In 1957, LEGO released 20 sets, all of these sets have been retired. For that year, the total price of all retail sets cost $76, today those sets are valued around $30,713.
Most valuable 1957 LEGO set
1260-2 1:87 Twenty Four Models $9,857.01
Highest growth 1957 set
1307 VW Auto Showroom +83458.35%
Largest 1957 LEGO set
1309 Church 150 pieces
1957 broadened System i Leg sets (including 700-series boxes) and improved international packaging with multilingual details and organized parts assortments.
20 sets

200-3 Town Plan Board Plastic

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 1
Availability Retired
200-3 LEGO Town Plan Board Plastic
Retail $3.75
Value $1,136.01
Growth  +30193.6%
Annual growth 8.6%

200A LEGO Town Plan Wooden Board

Theme / Subtheme System i Leg / Town Plan
Year 1957
Availability Retired
200A LEGO Town Plan Wooden Board
Retail $4.50
Value $797.01
Growth  +17611.3%
Annual growth 7.8%

214-4 Windows and Doors Retailer Pack

Theme / Subtheme System i Leg / Supplemental
Year 1957
Availability Retired
214-4 LEGO Windows and Doors Retailer Pack
Retail $8.00
Value $805.06
Growth  +9963.3%
Annual growth 6.9%

225 1x6 and 1x8 Bricks

Theme / Subtheme System i Leg / Supplemental
Year 1957
Availability Retired
225 LEGO 1x6 and 1x8 Bricks
Retail $0.50

236-2 Garage and Van

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 69
Availability Retired
236-2 LEGO Garage and Van
Retail $4.50
Value $1,800.00
Growth  +39900.0%

283 Red Sloping Ridge and Valley Bricks

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 20
Availability Retired
283 LEGO Red Sloping Ridge and Valley Bricks
Retail $0.50
Value $28.56
Growth  +5612.0%
Annual growth 4.0%

283-2 Blue Sloping Ridge and Valley Bricks

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 20
Availability Retired
283-2 LEGO Blue Sloping Ridge and Valley Bricks
Retail $0.50
Value $72.90
Growth  +14480.0%
Annual growth 6.4%

LEGO Town Plan Wooden Board

Theme / Subtheme System i Leg / Town Plan
Year 1957
Availability Retired
LEGO Town Plan Wooden Board
Retail $3.75
Value $1,036.17
Growth  +27531.2%
Annual growth 8.5%

1223-3 2x2 Curved Bricks

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 20
Availability Retired
1223-3 LEGO 2x2 Curved Bricks
Retail $0.50

1231-4 Windows and Doors Retailer Pack

Theme / Subtheme System i Leg / Supplemental
Year 1957
Availability Retired
1231-4 LEGO Windows and Doors Retailer Pack
Retail $8.00
Value $19.05
Growth  +138.1%
Annual growth 4.2%

1233-2 Light Masts

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 4
Availability Retired
1233-2 LEGO Light Masts
Retail $0.50

1234-2 Letter Bricks

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 50
Availability Retired
1234-2 LEGO Letter Bricks
Retail $0.50

1242-2 International Flags

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 5
Availability Retired
1242-2 LEGO International Flags
Retail $0.50
Value $272.19
Growth  +54338.0%
Annual growth 4.6%

5 Danish Flags

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 5
Availability Retired
LEGO 5 Danish Flags
Retail $0.50

1245-2 Lighting Device Pack

Theme / Subtheme System i Leg / Supplemental
Year 1957
Pieces 3
Availability Retired
1245-2 LEGO Lighting Device Pack
Retail $3.00
Value $8.99
Growth  +199.7%
Annual growth 5.3%

1260-2 1:87 Twenty Four Models

Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1957
Pieces 24
Availability Retired
1260-2 LEGO 1:87 Twenty Four Models
Retail $18.00
Value $9,857.01
Growth  +54661.2%
Annual growth 9.6%

1306 VW Garage

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 45
Availability Retired
1306 LEGO VW Garage
Retail $5.50
Value $4,574.07
Growth  +83064.9%
Annual growth 10.2%

1307 VW Auto Showroom

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 51
Availability Retired
1307 LEGO VW Auto Showroom
Retail $4.25
Value $3,551.23
Growth  +83458.4%
Annual growth 10.2%

1308 Fire Station

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 111
Availability Retired
1308 LEGO Fire Station
Retail $4.50
Value $3,663.14
Growth  +81303.1%
Annual growth 10.2%

1309 Church

Theme / Subtheme System i Leg / Town Plan
Year 1957
Pieces 150
Availability Retired
1309 LEGO Church
Retail $4.50
Value $3,091.35
Growth  +68596.7%
Annual growth 9.9%