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Build Ideas · Structures · Java & Bedrock

How to Build a Lighthouse

A round, tapering striped tower on the coast, topped with a glass lantern room and a glowing beacon.

What you need

Red for the stripes
White for the stripes
Glass for the lantern room
A sea lantern or beacon

Round, striped, and lit up top

Build a round tower that tapers as it rises, band it in red and white, and cap it with a glass lantern room and a gallery rail. Put a sea lantern or a beacon at the top and set the whole thing on a rocky coast.

Quick answers

How do you build a lighthouse in Minecraft?
Build a tall round tower that tapers slightly as it rises, paint it in classic red and white bands, and cap it with a glass lantern room holding a bright light. Add a gallery walkway around the top and set it on a rocky coastal base.
How do you make the tower round and tapered?
Use a circle footprint, around seven to nine blocks across at the base, and step it in by one block every several layers so it narrows toward the top. A consistent circle each layer keeps the taper smooth.
How do you light the lantern room?
Put a sea lantern, glowstone, or a full beacon at the very top inside a glass-walled room so the light shines out in every direction. A beacon even sends a beam straight up, which reads perfectly as a lighthouse.
What is the classic lighthouse colour scheme?
Red and white horizontal bands are the iconic look, but white with a black top, or stone with a glass crown, also work. Wrap a darker gallery rail and roof around the lantern room to finish it.
Where should you build a lighthouse?
On a cliff, a rocky outcrop, a pier or a small island at the edge of an ocean or lake, ideally where it marks a harbour or your base from the water. Height and a clear sightline are what make it useful and striking.
Does the build work the same on Bedrock?
Yes. The circle tower, banding, lantern room and beacon all behave the same on Java and Bedrock, so the same lighthouse design builds identically on both.
What do you need for a working beacon at the top?
A beacon needs a pyramid base of iron, gold, emerald, diamond or netherite blocks directly under it. One layer of 9 blocks (3x3) gives a short beam, and four layers (164 blocks total) give the tallest beam and the most effects. The beacon also needs clear sky above it, so do not roof over the lantern room with solid blocks.
How tall should a Minecraft lighthouse be?
20 to 35 blocks reads well from the water without dwarfing nearby builds. The beacon beam always renders from the beacon block to the top of the sky no matter the tower height, so build for looks. The beam itself is visible from up to 256 blocks away on Java and 64 on Bedrock. Build height limit is Y 320 on 1.21, so there is plenty of room.
How do you make the spiral stripes line up on a round tower?
Build one full circle layer at a time and only change colour on whole layers, not mid-row. A common stripe is 4 to 6 layers per band. Plan the layer count before you start so the top band ends clean instead of a half stripe under the lantern room.
Do sea lanterns and glowstone need anything to glow?
No. Sea lanterns and glowstone emit light level 15 on their own with no redstone or power. Sea lanterns are crafted from 4 prismarine shards and 5 prismarine crystals, both dropped by guardians and elder guardians in ocean monuments.

Build tips and common mistakes

Database →
Concrete & lights
Look up concrete colours, sea lanterns and the beacon for the top.
Guide →
Build a circle
Get the round tower right with a clean pixel-circle footprint.