Dwelling Float Charts

The format here is kind of silly due to the limitation of HTML. If you can't understand it you can download a text file which have a nice little ASCII art of the float chart.
You might want to red the following chart from the bottom to the top and from right to left. the sign '<--' reads 'reqires' Anything that's not on the chart for that kind of castle then you can build it after you upgrade from town to castle. Some of the dwellings are already built when you get it, good for you.

Knight Castle
Jousting Arena & Cathedral <-- Armory & blacksmith
Blacksmith <-- Well
Armory <-- Tavern
Archery Range, Well, Tavern <-- Thatched Hut
Thatched Hut <-- Castle

Barbarian Castle
Pyramid <-- Bridge
Bridge <-- Adobe
Adobe, Den & Stick Hut <-- Hut
Hut <-- Castle

Sorceress Castle
Red Tower <-- Fenced Meadow
Fenced Meadow <-- Stonehenge
Stonehenge <-- Mage Guild
Mage Guild <-- Archery Range
Cottage <-- Tavern
Archery Range & Tavern <-- Treehouse
Treehouse <-- Castle

Warlock Castle
Black Tower <-- Maze & Swamp
Swamp <-- Nest
Maze <-- Crypt
Nest & Crypt <-- Cave
Cave <-- Castle

Dwelling cost

Terms
G -- gold
O -- Orc
W -- Wood
C -- crystal
S -- Sulfur
Gem -- Gem
M -- Mercury

Cost for converting tent to castle -- 20 w, 20 o, 5000 g

Common dwellings that can be built in all casltes
Mage Guild
Level 1 -- 5 w, 5 o, 2000 g
level 2 -- 5 w, 5 o, 4 c, 4 s, 4 gem, 4 m, 1000 g
level 3 -- 5 w, 5 o, 6 c, 6 s, 6 gem, 6 m, 1000 g
level 4 -- 5 w, 5 o, 10 c, 10 s, 10 gem, 10 m, 1000 g

Thieves' Guild -- 5 w, 750 g

Tavern -- 5 w, 500 g

Shipyard -- 20 w, 2000 g

Well -- 500 g

Knight Castle dwellings
Thatched Hut (peasant) -- 200 g
Archery Range(Archer) -- 1000 g
Blacksmith (Pikemen) -- 5 o, 1000 g
Armory (Swordsman) -- 10 w, 10 o, 2000 g
Jousting Arena (Cavalry) -- 20 w, 4000 g
Cathedral (Paladin) -- 20 o, 20 c, 5000 g

Barbarian Castle
Hut (goblin) -- 300 g
Stick Hut (Orc) -- 5 w, 800 g
Den (wolf) -- 1000 g
Adobe (Ogre) -- 10 w, 10 o, 2000 g
Bridge (troll) -- 20 o, 3000 g
Pyramid (cyclops) -- 20 o, 20 c, 6000 g

Sorceress Castle
Treehouse (sprite) -- 5 w, 500 g
Cottage (Dwarf) -- 5 w, 1000 g
Archery Range (elf) -- 1500 g
Stonehenge (druid) -- 10 m, 10 o, 2500 g
Fenced Meadow (unicorn) -- 10 w, 10 gem, 3000 g
Red Tower (phoenix) -- 20 m, 30 o, 10000 g

Warlock Castle
Cave (centaur) -- 500 g
Crypt (gargoyle) -- 10 o, 1000 g
Nest (griffin) -- 2000 g
Maze (minotaur) -- 10 gem, 3000 g
Swamp (hydra) -- 10 s, 4000 g
Black Tower (dragon) -- 30 o, 20 s, 15000 g