How to Build an Underground Pool House in Minecraft
Construct a sleek, modern subterranean pool and luxury bunker in your sandbox world, featuring recessed LED lighting, smooth quartz framing, and seamless water flow.
This guide shows how to build an underground pool house in minecraft in 2 - 3 hours. Start with excavate the subterranean perimeter; follow the safety notes and step checkpoints below.
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- Read the tools, materials, safety notes, and steps below for free.
- Tap See 20-second demo if you want to understand it first.
- Tap Start Camera Coach when you want hands-free help, or Voice-only if you do not want to use the camera.
- Allow camera and microphone. Point your phone at the work; the coach watches your progress and tells you the next step.
🧰 Required Tools & Equipment
- ✓ Precision Gaming Mouse / Controller
- ✓ In-Game Diamond or Netherite Pickaxe
- ✓ In-Game Shovel
- ✓ Multiple In-Game Water Buckets
📦 Materials & Supplies
- ✓ White Concrete Blocks
- ✓ Smooth Quartz Blocks and Slabs
- ✓ Sea Lanterns or Froglights
- ✓ Cyan Stained Glass Panes
- ✓ Dark Oak Planks
- ✓ Water Source Blocks
⚠️ Safety Checkpoints & Warnings
- • Create a backup copy of your game save file before excavating large volume areas.
- • Maintain in-game illumination above light level 7 during digging to prevent hostile mob spawns.
- • Take scheduled 5-minute ergonomic wrist and eye breaks for every hour of block-placing.
📋 Step-by-Step Guide (5 Steps)
Excavate the Subterranean Perimeter
Mark out a 20x30 block rectangular perimeter on the surface before digging downward 10 blocks deep. Clear out all interior stone, dirt, and gravel to create a clean underground cavern chamber. Use night vision potions or temporary torches along the perimeter to maintain visibility while digging.
- • A completely hollow 20x30x10 rectangular cavity with flat ground and square edges.
- • Digging into uncharted natural caves or gravel pockets without blocking them off first.
Frame the Modern Shell and Foundation
Replace the rough stone walls and ceiling with White Concrete blocks for a minimalist, modern aesthetic. Lay a sub-floor using Dark Oak Planks for the living quarters half and Smooth Quartz for the pool zone. Ensure the transitions between wood and stone are aligned evenly along grid axes.
- • Smooth, bright white concrete walls enclosing the entire perimeter without exposed natural stone.
- • Mixing textured diorite or unrefined quartz with smooth concrete, ruining the minimalist finish.
Construct the Multi-Level Pool Basin
Dig out a 12x14 area within the quartz flooring, stepping down 3 blocks deep for a deep-end lounge and 1 block for a shallow deck. Line the basin floor with Sea Lanterns, then cover them directly with Cyan Stained Glass to simulate glowing aquatic floor tiles. Frame the pool perimeter with Smooth Quartz Slabs to create a raised spill-over lip.
- • A tiered basin glowing with cyan light through flush glass floor blocks.
- • Placing light sources irregularly, causing patchy dark spots across the pool basin floor.
Fill and Level the Water Dynamics
Place temporary dirt scaffolding one block below the pool lip and place water source blocks across every single square. Break the scaffolding from underneath so the water flows downward uniformly without creating unwanted vortexes or swirling currents. Verify the surface is perfectly still and flat across the entire pool surface.
- • A mirror-flat water surface with zero diagonal current animations.
- • Pouring water only at the corners, creating downward whirlpools that drag the player down.
Build the Underground Living Pod and Glass Partitions
Separate the pool deck from the subterranean bedroom and lounge using floor-to-ceiling Cyan Stained Glass Panes. Furnish the living area with modern recessed shelving, potted plants, a sunken bed frame, and hidden glowstone under carpets for mood lighting. Add an entrance staircase or water elevator linking the underground sanctuary to the surface.
- • A fully furnished, cozy modern interior visible through seamless glass overlooking the pool.
- • Overcrowding the interior with bulky storage chests instead of concealed wall storage.
Credit: inspired by an original tutorial by Underground House — watch the original on YouTube.
Don’t have everything?
- No Sea Lanterns? Glowstone or Shroomlights
- No White Concrete? Smooth Quartz or White Wool
- No Cyan Stained Glass? Light Blue Stained Glass or regular Clear Glass