server/res/e3a/buildings.xml

<?xml version="1.0"?>
<eressea>
<buildings>

  <building name="watch" maxsize="10" fort="yes" taxes="200">
    <construction skill="building" minskill="1" maxsize="5" name="scaffolding">
      <requirement type="log" quantity="1"/>
    </construction>
    <construction skill="building" minskill="2" maxsize="5" name="guardhouse">
      <requirement type="log" quantity="1"/>
    </construction>
    <construction skill="building" minskill="2" name="guardtower">
      <requirement type="log" quantity="1"/>
    </construction>
  </building>

  <building name="market" maxsize="10">
    <maintenance type="money" amount="200"/>
    <construction skill="building" minskill="3">
      <requirement type="log" quantity="1"/>
      <requirement type="stone" quantity="1"/>
    </construction>
  </building>

</buildings>
</eressea>