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Sets
Freestyle
Freestyle Building Set

4131 LEGO Freestyle Building Set

Name: LEGO Freestyle Building Set
Brand: LEGO
SKU: 4131-1
Availability: InStock
Rating: 4.5 (24 reviews)

Images 1

LEGO 4131 Freestyle Building Set is a vintage Freestyle set from 1995 valued at $18 for new and sealed sets, up 361% from an original retail price of $3.99. Annual appreciation has averaged 6.18% since release. Used copies are valued between $3 and $5 depending on condition. Secondary market prices for new and sealed sets typically fall between $15 and $21.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Freestyle Building Set since September 2017. Very high accuracy

LEGO 4131 Freestyle Building Set is a Freestyle set released in 1995, containing 71 pieces. It features a selection of basic bricks in primary colors alongside Freestyle-specific elements such as curved slopes with printed faces, a yellow 2 x 2 brick with eye prints, and decorative flower and leaf pieces. The set also includes large red Freestyle door and window frames with white inserts, a white lattice fence, and a sizable green 4 x 12 brick for simple structures.

A new and sealed Freestyle Building Set is currently valued at around $18, with annual growth of 6.2% that is expected to level off to around 1.5% in the coming year. The average used price is $3 for those in good overall condition. Based on current trends, this set could be valued near $19 within the next year. New and sealed listings currently range from $16 to $25.

All regions

All regions 22
United States 21
Canada 1

For Sale (New/Sealed)

	(US) FRIENDS: Heartlake Surf Shop (41315)	BrickEconomy Choice $13.99
	(US) FRIENDS: Heartlake Surf Shop (41315)	$14.00 -23.9%
	(US) Friends Heartlake Surf Shop 41315 Sealed Box; Box Tear	$14.99 -18.5%
	(US) FRIENDS: Heartlake Surf Shop (41315) - New in Sealed Box	$14.99 -18.5%
	(US) corner crushing	$14.99 -18.5%
	(US) Friends HEARTLAKE SURF SHOP 186 Pce Set 41315 NEW SEALED 2017 Fast Shippi	$16.00 -13.0%
	(US) Friends 41315 Heartlake Surf Shop - Read	$18.99 +3.2%
	(US) Vintage 1995 Lego System 4131 FreeStyle 68 Pieces Set NEW UNOPENED	$18.99 +3.2%
	(US) Vintage 1995 Lego System 4131 FreeStyle 68 Pieces Set NEW UNOPENED	$18.99 +3.2%
	(US) Friends Heartlake Surf Shop (41315) New Factory Sealed	$19.42 +5.5%
	(US) NIB LEGO Friends Heartlake Mia Surf Shop 41315 Complete Set Factory Sealed	$19.99 +8.6%
	(CA) Vintage Lego System FreeStyle 4131 NOS Unopened Retired 68 Pieces 1995 Denmark	$21.36 +16.1%
	(US) LEGO Friends 41315-1 Heartlake Surf Shop	$21.99 +19.5%
	(US) FreeStyle: #4131 Building Set No. 2 (1995) - SEALED	$21.99 +19.5%
Show 7 more listings
	(US) FRIENDS: Heartlake Surf Shop (41315)	$24.71 +34.3%
	(US) Friends Heartlake Surf Shop 41315 New in Box Sealed Age 6-12 Mia Building	$24.99 +35.8%
	(US) 41315 - Friends Heartlake Surf Shop Factory Sealed	$25.00 +35.9%
	(US) Friends: Heartlake Surf Shop (41315) Brand New & Factory Sealed	$25.99 +41.3%
	(US) NEW LEGO FRIENDS: Heartlake Surf Shop (41315) Sealed in Box - Retired	$26.95 +46.5%
	(US) NEW LEGO Friends Heartlake Mia Surf Shop 41315 Complete Set Factory Sealed	$29.00 +57.6%
	(US) Friends Heartlake Surf Shop (41315) New Factory Sealed	$29.50 +60.3%
	(US) Friends Heartlake Surf Shop 41315 (186 Pcs) Brand new & Sealed	$29.99 +63.0%

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 4131 Freestyle Building Set.

More sets in Freestyle


	4153 Freestyle Playcase Large Theme Freestyle Year 1995 Pieces / Minifigs 687 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $37.99 Value $121.13 Growth +218.8% Annual growth 5.1% I own this set I want this set

	4162 Freestyle Multibox Theme Freestyle Year 1995 Pieces 592 Availability Retired Buy this set at Bricklink	Retail $24.99 Value $150.00 Growth +500.2% Annual growth 6.6% I own this set I want this set

	4146 Freestyle Bucket Theme Freestyle Year 1995 Pieces 410 Availability Retired Buy this set at Bricklink	Retail $32.99 Value $48.34 Growth +46.5% Annual growth 1.2% I own this set I want this set

	4152 Freestyle Bucket Theme Freestyle Year 1995 Pieces / Minifigs 400 / 2 Availability Retired Buy this set at Bricklink	Retail $19.99 Value $35.59 Growth +78.0% Annual growth 1.9% I own this set I want this set

	4163 Electric Freestyle Set Theme Freestyle Year 1995 Pieces 349 Availability Retired Buy this set at Bricklink	Retail $44.99 Value $69.94 Growth +55.5% Annual growth 1.5% I own this set I want this set

	4161 Girl's Freestyle Suitcase Theme Freestyle Year 1995 Pieces / Minifigs 283 / 2 Availability Retired Buy this set at eBay	Retail $19.99 Value $95.59 Growth +378.2% Annual growth 3.7% I own this set I want this set

	4151 Girl's Freestyle Set Theme Freestyle Year 1995 Pieces 272 Availability Retired Buy this set at eBay	Retail $12.99 Value $70.63 Growth +443.7% Annual growth 4.4% I own this set I want this set

	4134 Freestyle Bucket Theme Freestyle Year 1995 Pieces 252 Availability Retired Buy this set at eBay	Retail $19.99 Value $20.55 Growth +2.8% Annual growth 5.1% I own this set I want this set

	4145 Freestyle Playcase Medium Theme Freestyle Year 1995 Pieces 249 Availability Retired Buy this set at eBay	Retail $19.99 Value $108.31 Growth +441.8% Annual growth 4.6% I own this set I want this set

	1719-2 Freestyle Bricks and Plates Theme Freestyle Year 1995 Pieces 199 Availability Retired Buy this set at eBay	Retail $19.99 Value $31.11 Growth +55.6% Annual growth 1.4% I own this set I want this set

	4143 Freestyle Building Set Theme Freestyle Year 1995 Pieces 196 Availability Retired Buy this set at Bricklink	Retail $8.99 Value $35.37 Growth +293.4% Annual growth 4.5% I own this set I want this set

	4144 Freestyle Brick Vac Bus Theme Freestyle Year 1995 Pieces 141 Availability Retired Buy this set at eBay Bricklink	Retail $21.99 Value $183.88 Growth +736.2% Annual growth 7.0% I own this set I want this set

	4133 Freestyle Bucket Theme Freestyle Year 1995 Pieces 135 Availability Retired Buy this set at eBay	Retail $16.50 Value $108.44 Growth +557.2% Annual growth 6.3% I own this set I want this set

	4132 Freestyle Building Set Theme Freestyle Year 1995 Pieces 122 Availability Retired Buy this set at eBay Bricklink	Retail $6.99 Value $31.49 Growth +350.5% Annual growth 2.6% I own this set I want this set

	1766 Small Freestyle Bucket Theme Freestyle Year 1995 Pieces 109 Availability Retired Buy this set at eBay	Retail $9.99 Value $10.40 Growth +4.1% I own this set I want this set

	4142 Freestyle Building Set Theme Freestyle Year 1995 Pieces 98 Availability Retired Buy this set at eBay	Retail $7.99 Value $29.32 Growth +267.0% Annual growth 3.4% I own this set I want this set

	4150 Building Set Theme Freestyle Year 1995 Pieces / Minifigs 88 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $9.49 Value $17.99 Growth +89.6% Annual growth 2.9% I own this set I want this set

	4130 Daft 'n' Dotty Theme Freestyle Year 1995 Pieces 37 Availability Retired Buy this set at Amazon eBay	Retail $1.99 Value $7.58 Growth +280.9% Annual growth 4.4% I own this set I want this set

	1870 Trial Size Bag Theme Freestyle Year 1995 Pieces 36 Availability Retired Buy this set at eBay	promotional Value $9.99 Annual growth 6.0% I own this set I want this set

	1860 Trial Size Bag Theme Freestyle Year 1995 Pieces / Minifigs 30 / 1 Availability Retired Buy this set at eBay	promotional Value $17.99 Annual growth 4.0% I own this set I want this set

	1850 Trial Size Bag Theme Freestyle Year 1995 Pieces 27 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $1.99 Value $9.34 Growth +369.3% Annual growth 5.1% I own this set I want this set

	1840 Trial Size Bag Theme Freestyle Year 1995 Pieces 23 Availability Retired Buy this set at eBay	promotional Value $9.24 Annual growth 2.4% I own this set I want this set

	1839 Freestyle Set Theme Freestyle Year 1995 Pieces 19 Availability Retired Buy this set at eBay	promotional Value $5.24 Annual growth 2.5% I own this set I want this set

	1838 Freestyle Set Theme Freestyle Year 1995 Pieces 16 Availability Retired Buy this set at eBay Bricklink	promotional Value $2.41 Annual growth 5.3% I own this set I want this set

	1837 Freestyle Set Theme Freestyle Year 1995 Pieces 11 Availability Retired Buy this set at eBay Bricklink	promotional Value $6.24 Annual growth 2.8% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

4131-1

Name

Freestyle Building Set

Theme

Freestyle

Year

1995

Availability

Retired

Pieces

71 (PPP $0.06)

Set Pricing

Retail price

$3.99

New/Sealed

Value

$18.40

Growth

+361.15%

Annual growth

+6.18% Decreasing

Rolling growth

+10.04% (Previous 12 months)

Future growth

+1.55% (2-3 year outlook)

90-day change

2.81%

Used

Value

$3.36

Range

$3.29 - $4.83

Quick Buy

eBay

Buy

Lowest price

$13.99

Highest price

$29.99

Bricklink

Buy

Lowest price

$12.00 (FR)

Highest price

$17.59

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$18.40

1 year forecast

$18.56+0.85%

5 year forecast

$19.75+7.34%

$19

$20

4131 Freestyle Building Set is projected to be valued between $19 - $20 within five years.

Insights

Released in the mid-1990s and now retired, Freestyle Building Set (4131) has seen post-retirement appreciation driven by dwindling sealed supply, and its recovery is supported by 1990s nostalgia while limited unique elements and absence of minifigures keep demand narrow and condition-sensitive.

Set Facts

Designed for open-ended building, it reflects the mid-1990s Freestyle line’s focus on mix-and-match parts and characterful prints.

Freestyle Building Set Reviews

24 ratings

4.2

Collectors

Investors

Theme Analysis

Freestyle

Sets

Years

1995 - 1999

Annual growth

+3.85% (this set +6.18%)

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

Community Stats

Freestyle Building Set currently ranks #3 out of the top most owned sets in Freestyle.

#1XL Value Bucket

#2Halloween Bucket

#3Freestyle Building Set

#4Electric Freestyle Set

#5Freestyle Set

#6Trial Size Bag

#7Contraption Set

#8Limited Edition Silver Freestyle Tub

About Freestyle

Freestyle was a LEGO theme that was released in 1995 and ran for four years. It was the successor to the Basic theme and focused on creative building with simple, basic LEGO bricks. Many Freestyle sets were bucket sets. The theme was later succeeded by the Bricks and More theme.

Set Pricing Models

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

New/Sealed

Machine Learning/AI Model

Value (today)

$18.40

Value (in a year)

$19.45

Value (in 2 years)

$20.38

Accuracy

0.960900 Very high

Statistical Model

Value (today)

$16.05

Value (in a year)

(Possible plateau)

Value (in two years)

(Possible plateau)

Accuracy

0.284799 Very low

Used

Machine Learning/AI Model

Value (today)

$3.36

Value (low range)

$3.29

Value (high range)

$4.83

Accuracy

0.905900 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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