How to Build a Villager Trading Hall

Emeralds stop being a currency and become a cheat code the moment you have a working hall. Mending for one emerald, Protection IV on demand, an armourer selling diamond gear, a fletcher who buys every stick you will ever pick up. The build itself costs almost nothing — a corridor, some blocks, and a stack of workstations. The hard part is not ruining the villagers before their trades are locked, and that is where nearly every hall goes wrong.

Here is the whole thing: cell design, how to re-roll for the trade you want, how to lock it, how to halve the prices with a zombie cure, and why your villagers keep claiming each other's workstations.

The cell that makes everything else work

The hall is one unit repeated. Get the unit right and the rest is copy-paste.

Working outwards from the corridor, each cell is:

• Corridor — 2 blocks tall, 1 or 2 wide, fully lit and fully enclosed.
• Front wall — a solid block at foot level, open air at head level. That 1-block gap is your trading window.
• Cell floor — a single tile. This is where the villager stands.
• Back wall — the workstation itself, placed directly behind the villager at the same level.
• Side walls — one full solid block between every neighbouring cell. Not a fence, not a pane, not a slab. A full block.

The front wall is the trick. A villager needs a 2-block-tall opening at foot level to walk through anything, so a solid block at their feet holds them permanently even though the space above is wide open. Their head and shoulders stick into that gap, so you can right-click them from the corridor with no door, no trapdoor and no chance of them wandering off.

The workstation sits directly behind the villager because that is the one placement guaranteed to sit inside its own occupant's reach and outside everybody else's. Understand the reach before you build anything: a villager can claim a job site block sitting in any of the eight spaces around it at foot level, or in any of the nine spaces one level below that. Claiming is purely positional. Walls, glass, line of sight and physical access make no difference whatsoever — a villager will happily claim a lectern it can neither see nor touch, as long as the block is inside that volume.

That is also why the side walls matter. A full block between cells puts two villagers two blocks apart, which is exactly far enough that neither one reaches the other's workstation. Pack them any tighter and both villagers are in reach of both job blocks, and whichever gets there first takes it.

Build the cells in a row down both sides of the corridor and you can fit a dozen professions in a space the size of a small house.

Two blocks tall is deliberate — cap every cell so nothing can climb or be pushed out, and roof the whole structure. A lightning strike near an exposed villager turns it into a witch, and losing a Mending librarian to a thunderstorm is a genuinely painful way to learn that.

Getting villagers into the cells

Breed your stock somewhere else and move the surplus in. A dedicated villager breeder is far less painful than dragging strangers home one at a time.

• Move them by boat (over ice for speed) or by minecart on a short rail line into the corridor.
• Push the villager onto the cell tile, then place the foot-level front block in front of it, between the villager and the corridor, to seal the cell.
• Only adults with no profession are useful. A nitwit wears a green robe and will never take a job no matter how many workstations you offer it — don't waste a cell.
• Place the workstation after the villager is sealed in, never before.

That last point matters more than it sounds. An unsealed villager wandering a half-built corridor will grab the first workstation it can path to, and you will spend the next hour breaking blocks trying to work out who owns what.

Re-rolling until you get the trade you want

A villager's offers are decided the moment it takes a job. Give an unemployed adult a lectern and it becomes a librarian with a freshly generated set of novice trades. Don't like them? Take the job away and hand it back.

1. 1.Seal the unemployed villager in its cell with no workstation in reach.
2. 2.Place the workstation. The villager's clothing changes to match the profession.
3. 3.Open the trade screen and read the offer. Do not click the output slot.
4. 4.If it isn't what you want, break the workstation. Wait a moment for the villager to actually drop back to unemployed — its outfit reverts.
5. 5.Place the workstation again. New profession, new offer. Repeat.

Hold the workstation block in your hand and you can cycle this every couple of seconds. Librarians are the usual target because a novice book trade can roll any enchantment at any level, treasure enchantments like Mending included, and a lectern is cheap: one bookshelf and four wooden slabs. If you're deciding what to hunt for, the best enchantments list is worth reading before you burn an hour rolling for something mediocre.

Set your expectations before you start. A novice librarian has three possible trades — buying paper, selling a bookshelf, and selling an enchanted book — and each one is rolled in independently with roughly a two-in-three chance. So a fair share of your attempts will produce a librarian with no book on offer at all. Nothing is broken; break the lectern and go again.

Two more limits worth knowing. You are only ever re-rolling the tier-1 offers — the higher-tier trades are generated when the villager levels up through Apprentice, Journeyman, Expert and Master, and those cannot be re-rolled. And villagers only pick up a new job during their daytime schedule, so a villager asleep in a bed will not change profession at all. Either roll during the day or keep beds out of the hall entirely (they are needed for breeding, not for trading).

Locking a trade in

Complete one trade. That is the entire locking mechanic, and it is permanent.

The instant a villager's first transaction completes, its profession and its trade list are fixed for the rest of its life. Break the lectern afterwards, mine the wall out, let a creeper take the floor apart — the trades survive. Until that first trade, everything is provisional and one broken workstation wipes the offer you spent forty minutes rolling for.

So the discipline is: roll, roll, roll, and the moment the right offer appears, buy it once. Right there, before you do anything else. Don't go and fetch emeralds, don't go mining for the paper — bring the payment with you before you start rolling.

The corresponding failure is trading by accident. A misclick on a villager you were still rolling locks in whatever rubbish it is currently offering, and that villager is now a permanent monument to your impatience. If you're rolling several at once, keep the unlocked ones' cells physically separated from finished ones so you don't confuse them.

Zombie curing: the discount that pays for the build

A cured zombie villager gives the player who cured it a large, permanent price reduction on everything it sells. This is not a small effect — it routinely takes an enchanted book from dozens of emeralds down to one or two, and prices never drop below one emerald, which is the floor you're aiming at.

What you need:

• Splash Potion of Weakness — brew a fermented spider eye (spider eye, brown mushroom, sugar) into a water bottle, then add gunpowder to make it a splash potion. Full method in the potion brewing guide.
• Golden apple — eight gold ingots around one apple.
• Hard difficulty — a villager killed by a zombie turns into a zombie villager instead of simply dying 100% of the time on Hard, 50% on Normal, and never on Easy.

Throw the splash potion so it hits the zombie villager, feed it the golden apple, and wait. Conversion takes three to five minutes. Iron bars and beds inside the 9x9x9 area centred on the zombie villager cut that down, though only the first fourteen such blocks count for anything, so a small cage of bars around the curing spot is worth building once and reusing. It shakes, then stands up as a normal villager again.

The critical detail: a zombified villager keeps its profession and its locked trades. So the correct order is roll the trade, lock it with one purchase, then zombify and cure. You get the exact offer you wanted at the discounted price.

One cure is all you get, so make it count. Re-infecting a cured villager and curing it again used to stack the discount deeper, but that was a bug and it was fixed in 1.20.2 — the villager's reputation towards you is reset when it is cured, so the second cure and every one after it buys you nothing at all. Any guide still telling you to cure five times in a row is written for an old version.

Build a dedicated curing cell rather than doing this in the hall: villager in one 1x1 hole, a zombie sealed in the tile next to it so it can reach but nothing else can interfere. The full procedure, including what can go wrong mid-cure, is in how to cure a zombie villager.

Restocking, and why yours has stopped

A villager restocks its trades by working at its claimed job site, up to twice per game day. Three things have to be true:

• It has a claimed workstation inside its reach — in practice, directly behind it in its own cell.
• Nobody else has claimed that workstation.
• The chunk is loaded. A hall on the far side of the world restocks nothing while you're away.

Buy a trade out repeatedly in one session and the price climbs — that's the demand mechanic. It decays back down over the following days as the villager restocks, so alternate between two villagers selling the same thing if you're buying in bulk.

If a villager sits there with an empty trade and refuses to refill it, the workstation link is broken. Break the block and replace it; a villager that has already traded keeps its profession, so re-linking is safe and costs you nothing.

Why villagers link to the wrong workstation

This is the number one thing that ruins otherwise good halls, and it always comes down to reach. A trapped villager will claim any unclaimed job site block inside its reach volume, and it does not care whose cell you intended it for.

The offenders:

• Diagonals, and the row below. This is the one that catches everybody out. Diagonal contact absolutely does claim — a villager reaches all eight spaces around it at foot level, not just the four orthogonal ones — and it also reaches the entire 3x3 one level down. A job block tucked into a corridor wall, or set into the floor, can easily sit in reach of a cell you were never thinking about. Walk the hall and check that every job block is in reach of exactly one villager.
• Cells packed too tightly. Two villagers standing side by side with nothing between them are each in reach of both workstations, and whoever claims first wins. Keep one full block of separation between every pair of villagers, always.
• Slabs and stairs used as dividers. Claiming ignores walls entirely, so a slab is no worse than a full block for claim geometry — the problem is movement. A villager can step up onto a slab or stair and walk itself straight into the neighbouring cell. Full solid blocks only.
• Two workstations in reach of one villager. A villager claims exactly one job site, so a spare job block left in the cell "for later" is either stolen by a neighbour or grabbed the instant you break the first one, which silently ruins your re-roll.
• Workstations placed before the villagers are sealed in. A free-roaming villager will path to and claim something in the wrong cell.

Fix it by breaking the wrongly claimed workstation, waiting for the thief to go unemployed, then moving the job block or widening the spacing so it sits in reach of its own cell only, and placing it back. Adding a wall will not help — walls do not block claiming. If the thief had already traded, it keeps its profession and you will need to move it out entirely, which is why you seal first and place workstations second.

For a refresher on which block produces which profession, and what each one sells at each tier, see villager jobs and workstations and the wider villager trading guide.

The short version

1. 1.Build the corridor and the cells: solid block at foot level, open head-height window, one full block between every pair of villagers.
2. 2.Seal an unemployed adult into each cell.
3. 3.Place one workstation directly behind each villager, and check no other villager is within reach of it.
4. 4.Roll: break and replace the workstation until the tier-1 offers are the ones you want.
5. 5.Lock it by completing that trade once, immediately.
6. 6.Zombify and cure once on Hard for the discount, keeping the locked trades. A second cure adds nothing.
7. 7.Light and roof the whole build so nothing spawns inside and no lightning gets in.

Do it in that order and every mistake you can make is recoverable. Do it out of order and you will spend an afternoon rolling for Mending, misclick a paper trade, and start again.