Most Valuable LEGO Sets of 1984

The most valuable LEGO sets released in 1984, by current market value. This list ranks 50 sets by current BrickPicker value, refreshed from live market data. Right now the top spot belongs to King's Castle at $2,600. The top 5 alone account for about 40% of the value on this list. Every entry links to its full price history and marketplace listings. Updated 2026-07-22.

#	Name	Value	Growth	/ piece
1	King's Castle Castle · 1984	$2,600	+4828%	$3.91
2	Knight's Castle Castle · 1984	$1,739	+6344%	$4.26
3	Inter-Galactic Command Base Space · 1984	$1,459	+4012%	$4.45
4	Cargo Centre Town · 1984	$1,400	+3156%	$2.53
5	Robot Command Centre Space · 1984	$1,251	+4073%	$4.24
6	Siege Tower Castle · 1984	$680	+3786%	$3.15
7	Motorcycle Shop Town · 1984	$625	+3471%	$3.65
8	Semi Truck Town · 1984	$613	+4705%	$3.95
9	Fuel Tanker Town · 1984	$600	+4606%	$6.19
10	Elementary School Project Set Dacta · 1984	$600	+650%	$0.68
11	Mail Van Town · 1984	$575	—	$8.84
12	Tanker Truck Town · 1984	$526	+5028%	$4.96
13	Excavator Technic · 1984	$461	+903%	$1.33
14	Town Value Pack Town · 1984	$428	—	$5.49
15	Uranium Search Vehicle Space · 1984	$400	+1901%	$2.01
16	Fire & Rescue Squad Town · 1984	$350	+2238%	$3.54
17	Surface Rover Space · 1984	$345	+34795%	$16.45
18	Jousting Knights Castle · 1984	$325	+6090%	$8.78
19	Blacksmith Shop Castle · 1984	$315	+3305%	$3.42
20	Backhoe Town · 1984	$282	+3789%	$3.20
21	Lunar Rocket Launcher Space · 1984	$280	+2704%	$2.89
22	Car with Camper Town · 1984	$279	+3004%	$2.56
23	Mosaic Set Dacta · 1984	$274	+1638%	—
24	Supply Wagon Castle · 1984	$271	+8962%	$7.74
25	Horse Cart Castle · 1984	$268	+5270%	$6.38
26	Basic Set Town Duplo · 1984	$260	+2067%	$4.90
27	Star Patrol Launcher Space · 1984	$255	+3304%	$4.05
28	Tri-Star Voyager Space · 1984	$247	+5398%	$3.58
29	Wally Walrus Fabuland · 1984	$246	+4593%	$41.07
30	Construction Workers Town · 1984	$237	—	$11.83
31	Town 3-Pack Town · 1984	$213	—	$2.20
32	Paddy Wagon Fabuland · 1984	$211	+1912%	$23.47
33	Catapult Castle · 1984	$210	+3414%	$2.54
34	Universal Set Technic · 1984	$210	+2007%	$1.77
35	Basic Building Set with Storage Case Basic · 1984	$206	+1270%	$2.48
36	Police Patrol Squad Town · 1984	$181	+2691%	$2.36
37	Mailman on Motorcycle Town · 1984	$176	+4305%	$6.76
38	Constable Clarke Fabuland · 1984	$158	+2906%	$31.57
39	Technic II Powered Machines Set Dacta · 1984	$149	+87%	$0.54
40	Auto & Tire Repair Town · 1984	$149	+2387%	$2.57
41	Space Dart I Space · 1984	$147	+3185%	$3.07
42	Fork-Lift Truck Technic · 1984	$139	+457%	$0.52
43	Service Station Fabuland · 1984	$138	+589%	$2.64
44	Supplementary Set Duplo · 1984	$137	+956%	$5.48
45	Basic Pack Dacta · 1984	$135	+93%	$0.34
46	Fire Truck Town · 1984	$115	+1548%	$3.03
47	Airport Fabuland · 1984	$100	+351%	$2.05
48	Sea Explorer Duplo · 1984	$98	+290%	$2.71
49	Basic Set House Duplo · 1984	$87	+773%	$5.82
50	Road Racer Town · 1984	$81	+3964%	$4.04