Building Set (145-1) is a Universal Building Set LEGO set released in 1974 with 412 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Universal Building Set sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 44 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1974 (52 years ago — may be retired)
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Catalog scale
412 parts listed · 44 inventory lines tracked
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Minifigures
No minifigs in inventory (brick-only or Technic set)
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~1,115 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
Related sets in this theme
Market value
No estimate on BrickID yet
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Parts in this set
44 parts · updating…
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Brick 1 x 13005 · ×4 · White -
Brick 1 x 13005 · ×14 · Red -
Brick 1 x 23004 · ×14 · White -
Brick 1 x 23004 · ×12 · Trans-Clear -
Brick 1 x 23004 · ×8 · Red -
Brick 1 x 63009 · ×4 · White -
Brick 10 x 20 with Bottom Tubes in single row around edge, with '+' Cross Support700d · ×2 · Green -
Brick 2 x 103006 · ×2 · White -
Brick 2 x 103006 · ×4 · Blue -
Brick 2 x 103006 · ×4 · Red -
Brick 2 x 2 without Inside Ridges3003a · ×4 · Blue -
Brick 2 x 2 without Inside Ridges3003a · ×16 · White -
Brick 2 x 2 without Inside Ridges3003a · ×16 · Red -
Brick 2 x 2 without Inside Ridges3003a · ×4 · Black -
Brick 2 x 2 without Inside Ridges3003a · ×10 · Yellow -
Brick 2 x 3 without Cross Supports3002a · ×12 · Yellow -
Brick 2 x 3 without Cross Supports3002a · ×2 · Blue -
Brick 2 x 3 without Cross Supports3002a · ×10 · White -
Brick 2 x 3 without Cross Supports3002a · ×4 · Red -
Brick 2 x 3 without Cross Supports3002a · ×2 · Black -
Brick 2 x 4 without Cross Supports3001a · ×12 · Black -
Brick 2 x 4 without Cross Supports3001a · ×38 · Yellow -
Brick 2 x 4 without Cross Supports3001a · ×16 · Blue -
Brick 2 x 4 without Cross Supports3001a · ×44 · White -
Brick 2 x 4 without Cross Supports3001a · ×40 · Red -
Brick 2 x 83007 · ×4 · Blue -
Brick Sloped 33° 2 x 2 Double3300 · ×3 · Red -
Brick Sloped 33° 2 x 4 Double3299 · ×3 · Red -
Brick Sloped 33° 3 x 23298 · ×20 · Red -
Brick Sloped 33° 3 x 43297 · ×20 · Red -
Brick Special 1 x 1 x 2 with Shutter Holder3581 · ×8 · White -
Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside7049bc01 · ×4 · Black -
Door 1 x 3 x 4 with Glass7930 · ×3 · White -
Door Frame 1 x 3 x 43579 · ×3 · Red -
Plant, Pine Tree, Large, 4 x 4 x 6 2/33471 · ×2 · Green -
Plate 4 x 63032 · ×4 · White -
Turntable 4 x 4 - Old Type Complete - Faceted3404ac01 · ×1 · White -
Tyre Smooth Old Style - Small132a · ×8 · Black -
Wheel Old with 4 Studs7039 · ×8 · Red -
![Window 1 x 2 x 2 Classic, Short Lip [with Glass]](https://cdn.rebrickable.com/media/parts/ldraw/4/3081cc01.png)
Window 1 x 2 x 2 Classic, Short Lip [with Glass]3081c01 · ×6 · Red -
Window 1 x 2 x 2 Shutter3582 · ×8 · Blue -
![Window 1 x 4 x 2 Classic with Short Sill [Complete]](https://cdn.rebrickable.com/media/parts/ldraw/4/453cc01.png)
Window 1 x 4 x 2 Classic with Short Sill [Complete]453cc01 · ×2 · Red -
![Window 1 x 4 x 2 Classic with Short Sill [Complete]](https://cdn.rebrickable.com/media/parts/ldraw/15/453cc01.png)
Window 1 x 4 x 2 Classic with Short Sill [Complete]453cc01 · ×3 · White -
Window 1 x 6 x 3 Panorama with Glass and Hollow Studs604c01 · ×4 · Red