The Most Valuable Lego Sets of All Time

It’s been a while since LEGO established itself as a potentially impressive investment. Over the years, certain LEGO sets have become highly collectable, turning into investments that can yield exceptional returns. That is, of course, if you know which sets to buy. 

In this guide, we’ll walk you through the most valuable rare LEGO sets ever released, why they’re so popular, and how they could be an exciting opportunity for investors.

#1 San Diego Comic-Con 2013 Spider-Man

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We open our list with a true rarity gem - the LEGO San Diego Comic-Con 2013 Spider-Man set, a special three-piece Marvel Super Heroes promotional set featuring one minifigure. 

It was released exclusively at the 2013 San Diego Comic-Con and given to attendees who won the daily raffle. Produced in only 350 sets, it’s one of the rarest LEGO sets ever released - a real-life LEGO holy grail. 

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $17,813

• Average Annual Growth Rate: ~11.4%

Secondary Market Prices:

• New/Sealed (MISB/NISB): $13,473–$18,301

• Used Set: $14,504–$16,455 (depending on condition)

#2 4000012 Piper Airplane

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The 4000012 Piper Airplane was an exclusive set given to attendees of the 2012 LEGO Inside Tour. Only 53 copies were ever made, making it one of the rarest LEGO sets. 

The model is inspired by the first aeroplane the LEGO Group acquired in 1962, making it a significant piece of LEGO history.

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $11,738

• Average Annual Growth Rate: ~35.4%

Used Set:

• Price Range: $2,452–$2,782 (depending on condition)

• Average Price: $2,500 (good overall condition)

#3 Ole Kirk's House

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LEGO Ole Kirk's House is an exclusive 2009 set. Never released for retail sales, the 910-piece set was given to attendees of the 2009 LEGO Inside Tour. It is a custom model of LEGO founder Ole Kirk Kristiansen's house, produced in only 32 hand-numbered copies. This set should not be confused with the similar set 4000007.

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $11,417

• Average Annual Growth Rate: 34.3%

Used Set:

• Price Range: $9,296 - $10,547 (depending on the condition)

#4 106 UNICEF Van

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The LEGO 106 UNICEF Van was a 54-piece Town set featuring one minifigure. Released in 1985, it had a limited production run of just 100 sets. 

This promotional set was created in partnership with UNICEF (the United Nations Children’s Fund) and was available through the LEGO Club in Canada. The set includes a blue UNICEF truck and a minifigure representing a UNICEF worker.

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $11,093

Used Set:

• Price Range: $605–$1,050 (depending on condition)

• Average Price: $814 (good overall condition)

#5 Han Solo Indiana Jones Transformation Chamber

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Another promotional set on this list, the LEGO Han Solo Indiana Jones Transformation Chamber was released in 2008 and given to guests at the New York Toy Fair during the collector’s party. 

The 56-piece set was limited to just 100 sets, the set features a rotating platform that creates an illusion of Han Solo transforming into Indiana Jones, celebrating these two iconic characters. 

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $9,808

• Average Annual Growth Rate: ~8%

Used Set:

• Price Range: $7,986–$9,061 (depending on condition)

#6 Mr. Gold

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The LEGO Mr. Gold minifigure is part of the Series 10 collectible minifigures collection. Released in 2013, it consists of 8 pieces and carries the set number 71001-19. Only 5,000 Mr. Gold figures were ever produced, making it one of the rarest LEGO collectibles.

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $9,399

Secondary Market Prices:

• New/Sealed: $7,626–$10,062

• Used: $3,069–$3,936 (depending on condition)

#7 375-2 Castle

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The oldest set on our today’s list, the LEGO 375-2 Castle, also known as the "Yellow Castle," was a 767-piece set with 14 minifigures, released in 1978. What makes it particularly iconic is that the set was only available in Europe, the UK, Australia, and Canada. Also, as the first-ever LEGO Castle, it holds a special place in LEGO history.

Current Value & Market Trends

New and Sealed Set:

• Estimated Value: $8,750

• Average Annual Growth Rate: ~11.6%

Used Set:

• Price Range: $250–$335 (depending on condition)

 

#8 4000031 Exclusive T-Rex

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The LEGO 4000031 Exclusive T-Rex is a 70- highly limited-edition promotional set that was given away as a prize at various stores, with only 500 sets produced worldwide. 

\Of these, 100 were distributed in Belgium, while stores like Smyths Toys in the UK and Ireland received just 10 sets in total. Most of the sets were limited to Europe, with contests being the primary method of distribution. This resulted in an iconic and heavily sought-after LEGO set that holds great value. 

Current Value and Market Trends

New and Sealed Set:

• Estimated Value: $8,739

• Average Annual Growth Rate: ~5% 

Used Set:

• Price Range: $7,071–$8,022 (depending on condition)

• Average Price: $7,253 (good overall condition)

#9 10123 Cloud City

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The LEGO 10123 Cloud City is a 698-piece Star Wars exclusive set released in 2003. Based on Star Wars: Episode V – The Empire Strikes Back, the set features the iconic Cloud City platform along with seven minifigures: Darth Vader, Luke Skywalker, a Stormtrooper, Boba Fett (Markings), Han Solo, Han (Carbonite), Princess Leia, and Lando Calrissian.

Current Value and Market Trends

New and Sealed Set:

• Estimated Value: $8,340

• Average Annual Growth Rate: ~10.5%

Secondary Market Prices:

• New/Sealed (MISB/NISB): $7,000–$9,654

• Used Set:

• Price Range: $3,500–$4,937 (depending on condition)

• Average Price: $4,114 (good overall condition)

#10 Star Wars Miniland Figures

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The LEGO Star Wars Miniland Figures box set was a highly exclusive promotional item, with only 125 sets produced. It was given to select guests invited by LEGO to the 2011 LEGO Collectors Party at the International Toy Fair in New York. The set celebrates the opening of the LEGOLAND Star Wars Miniland area and includes:

• Han Solo and Chewbacca figures (glued)

• A 140-piece Boba Fett figure (provided in a zip-lock bag with instructions).

Once assembled, the box includes a designated space for the completed Boba Fett figure, making it a unique collector's piece.

Current Value and Market Trends

New and Sealed Set:

• Estimated Value: $8,324

• Average Annual Growth Rate: ~39.3%

Used Set:

• Price Range: $6,527–$7,405 (depending on condition)

Invest in Exclusive LEGO Sets with Splint Invest

With returns often outpacing traditional investments, LEGO sets offer a unique opportunity for diversification. Whether you’re a collector or an investor, the sets we’ve talked about today show the incredible potential of investing in LEGO.

Ready to start building your LEGO investment portfolio? Explore Splint Invest and own shares in rare and exclusive LEGO sets today!