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Basic
Basic Building Set

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503 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 503-1
Rating: 4.5 (13 reviews)

Images 1

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since December 2019. Low accuracy

LEGO 503 Basic Building Set was a 34 piece Basic set released in 1987. The current value for a new, factory sealed Basic Building Set is estimated around $13. The current used prices for Basic Building Set can be found in the range of $10 and $17 depending on the set's condition, with an average price of $10 if it is in good overall condition.

All regions

All regions 1
European Union 1

For Sale (New/Sealed)

(BE) MISB with origenal price stiker at the flap

$13.00

-2.5%

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More sets in Basic


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My Collection

I own this set

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Set Details

Set number

503-1

Name

Basic Building Set

Theme

Basic

Year

1987

Availability

Retired

Pieces

Set Pricing

New/Sealed

Value

$13.33

Used

Value

$10.00

Range

$9.80 - $16.88

Quick Buy

Bricklink

Buy

Lowest price

$13.00 (BE)

*Listings are for new/sealed sets.

Set Predictions

1 year forecast

$14.22

5 year forecast

$16.99

$17

503 Basic Building Set is estimated to be worth between $17 - $17 in 5 years (new/sealed).

Basic Building Set Reviews

13 ratings

4.4

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+4.74%

This set's annual growth (CAGR) vs. subtheme

Community Stats

Basic Building Set currently ranks #376 out of the top most owned sets in Basic.

#1Building Plate, Green

#2X-Large Baseplate Grey

#3Brick Separator, Green

#4Santa Claus

#5Universal Building Set

#376Basic Building Set

#377Basic Building Set

#378Large Dinosaur Bucket

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.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$13.33

Value (in a year)

$14.22

Value (in 2 years)

$15.01

Accuracy

0.820000 High

Statistical Model

Value (today)

$13.26

Value (in a year)

$13.27

Value (in two years)

$13.29

Accuracy

0.200344 Very low

Used

Machine Learning/AI Model

Value (today)

$10.00

Value (low range)

$9.80

Value (high range)

$16.88

Accuracy

0.765000 High

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