Buildings

Buy a building's banner pattern from the Architect, build it, and hang the banner outside. The town checks the building and, if it passes, it's yours.

The building validation types:

House - Walls, and a roof. Doors aren't necessary, but are acceptable along with fence gates. Indoor buildings need a roof between 2 and 30 blocks above the floor.
Pens - Fenced or walled in areas. Animal pens must not have a roof.
Hybrid - House with a fenced yard. Build a partly covered pen and it still counts.
Area - a 9x9 area around the ground under the banner. For like Guard Posts that give a villager a place to go.

The Rules:

Storage room. Each town gets one storage room. Its banner comes from the Town Hall, not the Architect.
Mind the Town Hall banner. If it's broken, the town is removed and all work halts.
Banners can be placed in multiple ways. Place on the ground outside, or hang it on the wall...hang it up to 8 blocks high and the mod will find the ground and the building behind it.

Town

Town Hall

Founds the town. Home of the Architect, Tradesman and Foreman.

Storage

Where the town keeps everything it makes. One per town.

Home (2 beds)

A small house.

Home (4 beds)

A medium house.

Home (8 beds)

A big house or a boarding house.

Merchant Stall

Where the Merchant trades when he's in town.

Work

Mineshaft

The miners' way down. You can have 2 mineshafts per banner.

Smithy

The blacksmith's forge. Needs an anvil.

Kitchen

Where the cook works.

Butcher Shop

Where the butcher works.

Guard Post

A post for the town guard.

Barracks

Quarters for the town guard.

Pens

Cow Pen

Cows for milk, beef and leather.

Pig Pen

Pigs for pork.

Sheep Pen

Sheep for wool and mutton.

Chicken Coop

Chickens for eggs, feathers and chicken.

Rabbit Pen

Rabbits for rabbit meat, hide and the odd lucky foot.

Town life

Bell

Free location to increase happiness and intelligence when a teacher is in town.

School

Where the teacher gives lessons to the children.

Library

Where villagers read in the evening.

Tavern

Evenings out and the bard's show.

Bell

The town's meeting spot. Villagers gather here in the evening, and the teacher tells stories.

On the way

Dock planned

For the fisherman.

Archer's Nest planned

For the archer.

Fletcher planned

For the fletcher.

Brewery planned

For the brewer.

Apiary planned

For the bee keeper.

Garden planned

For the gardener.

Workshop planned

For the craftsman.

The Pit planned

For the pit master.