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504 LEGO Basic Building Set
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504 LEGO Basic Building Set
  • Basic Building Set thumbnail

LEGO 504 Basic Building Set is a vintage Basic set from 1985 valued at $49 for new and sealed sets, up 1149% from an original retail price of $3.95. Annual appreciation has averaged 6.01% since release. On the used market, values range from $25 to $46 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since November 2017. High accuracy
LEGO 504-1 Basic Building Set is a Basic theme set released in 1985, containing 41 pieces. It provides a small assortment of standard bricks and plates intended for free-building and simple models. It includes various bricks (1×1 through 2×8), plates (2×3, 2×4), and two modified 2×2 bricks with attached wheels/tire assemblies. In line with other mid-1980s Basic assortments, it emphasizes generic elements over specialized parts. The set functioned as a compact starter box for expanding a parts collection.

A new and sealed Basic Building Set is currently valued at around $49, with annual growth of approximately 6%, which is higher than other Basic sets. The average used price is $41 for those in good overall condition. New and sealed listings currently range from $50 to $73. Based on current trends, this set could be valued near $52 within the next year.
All regions

For Sale (New/Sealed)

 (US) Basic: Basic Building Set (520) New Box Has Wear and Tear Vintage
BrickEconomy Choice
$49.00
(US) Vintage LEGO Basic Building Set (533) Sealed NOS/New $49.99
+1.3%
(US) System: Basic Building Set (515) Vintage Set Brand New In Excellent Box $50.00
+1.4%
(US) CLASSIC 11717 Bricks Bricks Plates Wheels New Factory Sealed 1504 Pieces $60.00
+21.6%
(US) VTG LEGO BASIC BUILDING SET #527 (191 pcs) 1987 Complete Set NOS $72.95
+47.9%

More sets in Basic

540 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 626 / 2
Availability Retired
540 LEGO Basic Building Set
Retail $19.95
Value $97.51
Growth  +388.8%
Annual growth 3.3%

550 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 569 / 2
Availability Retired
550 LEGO Basic Building Set
Retail $42.00
Value $427.51
Growth  +917.9%
Annual growth 5.3%

740 Basic Building Set

Theme Basic
Year 1985
Pieces 516
Availability Retired
740 LEGO Basic Building Set
Retail $60.00
Value $273.33
Growth  +355.6%
Annual growth 3.8%

730-2 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 429 / 2
Availability Retired
730-2 LEGO Basic Building Set
Retail $30.00
Value $124.13
Growth  +313.8%
Annual growth 3.5%

720 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 334 / 1
Availability Retired
720 LEGO Basic Building Set
Retail $25.00
Value $250.00
Growth  +900.0%
Annual growth 5.4%

350-2 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 311 / 4
Availability Retired
350-2 LEGO Basic Building Set
Retail $14.95
Value $390.68
Growth  +2513.2%
Annual growth 8.7%

530 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 269 / 2
Availability Retired
530 LEGO Basic Building Set
Retail $14.95
Value $103.74
Growth  +593.9%
Annual growth 3.6%

340 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 214 / 2
Availability Retired
340 LEGO Basic Building Set
Retail $2.95
Value $77.72
Growth  +2534.6%
Annual growth 8.3%

1962 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 211 / 1
Availability Retired
1962 LEGO Basic Building Set
Retail $15.00
Value $256.31
Growth  +1608.7%
Annual growth 4.2%

1520 Basic Building Set with Storage Case

Theme Basic
Year 1985
Pieces / Minifigs 210 / 1
Availability Retired
1520 LEGO Basic Building Set with Storage Case
Retail $16.49
Value $209.52
Growth  +1170.6%
Annual growth 6.4%

520 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 165 / 1
Availability Retired
520 LEGO Basic Building Set
Retail $12.95
Value $44.47
Growth  +243.4%
Annual growth 3.1%

330 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 156 / 2
Availability Retired
330 LEGO Basic Building Set
Retail $9.95
Value $120.13
Growth  +1107.3%
Annual growth 6.3%

510 Basic Building Set

Theme Basic
Year 1985
Pieces 106
Availability Retired
510 LEGO Basic Building Set
Retail $3.50
Value $57.82
Growth  +1552.0%
Annual growth 6.2%

320 Basic Building Set

Theme Basic
Year 1985
Pieces / Minifigs 77 / 1
Availability Retired
320 LEGO Basic Building Set
Retail $7.97
Value $43.17
Growth  +441.7%
Annual growth 3.8%

508 Basic Building Set

Theme Basic
Year 1985
Pieces 66
Availability Retired
508 LEGO Basic Building Set
Retail $4.95
Value $20.15
Growth  +307.1%
Annual growth 2.3%

310-4 Basic Building Set

Theme Basic
Year 1985
Pieces 46
Availability Retired
310-4 LEGO Basic Building Set
Retail $5.00
Value $35.52
Growth  +610.4%
Annual growth 2.9%

1548-2 Helicopter

Theme Basic
Year 1985
Pieces 36
Availability Retired
1548-2 LEGO Helicopter
promotional
Value $158.27
Annual growth 5.0%

1562-2 Basic Building Set

Theme Basic
Year 1985
Pieces 32
Availability Retired
1562-2 LEGO Basic Building Set
Retail $4.00
Value $8.83
Growth  +120.8%
Annual growth 2.0%

1965 Building Set Trial Size Offer

Theme Basic
Year 1985
Pieces / Minifigs 32 / 1
Availability Retired
1965 LEGO Building Set Trial Size Offer
Retail $1.50
Value $125.00
Growth  +8233.3%
Annual growth 12.2%

304 Basic Building Set

Theme Basic
Year 1985
Pieces 31
Availability Retired
304 LEGO Basic Building Set
Retail $2.00
Value $17.83
Growth  +791.5%
Annual growth 3.7%

308-2 Basic Building Set

Theme Basic
Year 1985
Pieces 30
Availability Retired
308-2 LEGO Basic Building Set
Retail $3.00
Value $29.53
Growth  +884.3%
Annual growth 5.7%

1964 Basic Building Set

Theme Basic
Year 1985
Pieces 27
Availability Retired
1964 LEGO Basic Building Set
Retail $1.49
Value $47.95
Growth  +3118.1%
Annual growth 6.6%

1546 Aircraft

Theme Basic
Year 1985
Pieces / Minifigs 26 / 1
Availability Retired
1546 LEGO Aircraft
promotional
Value $102.66
Annual growth 10.3%

1551 Duck

Theme Basic
Year 1985
Pieces 6
Availability Retired
1551 LEGO Duck
Retail $0.40
Value $5.08
Growth  +1170.0%
Annual growth 8.4%

293-2 Basic Building Set

Theme Basic
Year 1985
Availability Retired
293-2 LEGO Basic Building Set
Retail $7.00

My Collection

Basic Building Set Reviews

49 ratings
4.6
Collectors
Investors
Is this LEGO set a good investment?
“As an investment, Basic Building Set has performed fairly well over the years in the Basic theme, with total post-retirement growth around 1149%. It has also slightly outperformed its peers, averaging about 6.01% annually.”
Review brought to you by BrickEconomy Bot

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.
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