LEGO 1031 Building Cards is a vintage Dacta set from 1983 valued at $25 for new and sealed sets, up 60% from an original retail price of $15.75. Annual appreciation has averaged 2.23% since release. On the used market, values range from $12 to $16 based on condition.
LEGO 1031-1 Building Cards is a Dacta set released in 1983, containing 20 pieces in the form of printed building cards. Intended for classroom use within the LEGO Dacta program, the cards provide model prompts and construction tasks to guide activities with standard LEGO bricks. The set served as a teaching aid rather than a traditional build, supporting structured lessons in early LEGO education kits.
A new and sealed Building Cards is currently valued at around $25, with annual growth of approximately 2%, which is lower than other Dacta sets. The average used price is $13 for those in good overall condition. New and sealed listings currently range from $23 to $37. Based on current trends, this set could be valued near $26 within the next year.