How much does Castle Houses cost in AoE3?

150 food, 100 coin, 30 seconds (AoE3: Definitive Edition 100.19.18309).

What does Castle Houses do in AoE3?

Frontier Fortification: population space +5; Fort: population space +10. The game says: "All defensive towers and forts provide population space."

Technology

Castle Houses

Castle Houses (tech ID DENatStuartCastleHouses) is a technology in AoE3: Definitive Edition 100.19.18309 costing 150 food, 100 coin, 30 s to research at the Trading Post. Effect: Frontier Fortification: population space +5; Fort: population space +10.

Quick answers (3)

How much does Castle Houses cost in AoE3?: 150 food, 100 coin, 30 seconds (AoE3: Definitive Edition 100.19.18309).
What does Castle Houses do in AoE3?: Frontier Fortification: population space +5; Fort: population space +10. The game says: "All defensive towers and forts provide population space."
What is the tech ID of Castle Houses?: DENatStuartCastleHouses.

All defensive towers and forts provide population space.

What it does

Frontier Fortification: population space +5
Fort: population space +10

Cost: 150100
Research time: 30 s
Game ID: DENatStuartCastleHouses

Researched at

Trading Post

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).