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Sets
Basic
Basic Building Set

303 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 303-1
Availability: InStock
Rating: 4.5 (11 reviews)

Images 1

LEGO 303 Basic Building Set is a vintage Basic set from 1987 valued at $22 for new and sealed sets, up 448% from an original retail price of $3.99. Annual appreciation has averaged 4.46% since release. On the used market, values range from $15 to $20 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since September 2017. High accuracy

LEGO 303-1 Basic Building Set is a Basic theme set released in 1987, containing 33 pieces. It includes a selection of red, blue, yellow, and black bricks in common sizes, such as 2x2, 2x3, 2x4, and a 2x10. Notable elements are printed yellow bricks featuring offset eyes and a double-sided smile/frown, enabling simple character builds.

A new and sealed Basic Building Set is currently valued at around $22, with annual growth of approximately 4%. The average used price is $18 for those in good overall condition. New and sealed listings currently range from $24 to $30. Based on current trends, this set could be valued near $23 within the next year.

All regions

All regions 3
United States 3

For Sale (New/Sealed)

	(US) Classic Creative Supplement 10693 (303 Pcs) - NEW Factory Sealed RETIRED	BrickEconomy Choice $21.99
	(US) Classic Blocks Set 10693 Building Toy Set	$24.00 +9.8%
	(US) Classic Creative Supplement Bright (10694) 303 Pcs IDEAS Included	$29.99 +37.2%

More sets in Basic


	557 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 711 / 2 Availability Retired Buy this set at Bricklink	Retail $15.49 Value $355.67 Growth +2196.1% Annual growth 3.9% I own this set I want this set

	357-2 Basic Building Set Theme Basic Year 1987 Pieces 681 Availability Retired Buy this set at Bricklink	Retail $27.00 Value $45.29 Growth +67.7% Annual growth 5.3% I own this set I want this set

	547 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 563 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $14.99 Value $702.48 Growth +4586.3% Annual growth 10.4% I own this set I want this set

	1615 Basic Set Theme Basic Year 1987 Pieces / Minifigs 382 / 1 Availability Retired Buy this set at Bricklink	Retail $20.00 Value $77.27 Growth +286.4% Annual growth 3.5% I own this set I want this set

	1613 Basic Set Theme Basic Year 1987 Pieces / Minifigs 359 / 2 Availability Retired Buy this set at Bricklink	Retail $20.00 Value $103.85 Growth +419.3% Annual growth 4.3% I own this set I want this set

	347-2 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 328 / 2 Availability Retired Buy this set at Bricklink	Retail $19.99 Value $59.99 Growth +200.1% Annual growth 12.7% I own this set I want this set

	537 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 259 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $20.00 Value $149.99 Growth +650.0% Annual growth 5.2% I own this set I want this set

	1575-2 Basic Set with Board Game Theme Basic Year 1987 Pieces / Minifigs 230 / 1 Availability Retired Buy this set at Bricklink	Retail $19.99 I own this set I want this set

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	527 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 192 / 1 Availability Retired Buy this set at eBay	Retail $12.95 Value $57.67 Growth +345.3% Annual growth 5.0% I own this set I want this set

	517-2 Basic Building Set Theme Basic Year 1987 Pieces 115 Availability Retired Buy this set at eBay	Retail $9.95 Value $91.74 Growth +822.0% Annual growth 5.9% I own this set I want this set

	1599 Airliner Theme Basic Year 1987 Pieces 102 Availability Retired Buy this set at eBay	Retail $4.99 Value $148.00 Growth +2865.9% Annual growth 6.6% I own this set I want this set

	327 Basic Building Set Theme Basic Year 1987 Pieces / Minifigs 102 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $15.99 Value $35.00 Growth +118.9% Annual growth 3.4% I own this set I want this set

	317-2 Basic Building Set Theme Basic Year 1987 Pieces 68 Availability Retired Buy this set at Bricklink	Retail $5.95 Value $31.36 Growth +427.1% Annual growth 4.9% I own this set I want this set

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	503 Basic Building Set Theme Basic Year 1987 Pieces 34 Availability Retired Buy this set at eBay	Retail $4.95 Value $16.01 Growth +223.4% Annual growth 2.9% I own this set I want this set

	1598 Trial Size Offer Theme Basic Year 1987 Pieces / Minifigs 33 / 1 Availability Retired Buy this set at eBay	Retail $1.49 Value $44.87 Growth +2911.4% Annual growth 7.9% I own this set I want this set

	307 Basic Building Set Theme Basic Year 1987 Pieces 33 Availability Retired Buy this set at eBay	Retail $4.99 Value $30.72 Growth +515.6% Annual growth 4.8% I own this set I want this set

	1588 Basic Building Set Theme Basic Year 1987 Pieces 27 Availability Retired Buy this set at eBay	Retail $1.49 Value $9.46 Growth +534.9% Annual growth 3.1% I own this set I want this set

	1609 Ship Theme Basic Year 1987 Pieces 27 Availability Retired Buy this set at Bricklink	Retail $5.99 Value $91.81 Growth +1432.7% Annual growth 7.3% I own this set I want this set

	1607 Helicopter Theme Basic Year 1987 Pieces 25 Availability Retired Buy this set at eBay Bricklink	Retail $1.69 Value $4.72 Growth +179.3% Annual growth 5.7% I own this set I want this set

	1606 Red and Yellow Car Theme Basic Year 1987 Pieces 23 Availability Retired Buy this set at eBay	Retail $1.69 Value $11.96 Growth +607.7% Annual growth 5.8% I own this set I want this set

	1604 Basic Set Theme Basic Year 1987 Pieces 17 Availability Retired Buy this set at eBay Bricklink	Retail $8.99 Value $9.40 Growth +4.6% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

303-1

Name

Basic Building Set

Theme

Basic

Year

1987

Availability

Retired

Pieces

33 (PPP $0.12)

Set Pricing

Retail price

$3.99

New/Sealed

Value

$21.86

Growth

+447.87%

Annual growth

+4.46%

90-day change

2.15%

Used

Value

$18.14

Range

$15.32 - $19.76

Quick Buy

eBay

Buy

Lowest price

$21.99

Highest price

$29.99

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$21.86

1 year forecast

$22.84+4.46%

5 year forecast

$26.69+22.09%

$26

$27

303 Basic Building Set is projected to be valued between $26 - $27 within five years.

Insights

Released in the Basic theme and now retired, Basic Building Set 303 draws interest for its vintage printed face bricks and late-80s nostalgia, and sealed examples have seen post-retirement appreciation, but limited theme appeal and thin trading volume make it more of a supplemental vintage hold than a primary investment.

Set Facts

The set supports open-ended construction and integrates with other Basic sets from the period.

Basic Building Set Reviews

11 ratings

4.5

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.92% (this set +4.46%)

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

Community Stats

Basic Building Set currently ranks #367 out of the top most owned sets in Basic.

#1Building Plate, Green

#2X-Large Baseplate Grey

#3Brick Separator, Green

#4Universal Building Set

#5Basic Building Set

#367Basic Building Set

#368Basic Building Set

#369Basic Building Set

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)

$21.86

Value (in a year)

$22.84

Value (in 2 years)

$23.81

Accuracy

0.920300 High

Statistical Model

Value (today)

$25.58

Value (in a year)

$25.82

Value (in two years)

$26.06

Accuracy

0.206090 Very low

Used

Machine Learning/AI Model

Value (today)

$18.14

Value (low range)

$15.32

Value (high range)

$19.76

Accuracy

0.865300 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

Theme · Light

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