LEGO Universal Building Set

Universal Building Set consists of 40 sets that ran from 1966 to 1977. Most sets were released in 1973 which accounted for 11 sets. It is comprised of 3 subthemes with the most sets in Basic Set which consists of 24 sets and has an annual growth of around 5.8%. As of today, the average annual growth of all the sets in Universal Building Set is around 5.4% per year.

Most valuable Universal Building Set set
088 4.5V Super Set - $2,191.67

Highest growth Universal Building Set set
990-2 Trees and Signs - 12608.00%

Largest Universal Building Set set
8-3 Basic Set #8 - 776 pieces

Most owned Universal Building Set set
901 Universal Motor 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.