Castles & Fortress from History — LEGO Block Build Plans Generator
Built by Lego Fan Plans — Real-Build Mode with BOM hints, Buildability Score, and a Brick Price Calculator.
Real-Build Mode: This generator focuses on designs you can actually assemble. You’ll get structural tips, an estimated parts breakdown (BOM buckets), and a Buildability Score so you can gauge effort vs. stability.
Tip: Some menus allow multiple selections. On desktop use Ctrl/Cmd-click; on mobile, tap to add and tap again to remove.
Concept Level
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Basic
Intermediate
Advanced
Crazy Wild
Era / Century
Early Medieval (5th–10th)
High Medieval (11th–13th)
Late Medieval (14th–15th)
Renaissance (16th)
Early Modern (17th–18th)
Region / Culture
England & Wales
Scotland & Ireland
France & Burgundy
Holy Roman Empire
Iberia (Castile/Aragon/Portugal)
Italian States
Byzantine
Ottoman
Crusader States / Levant
Japan (Shiro)
China (Walled City)
Fortification Type
Motte-and-Bailey
Stone Keep (Square)
Shell Keep
Concentric Castle
Star Fort / Bastion
Hilltop Citadel
Sea Fortress
Border Tower-House
City Gate & Walls
Scale / Module Size
Micro (plates & 1x1s)
Mini (tabletop display)
Minifig Play-Scale
UCS Display-Scale
Base Footprint
32×32 Baseplate
48×48 Baseplate
64×64 (2× 32×32)
96×64 (3× 32×32)
Custom Irregular
Wall Techniques (multi)
Masonry bricks + SNOT texture
Brick-built buttresses
Offset tiles for stone courses
Cheese slopes for chipping
Round column w/ clips (Machicolations)
Arches & inverted slopes (Arrow slits)
Rockwork blend at base
Tower Shapes (multi)
Square corner towers
Round corner towers
D-shaped flanking towers
Octagonal great tower
Gatehouse barbican
Keep / Donjon
Gate & Entry
Single gatehouse w/ portcullis
Double gatehouse + barbican
Drawbridge over moat
Clifftop sally-port
Sea gate & chain boom
Defensive Features (multi)
Moat / wet ditch
Dry ditch & counterscarp
Concentric inner curtain
Crenellations & merlons (1-stud)
Hoardings / brattices
Murder holes
Machicolations
Terrain Layers
Flat meadow
Rocky hill / escarpment
River bend / ford
Coastal cliff
Forest edge
Island / tidal
Materials Palette
Light bley + dark bley w/ tan accent
Dark tan + nougat (aged sandstone)
White + light bley (Byzantine)
Reddish brown timber + bley stone
Black/DBG (volcanic basalt look)
Color Accent / Heraldry
Blue & gold
Red & white
Green & black
Black & yellow
Purple & silver
Minifigures & Roles (multi)
Lord/Lady & Retinue
Garrison (archers, crossbowmen)
Engineers & masons
Merchants & townsfolk
Monks / scribes
Invaders / besiegers
Vehicles / Animals (multi)
Horses & carts
Battering ram
Siege tower
Catapult / trebuchet
Longboat / galley
Prop Packs (multi)
Banners & pennants
Torch sconces & braziers
Crates, barrels, sacks
Market stalls
Blacksmith forge
Armory racks
Diorama Pack
Off
On (Simple)
On (Advanced)
Scene Type
Peace time daily life
Parade / tourney
Under siege
Storm at sea
Night watch
Base Strategy
Framed rectangle
Beveled edges
Organic / irregular
Tiered cliff shelves
Framing & Edge Finish (multi)
Tile ribbon frame
Cheese-slope bevel
Plate-stack rough edge
Brick-built plaque & title tile