LEGO Basic Building Set
Set #504 · 1985 · 41 pieces · Starter build
Set Details
- Set Number
- 504
- Name
- Basic Building Set
- Theme
- Universal Building Set
- Year
- 1985
- Pieces
- 41
- Complexity
- Starter
- Build Time
- 10-20 minutes
- Ages
- 4+
- Type
- Play-focused
About LEGO Basic Building Set
LEGO Basic Building Set (set #504) is a quick, accessible build with 41 pieces from the Universal Building Set theme, released in 1985. The Universal Building Set line features classic brick assortments for general building. This is a starter-level build suitable for ages 4+, with an estimated build time of 10-20 minutes. This set dates from the 1980s, widely considered LEGO's golden age of original themes.
Finding Instructions
Instructions for older sets like #504 (1985) may not always be available on LEGO.com. Try searching the set number directly, or upload a photo of the bricks to LegoFinder — the AI can identify vintage sets from their parts.
Basic Building Set FAQ
More Universal Building Set Sets
Also Released in 1985
Need Instructions for Basic Building Set?
Upload a photo of your LEGO Basic Building Set set and get the building instructions PDF in seconds.
Upload a Photo Now