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LEGO Basic Building Set

Set #347 · 1987 · 330 pieces · Moderate build

LEGO Basic Building Set set 347 instructions

Set Details

Set Number
347
Name
Basic Building Set
Year
1987
Pieces
330
Complexity
Moderate
Build Time
1-2 hours
Ages
8+
Type
Play-focused
LF
LegoFinder Editorial Team·Set data verified 2026·How we research sets

About LEGO Basic Building Set

LEGO Basic Building Set (set #347) is a detailed build with 330 pieces from the Universal Building Set theme, released in 1987. The Universal Building Set line features classic brick assortments for general building. This is a moderate-level build suitable for ages 8+, with an estimated build time of 1-2 hours. This set dates from the 1980s, widely considered LEGO's golden age of original themes.

Set Highlights

  • 330 pieces at moderate complexity — a 1-2 hours build.
  • Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
  • Play-focused build with interactive elements designed for 8+ builders.
  • Vintage 1987 release — increasingly rare in complete, unplayed condition.

Who Is This Set For?

Gift for Ages 8+

The moderate difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 8+ age range.

Weekend Build Project

330 pieces with an estimated 1-2 hours fits comfortably into a focused afternoon or weekend session.

Expanding a Universal Building Set Collection

A solid addition for collectors building out their Universal Building Set shelf. Introduces parts and builds that complement other sets from the same line.

Build Tips

1

A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.

2

Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.

3

Vintage sets may show slight color variation from modern LEGO due to different ABS formulas. This is normal and part of the set's character, not a defect.

Finding Instructions

Instructions for older sets like #347 (1987) 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

Related Reading

More Universal Building Set Sets

See all Universal Building Set

Also Released in 1987

All 1987 sets →

Similar Build Difficulty

Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.

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