Buildings

Customs House

The Danish Customs House is a unique economic building introduced in The Baltic Powers for Definitive Edition. It turns the shipment system into a continuing source of Danish income and gives access to Danish shipment-related technologies.

APPLIES TO Definitive Edition — The Baltic Powers (2026)
Customs House in Age of Empires III
Customs House
IN-GAME VALUES

Recorded values

Cost
150 Wood, 150 Coin
Builder
Explorer, Customs House Wagon
Function
Ships resource crates; Creates coin income each time another player receives a shipment; Receives Home City shipments; Researches unique technologies
Construction
60 sec · up to 1 builders · limit 1
Structure
1,200 hit points · 10 line of sight · 6x6 footprint

Function

The Customs House receives Home City shipments and grants resources in connection with shipments received by other players. Danish improvements can change shipment value, resource options and delays, so the return depends on match pace and the opponents’ shipment use.

Placement & timing

Build and protect the Customs House early enough to benefit from its recurring income. Use its shipment options to cover the resource currently limiting the plan, and invest in upgrades when the expected future shipments justify their cost.

Shipment menu and timing

The Customs House turns shipments into a recurring Danish economic decision. It can be built in the Exploration Age for 150 Wood and 150 Coin, takes 60 seconds, has 1,200 hit points and is limited to one. The Explorer or a Customs House Wagon can construct it, so choosing the site early determines whether its income will be protected. The building can send resource shipments and receive Home City shipments; it also generates Coin whenever another player receives a shipment. That tax income scales with the number of opponents and can be improved by cards and technologies. Its shipment menu includes mixed resources and single-resource crates, letting the player respond to a Food, Wood or Coin shortage instead of committing to one fixed output. Some shipments are repeatable while the one that adds a shipment to inventory is limited. Deliveries take time, so queue an option before the resource is urgently needed. The Customs House has a large 6-by-6 footprint and modest line of sight, making placement near safe production or behind a defensive line useful. Because it is unique, losing it removes an important part of the Danish plan. Compare the cost of its upgrades with the number of future shipments expected: a technology that improves every later shipment is more valuable in a long game than in a match likely to end before it pays back. The building belongs to the Danes in The Baltic Powers for Definitive Edition; do not apply its shipment-tax mechanic to other civilizations.

Planning around the shipment tax

The Customs House rewards a long view of the match. Its basic construction is possible at the start of the game, but only an Explorer or a Customs House Wagon can build it. Since there is a one-building limit, select a protected location before committing the builder to its 60-second construction time. The building has 1,200 hit points and a broad 6-by-6 footprint, and its 10 line of sight does not replace normal scouting. Its distinctive income is tied to other players’ Home City shipments, which means an opponent’s shipment activity can indirectly benefit the Danish economy. Cards and technologies can improve this tax and influence Home Cities or track shipment history, so evaluate those options against the shipment pace expected in the lobby. Resource shipments arrive after a delay and can be queued, making them planning tools rather than instant emergency crates. The menu includes food, wood, coin and mixed crates at different ages, while shipment inventory can itself be expanded at a substantial resource cost. Spend the shipment to address the resource bottleneck at that moment and avoid queueing a type that will arrive after the army has already needed it. If the Customs House is threatened, protect it with nearby defenses: replacing a lost unique economic building may not be possible. These mechanics belong to the Danish civilization in The Baltic Powers and should be considered alongside the Round Church and Home City system.

Danish shipments and recurring income

The Danish Customs House is a unique economic building introduced in The Baltic Powers for Definitive Edition. It receives Home City shipments and produces resources when other players receive shipments, tying its value to the pace of the match. It also researches Danish technologies that can modify shipment values, resource options or delays. The building costs 150 Wood and 150 Coin and is limited to one. A Customs House does not replace ordinary gathering, but it can create a steady return as shipments are used across the game.

Placement and timing of upgrades

An Explorer or Customs House Wagon can build the structure, with a 60-second construction time and up to one builder in the recorded profile. Its 1,200 hit points mean it should be placed in a protected location rather than exposed near the frontline. Build it early enough to benefit from future shipments, then compare the upgrade cost with how many shipments the match is likely to include. A technology that delays or changes a shipment may affect the tempo of the next card, so weigh its future income against immediate reinforcements. Protect the Customs House because destroying the unique building removes its recurring value and research access.