Building a house
A house is not just any build. The mod validates the structure before accepting it, and an NPC only moves into an approved one.
The requirements
Structure
The space must be enclosed: walls and a roof with no gap for the check to leak through. Doors count as closed wall.
The interior is capped at 512 blocks. Past that the check gives up and rejects the house — the cap exists so an open cave is not mistaken for a mansion.
Mandatory furniture
| Requirement | Any block whose id contains |
|---|---|
| Light source | torch, lantern, candle, campfire, glow, lamp, chandelier |
| Seating | chair, stool, bench, seat, sofa, couch |
| Surface | table, workbench, desk, counter |
Optional, but you will want it
| Item | Why |
|---|---|
| Bed | Without one, nobody lives there. The house is identified by its bed. |
| Chest | Without one, residents have nowhere to get food. |
Checking
Point a House Blueprint at a registered bed.
The tool will tell you whether the structure passed and, when it did not, what is missing. It also reports how many interior blocks were visited, and how many doors and chests were found.
If part of the house sits in an unloaded chunk, the check flags the result as incomplete rather than rejecting it. Stand near the house when checking.
The house is identified by its bed
This is the most important detail and the easiest to trip over: the house's identity comes from the bed.
What that means in practice:
- Two beds in the same room can become two houses.
- Breaking the resident's bed releases the house.
- Moving the bed can read as a different house.
It is a known limitation, and turning it into an identifier of its own is on the roadmap.
Doors
A door occupies four blocks, and two doors side by side form a double door. NPCs open and close them as they pass.
Next
Beds and residents — how an NPC claims a bed and what happens when two of them want the same one.