Name: LEGO Basic Building Set
Brand: LEGO
SKU: 9-1
Availability: InStock
Rating: 4.70 (6 reviews)

LEGO 9 Basic Building Set is a vintage Basic set from 1978 valued at $97 for new and sealed sets, up 2680% from an original retail price of $3.49. Annual appreciation has averaged 12.28% since release. Used copies are valued between $15 and $20 depending 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 9-1 Basic Building Set is a Basic theme set released in 1978, containing 116 pieces and no minifigures. It offers an assortment of standard bricks and plates intended for open-ended construction and general building practice. As part of the late-1970s Basic range, it focuses on versatile elements rather than specialized parts or character figures.

A new and sealed Basic Building Set is currently valued at around $97, with annual growth of 8.2% that is expected to level off to around 2.4% in the coming year. The average used price is $17 for those in good overall condition. Based on current trends, this set could be valued near $98 within the next year. New and sealed listings currently range from $86 to $139.

For Sale (New/Sealed)

	(ES) New in sealed box (this set was made without polybags).If you want to know shipping c...	$76.48 -21.2%
	(US) Lot Of 4 Vtg Lego Basic Building Set New In Box Nos # 1523 1524 nice rare	BrickEconomy Choice $99.99 +3.1%
	(AU) Vintage LEGO Basic Souvenir Box 1-11 - Sealed in box - Released 1981	$123.32 +27.1%
	(US) 1986 Vintage LEGO Basic Building Block Set #1050 Unopened	$150.00 +54.6%

For Sale (Used)

	(BG) Used - 3x Lego Universal Building Classic Basic Sets (2728,2759,1836) - 100% complete	$12.99 --23.5%
	(US) Used - Block Box Empty 4285 No Legos Vintage 1987/1992 Duplo Red Cool Collectible	$15.95 --6.1%
	(US) Used - Set #10401 Building Bigger Thinking Rainbow Fun	$16.99
	(US) Used - Vintage 1984 Lego Duplo Duck 2335 w/ Box 9 PCS Complete Set + Parent Manual	$19.99
	(US) Used - Building Toy Set 375 (MPN 375) 375 Pieces in Box, Ages 4-9	$22.00

Sets in Basic


	205 People Set Theme Basic Year 1978 Pieces 120 Availability Retired Buy this set at Bricklink	Retail $8.99 Value $98.00 Growth +990.1% Annual growth 2.7% I own this set I want this set

	7 Basic Building Set Theme Basic Year 1978 Pieces 2 Availability Retired Buy this set at eBay	Retail $3.49 Value $35.69 Growth +922.6% Annual growth 9.7% I own this set I want this set

	8 Basic Building Set Theme Basic Year 1978 Pieces 1 Availability Retired Buy this set at eBay	Retail $5.49 Value $24.99 Growth +355.2% Annual growth 3.2% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

9-1

Name

Basic Building Set

Theme

Basic

Year

1978

Availability

Retired

Pieces

116 (PPP $0.03)

Set Pricing

Retail price

$3.49

New/Sealed

Value

$97.02

Growth

+2679.94%

Annual growth

+12.28% Decreasing

2025 growth

--0.65%

Future growth

+2.42% (2-3 year outlook)

90-day change

14.31%

Used

Value

$16.99

Range

$14.69 - $20.39

Quick Buy

eBay

Buy

Lowest price

$99.99

Highest price

$150.00

Bricklink

Buy

Lowest price

$76.48 (ES)

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$97.02

1 year forecast

$98.31+1.33%

5 year forecast

$108.09+11.41%

$103

$111

9 Basic Building Set is projected to be valued between $103 - $111 within five years.

Insights

Released in the late 1970s and long since retired, Basic Building Set 9 is a classic-era Basic box whose scarcity and period packaging drive interest, and sealed, well-preserved examples attract vintage collectors while trading volume and nostalgia-driven demand can make returns more volatile.

Set Facts

The set includes a variety of classic bricks in red, blue, and yellow without inside or cross supports, as well as specialty elements like a white 1x4x5 paned door, a large green pine tree, and black wheels with small offset treaded tires.

Basic Building Set Reviews

6 ratings

4.7

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.89% (this set +12.28%)

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

Community Stats

Basic Building Set currently ranks #132 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

#132Basic Building Set

#133Basic Building Set

#134Toucan

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.

Basic Sets are the basis of any LEGO collection. The contents are so varied that children can build whatever they imagine. And if they need some inspiration they can find it in pictures on the boxes. Unlike Basic Sets the Model Sets are designed to build a particular model from simple instructions. But imagination will create other models from the same bricks.

9 LEGO Basic Building Set