LEGO sets can become addictive and you can find yourself wanting to build more and more sets and bigger and bigger ones. If you are after original LEGO sets, we recommend that you visit our post “These Are The Biggest LEGO Sets Ever Made” and you will find a new challenge to take on. Alternatively, if you are not after size but after difficulty, you can check our post “These Are The Most Difficult LEGO Technic Sets To Make”.

In this post, we are going to be unveiling the ultimate 35 LEGO MOC plans to build designed by other LEGO enthusiasts. MOC plans is a shortened version of My Own Creation. These can all be found in Rebrickable, the go-to option for these types of sets.

MOC – Moderately Sized ISD with Full Interior

Designer: raskolnikov

Inventory: 15310 parts

Theme: Star Wars

The first LEGO plans from the list come from this MOC created by raskolnikov. The Moderately Sized ISD with Full Interior is a huge undertaking only recommended for very experienced LEGO enthusiasts. The instructions, to give you an idea of the difficulty reach eight volumes, totaling 1291 pages.

So, be sure you are up to the challenge before starting this! When built, this set will weigh ~27 lbs (12.25 kgs) and measure ~37 inches (94 cm) long. The plans can be accessed following this link, but these are premium plans so you will have to pay for them.

MOC – Avtoros Shaman 8×8

Designer: Madoca1977

Inventory: 2576 parts

Theme: Technic

This MOC plan is one of the most liked MOCS in Rebrickable and, upon seeing the video that accompanies the description, we can see why! The Avtoros Shaman 8×8 looks really well done and it comes with a lot of features that you would not expect from a MOC.

The coolest part is that the plan for this MOC is free of charge, so you can check it out on Rebrickable following this link. If you are into this kind of set, it is worth giving it a try!

MOC – Plus-Size AT_AT

Designer: raskolnikov

Inventory: 2499 parts

Theme: Star Wars

Our next plan is also from raskolnikov. This is basically a bigger version of the AT_AT set. According to the designer: “The “Plus-Size AT-AT” has the same playability and basic structure of LEGO’s AT-AT sets, but with greater size, more detail, and a little more than 2x the parts.”

This design is based on the set number 75054, but it is bigger and has more detail. The plan for this MOC is free of charge and you can find it together with the full description if you follow this link.

MOC – McLaren P1 hypercar 1:8 – manual version only

Designer: brunojj1

Inventory: 3302 parts

Theme: Technic > Model

The next plan is a car, one of the most common types of MOCS available. It is probably the most liked car plan available and the comments call it a masterpiece.

When built, this set measures 73studs (58cm) length;30 studs (24cm) width; 18 studs (14,5 cm) height. It features openable doors, a bonnet, and a removable engine cover.

This is a premium LEGO plan so you will need to pay in order to access it. If you are into building cars with LEGO, be sure to check it out on Rebrickable by following this link.

MOC – 10214 Tower Bridge Alternative build

Designer: InyongBricks

Inventory: 3226 parts

Theme: Modular Buildings

Our next plan is the first building that appears on the list. In this case, the designer has used the Tower Bridge set number 10214 and has created a corner building with a cafe, a bakery, and a museum.

This MOC is very well done and the plan is easy to follow. All the comments speak highly of the process of building this MOC. It is not by luck that this plan is one of the best-rated plans on Rebrickable. This is a premium plan, so you will have to pay to purchase it. If you are interested, you can do so by clicking here.

MOC – Executor-class Star Dreadnought

Designer: onecase

Inventory: 7284 parts

Theme: Star Wars

The next plan is also a Star Wars theme. When built, this set measures over 132 cm x 49 cm x 20 cm. The instructions amount to a total of 940 pages. The only defect we could find to this MOC is that, according to the comments, the instructions had some mistakes and were sometimes difficult to follow. But the final result is so impressive, everyone agrees that purchasing this is worth it.

This is a premium plan so if you would like to build it you will need to purchase it. You can do so by following this link to Rebrickable.

MOC – Ford Mustang Hoonicorn V2

Designer: Loxlego

Inventory: 2975 parts

Theme: Technic > Model

Our next plan on the list is another car, in this case, a Ford Mustang Hoonicorn V2. This is an extraordinary option for LEGO car lovers and the amount of detail that goes into it is simply mind-blowing.

This plan is also a premium one, and it can be bought on Rebrickable by clicking on this link.

MOC – Wing Body Truck

Designer: Madoca1977

Inventory: 4128 parts

Theme: Technic

Another excellent plan from Madoca1977. This is the biggest MOC from this creator. It is a very complex model to build and it includes a lot of moving parts. To give you a glimpse, there are two motors for driving, one motor for steering, two motors for opening each side of the cargo bay, two motors for operating the tailgate, one motor for tilting the cabin and one motor for the lights.

The video that accompanies the description is the best way to see what this set can offer. The best news is that this plan can be accessed for free, which is quite unique for such a detailed and complicated creation. You can find it by clicking here.

MOC – RC Liebherr LTM11200

Designer: Jeroen Ottens

Inventory: 7706 parts

Theme: Technic

This plan is astonishing and the size of it blew us away. This is a version of the Liebherr LTM11200 crane. The model uses 8 motors to drive 18 separate functions. The model, when built, measures 1.3 meters long and a mind-boggling 2.5 meters high when the crane is extended. According to the author, all 18 functions can be operated remotely using the LEGO PF system. However, there are three functions that need manual support (extending the boom, raising the stabilizer arms, and rotating the superstructure).

The comments on this design are over the top because the designer has used some brilliant solutions to overcome the challenges. You can buy this plan on Rebrickable if you click in this link.

MOC – Hogwarts Castle (71043) Epic Extension

Designer: Playwell Bricks / Ryan Kroboth

Inventory: 19307 parts

Theme: Harry Potter

We have also featured this MOC on our post “The Coolest LEGO Castle Plans” and it is one of our favorite plans from the list. This epic extension has a total of 19,307 parts, and that is without including the original pieces. If you add them up, the final castle would have a total of 25,327 pieces. That makes this model the one with the most pieces.

But also the measurements are out of this world. This castle measures over 130.6 cm (51.4 in) wide, 93.7 cm (36.9 in) long, and 62.8 cm (24.7 in) high. As for the instructions? Well, if you want to build this plan, get ready to go through more than 3,000 pages of instructions. But the result is well worth it!

You can buy this plan on Rebrickable by clicking here. Be sure to arm yourself with patience and a lot of free time if you intend to take on this challenge.

MOC – The Empire over Jedha City

Designer: onecase

Inventory: 5098 parts

Theme: Star Wars > Star Wars Rogue One

The next set is also from onecase. This is one of the most impressive plans from the list, more than for the size, for the quality of the design, and its originality. When built, this model measures 50 cm x 32 cm x 33 cm. To build it, you will need to go through the 467 pages of instructions but the end result and the process will make them feel like a breeze.

This is a premium MOC plan, so you will have to pay in order to access it. Be sure to check it out in Rebrickable by following this link.

MOC – The Iron Giant

Designer: buildbetterbricks

Inventory: 818 parts

Theme: Other

This plan is quite simple compared to most of the other plans on the list, but we liked it so much that it made it into the list. When built, this figure measures 13 inches (33 cm) high and 17 inches (43 cm) wide (with the arms extended). Apart from a very good design that has captured the essence very well, what we liked the most about this plan is the 27 points of articulation, which allow the builder to put this figure into several postures.

The instructions are not very long, only 115 pages. You can buy them if you follow this link.

MOC – Sisyphus Automata (Motorized)

Designer: JKBrickworks

Inventory: 1236 parts

Theme: Sculptures

The next plan is also not the most complex in terms of building it or the number of pieces it has, but it has also a very nice and original design. This design features Greek mythology Sisyphus and his boulder and what we liked the most is how realistically the figure moves.

This plan is freely available, which makes it even more appealing. You can access it by clicking here. You will also be able to see the description and the video where you can see Sisyphus moving.

MOC – Tatra 813 Trial Truck

Designer: Madoca1977

Inventory: 2527 parts

Theme: Technic

Another excellent plan from Madoca1977, this truck will go over any bump without major problems. The video posted in the description of this set showcases it. With 8 wheels that move independently, it adapts easily and does not lose stability. It is also powerful enough to go up steep planes.

The best part of this plan? That it is freely available, so you can download it and check it before you commit to paying any money to secure the pieces. You can find it if you click on this link.

MOC – UCS Venator Republic Attack Cruiser

Designer: Aniomylone

Inventory: 5454 parts

Theme: Star Wars > Ultimate Collector Series

The next plan is another Star Wars creation, in this case from Aniomylone. This model, when built, measures 112 cm long x 56 cm wide x 32 cm high. This creation was released in 2009, which makes it one of the oldest creations on the list. According to the designer, Lepin (a company known for ripping off all LEGO sets) has even done a set that copies this design.

That alone should show how well done this set is. If you want to buy this plan, you can do so on Rebrickable by clicking here.

MOC – ISD Monarch

Designer: onecase

Inventory: 11353 parts

Theme: Star Wars

The Imperial Star Destroyer Monarch is the next plan on the list. This is one of the biggest models from the list, with over 11,000 pieces. This is a huge model, measuring 118 cm x 71 cm x 39 cm. The instructions amount to 1,500 pages.

Most comments from people building this highlight the quality of the model and its stability and the clarity of the instructions. Overall, this is a big undertaking but a very enjoyable experience. If you want to have a look at the pictures from the model or purchase it, you can do so by following this link.

MOC – Apollo Spacecraft

Designer: FreakCube

Inventory: 7349 parts

Theme: Space

The next plan is an Apollo Spacecraft, quite a change from the most typical MOCS such as cars or Star Wars vehicles. The model of the Apollo Spacecraft consists of the Command and Service Module and the Lunar Module. In addition to that, the model includes the Lunar Roving Vehicle, various equipment such as the ALSEP (Apollo Lunar Surface Experiments Package), recovery equipment for the splashdown of the Command Module and a display stand.

The complete set measures over 70 cm x 40 cm x 43 cm. If you want to purchase the plan, you can find it on Rebrickable by clicking on this link.

MOC – McLaren P1 hypercar 1:8 – RC version only

Designer: brunojj1

Inventory: 3199 parts

Theme: Technic > Model

Another car on the list of the ultimate LEGO plans to build, this McLaren P1 hypercar has some glowing comments on how easy it is to build and how well put together it is. When built, this LEGO car measures over 73 studs (58cm) long, 30 studs (24cm) wide, and 18 studs (14,5cm) high. It also features an openable bonnet and a removable engine cover.

This is a premium MOC and can be purchased following this link. It can currently be built in either white, orange, or black from original Lego parts only.

MOC – Minifig Scale AT-AT w/ Interior

Designer: jhaelego

Inventory: 6467 parts

Theme: Star Wars

This is a very special one. According to the designer, it took him one year to design it and build it, so you can see how much effort was involved in this creation. This minifig scale AT-AT walker stands at 2 feet (60 cm) tall, which gives you an idea of its scale. According to the designer, the model is strong enough to be lifted and moved.

It features, between other things, an articulated head area, removable panels to reveal the interior, and two floors with seating areas. Be sure to check the video in the description to get a better idea of the size and features of this model. You can find more information to purchase this plan by clicking here.

MOC – ISD Intimidator 77525

Designer: CharlesRAnderson

Inventory: 19579 parts

Theme: Star Wars

This plan is another beast. Almost 20,000 pieces and 15 months of work have gone to create the ISD Intimidator 77525. According to the designer, the aim of this creation was “ a set that was as proportionally accurate to the original filming prop of the Avenger from A New Hope as possible, but is also as affordable as possible while being at 60” or longer.”

The result is this huge set, measuring over 59.5 inches (190 studs, 151.1 cm) in length, 37 inches (117 studs, 94 cm) in width, and 24 inches  (75 studs, 61 cm) in height. According to the designer, more than 500 man-hours have been put into this design. It is certainly an impressive design, and you can check the pictures and buy the plans by following this link.

MOC – Airport Crash Tender

Designer: Lucioswitch81

Inventory: 7177 parts

Theme: Technic

The next plan is an airport crash tender and one of the biggest vehicles available. Its size is incredible, measuring 128 x 37 x 37 studs (100.8 x 21.6 x 29.6 cm) when built. It has also a lot of powered options. For example, it has 4XL motors for driving the vehicle around. It has also a powered extendable arm.

If you want to find out a bit more about this amazing creation, be sure to check this link. In there, you will find a very cool video where you can see this vehicle in action and all its features.

MOC – SANDCRAWLER WITH FULL INTERIOR

Designer: Polyprojects

Inventory: 13543 parts

Theme: Star Wars

Another plan from the Star Wars theme and also one of the biggest plans on the list. This set has a minifig size interior, with a front hatch that can be opened to access the interior. There are also two roof panels that are easily removable and from where you can also access the interior.

The size of this model when built is quite impressive. It measures  100 cm long, 40cm wide, and 50cm high.

If you want to know a bit more about this plan or purchase it to build it yourself, you can do so by following this link.

MOC – FIREFLY SERENITY

Designer: Polyprojects

Inventory: 3811 parts

Theme: Space

Another plan from Polyprojects, this Firefly Serenity has a smooth and premium design. The designer has added a lot of details and a state of the art center engine. It also includes two extractable shuttles and the lower front hatch can be opened.

The comments are all very positive about this MOC and, with only 3,811 pieces, it shouldn’t be a huge undertaking to build it all. If you want more information about this creation or if you want to buy the plan to build it, you can do so by following this link.

MOC – Central Perk Big Bang Theory modular

Designer: Berthil

Inventory: 4294 parts

Theme: Creator > Creator Expert

This plan was created this year but it is already one of the most popular sets on Rebrickable. According to the designer, more than 120 hours went into creating this set. This plan combines both Central Perk (21319) and Big Bang Theory (21302) sets into one big set while at the same time keeping all the original design elements of both sets.

One of the best things is that these instructions come free of charge. According to the designer, if you own both sets highlighted above, you already have about one-third of the bricks required to build this creation. If you would like to get a bit more information on what bricks you need or would like to download the instructions, you can do so by clicking here.

MOC – Crane Truck

Designer: Lucioswitch81

Inventory: 8230 parts

Theme: Technic

Our next plan is also from Lucioswitch81, being this the second big vehicle from him on the list. This one is not as big as the Airport Crash Tender, but it is in any case impressive. Measuring over 108 studs (86.4 cm) long, 31 studs (24.8 cm) wide, 49 studs(39.2 cm) high, it will be a challenge to build this beast.

It has a lot of powered functions, but the one that impressed us the most is how the crane unfolds. This is a state-of-art creation that you will enjoy during and after building it. If you want to purchase the plans or want to know a bit more about this plan, you can check it out here.

MOC – 10255 Assembly Square Alternative build

Designer: InyongBricks

Inventory: 3262 parts

Theme: Modular Buildings

Another modular building creation, another creation from InyongBricks, who specializes in these alternative buildings. In this case, the Assembly Square is transformed into a European Jazz Cafe. The ground level contains a coffee shop. The mid-level contains an additional seating area, plus a stage set. On the upper level, there are extra seats to watch the stage and some spotlights pointing towards that stage.

This is a very detailed and well-designed creation, which can be seen in all the positive comments that are left on the page. If you want to give this plan a try or you want more information about it, you can check it out by following this link.

MOC – Docking Bay 327

Designer: CyberLogic

Inventory: 9100 parts

Theme: Star Wars > Ultimate Collector Series

This is another Star Wars plan, but one we have not seen before. Instead of the battleships, this designer created a docking bay and an awesome one at that.  It is designed to fit either of the Millennium Falcon Lego UCS Sets. (10179 or 75192).

When fully built, this model measures more than 40 inches long, 30 inches wide, and 16 inches tall. One of the coolest parts is the lighting design that the creator has come up with. If you want a bit more information about this plan or would like to purchase it, you can do it by following this link.

MOC – Life-Size Custom Baby Groot

Designer: buildbetterbricks

Inventory: 595 parts

Theme: Super Heroes > Guardians of the Galaxy

Our next plan is a fairly simple one, but we love the design. This is a life-sized LEGO Baby Groot. What we liked the most about this set is that, by articulating the mouth and the eyebrows, the designer has given people the freedom to change the expression of the figure easily and very effectively. In addition to that, other parts such as elbows, knees, or hips are articulated, which makes this figure a great toy to play with.

If you would like to purchase it or learn a bit more about this plan, you can do so by following this link to Rebrickable.

MOC – UCS Zeta-class cargo shuttle

Designer: RenegadeClone

Inventory: 4450 parts

Theme: Star Wars > Ultimate Collector Series

Another Star Wars themed plan, you can see these sets are so pricey with such an enthusiastic following. This spaceship measures over 70 cm x 56 cm x 38 cm when completed. The instruction manual comes at a total of 768 pages.

If you would like to learn a bit more about this plan or purchase it, you can do so by clicking here.

MOC – Modular Cathedral

Designer: Das_Felixle

Inventory: 21759 parts

Theme: Modular Buildings

This is one of the most impressive plans from the list, both for the size and for the technical difficulty in building it. To give you an idea of the magnitude of this undertaking, it took the designer one and a half years to build it. It uses a lot of advanced techniques, such as stained glass windows or vertically placed bricks. The designer only recommends this set for experienced builders.

When built, this church measures 37 cm x 78 cm x 87 cm. The instructions are over 1,200 pages long. Overall, an extremely challenging set to build, but that can be very rewarding for experienced builders that love the modular building series and are looking for an epic cathedral to complete their city. Be sure to have a look at the photos and consider buying the plans by clicking on this link.

MOC – Botanical Garden

Designer: Berthil

Inventory: 2403 parts

Theme: Creator > Creator Expert

This plan from Berthil features an indoor Sakura tree, a fountain, numerous plants, and a flower shop plus a coffee corner. The roof with ventilators can be removed so the inside can be easily accessed.

This plan is freely available, so you can check it out and see if you want to give it a try. You can find it by following this link.

MOC – The War Rig

Designer: brickvault

Inventory: 3323 parts

Theme: Other

This designer has produced the War Rig, a battle vehicle from Mad Max. The model features turning wheels, opening and closing doors, detachable water and gas tankers, and much more.

This vehicle is quite big. It measures 31.5 inches (80 cm) long x 4.75 inches (13 cm) wide x 8.5 inches (22 cm) high. Even though it does not have any power functions such as others we have previously featured, it is a very well designed vehicle that we think deserves to be featured and that you will enjoy building. This is a premium plan, and you can check it out in more detail and purchase it if you follow this link.

MOC – Bismarck

Designer: rad0lf

Inventory: 7164 parts

Theme: Universe

There are many vehicles on this list and we could not end up without featuring this huge boat. The model measures 125 cm long, 18 cm wide, and about 31 cm high, making it one of the longest sets from the list. According to the author, this is a scale model 1:200 of the Bismarck, one battleship built for Nazi Germany’s Kriegsmarine.

If you would like more information about this set or you would like to build it, you can check it out by clicking here.

MOC – Liebherr LR 11000 Crawler Crane

Designer: OleJka

Inventory: 3645 parts

Theme: Technic

This is a very impressive creation, with the model towering over 2 meters when built. As a downside, it seems that the instructions are a bit complicated to follow and there are some unnecessary pieces listed and some pieces missing in the inventory.

It is, in any case, worth checking out, and a good challenge to try if this is the type of models you like to build. You can check it out here.

MOC – Custom ENDOR Landing platform + Trees for SW

Designer: CustomBricks.de

Inventory: 4856 parts

Theme: Star Wars

The last plan is also a landing platform from Star Wars and it also features some trees. The landing platform measures 115 cm long, 75 cm high, and 65 cm wide. The 5 trees measure between 45 and 70 cm.

The overall design is very impressive and we recommend that you go check the video where the designer features all the parts built. You can do so by following this link. In there, you will also be able to buy the plan if you want to do so.

Last words

And with this, we have arrived at the end of this post. If you are after free plans only, we recommend that you check our post “30 Of The Best LEGO Plans For Free”. If you are looking for official sets, you can check our post “These Are The Biggest LEGO Sets Ever Made”. Happy building!

Learn More

If you are interested, here is a link to the entire Lego section found on Amazon.