LEGO 114 Building Set is a vintage Universal Building Set set from 1977 valued at $200 for new and sealed sets, up 700% from an original retail price of $24.99. Annual appreciation has averaged 4.81% since release. Used copies are valued between $68 and $105 depending on condition.
LEGO 114-1 Building Set is a Universal Building Set/Basic Set released in 1977, containing 390 pieces. It centers on freeform building with a wide assortment of classic bricks, slopes, plates, wheel assemblies, and Homemaker/Maxifigure components, including torso assemblies with interchangeable arms and printed heads featuring faces such as freckles, glasses, and smiles. The set includes large plant elements like green pine trees, as well as structural parts such as red fences and shutters, plus unique pieces including a black Homemaker hairpiece, yellow ladders, and plates designed for Maxifigure hand attachments. It was a U.S.-only release and is equivalent to set 50 Universal Building Set sold in Europe, the United Kingdom, Canada, and Australia.
A new and sealed Building Set is currently valued at around $200, with annual growth of approximately 5%. The average used price is $87 for those in good overall condition. Based on current trends, this set could be valued near $210 within the next year.