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If you have a great idea for a LEGO IDEA’s submission, don’t be shocked when you submit it that it gets rejected. There are a number of reasons why this may happen but don’t worry as we will cover the top 10 reasons why your LEGO IDEAS submission may get rejected so you can avoid any stress and disappointment. The last thing you want to happen is to work hard on your design, submit it and then start dreaming of reaching the 10k milestone only to find your hard work has gone to waste! Anyway, without further ado lets jump in.

Your LEGO IDEA’s content is not appropriate

Before you think of anything else you need to make sure that your LEGO IDEA project is appropriate for all ages, if your LEGO IDEA submission fits in to one of the below categories then its time to go back to the drawing board I am afraid.

  • Politics and political symbols, campaigns, or movements
  • Religious references including symbols, buildings, or people
  • Sex, nudity, drugs, or smoking
  • Alcohol in any present day situation
  • Swearing or profanity
  • Death, killing, blood, terrorism, horror, or torture
  • First-person shooter video games
  • Warfare or war vehicles in any modern or present-day situation, or national war memorials
  • Large or human-scale weapons or weapon replicas of any kind, including swords, knives, guns, sci-fi or fantasy blasters, etc.
  • Racism, bullying, or cruelty to real life animals

LEGO have provided a little video to help with this too:

Copyright or breach of intellectual property rights

You need to make sure that your LEGO IDEA’s submission is your own work without it being derived from something that could have IP complications.

On the LEGO IDEA’s website they say:

We have also changed our guidelines to no longer accept product ideas based on third party licenses, which are currently produced or announced as official LEGO sets such as Star Wars, DC or Marvel Super Heroes, Volkswagen and many more.

To get a full list of the licenses you will need to avoid you can view their policy which is kept up to date on a regular basis, their policy is available from here.

Your design is too big

As much as we all say WOW when we see a huge LEGO set or MOC this is not actually what LEGO are looking for, they ask to keep your LEGO IDEA’s submission below 3000 pieces.

If it is over 3000 its not a show stopped but its a good guideline to try to stick to, one of the main reasons is because if your submission won the contest they want the cost for producing the set and RRP to be affordable.

An example of a big MOC way over 3000 parts is the LEGO Sit-Complex available in LEGO Artisan’s shop.

The pictures of your LEGO IDEA’s submissions are not good enough

LEGO are not expecting you to be a professional photographer but they do expect you to take pictures that are good quality, clear and easily shows the features of your submission.

They ask that the main image for your submission shows at least 80% to 90% of your set. If you want to show specifics you can take pictures exactly for this (up to 15) but just be sure to get the main image perfect. After all that is the first impression that everyone is going to get so it’s in your interest to make it look amazing 😉

If your set has been designed digitally then taking pictures of it becomes a lot easier but still be careful and keep to the above rules.

You have included text in your main image

To save confusion, what this means is “no additional” text to be added to your main image, so if you have a brick that says “Camp Fun” then that’s fine but if you have added some nice looking word art to your picture which aims to try and sell a feature then that’s a no no I am afraid.

Use genuine and non modified LEGO bricks

This one may seem obvious but if you have designed your LEGO IDEA’s submission using physical bricks maybe you have gone down the hack route and tried to glue pieces together, use tape or cut/snipped a piece to get the right effect.

This will be a quick way to get your submission rejected in a blink of an eye, LEGO are not going to be interested in a set that’s impossible to produce on mass if your submission was a the winner.

Try to use more common and readily available pieces in your design, don’t skimp on the detail just because of this tip though. If you need to use a rarer piece then go for it but just try to keep it to a minimum.

Thinking of setting up your own CMF collection? Think again…

Mini-figures are only to be used within your design, they are there to show how your set could be used or played with.

You cannot under any circumstances design a bunch of mini-figures and put them in as a submission.

Keep your ideas unique

Have a look through the current LEGO IDEA’s entries before you get started, do a bit of research to see if there’s been any official LEGO sets that look mildly like what you want to create.

LEGO want you to make new, intuitive and creative designs not ones that are similar to what is or have already been released.

Never use the LEGO name or logo in your artwork

I always find this one a bit strange when you are uploading your submission to a website and contest that’s owned by LEGO themselves, they are incredibly touchy about the use of their name and logo and this does not stop at LEGO IDEA’s submissions.

If you feel one or more of your bricks needs a sticker to look great then that’s fine, perhaps have your own sticker designed and printed by a third party supplier. Failing that they have said that you can have the LEGO logo on a brick but you cannot modify it in any way.

Don’t get ahead of yourself

Concentrate on the design of your LEGO IDEA’s submission only, don’t try to be creative and design your own box or front page for your instructions booklet.

LEGO have this rule as they are concerned that by having this in your submission that some people may think the design is actually available to be purchased as a official LEGO set.


There are a lot of rules to follow when submitting a design to LEGO IDEA’s but in all honesty they aren’t that hard to follow. Really all they are after is for you to come up with a unique design that can be the next big LEGO IDEA’s set, if you want your LEGO IDEA’s submission to be the next Treehouse (21318), Medieval Blacksmith (21325) or Central Perk (21319) then you will be happy to play nicely and follow the rules LEGO have set.

If you would like to see the full list of guidelines from the LEGO website click here.

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