LEGO Valuation – A Guide to Checking the Value of Bricks and Sets

LEGO valuation is a topic of interest to both those planning to sell their bricks, collectors, and investors. The variety of sets, the condition of the components, completeness, and the presence of a box or instructions all influence the final value. Below, you’ll find a detailed guide on how to approach valuation, what to pay attention to, and how to maximize your profit when selling. Key Valuation Information

The value of LEGO bricks depends on several key factors:

• completeness of the set (all pieces, instructions, box)
• technical condition (cleanliness, no damage, wear)
• age and rarity (older, discontinued series, limited editions)
• popularity of the theme (Star Wars, Harry Potter, Marvel, Disney, Icons, Ideas, Technic, Jurassic World, Speed ​​Champions)
• presence of minifigures (some figures are worth more than the entire set)
• originality (original bricks, no substitutes)
• LEGO set valuations should be based on comparing prices of similar sets on the secondary market – price comparison sites like klockomat.pl, auction catalogs, collectors’ groups, and classifieds portals are helpful here.

How should you value old sets versus newer sets?

Old LEGO sets

Older models, especially from the 1980s and 1990s, can fetch very high prices, especially if they are complete and include the original packaging and instructions. In the case of classics (e.g., Castle, Pirates, Space, Alpha Team, Island, Time Cruisers) or first editions of Star Wars, Marvel, or Disney, the value can be many times higher than the original price. The valuation should take into account:

• the presence of the original box (even if damaged)
• the condition of the box (any dent, tear, or fading reduces the price, sometimes by as much as 20-50%)
• completeness – missing pieces or figures can reduce the value by as much as half
• the original instructions (the original is always worth more than a print or PDF)
• the rarity of the set (limited, promotional, discontinued editions)

Sets sold in their original packaging with instructions and all pieces can be worth two to three times more than the same models sold separately, without the box and instructions. The box itself for iconic sets (e.g., 10182 Café Corner) can fetch prices of 240-350 EUR.

• Rarities from the 1980s and 1990s (e.g., Pirates of Turtle Island or Castle Black Knights) complete with box can fetch prices of 120-710 EUR.
• Licensed sets (e.g., Indiana Jones or Lord of the Rings) are sought after, with prices ranging from 120 to 1120 EUR per set.
• A missing instruction sheet reduces the value by 15-25%, while a missing box reduces the value by 30-40%.

Newer LEGO Sets

For current or recently discontinued series (e.g., Speed ​​Champions, Super Mario, Friends, Creator, City, Ninjago, Minecraft, Icons, Ideas), valuations are based primarily on:

• current list and promotional prices (price comparison tool, klockomat.pl)
• set condition (new, sealed, opened, used)
• completeness (missing pieces, damage, missing instructions or box)
• presence of minifigures (unique characters from the Star Wars, Marvel, Disney, and Harry Potter series can be worth dozens or even hundreds of zlotys each)
• secondary market demand (some series depreciate quickly, while others, such as licensed ones, can increase in price after being discontinued)

New, sealed sets with perfect boxes are priced near retail price, or higher if they are already discontinued. Opening the packaging, even just to inspect the contents, can reduce the value by 10-20%. Cardboard damage (dents, tears, discoloration) reduces the price by another 10-30%.

Impact of damage, missing boxes, and missing pieces on value

Box Damage

The condition of the packaging is extremely important, especially for collectors and investors. Intact, factory-sealed boxes are the most valuable. Any dent, tear, abrasion, or tape marks can reduce the value by as much as 20-50% for older and rare sets. For new models, a damaged box represents a loss of 10-20%. For collectors, even minor damage can be grounds for negotiation. Boxes from iconic series (e.g., Star Wars, Icons, Modular Buildings) are sometimes sold separately for several hundred złoty.

No Box

Selling a set without its original packaging automatically reduces the value – in the case of collectible and discontinued sets, by as much as half. For new, popular series (e.g., Ninjago, Star Wars), the loss is usually 10-30%. The lack of a box is less important for blocks intended for play than for collections.

Missing Pieces

Completeness is key to a high valuation. Missing even a few small parts, especially unique ones (e.g., figures, printed tiles, special elements), can reduce the value by as much as 30-60%. The absence of instructions reduces the value by another 10-20%. In the case of very rare series, where additional pieces are difficult to obtain, each missing piece significantly reduces the attractiveness and price.

It’s worth remembering that there are websites that allow you to order individual pieces, but original completeness is always more valuable than “reproduced” completeness.

Average Price per Kilogram of Mixed Blocks

On the secondary market, bulk brick purchases, especially as a mix from different sets, are most often priced by weight. In 2025, the average price per kilogram of used, clean components (without instructions, box, or figures) ranged from 10 to 20 EUR per kilogram. The price depends on:

• the quantity and condition of special elements (technic, large panels, windows, wheels)
• the presence of minifigures (several figures in a mix can increase the price by up to 25-30 EUR/kg)
• cleanliness (dirty, yellowed, or with stickers or damage are cheaper)
• the season (prices rise before the holidays, but drop in summer and after the New Year)
• local demand (brick collectors in large cities offer higher prices)
• In the case of a mix with a large number of figures, Star Wars, Marvel, Disney, Harry Potter, or Jurassic World elements, the price can be as much as 30-50% higher than a standard mix.

Pricing LEGO Figures

Minifigures are a separate topic – they are often the most valuable element of a set. Unique figures from limited editions, Star Wars, Marvel, Disney, Harry Potter, Icons, or Ideas can cost from 20 to even 500 PLN each (the rarest, e.g., Chrome Darth Vader, Mr. Gold, Comic Con exclusives, Brickheadz). The value of figures depends on:

• completeness (all accessories, prints, no damage)
• condition (no scratches, fading, cracks)
• rarity (licensed series, limited editions, promotional figures)
• presence of original accessories (e.g., capes, swords, helmets)

If selling a mix of bricks, it’s worth considering valuing and selling the figures separately – brick collectors often pay for them separately, and their value can significantly exceed the value of the other pieces.

How to determine the value of a LEGO set or bricks?

The best way is to compare prices on several platforms:

• Brick price comparison sites, such as klockomat.pl, auction catalogs, and collectors’ groups
• Checking completed auctions on classifieds portals
• Consulting with experienced sellers or LEGO brick buyers

It’s worth remembering that online pricing often differs from the actual transaction price – brick buyers offer lower prices but ensure a quick and hassle-free sale, while selling directly to someone can fetch a higher price but requires time and commitment.

LEGO Valuation – Summary

LEGO valuation is a process that takes into account many factors: completeness, condition, presence of box, instructions, minifigures, age, and rarity. Complete sets, with original packaging and instructions, in very good condition, are valued the highest. Missing boxes, damage, or missing pieces always reduce the price—sometimes by as much as half. Bulk bricks are usually priced by weight, with the average price per kilogram of mixed bricks ranging from 10 to 20 EUR, although minifigures and special pieces can significantly increase this figure. It’s worth using price comparison sites, catalogs, and collector reviews to determine the true value of your sets and maximize your potential profit.