Most Valuable Dacta LEGO Sets

The most valuable Dacta LEGO sets 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 Community Workers at $4,800. The top 5 alone account for about 48% 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	Community Workers Dacta · 1985	$4,800	+15905%	$41.74
2	Technic Control 1 Dacta · 1986	$3,429	+2349%	$8.45
3	Dacta Space Theme Set Dacta · 1991	$2,646	+3208%	$4.92
4	Castle Set Dacta · 1997	$2,500	+3837%	$7.79
5	Control Lab Building Set Dacta · 1993	$1,715	+1051%	$3.25
6	Adventurers combined set Dacta · 1998	$1,395	+1463%	$464.94
7	Basic Vehicles - 78 elements Dacta · 1986	$1,075	+10661%	$11.44
8	Technology Resource Set Dacta · 1995	$1,028	+586%	$0.59
9	LEGO Composing Set Dacta · 1990	$990	—	$2.05
10	Vehicles Dacta · 1985	$743	+1251%	$3.66
11	Pneumatic Rubber Bands and Pneumatic Tubing Dacta · 1992	$654	—	$4.54
12	Elementary School Project Set Dacta · 1984	$600	+650%	$0.68
13	Hospital Dacta · 1993	$581	+675%	$1.11
14	Lego Educational Storage Cloth Dacta · 1979	$528	+5180%	$527.50
15	Large LEGO® Basic Set Dacta · 1985	$518	+475%	$0.67
16	Community Vehicles Dacta · 1993	$453	+557%	$0.61
17	Town Scene Mosaics Dacta · 1988	$390	+1849%	$4.81
18	Educational Duplo Building Set Dacta · 1980	$390	+766%	$5.73
19	Technic Control II Dacta · 1986	$370	+94%	$0.80
20	Circus Dacta · 1988	$343	—	$5.71
21	Theme Set Dacta · 1991	$328	+557%	$0.36
22	Technic Control Centre Dacta · 1987	$300	+501%	$0.64
23	Mechanical Engineering Dacta · 2003	$296	+97%	$0.93
24	Town Environment Dacta · 1991	$280	+133%	$0.45
25	Mosaic Set Dacta · 1984	$274	+1638%	—
26	Control Lab Serial Interface & Adapter Dacta · 1995	$268	+572%	$134.20
27	Amusement Park Set Dacta · 1998	$256	+156%	$0.85
28	People Dacta · 1991	$255	+538%	$7.09
29	Early Simple Machines II Set Dacta · 1998	$253	+172%	$2.55
30	Large LEGO Basic Set Dacta · 1991	$233	—	$0.37
31	XL Duplo Bulk Set Dacta · 1993	$230	+155%	$0.42
32	Mosaic Set Dacta · 1985	$225	-10%	$1.18
33	Control System Building Set Dacta · 1993	$215	+207%	$0.97
34	Dacta Buildings Dacta · 1981	$204	+191%	$0.51
35	Universal School Set Dacta · 1997	$195	+164%	$0.27
36	Farm Set Dacta · 1986	$194	+391%	$2.36
37	House Accessories Dacta · 1985	$180	+800%	$0.98
38	Town Set Dacta · 1997	$179	—	$0.43
39	House Accessories Dacta · 1976	$173	+1090%	$0.85
40	Mini Basic Bricks - 29 elements Dacta · 1986	$170	+2737%	$5.86
41	Denken mit Lego Dacta · 1972	$169	+747%	$0.19
42	Community Workers Dacta · 1996	$168	+432%	$0.92
43	Animal Mosaic Puzzle Dacta · 1987	$163	+1716%	$2.04
44	Manual Control Set 1 Dacta · 1986	$154	+669%	$3.34
45	Technology Activity Set (Manufacturing Systems Set) Dacta · 1994	$150	—	$0.50
46	Technic II Powered Machines Set Dacta · 1984	$149	+87%	$0.54
47	Technic I Simple Machines Set Dacta · 1982	$148	+98%	$0.83
48	Denken mit Lego Dacta · 1972	$137	+1276%	$0.55
49	Basic Pack Dacta · 1984	$135	+93%	$0.34
50	LEGO Technic and Pneumatic Elements Dacta · 1992	$128	+246%	$1.03