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Sets
Basic
Basic Building Set

550 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 550-1
Availability: InStock
Rating: 4.60 (18 reviews)

Images 2

LEGO 550 Basic Building Set is a vintage Basic set from 1985 valued at $426 for new and sealed sets, up 915% from an original retail price of $42.00. Annual appreciation has averaged 5.27% since release. On the used market, values range from $44 to $54 based on condition.

Set Value (New/Sealed)

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

LEGO 550-1 Basic Building Set is a Basic theme set released in 1985, containing 569 pieces and 2 Classic Town minifigures. It is a large general-purpose assortment designed for open-ended building typical of the Basic line. The set includes a broad selection of standard elements suitable for constructing simple structures, vehicles, and other everyday models. Its elements include a broad mix of bricks, slopes, plates, modified bricks, a wind-up motor with key, wheels & tires, windows, doors, string, propellers, and two 16×16 baseplates.

A new and sealed Basic Building Set is currently valued at around $426, with annual growth of approximately 4%. The average used price is $45 for those in good overall condition. New and sealed listings currently range from $425 to $450. Based on current trends, this set could be valued near $449 within the next year.

All regions

All regions 2
United States 1

For Sale (New/Sealed)

	(PL) 555 Basic Building Set (1983) - Brand New Sealed in Original Box	$425.00 -0.3%
	(US) Basic Building Set 350 - NEVER OPENED - Rare Set	BrickEconomy Choice $450.00 +5.5%

Minifigs

Basic Building Set contains 2 minifigs.

pln133

Female with Plain Red Torso

More sets in Basic


	540 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 626 / 2 Availability Retired Buy this set at Bricklink	Retail $19.95 Value $97.36 Growth +388.0% Annual growth 3.3% I own this set I want this set

	740 Basic Building Set Theme Basic Year 1985 Pieces 516 Availability Retired Buy this set at eBay	Retail $60.00 Value $279.67 Growth +366.1% Annual growth 3.8% I own this set I want this set

	730-2 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 429 / 2 Availability Retired Buy this set at Bricklink	Retail $30.00 Value $123.95 Growth +313.2% Annual growth 3.5% I own this set I want this set

	720 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 334 / 1 Availability Retired Buy this set at Bricklink	Retail $25.00 Value $250.00 Growth +900.0% Annual growth 5.4% I own this set I want this set

	350-2 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 311 / 4 Availability Retired Buy this set at eBay	Retail $14.95 Value $390.68 Growth +2513.2% Annual growth 8.7% I own this set I want this set

	530 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 269 / 2 Availability Retired Buy this set at Bricklink	Retail $14.95 Value $103.74 Growth +593.9% Annual growth 3.6% I own this set I want this set

	340 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 214 / 2 Availability Retired Buy this set at eBay	Retail $2.95 Value $77.45 Growth +2525.4% Annual growth 8.3% I own this set I want this set

	1962 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 211 / 1 Availability Retired Buy this set at eBay	Retail $15.00 Value $266.31 Growth +1675.4% Annual growth 4.3% I own this set I want this set

	1520 Basic Building Set with Storage Case Theme Basic Year 1985 Pieces / Minifigs 210 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $16.49 Value $208.98 Growth +1167.3% Annual growth 6.4% I own this set I want this set

	520 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 165 / 1 Availability Retired Buy this set at eBay	Retail $12.95 Value $49.47 Growth +282.0% Annual growth 3.3% I own this set I want this set

	330 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 156 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $9.95 Value $119.83 Growth +1104.3% Annual growth 6.3% I own this set I want this set

	510 Basic Building Set Theme Basic Year 1985 Pieces 106 Availability Retired Buy this set at eBay Bricklink	Retail $3.50 Value $57.82 Growth +1552.0% Annual growth 6.2% I own this set I want this set

	320 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 77 / 1 Availability Retired Buy this set at eBay	Retail $7.97 Value $46.84 Growth +487.7% Annual growth 3.8% I own this set I want this set

	508 Basic Building Set Theme Basic Year 1985 Pieces 66 Availability Retired Buy this set at Bricklink	Retail $4.95 Value $20.12 Growth +306.5% Annual growth 2.3% I own this set I want this set

	310-4 Basic Building Set Theme Basic Year 1985 Pieces 46 Availability Retired Buy this set at eBay	Retail $5.00 Value $35.52 Growth +610.4% Annual growth 2.9% I own this set I want this set

	504 Basic Building Set Theme Basic Year 1985 Pieces 41 Availability Retired Buy this set at eBay	Retail $3.95 Value $59.49 Growth +1406.1% Annual growth 6.4% I own this set I want this set

	1548-2 Helicopter Theme Basic Year 1985 Pieces 36 Availability Retired Buy this set at eBay	promotional Value $159.37 Annual growth 5.2% I own this set I want this set

	1562-2 Basic Building Set Theme Basic Year 1985 Pieces 32 Availability Retired Buy this set at eBay	Retail $4.00 Value $9.87 Growth +146.8% Annual growth 2.2% I own this set I want this set

	1965 Building Set Trial Size Offer Theme Basic Year 1985 Pieces / Minifigs 32 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $1.50 Value $125.00 Growth +8233.3% Annual growth 12.2% I own this set I want this set

	304 Basic Building Set Theme Basic Year 1985 Pieces 31 Availability Retired Buy this set at eBay	Retail $2.00 Value $16.18 Growth +709.0% Annual growth 3.5% I own this set I want this set

	308-2 Basic Building Set Theme Basic Year 1985 Pieces 30 Availability Retired Buy this set at eBay Bricklink	Retail $3.00 Value $29.53 Growth +884.3% Annual growth 5.7% I own this set I want this set

	1964 Basic Building Set Theme Basic Year 1985 Pieces 27 Availability Retired Buy this set at eBay	Retail $1.49 Value $43.67 Growth +2830.9% Annual growth 5.6% I own this set I want this set

	1546 Aircraft Theme Basic Year 1985 Pieces / Minifigs 26 / 1 Availability Retired Buy this set at Bricklink	promotional Value $102.28 Annual growth 10.3% I own this set I want this set

	1551 Duck Theme Basic Year 1985 Pieces 6 Availability Retired Buy this set at eBay	Retail $0.40 Value $5.26 Growth +1215.0% Annual growth 8.4% I own this set I want this set

	293-2 Basic Building Set Theme Basic Year 1985 Availability Retired	Retail $7.00 I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

550-1

Name

Basic Building Set

Theme

Basic

Year

1985

Availability

Retired

Pieces

569 (PPP $0.07)

Minifigs

2 (Value $34.02)

Set Pricing

Retail price

$42.00

New/Sealed

Value

$426.44

Growth

+915.33%

Annual growth

+5.27%

90-day change

16.49%

Used

Value

$44.82

Range

$43.58 - $53.78

Quick Buy

eBay

Buy

Lowest price

$425.00

Highest price

$450.00

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$426.44

1 year forecast

$448.92+5.27%

5 year forecast

$537.80+26.11%

$522

$552

550 Basic Building Set is projected to be valued between $522 - $552 within five years.

Insights

Released in the 1980s and now retired, Basic Building Set 550 draws on nostalgia for Classic-era elements and scarce sealed boxes, and its wind-up motor and included baseplates make intact examples notable, while generic assortment overlap and condition sensitivity temper longer-term upside.

Set Facts

The set includes two classic LEGO Town-style minifigures, one male and one female.

Regional Retail Prices

United States

$42.00

United Kingdom

£33.00

Basic Building Set Reviews

18 ratings

4.6

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.93% (this set +5.27%)

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

Community Stats

Basic Building Set currently ranks #69 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

#69Basic Building Set

#70Aircraft

#71Basic 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)

$426.44

Value (in a year)

$448.92

Value (in 2 years)

$471.47

Accuracy

0.820000 High

Statistical Model

Value (today)

$423.82

Value (in a year)

$445.80

Value (in two years)

$467.83

Accuracy

0.504034 Medium

Used

Machine Learning/AI Model

Value (today)

$44.82

Value (low range)

$43.58

Value (high range)

$53.78

Accuracy

0.765000 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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