In 1981, LEGO released 58 sets across 9 themes, all of these sets have been retired.
Most valuable 1981 LEGO set
6075-2 Castle $5,021.26
Highest growth 1981 set
6083 Knight's Joust +18273.36%
Theme Basic
Year 1981
Pieces 38
Availability Retired
1-11 LEGO Basic Souvenir Box
Value $133.34
Theme Basic
Year 1981
Pieces 82
Availability Retired
322 LEGO Basic Set
Retail $5.99
Value $55.65
Growth  +829.0%
Annual growth 2.9%
Theme Basic
Year 1981
Pieces / Minifigs 98 / 2
Availability Retired
333 LEGO Basic Set
Retail $9.99
Value $40.59
Growth  +306.3%
Annual growth 3.0%
Theme / Subtheme Basic / Basic Set
Year 1981
Pieces / Minifigs 181 / 2
Availability Retired
355-2 LEGO Universal Building Set
Retail $18.50
Value $160.87
Growth  +769.6%
Annual growth 5.8%
Theme Basic
Year 1981
Pieces / Minifigs 184 / 2
Availability Retired
366 LEGO Basic Building Set
Retail $17.99
Value $58.32
Growth  +224.2%
Annual growth 3.6%
Theme Basic
Year 1981
Pieces / Minifigs 141 / 1
Availability Retired
544 LEGO Basic Building Set
Retail $9.49
Value $117.32
Growth  +1136.2%
Annual growth 4.3%
Theme Basic
Year 1981
Pieces / Minifigs 246 / 2
Availability Retired
555-2 LEGO Basic Building Set
Retail $12.99
Value $229.15
Growth  +1664.0%
Annual growth 6.6%
Theme Basic
Year 1981
Pieces / Minifigs 288 / 2
Availability Retired
566 LEGO Basic Building Set
Retail $25.99
Value $241.34
Growth  +828.6%
Annual growth 4.7%
Theme Basic
Year 1981
Pieces / Minifigs 384 / 2
Availability Retired
577 LEGO Basic Building Set
Retail $37.99
Value $152.60
Growth  +301.7%
Annual growth 2.1%
Theme / Subtheme Basic / Supplementaries
Year 1981
Pieces 10
Availability Retired
890 LEGO Wind-Up Motor
Retail $7.49
Value $61.81
Growth  +725.2%
Annual growth 5.8%
Theme / Subtheme Dacta / Town
Year 1981
Pieces 30
Availability Retired
1060 LEGO Dacta Town Road Plates and Signs
Value $185.52
Theme Dacta
Year 1981
Pieces / Minifigs 396 / 6
Availability Retired
1064 LEGO Dacta Buildings
Theme / Subtheme Promotional / Ferries
Year 1981
Pieces 182
Availability Retired
1581 LEGO Silja Line Ferry
promotional
Value $780.05
Annual growth 7.5%
Theme Duplo
Year 1981
Pieces / Duplo figures 9 / 1
Availability Retired
2330 LEGO Duplo Basic Set
Theme Duplo
Year 1981
Pieces / Duplo figures 17 / 1
Availability Retired
2340 LEGO Duplo Basic Set
Value $24.99
Theme / Subtheme Duplo / Building Sets
Year 1981
Pieces / Duplo figures 22 / 2
Availability Retired
2350 LEGO Duplo Basic Building Set
Retail $14.99
Value $87.90
Growth  +486.4%
Annual growth 4.2%
Theme Duplo
Year 1981
Pieces / Duplo figures 32 / 3
Availability Retired
2360 LEGO Duplo Basic Set
Value $109.10
Theme Duplo
Year 1981
Pieces / Duplo figures 45 / 4
Availability Retired
2370 LEGO Duplo Basic Set
Retail $12.95
Theme Duplo
Year 1981
Pieces / Duplo figures 2 / 1
Availability Retired
2621-2 LEGO Duplo Tractor
Retail $1.70
Value $50.56
Growth  +2874.1%
Annual growth 8.2%
Theme Duplo
Year 1981
Pieces / Duplo figures 2 / 1
Availability Retired
2624 LEGO Duplo Helicopter
Value $69.77
Theme Duplo
Year 1981
Pieces / Duplo figures 14 / 2
Availability Retired
2644 LEGO Duplo Service Station
Value $93.68
Theme Fabuland
Year 1981
Pieces / FabuFigs 6 / 1
Availability Retired
3601 LEGO Fabuland Elton Elephant
Retail $3.95
Value $488.00
Growth  +12254.4%
Annual growth 10.4%
Theme Fabuland
Year 1981
Pieces / FabuFigs 5 / 1
Availability Retired
3603 LEGO Fabuland Boris Bulldog and Mailbox
Retail $3.95
Value $108.08
Growth  +2636.2%
Annual growth 7.9%
Theme Fabuland
Year 1981
Pieces / FabuFigs 4 / 1
Availability Retired
3615 LEGO Fabuland Percy Pig
Retail $3.95
Value $48.49
Growth  +1127.6%
Annual growth 5.9%
Theme Fabuland
Year 1981
Pieces / FabuFigs 3 / 2
Availability Retired
3628 LEGO Fabuland Perry Panda and Chester Chimp
Retail $4.47
Value $122.78
Growth  +2646.8%
Annual growth 8.5%
Theme Fabuland
Year 1981
Pieces / FabuFigs 16 / 1
Availability Retired
3629 LEGO Fabuland Barney Bear
Retail $7.49
Value $102.60
Growth  +1269.8%
Annual growth 5.7%
Theme Fabuland
Year 1981
Pieces / FabuFigs 25 / 1
Availability Retired
3635 LEGO Fabuland Bonnie Bunny's Camper
Retail $9.49
Value $188.21
Growth  +1883.2%
Annual growth 6.1%
Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 767 / 14
Availability Retired
6075-2 LEGO Castle
Retail $48.00
Value $5,021.26
Growth  +10361.0%
Annual growth 11.4%
Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 48 / 6
Availability Retired
6077 LEGO Castle Knight's Procession
Retail $4.99
Value $499.22
Growth  +9904.4%
Annual growth 14.2%
Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 211 / 6
Availability Retired
6083 LEGO Castle Knight's Joust
Retail $15.99
Value $2,937.90
Growth  +18273.4%
Annual growth 5.8%
Theme / Subtheme Town / Leisure
Year 1981
Pieces / Minifigs 144 / 1
Availability Retired
6365 LEGO Summer Cottage
Retail $14.99
Value $286.69
Growth  +1812.5%
Annual growth 8.4%
Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 390 / 4
Availability Retired
6382 LEGO Fire Station
Retail $24.99
Value $860.16
Growth  +3342.0%
Annual growth 8.0%
Theme / Subtheme Town / Maintenance
Year 1981
Pieces / Minifigs 421 / 4
Availability Retired
6383 LEGO Public Works Center
Retail $29.99
Value $922.14
Growth  +2974.8%
Annual growth 8.3%
Theme / Subtheme Town / Classic
Year 1981
Pieces / Minifigs 23 / 1
Availability Retired
6600 LEGO Police Patrol
Retail $2.49
Value $108.44
Growth  +4255.0%
Annual growth 9.2%
Theme / Subtheme Town / Classic
Year 1981
Pieces / Minifigs 29 / 1
Availability Retired
6602 LEGO Fire Unit I
Retail $1.89
Value $202.69
Growth  +10624.3%
Annual growth 11.5%
Theme / Subtheme Town / Shops and Services
Year 1981
Pieces / Minifigs 29 / 1
Availability Retired
6610 LEGO Gas Pumps
Retail $2.99
Value $150.26
Growth  +4925.4%
Annual growth 6.8%
Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 20 / 1
Availability Retired
6611 LEGO Fire Chief's Car
Retail $4.49
Value $62.67
Growth  +1295.8%
Annual growth 4.3%
Theme / Subtheme Town / Classic
Year 1981
Pieces 37
Availability Retired
6626 LEGO Rescue Helicopter
Retail $3.89
Value $25.00
Growth  +542.7%
Annual growth 5.4%
Theme / Subtheme Town / Vehicles
Year 1981
Pieces 38
Availability Retired
6628 LEGO Shell Tow Truck
Retail $3.25
Value $187.39
Growth  +5665.8%
Annual growth 5.6%
Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 39 / 1
Availability Retired
6629 LEGO Ambulance
Retail $3.25
Value $146.22
Growth  +4399.1%
Annual growth 6.1%
Theme / Subtheme Town / Construction
Year 1981
Pieces / Minifigs 34 / 1
Availability Retired
6630 LEGO Construction Bucket Loader
Retail $2.49
Value $81.56
Growth  +3175.5%
Annual growth 9.0%
Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 46 / 1
Availability Retired
6650 LEGO Fire and Rescue Van
Retail $4.49
Value $169.90
Growth  +3684.0%
Annual growth 6.3%
Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 63 / 2
Availability Retired
6680 LEGO Ambulance
Retail $5.99
Value $256.42
Growth  +4180.8%
Annual growth 6.6%
Theme / Subtheme Town / Police
Year 1981
Pieces / Minifigs 82 / 1
Availability Retired
6681 LEGO Police Van
Retail $4.49
Value $158.68
Growth  +3434.1%
Annual growth 12.8%
Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 107 / 2
Availability Retired
6691 LEGO Red Cross Helicopter
Retail $11.99
Value $365.80
Growth  +2950.9%
Annual growth 8.3%
Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 22 / 1
Availability Retired
6801 LEGO Moon Buggy
Retail $1.99
Value $188.52
Growth  +9373.4%
Annual growth 8.2%
Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 33 / 1
Availability Retired
6822 LEGO Space Digger
Retail $2.99
Value $210.70
Growth  +6946.8%
Annual growth 7.3%
Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 46 / 1
Availability Retired
6842 LEGO Small Space Shuttle Craft
Retail $3.99
Value $128.89
Growth  +3130.3%
Annual growth 5.5%
Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 60 / 1
Availability Retired
6870 LEGO Space Probe Launcher
Retail $7.49
Value $218.23
Growth  +2813.6%
Annual growth 4.5%
Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 170 / 2
Availability Retired
6927 LEGO All-Terrain Vehicle
Retail $12.99
Value $563.71
Growth  +4239.6%
Annual growth 9.0%