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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 $362 for new and sealed sets, up 763% from an original retail price of $42.00. Annual appreciation has averaged 5.06% 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 $362, with annual growth of approximately 3%. The average used price is $45 for those in good overall condition. Based on current trends, this set could be valued near $381 within the next year.

All regions

All regions 1

For Sale (New/Sealed)

(PL) 555 Basic Building Set (1983) - Brand New Sealed in Original Box

$425.00

+17.3%

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 $96.92 Growth +385.8% 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 $298.67 Growth +397.8% Annual growth 4.0% 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 $123.45 Growth +311.5% 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 $323.57 Growth +2064.3% Annual growth 8.9% 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 $76.71 Growth +2500.3% 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 $260.25 Growth +1635.0% Annual growth 7.2% 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 $207.46 Growth +1158.1% 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 $48.57 Growth +275.1% 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 $118.97 Growth +1095.7% Annual growth 6.2% 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	Retail $3.50 Value $53.17 Growth +1419.1% 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 $42.25 Growth +430.1% Annual growth 4.0% 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 $19.74 Growth +298.8% 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 $29.52 Growth +490.4% Annual growth 2.8% 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 $58.90 Growth +1391.1% 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 $158.90 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 $10.05 Growth +151.3% Annual growth 2.3% 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 14.0% 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 $16.89 Growth +744.5% Annual growth 3.6% 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	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 $33.89 Growth +2174.5% Annual growth 4.4% 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 $101.22 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 $5.67 Growth +1317.5% Annual growth 8.5% 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 $32.49)

Set Pricing

Retail price

$42.00

New/Sealed

Value

$362.38

Growth

+762.81%

Annual growth

+5.06%

90-day change

1.73%

Used

Value

$44.82

Range

$43.58 - $53.78

Quick Buy

eBay

Buy

Lowest price

$425.00

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$362.38

1 year forecast

$380.73+5.06%

5 year forecast

$453.27+25.08%

$440

$466

550 Basic Building Set is projected to be valued between $440 - $466 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

+3.92% (this set +5.06%)

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

Community Stats

Basic Building Set currently ranks #66 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

#66Basic Building Set

#67Sea Eagle

#68Baseplate, Grey

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)

$362.38

Value (in a year)

$380.73

Value (in 2 years)

$399.13

Accuracy

0.820000 High

Statistical Model

Value (today)

$418.00

Value (in a year)

$439.33

Value (in two years)

$460.71

Accuracy

0.478414 Low

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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