Building castles can be one of the most fun activities to do with LEGO. It lets you create a meaningful structure while at the same time leaving room for creativity and fantasy to happen.
In this post, we have collected the 25 coolest LEGO castle plans. These are plans from both existing sets and MOCS. MOC is an acronym for (My Own Creation), so these are sets that LEGO fans have built themselves and then they are sharing the plans so other people can build them too.
LEGO Original Sets
First, let’s start with the LEGO original sets. From all the castle plans available, we have picked the 16 sets that we thought were the coolest.
We are starting strong with the Hogwarts Castle. This is, in our opinion, one of the coolest castles available and it will look amazing when finished.
This castle contains 6.020 pieces, so it will be a challenge to build it. When built, the castle measures over 22 inches (58cm) high, 27 inches (69cm) wide, and 16 inches (43cm) deep.
Another of our favorite castles in this list is the Disney Castle. This castle will probably attract a slightly different audience than the previous one, but it is, in any case, a very cool one to build.
The Disney Castle contains 4.080 pieces that will help bring a realistic touch to the structure. When built, this castle measures over 29” (74cm) high, 18.8” (48cm) wide, and 12” (31cm) deep.
Darth Vader’s Castle is the next set on the list. This castle will also attract a different audience than the previous two, with the Star Wars fans being really into it.
Darth Vader’s Castle contains 1060 pieces that will make it easy to build while still having the futuristic look typical of Star Wars. When built, this model measures over 16” (41cm) high, 11” (28cm) wide, and 9” (23cm) deep.
Elsa’s Ice Palace set will delight the Frozen fans. This castle is targeted at smaller children than the previous ones, with the recommended age starting at 6 years old.
The set contains 701 pieces, to make it easy to build for the younger audience. Elsa’s Ice Palace measures over 12-inch (31cm) high, 11-inch (30cm) wide, and 7-inch (19cm) deep.
10223-1: Kingdoms Joust
We switch gears now and we move onto sets that are not licensed but that are original LEGO creations. The first one is the Kingdoms Joust.
This castle contains 1575 pieces, making it easy to build but also with a fair amount of detail. The set measures over 20″ (51 cm) wide and 12″ (30 cm) tall when built.
The Outpost Attack is a very cool castle for children. With a target age of between 5-12, your little ones will love building this set.
This castle contains 194 pieces, making it easy enough to build for small children. The Outpost Attack measures over 28.2 x 26.2 x 6.4 cm (11.1 x 10.3 x 2.5 in).
6080-1: King’s Castle
The next one is the King’s Castle. There are several versions of this castle available. We are featuring this one because it is sort of a historical one. It was released back in 1984.
This castle contains 674 pieces. When released, it was aimed at children between 8 and 12 years old.
70404-1: King’s Castle
The next set is the second version of the King’s Castle that we have featured. This one was released in 2013.
This set contains 996 pieces and it is aimed at children between 7 and 12 years old. When built, this set measures over 58.2 x 37.8 x 8.7 cm (22.9 x 14.9 x 3.4 in).
7094-1: King’s Castle Siege
The next set is the King’s Castle Siege. This set was released in 2007 and it features a battle in the king’s castle.
The set contains 973 pieces and it is recommended for children between 7 and 12 years old. When built, the King’s castle siege measures 65.2 x 38.4 x 9.6 cm (25.7 x 15.1 x 3.8 in).
6085-1: Black Monarch’s Castle
The Black Monarch’s Castle is another vintage set. Released back in 1988, it is a really cool set to have.
The set contains 702 pieces and it is highly valued in the LEGO online community. When built, it measures 48 x 29 x 7.5 cm (18.9 x 11.4 x 2.9 in).
6086-1: Black Knight’s Castle
Another vintage set from the same era and theme. Released in 1992, it also goes around the topic of the Black Knights.
The Black Knight’s Castle contains 588 pieces. When built, this vintage castle measures over 48 x 28.5 x 10 cm (18.9 x 11.2 x 3.9 in).
6081-1: King’s Mountain Fortress
The King’s Mountain Fortress is another old LEGO castle. Released in 1990 this fortress has held strong in the hearts of LEGO fans for more than 30 years.
This set contains 435 pieces, which makes it easy to build. When built, this castle measures over 43 x 28.6 x 9.5 cm (16.9 x 11.3 x 3.7 in).
6090-1: Royal Knight’s Castle
The next set is the Royal Knight’s Castle. This set, released in 1995, even includes a ghost and skeletons within the minifigs.
The Royal Knight’s Castle contains 764 pieces. The set measures over 53 x 43 x 9 cm (20.9 x 16.9 x 3.5 in).
8877-1: Vladek’s Dark Fortress
The Vladek’s Dark Fortress is also one of the coolest LEGO Castle Plans. This set, released in 2005, is realistic while at the same time being easy enough to build for children.
This castle contains 967 pieces and it is aimed at children between 8 and 14 years old. The set measures over 65.2 x 38.4 x 11.4 cm (25.7 x 15.1 x 4.5 in).
6097-1: Night Lord’s Castle
The Night Lord’s Castle is one of our last cool LEGO castle plans. Released back in 1997, it features a dragon and several skeletons.
This castle contains 601 pieces, which will make it easy enough to build. The set is aimed at children between 5 and 12 years old. When built, the castle measures over 38 x 47.5 x 7.2 cm (15 x 18.7 x 2.8 in).
8823-1: Mistlands Tower
The Mistlands Tower is the last original LEGO castle plan on this list. Released in 2006, it is part of the Knight’s Kingdom series.
This castle contains 431 pieces, which will make it very easy to build. The recommended age for this set is between 7 and 14 years. The castle measures 48 x 38.4 x 7.2 cm (18.9 x 15.1 x 2.8 in) when it is built.
The next part of the list is about MOC designs. These are designs that are created by LEGO enthusiasts and they are called “My Own Creation (MOC)”.
Sometimes, these sets take as a base a set from LEGO and expand on it. Other times, they are completely new creations. We have found 9 that we really like. But you can always go to Rebrickable to check some by yourself.
MOC – The Modular Knight’s Castle
This castle was built by LEGO enthusiast klockizbroda. It is a simple yet engaging castle with modules that can be easily rearranged in order to create several shapes without having to completely dismount the castle and mount it again.
The castle consists of 6 main modules which, when rearranged, will create the different shapes mentioned above. These are the six modules:
- Hinged walls: These will help you shape the castle in any manner you want.
- Tower bases with windows and plenty of room inside.
- Half battlements for creating short towers.
- Middle tower segments for creating tall towers.
- Full battlements for crowning the tall towers.
- Main gate with a working drawbridge and portcullis.
In addition, you can also build a siege tower with a folding bridge that reaches the top of the walls and can be used to attack the castle. If you want to find the instructions to build this, follow this link and check the “Building Instructions” tab under the explanation of the MOC.
MOC – Löwenstein Castle & Official Expansion
This one is actually a combination of two MOCS in one. The first one is the Löwenstein Castle, a MOC that can be found here and that won a prize and became a manufactured set on its own. The same designer, Raziel_Regulus, has also done an expansion. The combination of both is even better than the first design, so that is why we feature them together.
The expansion finishes off the design and it adds the following spaces:
- A storage room, next to the kitchen
- An alcove with a private chapel for the lord’s family
- A half-timbered house with sleeping quarters for the castle’s common folk
- A vault with an armory
- An underground pond, expanding the castle’s secret wine cellar
- A watchtower
- Another crenelated wall
- A small jetty on a pond for fishing
- Two additional spruces
The instructions for the expansion are actually not free, but you can check it out here to see if you want to purchase them.
MOC – Castle Rebrick
The idea behind this castle was to reuse the sets that the creator had and as a tribute to the LEGO castle sets from the 80s and 90s. The creator, John_Legotti, had around 4000 pieces at his disposal from all his old sets but ended up using only 2986.
Most pieces used are quite common, with the exception of two raised baseplates. If you want more information about this MOC or to know which sets and pieces the creator used, you can check it by following this link.
MOC – The Castle Gray
This MOC castle was done by Bejkrools. This castle features the following main areas:
- Bascule bridge
- Hidden cave
- Water well
- Small stable
- Archery training place
- Dining room
- Library room
- Throne room
- Two living rooms
- Dungeon with prison
- Treasure chamber
The castle has four parts that can be hinged, which means that it is comfortable to access the interior even for adults.
If you want more information about this MOC or would like to purchase it, you can do so by following this link.
MOC – The orange castle
This MOC castle, designed by gabizon, is one of my favorite MOC castles because of how different it is from the others. The orange roofs give it a fresh look, very different from the typical medieval feeling that this type of construction usually has.
This MOC needs 1007 parts to be built. If you would like to purchase the instructions to build it, you can do so by following this link.
MOC – Winterfell Castle – Game of Thrones
Containing 1799 parts, we think this set could easily be an official LEGO design due to its high quality. If you want to have a closer look at it and purchase the instructions, be sure to click on this link.
MOC – Rock Castle
The Rock Castle, from Lucky-Ramses, is clearly inspired by Minas Tirith from the Lord of the Rings. This MOC is based on the original LEGO 8781: Castle of Morcia. The improvement and the fact that the designer managed to make it look so similar to Minas Tirith is a great achievement.
The instructions for this specific MOC are free to download by following this link. There, you will also be able to get a bit more information about this specific MOC.
MOC – Sleeping Beauty Castle
The Sleeping Beauty Castle is a bit different from the other creations we have listed here. This one is much smaller, with only 398 pieces, but it is in any case difficult to build. The creator, benbuildslego, recommends it only for children over 12 years old.
We really like the look of it and we think it is one of the coolest from the set. If you want more information about this MOC or you want to buy the instructions, you can do so by following this link.
We started with Hogwarts and we will end up with Hogwarts. This is, by far, the coolest castle plan of all. It is also, by far, the most complicated to build. If you thought that the Hogwarts Castle set was huge with 6,020 pieces, get ready for this. This epic extension has a total of 19,307 parts, and that is without including the original pieces. Yes, I have not made a mistake there. If you add them up, the final castle would have a total of 25,327 pieces.
But the results are as astonishing. This castle is huge, measuring over 130.6 cm (51.4 in) wide, 93.7 cm (36.9 in) long, and 62.8 cm (24.7 in) high. But also the instructions are huge. The set of instructions goes over 3,000 pages.
The design was done by Ryan Kroboth, and Playwell Bricks created the instructions and made them available. If you would like to see a bit more information about the coolest castle plan or maybe purchase the instructions, you can do so by clicking here.
And with this epic castle, we have arrived at the end of this post. If you are thinking about purchasing some of these, you might want to have a look at our posts “A Treasure Hunters Guide To Finding The Best Old LEGO Sets”, “Why is LEGO so expensive? (And alternatives to consider)” & “Should You Buy Used Or New Lego, Which Is Best?” for useful tips in the buying process.