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20 LEGO Basic Building Set thumbnail image

20 LEGO Basic Building Set
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20 LEGO Basic Building Set
  • Basic Building Set thumbnail
  • Basic Building Set thumbnail
  • Basic Building Set thumbnail

LEGO 20 Basic Building Set is a vintage Basic set from 1976 valued at $96 for new and sealed sets, up 637% from an original retail price of $12.99. Annual appreciation has averaged 3.46% since release. On the used market, values range from $25 to $34 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since June 2016. High accuracy
LEGO 20 Basic Building Set is a 217 piece Basic set released in 1976. It was the European counterpart to set 111 Building Set, which was sold only in the United States. The set provides a broad assortment of standard bricks, roof elements, plates, and windows typical of mid 1970s universal building boxes. Its selection supports construction of small houses, vehicles, and simple geometric models without theme specific components. The packaging followed the era’s Basic line style with model suggestions displayed on the box front. Distribution covered Europe, the United Kingdom, Canada, and Australia.

A new and sealed Basic Building Set is currently valued at around $96, with annual growth of approximately 2%, which is lower than other Basic sets. The average used price is $28 for those in good overall condition. New and sealed listings currently range from $89 to $149. Based on current trends, this set could be valued near $99 within the next year.
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For Sale (New/Sealed)

 (US) #320 Basic Building Set 1985 VINTAGE Complete w/ Sealed BOX NOS
BrickEconomy Choice
$88.88
(US) NOS LEGO #320 Basic Building Set 1985 VINTAGE Complete w/ Sealed BOX $89.99
-6.1%
(ES) New in sealed box (this set was made without polybags).If you want to know shipping c... $114.71
+19.8%
(DE) 20 Universal Building Set Unopened New MISB Sealed Toy $173.51
+81.1%
All regions

For Sale (Used)

 (US) Used - Basic: Building Set, Trial Size Offer (1965)
$24.99
--12.0%
(US) Used - Vintage 1990 Complete LEGO 20 Pieces Basic Building Set 1676 Special Trial Off...
$25.95
--8.6%
(US) Used - Classic Vintage Universal Building Set Basic Set 30-1 (1976) near complete
$29.99
(US) Used - Vtg 1974 LEGO Basic Universal Building Set # 135 (338 Pc Set)
$32.00
(US) Used - VINTAGE 1966 LEGO BUILDING TOY 205 STARTER SET IN ORIGINAL BOX complete
$35.00
(NL) Used - Vintage Lego Basic Building set 520-1 100% complete+ instructions + 1985
$39.99

Related Sets

111 Building Set

Theme / Subtheme Universal Building Set / Basic Set
Year 1977
Pieces 173
Availability Retired
111 LEGO Building Set
Retail $12.99
Value $154.65
Growth  +1090.5%
Annual growth 3.4%

More sets in Basic

912 Advanced Basic Set with Motor

Theme Basic
Year 1976
Pieces / Minifigs 471 / 3
Availability Retired
912 LEGO Advanced Basic Set with Motor
Retail $36.99
Value $458.68
Growth  +1140.0%
Annual growth 5.2%

911 Advanced Basic Set

Theme Basic
Year 1976
Pieces / Minifigs 401 / 4
Availability Retired
911 LEGO Advanced Basic Set
Retail $24.99
Value $573.70
Growth  +2195.7%
Annual growth 6.5%

50 Basic Building Set

Theme Basic
Year 1976
Pieces 390
Availability Retired
50 LEGO Basic Building Set
Retail $19.99
Value $562.72
Growth  +2715.0%
Annual growth 6.9%

910 Advanced Basic Set

Theme Basic
Year 1976
Pieces / Minifigs 283 / 3
Availability Retired
910 LEGO Advanced Basic Set
Retail $22.99
Value $480.22
Growth  +1988.8%
Annual growth 6.3%

30 Basic Building Set

Theme Basic
Year 1976
Pieces 258
Availability Retired
30 LEGO Basic Building Set
Retail $19.99
Value $197.72
Growth  +889.1%
Annual growth 6.4%

40 Basic Building Set

Theme Basic
Year 1976
Pieces 258
Availability Retired
40 LEGO Basic Building Set
Retail $16.99
Value $250.84
Growth  +1376.4%
Annual growth 5.5%

10 Basic Building Set

Theme Basic
Year 1976
Pieces 152
Availability Retired
10 LEGO Basic Building Set
Retail $9.75
Value $223.65
Growth  +2193.8%
Annual growth 6.5%

Weetabix House 1

Theme Basic
Year 1976
Pieces / Minifigs 143 / 1
Availability Retired
LEGO Weetabix House 1
Retail $2.50

Weetabix House 2

Theme Basic
Year 1976
Pieces / Minifigs 140 / 2
Availability Retired
LEGO Weetabix House 2
Retail $2.50
Value $260.18
Growth  +10307.2%
Annual growth 6.8%

Weetabix Windmill

Theme Basic
Year 1976
Pieces / Minifigs 119 / 2
Availability Retired
LEGO Weetabix Windmill
Retail $2.50
Value $227.82
Growth  +9012.8%
Annual growth 9.5%

108 Battery box

Theme Basic
Year 1976
Pieces 1
Availability Retired
108 LEGO Battery box
Retail $4.00
Value $200.00
Growth  +4900.0%
Annual growth 8.5%

My Collection

Basic Building Set Reviews

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About Basic

The LEGO Basic theme, which began in the 1970s, was designed to be a more general, non-thematic series of sets. Unlike the themed sets that revolve around specific stories, characters, or concepts (e.g., space, city, or pirates), the Basic theme provided a collection of standard LEGO bricks and pieces, often in a variety of colors. The goal was to encourage free building and creativity without the confines of a specific theme or narrative.
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Basic Sets are the basis of any LEGO collection. The contents are so varied that children can build whatever they imagine. And if they need some inspiration they can find it in pictures on the boxes. Unlike Basic Sets the Model Sets are designed to build a particular model from simple instructions. But imagination will create other models from the same bricks.
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