1. Sets
  2. 1973
  3. Universal Building Set

LEGO 1973 / Universal Building Set Sets

In 1973, LEGO released 11 Universal Building Set sets in the subtheme Basic Set, all of these sets have been retired.
Most valuable 1973 Universal Building Set set
4-3 Basic Set $881.15
Largest 1973 Universal Building Set set
8-3 Basic Set #8 776 pieces
Most owned 1973 Universal Building Set set
105-2 Building Set

1-7 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 107
Availability Retired
1-7 LEGO Basic Set

2-7 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 184
Availability Retired
2-7 LEGO Basic Set
Retail $7.99
Value $223.91
Growth  2702.4%
Annual growth 6.8%

3-4 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 184
Availability Retired
3-4 LEGO Basic Set
Retail $7.99
Value $217.32
Growth  2619.9%
Annual growth 3.4%

4-3 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 230
Availability Retired
4-3 LEGO Basic Set
Retail $8.99
Value $881.15
Growth  9701.4%
Annual growth 9.4%

5-3 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 349
Availability Retired
5-3 LEGO Basic Set
Retail $6.99
Value $112.16
Growth  1504.6%
Annual growth 4.7%

6-3 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 349
Availability Retired
6-3 LEGO Basic Set
Retail $12.99

7-3 Basic Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 415
Availability Retired
7-3 LEGO Basic Set
Retail $15.99
Value $228.75
Growth  1330.6%
Annual growth 5.4%

8-3 Basic Set #8

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 776
Availability Retired
8-3 LEGO Basic Set #8
Retail $19.00
Value $514.84
Growth  2609.7%
Annual growth 6.7%

105-2 Building Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 149
Availability Retired
105-2 LEGO Building Set
Value $96.03

115 Building Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 190
Availability Retired
115 LEGO Building Set
Value $229.06

135 Building Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1973
Pieces 338
Availability Retired
135 LEGO Building Set
Retail $7.89
Value $17.29
Growth  119.1%
Annual growth 7.7%
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Year Details

Year
1973
Theme
Universal Building Set
Subthemes
1
Sets
11   (all retired)

Year Pricing

Retail
~$87.83
New/Sealed
Value
~$2,520.51

Unfortunately we don't have accurate retail and value pricing for all sets released in 1973.
Used
Value
~$714.73

Subtheme Pricing

1973 / Universal Building Set
Annual growth
Basic Set
+5.40%

Subthemes

1973 / Universal Building Set
Sets
Basic Set
11

Community Stats

The following are the top 10 most owned 1973 Universal Building Set sets by LEGO collectors.
#1Building Set
#2Building Set
#3Basic Set
#4Building Set
#5Basic Set #8
#6Basic Set
#7Basic Set
#8Basic Set
#9Basic Set
#10Basic Set

About LEGO Universal Building Set

LEGO's Universal Building Sets theme was released as early as 1966 but it was not until 1973 that the Basic LEGO sets became known as Universal Building Sets. These sets were produced in two set version numbers, the first was for sets that were sold in the UK, Europe, Canada and Australia. The other version numbers, but for the same exact set with the same box artwork was released in the United States. Most, but not all sets between 1973 and 1981 were sold in both regions.
1973 LEGO Sets
In 1973, LEGO released several new sets and themes, including the LEGO Town theme, which introduced the first minifigures with movable arms and legs. This was a major innovation for LEGO, as it allowed for much more realistic and detailed play scenarios. 1973 was also the year that LEGO introduced the LEGO DUPLO line. In addition to these new products, 1973 saw the release of several other popular LEGO sets and themes, such as the LEGO Castle theme and the LEGO Space theme. These sets, along with the new minifigures and DUPLO bricks, helped to cement LEGO's position as one of the leading toy brands in the world.