value $399.82
Growth  +299.9%
Annual growth 17.4%

10249 Winter Toy Shop

Theme / Subtheme Icons / Winter Village
Year 2015
Pieces / Minifigs 898 / 8
Availability Retired
10249 LEGO Winter Toy Shop
Retail $79.99
Value $213.04
Growth  +166.3%
Annual growth 11.9%