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Sets
Basic
Basic Building Set

525 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 525-1
Availability: InStock
Rating: 4.70 (32 reviews)

Images 6

LEGO 525 Basic Building Set is a vintage Basic set from 1990 valued at $160 for new and sealed sets, up 1132% from an original retail price of $12.99. Annual appreciation has averaged 6.46% since release. Used copies are valued between $12 and $14 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since September 2019. Very high accuracy

LEGO 525-1 Basic Building Set is a Basic theme set released in 1990, containing 181 pieces and 1 minifigure. It was packaged in a blue plastic storage box with a yellow handle. The assortment includes red bricks and plates in multiple sizes, various slopes and inverted slopes, a green 8 x 16 baseplate, windows, an antenna, flowers and stems, and a wheeled brick element for simple vehicles. A dark gray brick separator is also included.

A new and sealed Basic Building Set is currently valued at around $160, with annual growth of approximately 4%. The average used price is $12 for those in good overall condition. Based on current trends, this set could be valued near $169 within the next year. New and sealed listings currently range from $145 to $243.

All regions

All regions 4
United States 3
Canada 1

For Sale (New/Sealed)

	(US) Container is in Excellent Condition for its age. There is a partially removed sticke...	$135.00 -15.6%
	(US) Set 525 System Tote Sealed Box Rare Vintage 90s Basic 5+ Crisp NEW	BrickEconomy Choice $159.99
	(CA) New in Sealed BoxNo Price TagVery LITTLE Shelf WearBox in GREAT Condition	$163.80 +2.4%
	(US) #740 Basic Building Set Basic 1985	$300.00 +87.5%

All regions

All regions 5
United States 3
European Union 1
United Kingdom 1

For Sale (Used)

	(UK) Used - This set is complete (there are three flower heads attached to the stems in ea...	$10.80
	(US) Used - eBay listing for 525 Basic Building Set	$11.88
	(US) Used - all pieces and mini - no instructions or box, slight aging on some bricks	$12.00
	(US) Used - Good to great condition. Parts look great instructions are a little worn.	$12.95
	(NL) Used - Complete with instructions (very good condition), no box, no spare parts. Set ...	$14.22

Minifigs

Basic Building Set contains 1 minifig. The minifigure is exclusive to this set.

pln067

Male with Plain Black Torso

Exclusive

Value $4.50

More sets in Basic


	1639 Basic Building Set Theme Basic Year 1990 Pieces 669 Availability Retired Buy this set at eBay	Retail $19.99 Value $211.72 Growth +959.1% Annual growth 6.8% I own this set I want this set

	735 Basic Building Set Theme Basic Year 1990 Pieces 537 Availability Retired Buy this set at Bricklink	Retail $37.99 Value $467.24 Growth +1129.9% Annual growth 4.5% I own this set I want this set

	395-2 Build-N-Store Chest Theme Basic Year 1990 Pieces 535 Availability Retired Buy this set at Bricklink	Retail $39.99 I own this set I want this set

	1637 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 491 / 2 Availability Retired Buy this set at eBay	Retail $22.00 Value $75.65 Growth +243.9% Annual growth 3.5% I own this set I want this set

	1638 Basic Set Theme Basic Year 1990 Pieces 450 Availability Retired Buy this set at eBay	Retail $19.99 Value $111.60 Growth +458.3% Annual growth 4.9% I own this set I want this set

	385-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 438 / 2 Availability Retired Buy this set at Bricklink	Retail $39.99 Value $87.25 Growth +118.2% Annual growth 2.2% I own this set I want this set

	545 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 408 / 2 Availability Retired Buy this set at eBay	Retail $19.99 Value $92.01 Growth +360.3% Annual growth 4.1% I own this set I want this set

	715 Basic Building Set Theme Basic Year 1990 Pieces 395 Availability Retired Buy this set at eBay Bricklink	Retail $17.99 Value $103.63 Growth +476.0% Annual growth 5.0% I own this set I want this set

	565-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 364 / 2 Availability Retired Buy this set at Bricklink	Retail $25.99 Value $115.71 Growth +345.2% Annual growth 4.9% I own this set I want this set

	535 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 345 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $14.99 Value $45.48 Growth +203.4% Annual growth 3.1% I own this set I want this set

	365-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 337 / 1 Availability Retired Buy this set at eBay	Retail $24.99 Value $96.63 Growth +286.7% Annual growth 2.5% I own this set I want this set

	725 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 319 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $37.99 Value $214.80 Growth +465.4% Annual growth 5.9% I own this set I want this set

	1636 Handy Bucket of Bricks Theme Basic Year 1990 Pieces / Minifigs 184 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $14.99 Value $51.83 Growth +245.8% Annual growth 3.5% I own this set I want this set

	515 Basic Building Set Theme Basic Year 1990 Pieces 111 Availability Retired Buy this set at eBay	Retail $9.49 Value $17.53 Growth +84.7% Annual growth 3.2% I own this set I want this set

	325 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 104 / 1 Availability Retired Buy this set at eBay	Retail $17.99 Value $71.35 Growth +296.6% Annual growth 3.7% I own this set I want this set

	335 Basic Building Set Theme Basic Year 1990 Pieces 99 Availability Retired Buy this set at eBay Bricklink	Retail $19.99 Value $103.27 Growth +416.6% Annual growth 4.7% I own this set I want this set

	315 Basic Building Set Theme Basic Year 1990 Pieces 62 Availability Retired Buy this set at eBay	Retail $17.99 Value $29.97 Growth +66.6% Annual growth 3.1% I own this set I want this set

	1679 Basic Building Set Theme Basic Year 1990 Pieces 43 Availability Retired Buy this set at eBay Bricklink	Retail $24.99 I own this set I want this set

	1676 Basic Building Set Theme Basic Year 1990 Pieces 22 Availability Retired Buy this set at eBay	Retail $24.99 Value $25.00 Growth +0.0% Annual growth 1.3% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

525-1

Name

Basic Building Set

Theme

Basic

Year

1990

Availability

Retired

Pieces

181 (PPP $0.07)

Minifigs

1 (Value $4.50)

(Exclusive)

Set Pricing

Retail price

$12.99

New/Sealed

Value

$159.99

Growth

+1131.64%

Annual growth

+6.46%

Used

Value

$12.00

Range

$11.76 - $14.40

Quick Buy

eBay

Buy

Lowest price

$159.99

Highest price

$300.00

Bricklink

Buy

Lowest price

$135.00

Highest price

$163.80

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$159.99

1 year forecast

$169.49+5.94%

5 year forecast

$199.39+24.63%

$190

$206

525 Basic Building Set is projected to be valued between $190 - $206 within five years.

Insights

Retired in the early 1990s, Basic Building Set 525 draws nostalgia from its boxed storage-case format and sealed scarcity, and while that has supported stronger vintage demand, limited unique elements and a common minifigure keep interest focused among vintage collectors rather than the broader market.

Set Facts

It was packaged in a blue plastic box with a yellow handle.

Basic Building Set Reviews

32 ratings

4.7

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.91% (this set +6.46%)

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

Community Stats

Basic Building Set currently ranks #21 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

#21Basic Building Set

#22Blue Baseplate

#23Snowman

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)

$159.99

Value (in a year)

$169.49

Value (in 2 years)

$177.99

Accuracy

0.960500 Very high

Statistical Model

Value (today)

$175.96

Value (in a year)

$187.13

Value (in two years)

$198.34

Accuracy

0.416954 Low

Used

Machine Learning/AI Model

Value (today)

$12.00

Value (low range)

$11.76

Value (high range)

$14.40

Accuracy

0.905500 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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