LEGO 831 Black Bricks Parts Pack

Name: LEGO Black Bricks Parts Pack
Brand: LEGO
SKU: 831-1
Availability: InStock
Rating: 4.5 (22 reviews)

LEGO 831 Black Bricks Parts Pack is a vintage Basic set from 1980 valued at $19 for new and sealed sets, up 295% from an original retail price of $4.75. Annual appreciation has averaged 2.25% since release. Used copies are valued between $15 and $18 depending on condition.

Black Bricks Parts Pack Value (New/Sealed)

This chart represents the current new/sealed value of the set Black Bricks Parts Pack since February 2020. High accuracy

LEGO 831-1 Black Bricks Parts Pack is a Basic Supplementaries set released in 1980, containing 46 pieces. It includes an assortment of standard System bricks in black intended for expanding builds or replenishing parts. The set was part of the Supplementaries line of basic brick packs sold alongside core Basic sets during that period.

At around $19 for a sealed copy, Black Bricks Parts Pack has averaged 2.3% a year since retirement. Our forecast sees it reaching about $23 within five years. The average used price is $15 for those in good overall condition.

Collector and Investor Standing

Black bricks from 1980, a parts pack to extend Basic builds.

48/100

Collector

A small following

Black bricks from 1980

41/100

Investor

Weaker than most

Rare transactions keep liquidity nearly non-existent today

For Sale (New/Sealed)

(JP) Black Bricks Parts Pack from BrickLink seller HAGE

$27.50

+46.7%

For Sale (Used)

	(US) Used - eBay listing for 831 Black Bricks Parts Pack	$15.41
	(NL) Used, Good condition complete with box	$15.67

Compared with other Supplementaries sets

#46 of 75

By growth since retail, +295%

+3%+9,287%

In the bottom half of the group.

$0.41 a piece

New and sealed value per piece

This set

$0.41

Typical

$0.50

About 20% below the group's typical value per piece.

Top sets by growth		Year	Since retail
1	940 Flags, Signs and Trees	1973	+9,287%
2	936 Wheels and Tyres	1973	+4,497%
3	933 Doors and Windows	1973	+4,430%
46	831 Black Bricks Parts Pack	1980	+295%

Black Bricks Parts Pack Questions

What is LEGO 831 Black Bricks Parts Pack worth?

Sealed in its box, Black Bricks Parts Pack is currently valued at $19. Its value has climbed 4% over the last 90 days. Used copies are worth about $15.

Can you still buy LEGO 831 Black Bricks Parts Pack from LEGO?

No. LEGO no longer makes Black Bricks Parts Pack. Sealed copies are now found only on the secondary market, so the price follows what collectors will pay.

Is LEGO 831 Black Bricks Parts Pack worth more than it cost?

Yes, by a wide margin. Black Bricks Parts Pack has gained 295% on its original retail price of $4.75, about 2.3% a year. That is behind the Supplementaries average of 3.1% a year, so other sets in its group have grown faster.

Will LEGO 831 Black Bricks Parts Pack go up in value?

Our forecast says yes. BrickEconomy's forecast puts Black Bricks Parts Pack near $19 in twelve months, about 3% more than today. Like any forecast, this is an estimate.

How big is LEGO 831 Black Bricks Parts Pack?

Black Bricks Parts Pack has 46 pieces, or $0.10 per piece at retail.

Top lists

Top LEGO Sets by Growth 1980s Most Valuable LEGO Sets

My Collection

I own this set

I want this set

Set Details

Set number

831-1

Name

Black Bricks Parts Pack

Theme

Basic

Subtheme

Supplementaries

Year

1980

Availability

Retired

Pieces

46 (PPP $0.10)

Set Pricing

Retail price

$4.75

New/Sealed

Value

$18.75

Growth

+294.74%

Annual growth

+2.25% Decreasing

Rolling growth

+4.86% (Previous 12 months)

90-day change

3.94%

1-year growth

+3.00% (12 month outlook)

Future growth

+4.13% (2-5 year outlook)

Used

Value

$15.41

Range

$15.10 - $18.49

Quick Buy

eBay

Buy

Typical price

$18.75

BrickLink

Buy

Lowest price

$27.50 (JP)

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$18.75

1 year forecast

$19.31+3.00%

5 year forecast

$22.71+21.11%

Weaker outlook

Stronger outlook

The forecast puts 831 Black Bricks Parts Pack at about $22.71 in five years. That is a softer outlook than most sets.

Insights

Retired Basic Supplementaries release Black Bricks Parts Pack (831) has limited sealed availability that created scarcity, and its post-retirement appreciation reflects that, while the lack of unique elements and later black-brick assortments keep demand niche and limit upside.

Set Facts

The set includes a variety of black bricks in sizes ranging from 1x1 up to 2x10, covering both basic and larger building elements. Multiple 2x2, 2x3, and 2x4 bricks are featured without inside or cross supports. The set also contains 1x6 and 1x8 bricks in black.

Black Bricks Parts Pack Reviews

22 ratings

4.5

Collectors

Investors

Subtheme Analysis

Basic / Supplementaries

Sets

Years

1973 - 1996

Annual growth

+3.06% (this set +2.25%)

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

Community Stats

Black Bricks Parts Pack currently ranks #72 out of the top most owned sets in Basic Supplementaries.

#1Building Plate, Green

#2X-Large Baseplate Grey

#3Brick Separator, Green

#4Lighting Bricks

#5Wind-Up Motor

#72Black Bricks Parts Pack

#73Blue Bricks Parts Pack

#74Hinges and Turntables

About Basic Supplementaries

LEGO Supplementaries were sets released during the early days of the LEGO system. These sets were designed to supplement and expand upon the building possibilities of existing LEGO sets. Instead of being complete stand-alone models or kits, Supplementaries provided additional bricks, special parts, wheels, windows, doors, gears, or even motors. These sets were especially useful during an era when LEGO's product line was simpler and less specialized than it is today.

Supplementaries consists of 75 sets that ran from 1973 to 1996. As of today, 637 Play Table is the most valuable Supplementaries set with an estimated new/sealed value of $235.

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	838 Red Roof Bricks Parts Pack, 45° Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 58 Availability Retired Buy this set at BrickLink	Retail $4.75 Value $47.51 Growth +900.2% Annual growth 5.6% I own this set I want this set

	830 Red Bricks Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 46 Availability Retired Buy this set at eBay	Retail $4.75 Value $42.92 Growth +803.6% Annual growth 5.1% I own this set I want this set

	832 Blue Bricks Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 46 Availability Retired Buy this set at eBay BrickLink	Retail $4.75 Value $57.95 Growth +1120.0% Annual growth 5.6% I own this set I want this set

	833 White Bricks Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 46 Availability Retired Buy this set at eBay	Retail $4.75 Value $20.37 Growth +328.8% Annual growth 3.5% I own this set I want this set

	834 Yellow Bricks Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 46 Availability Retired Buy this set at BrickLink	Retail $4.75 Value $23.06 Growth +385.5% Annual growth 2.1% I own this set I want this set

	839 Red Roof Bricks Parts Pack, 33° Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 42 Availability Retired Buy this set at BrickLink	Retail $4.75 Value $29.83 Growth +528.0% Annual growth 4.0% I own this set I want this set

	836 Doors and Windows Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 37 Availability Retired Buy this set at eBay BrickLink	Retail $4.75 Value $29.99 Growth +531.4% Annual growth 2.5% I own this set I want this set

	820 Red Plates Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 34 Availability Retired Buy this set at eBay BrickLink	Retail $4.75 Value $17.30 Growth +264.2% Annual growth 3.4% I own this set I want this set

	822 Blue Plates Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 34 Availability Retired Buy this set at eBay BrickLink	Retail $4.75 Value $27.48 Growth +478.5% Annual growth 5.5% I own this set I want this set

	837 Wheels and Tyres Parts Pack Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 28 Availability Retired Buy this set at eBay BrickLink	Retail $4.75 Value $14.18 Growth +198.5% Annual growth 2.4% I own this set I want this set

	841 Baseplates, Green and Yellow Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 2 Availability Retired Buy this set at BrickLink	Retail $1.75 Value $48.25 Growth +2657.1% Annual growth 10.1% I own this set I want this set

	842 Baseplates, Red and Blue Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 2 Availability Retired Buy this set at BrickLink	Retail $1.75 Value $30.43 Growth +1638.9% Annual growth 6.4% I own this set I want this set

	840 Baseplate, Green Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 1 Availability Retired Buy this set at BrickLink	Retail $3.75 Value $32.31 Growth +761.6% Annual growth 4.4% I own this set I want this set

	843 Baseplate, Grey Theme / Subtheme Basic / Supplementaries Year 1980 Pieces 1 Availability Retired Buy this set at ebay BrickLink	Retail $3.75 Value $16.73 Growth +346.1% Annual growth 2.4% I own this set I want this set

831 LEGO Black Bricks Parts Pack

Black Bricks Parts Pack Value (New/Sealed)

For Sale (New/Sealed)

For Sale (Used)

Compared with other Supplementaries sets

Sets in Basic / Supplementaries

838 Red Roof Bricks Parts Pack, 45°

830 Red Bricks Parts Pack

832 Blue Bricks Parts Pack

833 White Bricks Parts Pack

834 Yellow Bricks Parts Pack

839 Red Roof Bricks Parts Pack, 33°

836 Doors and Windows Parts Pack

820 Red Plates Parts Pack

822 Blue Plates Parts Pack

837 Wheels and Tyres Parts Pack

841 Baseplates, Green and Yellow

842 Baseplates, Red and Blue

840 Baseplate, Green

843 Baseplate, Grey