In 1981, LEGO released 58 sets across 10 themes, all of these sets have been retired. For that year, the total price of all retail sets cost $813, today those sets are valued around $27,729.
Most valuable 1981 LEGO set
6075-2 Castle $6,620.00
Highest growth 1981 set
6083 Knight's Joust +26609.88%
1981 added Fabuland entries bridging DUPLO and System, while Town and Space delivered consistent, child-playable sets with simple builds and bright color schemes.
1 to 50 of 58 sets

1-11 Basic Souvenir Box

Theme Basic
Year 1981
Pieces 38
Availability Retired
1-11 LEGO Basic Souvenir Box
Retail $5.99
Value $67.54
Growth  +1027.5%
Annual growth 3.9%

322 Basic Set

Theme Basic
Year 1981
Pieces 82
Availability Retired
322 LEGO Basic Set
Retail $5.99
Value $47.95
Growth  +700.5%
Annual growth 5.0%

333 Basic Set

Theme Basic
Year 1981
Pieces / Minifigs 98 / 2
Availability Retired
333 LEGO Basic Set
Retail $9.99
Value $50.79
Growth  +408.4%
Annual growth 3.7%

355-2 Universal Building Set

Theme / Subtheme Basic / Basic Set
Year 1981
Pieces / Minifigs 181 / 2
Availability Retired
355-2 LEGO Universal Building Set
Retail $18.50
Value $157.19
Growth  +749.7%
Annual growth 4.5%

366 Basic Building Set

Theme Basic
Year 1981
Pieces / Minifigs 184 / 2
Availability Retired
366 LEGO Basic Building Set
Retail $17.99
Value $62.45
Growth  +247.1%
Annual growth 3.7%

544 Basic Building Set

Theme Basic
Year 1981
Pieces / Minifigs 141 / 1
Availability Retired
544 LEGO Basic Building Set
Retail $9.49
Value $112.96
Growth  +1090.3%
Annual growth 5.7%

555-2 Basic Building Set

Theme Basic
Year 1981
Pieces / Minifigs 246 / 2
Availability Retired
555-2 LEGO Basic Building Set
Retail $12.99
Value $184.20
Growth  +1318.0%
Annual growth 3.7%

566 Basic Building Set

Theme Basic
Year 1981
Pieces / Minifigs 288 / 2
Availability Retired
566 LEGO Basic Building Set
Retail $25.99
Value $208.20
Growth  +701.1%
Annual growth 3.5%

577 Basic Building Set

Theme Basic
Year 1981
Pieces / Minifigs 384 / 2
Availability Retired
577 LEGO Basic Building Set
Retail $37.99
Value $136.20
Growth  +258.5%
Annual growth 5.3%

890 Wind-Up Motor

Theme / Subtheme Basic / Supplementaries
Year 1981
Pieces 10
Availability Retired
890 LEGO Wind-Up Motor
Retail $7.49
Value $50.00
Growth  +567.6%
Annual growth 4.4%

1060 Road Plates and Signs

Theme / Subtheme Dacta / Town
Year 1981
Pieces 30
Availability Retired
1060 LEGO Dacta Town Road Plates and Signs
Retail $3.95
Value $200.00
Growth  +4963.3%
Annual growth 5.7%

1064 Dacta Buildings

Theme Dacta
Year 1981
Pieces / Minifigs 396 / 6
Availability Retired
1064 LEGO Dacta Buildings
Retail $69.99
Value $110.05
Growth  +57.2%
Annual growth 1.0%

1581 Silja Line Ferry

Theme / Subtheme Promotional / Ferries
Year 1981
Pieces 182
Availability Retired
1581 LEGO Silja Line Ferry
promotional
Value $1,017.38
Annual growth 9.4%

2330 Basic Set

Theme Duplo
Year 1981
Pieces / Duplo figures 9 / 1
Availability Retired
2330 LEGO Duplo Basic Set
Retail $9.99

2340 Basic Set

Theme Duplo
Year 1981
Pieces / Duplo figures 17 / 1
Availability Retired
2340 LEGO Duplo Basic Set
Retail $12.00
Value $24.99
Growth  +108.3%
Annual growth 1.7%

2350 Basic Building Set

Theme / Subtheme Duplo / Building Sets
Year 1981
Pieces / Duplo figures 22 / 2
Availability Retired
2350 LEGO Duplo Basic Building Set
Retail $14.99
Value $92.33
Growth  +515.9%
Annual growth 4.1%

2360 Basic Set

Theme Duplo
Year 1981
Pieces / Duplo figures 32 / 3
Availability Retired
2360 LEGO Duplo Basic Set
Retail $11.99
Value $117.49
Growth  +879.9%
Annual growth 5.0%

2370 Basic Set

Theme Duplo
Year 1981
Pieces / Duplo figures 45 / 4
Availability Retired
2370 LEGO Duplo Basic Set
Retail $12.95
Value $149.94
Growth  +1057.8%
Annual growth 5.6%

2621-2 Tractor

Theme Duplo
Year 1981
Pieces / Duplo figures 2 / 1
Availability Retired
2621-2 LEGO Duplo Tractor
Retail $1.70
Value $102.94
Growth  +5955.3%
Annual growth 8.1%

2624 Helicopter

Theme Duplo
Year 1981
Pieces / Duplo figures 2 / 1
Availability Retired
2624 LEGO Duplo Helicopter
Retail $11.99
Value $52.50
Growth  +337.9%
Annual growth 3.4%

2644 Service Station

Theme Duplo
Year 1981
Pieces / Duplo figures 14 / 2
Availability Retired
2644 LEGO Duplo Service Station
Retail $15.50
Value $115.40
Growth  +644.5%
Annual growth 4.6%

3601 Elton Elephant

Theme Fabuland
Year 1981
Pieces / FabuFigs 6 / 1
Availability Retired
3601 LEGO Fabuland Elton Elephant
Retail $3.95
Value $262.19
Growth  +6537.7%
Annual growth 7.1%

3603 Boris Bulldog and Mailbox

Theme Fabuland
Year 1981
Pieces / FabuFigs 5 / 1
Availability Retired
3603 LEGO Fabuland Boris Bulldog and Mailbox
Retail $3.95
Value $144.17
Growth  +3549.9%
Annual growth 7.2%

3615 Percy Pig

Theme Fabuland
Year 1981
Pieces / FabuFigs 4 / 1
Availability Retired
3615 LEGO Fabuland Percy Pig
Retail $3.95
Value $51.45
Growth  +1202.5%
Annual growth 5.9%

3628 Perry Panda and Chester Chimp

Theme Fabuland
Year 1981
Pieces / FabuFigs 3 / 2
Availability Retired
3628 LEGO Fabuland Perry Panda and Chester Chimp
Retail $4.47
Value $94.65
Growth  +2017.4%
Annual growth 6.5%

3629 Barney Bear

Theme Fabuland
Year 1981
Pieces / FabuFigs 16 / 1
Availability Retired
3629 LEGO Fabuland Barney Bear
Retail $7.49
Value $119.95
Growth  +1501.5%
Annual growth 4.0%

3635 Bonnie Bunny's Camper

Theme Fabuland
Year 1981
Pieces / FabuFigs 25 / 1
Availability Retired
3635 LEGO Fabuland Bonnie Bunny's Camper
Retail $9.49
Value $160.23
Growth  +1588.4%
Annual growth 4.3%

6075-2 Castle

Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 767 / 14
Availability Retired
6075-2 LEGO Castle
Retail $48.00
Value $6,620.00
Growth  +13691.7%
Annual growth 7.2%

6077 Knight's Procession

Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 48 / 6
Availability Retired
6077 LEGO Castle Knight's Procession
Retail $4.99
Value $675.43
Growth  +13435.7%
Annual growth 14.5%

6083 Knight's Joust

Theme / Subtheme Castle / Classic
Year 1981
Pieces / Minifigs 211 / 6
Availability Retired
6083 LEGO Castle Knight's Joust
Retail $15.99
Value $4,270.91
Growth  +26609.9%
Annual growth 7.1%

6365 Summer Cottage

Theme / Subtheme Town / Leisure
Year 1981
Pieces / Minifigs 144 / 1
Availability Retired
6365 LEGO Summer Cottage
Retail $14.99
Value $530.98
Growth  +3442.2%
Annual growth 6.5%

6382 Fire Station

Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 390 / 4
Availability Retired
6382 LEGO Fire Station
Retail $24.99
Value $915.42
Growth  +3563.1%
Annual growth 6.7%

6383 Public Works Center

Theme / Subtheme Town / Maintenance
Year 1981
Pieces / Minifigs 421 / 4
Availability Retired
6383 LEGO Public Works Center
Retail $29.99
Value $994.59
Growth  +3216.4%
Annual growth 8.1%

6600 Police Patrol

Theme / Subtheme Town / Classic
Year 1981
Pieces / Minifigs 23 / 1
Availability Retired
6600 LEGO Police Patrol
Retail $2.49
Value $155.81
Growth  +6157.4%
Annual growth 8.0%

6602 Fire Unit I

Theme / Subtheme Town / Classic
Year 1981
Pieces / Minifigs 29 / 1
Availability Retired
6602 LEGO Fire Unit I
Retail $1.89
Value $142.46
Growth  +7437.6%
Annual growth 10.1%

6610 Gas Pumps

Theme / Subtheme Town / Shops and Services
Year 1981
Pieces / Minifigs 29 / 1
Availability Retired
6610 LEGO Gas Pumps
Retail $2.99
Value $145.55
Growth  +4767.9%
Annual growth 5.0%

6611 Fire Chief's Car

Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 20 / 1
Availability Retired
6611 LEGO Fire Chief's Car
Retail $4.49
Value $76.60
Growth  +1606.0%
Annual growth 3.5%

6626 Rescue Helicopter

Theme / Subtheme Town / Classic
Year 1981
Pieces 37
Availability Retired
6626 LEGO Rescue Helicopter
Retail $3.89
Value $118.69
Growth  +2951.2%
Annual growth 7.2%

6628 Shell Tow Truck

Theme / Subtheme Town / Vehicles
Year 1981
Pieces 38
Availability Retired
6628 LEGO Shell Tow Truck
Retail $3.25
Value $132.93
Growth  +3990.2%
Annual growth 5.1%

6629 Ambulance

Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 39 / 1
Availability Retired
6629 LEGO Ambulance
Retail $3.25
Value $147.32
Growth  +4432.9%
Annual growth 5.8%

6630 Bucket Loader

Theme / Subtheme Town / Construction
Year 1981
Pieces / Minifigs 34 / 1
Availability Retired
6630 LEGO Construction Bucket Loader
Retail $2.49
Value $87.77
Growth  +3424.9%
Annual growth 6.0%

6650 Fire and Rescue Van

Theme / Subtheme Town / Fire
Year 1981
Pieces / Minifigs 46 / 1
Availability Retired
6650 LEGO Fire and Rescue Van
Retail $4.49
Value $196.25
Growth  +4270.8%
Annual growth 8.8%

6680 Ambulance

Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 63 / 2
Availability Retired
6680 LEGO Ambulance
Retail $5.99
Value $264.25
Growth  +4311.5%
Annual growth 5.7%

6681 Police Van

Theme / Subtheme Town / Police
Year 1981
Pieces / Minifigs 82 / 1
Availability Retired
6681 LEGO Police Van
Retail $4.49
Value $175.00
Growth  +3797.6%
Annual growth 11.0%

6691 Red Cross Helicopter

Theme / Subtheme Town / Medical
Year 1981
Pieces / Minifigs 107 / 2
Availability Retired
6691 LEGO Red Cross Helicopter
Retail $11.99
Value $335.03
Growth  +2694.2%
Annual growth 7.7%

6801 Moon Buggy

Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 22 / 1
Availability Retired
6801 LEGO Moon Buggy
Retail $1.99
Value $159.26
Growth  +7903.0%
Annual growth 6.5%

6822 Space Digger

Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 33 / 1
Availability Retired
6822 LEGO Space Digger
Retail $2.99
Value $203.12
Growth  +6693.3%
Annual growth 6.4%

6842 Small Space Shuttle Craft

Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 46 / 1
Availability Retired
6842 LEGO Small Space Shuttle Craft
Retail $3.99
Value $196.11
Growth  +4815.0%
Annual growth 5.4%

6870 Space Probe Launcher

Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 60 / 1
Availability Retired
6870 LEGO Space Probe Launcher
Retail $7.49
Value $340.68
Growth  +4448.5%
Annual growth 4.2%

6927 All-Terrain Vehicle

Theme / Subtheme Space / Classic
Year 1981
Pieces / Minifigs 170 / 2
Availability Retired
6927 LEGO All-Terrain Vehicle
Retail $12.99
Value $607.61
Growth  +4577.5%
Annual growth 7.3%