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Sets
Basic
Supplementaries
Black Bricks Parts Pack

831 LEGO Black Bricks Parts Pack

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

Images 1

LEGO 831 Black Bricks Parts Pack is a vintage Basic set from 1980 valued at $18 for new and sealed sets, up 280% from an original retail price of $4.75. Annual appreciation has averaged 2.12% since release. Used copies are valued between $15 and $18 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Black Bricks Parts Pack since May 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.

A new and sealed Black Bricks Parts Pack is currently valued at around $18, with annual growth of approximately 1%, which is lower than other Supplementaries sets. The average used price is $15 for those in good overall condition. Based on current trends, this set could be valued near $18 within the next year.

All regions

All regions 1

For Sale (New/Sealed)

(JP) Condition is not so bad,but has little damage. If you need photo, please contact me.

$18.83

+4.4%

All regions

All regions 2
United States 1
European Union 1

For Sale (Used)

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

Sets in Basic / Supplementaries


	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 $48.01 Growth +910.7% 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 $46.52 Growth +879.4% Annual growth 5.3% 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 $57.26 Growth +1105.5% 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 Bricklink	Retail $4.75 Value $20.23 Growth +325.9% 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 $22.90 Growth +382.1% 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 $29.57 Growth +522.5% 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 $31.12 Growth +555.2% 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	Retail $4.75 Value $18.84 Growth +296.6% Annual growth 3.5% 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 Bricklink	Retail $4.75 Value $27.26 Growth +473.9% Annual growth 5.7% 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	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 $41.28 Growth +2258.9% Annual growth 9.8% 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 $30.10 Growth +1620.0% 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 eBay	Retail $3.75 Value $31.03 Growth +727.5% Annual growth 4.3% 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 $16.61 Growth +342.9% Annual growth 2.4% I own this set I want this set

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

$18.04

Growth

+279.79%

Annual growth

+2.12% Decreasing

Rolling growth

--3.03% (Previous 12 months)

90-day change

-1.14%

Used

Value

$15.41

Range

$15.10 - $18.49

Quick Buy

eBay

Buy

Price (new)

$17.50

Price (used)

$15.41

Bricklink

Buy

Lowest price

$18.83 (JP)

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$18.04

1 year forecast

$18.42+2.12%

5 year forecast

$19.94+10.51%

$19

$21

831 Black Bricks Parts Pack is projected to be valued between $19 - $21 within five years.

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

+3.07% (this set +2.12%)

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

Community Stats

Black Bricks Parts Pack currently ranks #71 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

#71Black Bricks Parts Pack

#72Blue Bricks Parts Pack

#73Red Bricks

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/factory sealed value of $298.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$18.04

Value (in a year)

$18.42

Value (in 2 years)

$18.81

Accuracy

0.920200 High

Statistical Model

Value (today)

$16.85

Value (in a year)

(Possible plateau)

Value (in two years)

(Possible plateau)

Accuracy

0.804978 High

Used

Machine Learning/AI Model

Value (today)

$15.41

Value (low range)

$15.10

Value (high range)

$18.49

Accuracy

0.865200 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.

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