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Sets
Basic
Basic Building Set

320 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 320-1
Availability: InStock
Rating: 4.60 (45 reviews)

Images 1

LEGO 320 Basic Building Set is a vintage Basic set from 1985 valued at $43 for new and sealed sets, up 442% from an original retail price of $7.97. Annual appreciation has averaged 3.75% since release. On the used market, values range from $11 to $14 based on condition.

Set Value (New/Sealed)

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

EGO 320 Basic Building Set is a Basic set released in 1973, containing 183 pieces. The set includes a selection of standard LEGO bricks, doors, windows, and wheels for building simple houses, vehicles, and figures. It was packaged in a classic box design typical of early 1970s Basic sets and aimed to encourage creative, open-ended construction. The set represents one of the foundational entries in LEGO’s early building system for young builders.

A new and sealed Basic Building Set is currently valued at around $43, with annual growth of approximately 3%, which is lower than other Basic sets. The average used price is $12 for those in good overall condition. New and sealed listings currently range from $44 to $74. Based on current trends, this set could be valued near $45 within the next year.

All regions

All regions 10
United States 9
Europe 1

For Sale (New/Sealed)

	(US) System: Basic Building Set (515) Vintage Set Brand New	BrickEconomy Choice $40.00
	(ES) New in sealed box. With dust. Ask for pictures if it's needed	$43.39 +0.5%
	(US) NOS Vintage LEGO 320 Basic Building Set 1985- Never Opened	$45.00 +4.2%
	(US) Vintage 1987 Lego Basic Building Set #303 NEW IN BOX	$49.95 +15.7%
	(US) System: Basic Building Set (515) Vintage Set Brand New In Excellent Box	$50.00 +15.8%
	(US) Universal Building Set Basic Set 335 Basic Building Set 100% cmpl.+box 1990	$59.99 +39.0%
	(US) VTG LEGO BASIC BUILDING SET #527 (191 pcs) 1987 Complete Set NOS	$72.95 +69.0%
	(US) Basic: Basic Building Set, 3+ (320)	$75.00 +73.7%
	(US) #320 Basic Building Set 1985 VINTAGE Complete w/ Sealed BOX NOS	$88.88 +105.9%
	(US) NOS LEGO #320 Basic Building Set 1985 VINTAGE Complete w/ Sealed BOX	$89.99 +108.5%

Minifigs

Basic Building Set contains 1 minifig. The minifig is also included in 23 other sets.

4224c01

Basic Figure Finger Puppet Female

24 sets

Value $2.48

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 $97.67 Growth +389.6% Annual growth 3.3% I own this set I want this set

	550 Basic Building Set Theme Basic Year 1985 Pieces / Minifigs 569 / 2 Availability Retired Buy this set at eBay	Retail $42.00 Value $352.67 Growth +739.7% Annual growth 5.0% 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 $277.27 Growth +362.1% 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 $124.31 Growth +314.4% 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 $387.81 Growth +2494.0% 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 $77.72 Growth +2534.6% 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 $256.31 Growth +1608.7% Annual growth 4.2% 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	Retail $16.49 Value $210.05 Growth +1173.8% 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 $44.47 Growth +243.4% Annual growth 3.1% 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 $120.43 Growth +1110.4% 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	Retail $3.50 Value $57.82 Growth +1552.0% Annual growth 6.2% 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 $20.18 Growth +307.7% 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 $35.33 Growth +606.6% Annual growth 3.0% 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 $44.53 Growth +1027.3% Annual growth 5.8% I own this set I want this set

	1548-2 Helicopter Theme Basic Year 1985 Pieces 36 Availability Retired Buy this set at Bricklink	promotional Value $113.12 Annual growth 3.1% 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 Bricklink	Retail $4.00 Value $8.83 Growth +120.8% Annual growth 2.0% 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 $14.83 Growth +641.5% 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 $25.00 Growth +733.3% Annual growth 5.3% 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 $47.95 Growth +3118.1% Annual growth 6.6% 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 $102.66 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 Bricklink	Retail $0.40 Value $5.08 Growth +1170.0% 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

320-1

Name

Basic Building Set

Theme

Basic

Year

1985

Availability

Retired

Pieces

77 (PPP $0.10)

Minifigs

1 (Value $2.48)

Set Pricing

Retail price

$7.97

New/Sealed

Value

$43.17

Growth

+441.66%

Annual growth

+3.75% Increasing

Future growth

+9.39% (2 year outlook)

90-day change

1.05%

Used

Value

$11.69

Range

$11.21 - $14.03

Quick Buy

eBay

Buy

Lowest price

$40.00

Highest price

$89.99

Bricklink

Buy

Lowest price

$26.25 (NL)

Highest price

$43.39

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$43.17

1 year forecast

$44.79+3.75%

5 year forecast

$51.19+18.58%

$50

$53

320 Basic Building Set is projected to be valued between $50 - $53 within five years.

Insights

Released long ago and now retired, Basic Building Set (320) draws nostalgia-driven interest for sealed copies and condition-sensitive packaging, and scarcity of complete sealed examples supports collector demand, while its generic parts and overlap across the Basic theme limit long-term investment distinctiveness.

Set Facts

The set includes a variety of standard bricks in primary colors, such as black, blue, red, yellow, and white, in sizes ranging from 2x2 to 2x10.
It contains unique decorated yellow bricks featuring eyes and smile/frown face patterns, as well as elements like a yellow door and window with red accents.
Special parts include a vehicle base with red wheels, a blue 4x12 plate, a green 8x8 brick, a green plant/tree fruit, a white lattice fence, a trans-clear windscreen, and a basic finger puppet figure.

Basic Building Set Reviews

45 ratings

4.6

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.88% (this set +3.75%)

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

Community Stats

Basic Building Set currently ranks #189 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

#189Basic Building Set

#190Weetabix Windmill

#191Extra Bricks in Red

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)

$43.17

Value (in a year)

$44.79

Value (in 2 years)

$46.41

Accuracy

0.960400 Very high

Statistical Model

Value (today)

$53.89

Value (in a year)

$55.77

Value (in two years)

$57.66

Accuracy

0.248657 Very low

Used

Machine Learning/AI Model

Value (today)

$11.69

Value (low range)

$11.21

Value (high range)

$14.03

Accuracy

0.905400 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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