Index: binaries/data/mods/public/simulation/components/Foundation.js
===================================================================
--- binaries/data/mods/public/simulation/components/Foundation.js
+++ binaries/data/mods/public/simulation/components/Foundation.js
@@ -1,7 +1,13 @@
 function Foundation() {}
 
 Foundation.prototype.Schema =
-	"<empty/>";
+	"<optional>" +
+		"<element name='AutoBuild' a:help='Whether the entity should build itself.'>" +
+			"<element name='Rate' a:help='Maximum attack range (in metres)'>" +
+				"<ref name='nonNegativeDecimal'/>" +
+			"</element>"
+		"</element>" +
+	"<optional>";
 
 Foundation.prototype.Init = function()
 {
@@ -18,6 +24,9 @@
 	this.buildTimePenalty = 0.7; // Penalty for having multiple builders
 
 	this.previewEntity = INVALID_ENTITY;
+
+	if (this.template.AutoBuild)
+		this.StartTimer();
 };
 
 Foundation.prototype.InitialiseConstruction = function(owner, template)
@@ -124,7 +133,10 @@
 	if (this.builders.has(builderEnt))
 		return;
 
-	this.builders.set(builderEnt, Engine.QueryInterface(builderEnt, IID_Builder).GetRate());
+	let cmpBuilder = Engine.QueryInterface(builderEnt, IID_Builder);
+	let rate = cmpBuilder ? cmpBuilder.GetRate() : ApplyValueModificationsToEntity("Foundation/AutoBuild/Rate", +this.template.AutoBuild.Rate, this.entity);
+
+	this.builders.set(builderEnt, rate);
 	this.totalBuilderRate += this.builders.get(builderEnt);
 	this.SetBuildMultiplier();
 
@@ -421,5 +433,44 @@
 	return cmpHealth.GetMaxHitpoints() / cmpCost.GetBuildTime();
 };
 
+Foundation.prototype.StartTimer = function()
+{
+	if (this.timer)
+		return;
+
+	if (this.IsFinished())
+	{
+		this.CancelTimer();
+		return;
+	}
+
+	this.AddBuilder(this.entity);
+	let cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
+	this.timer = cmpTimer.SetInterval(this.entity, IID_Foundation, "AutoBuild", 0, 1000, undefined);
+};
+
+Foundation.prototype.CancelTimer = function()
+{
+	if (!this.timer)
+		return;
+
+	let cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
+	cmpTimer.CancelTimer(this.timer);
+	delete this.timer;
+};
+
+
+Foundation.prototype.AutoBuild = function()
+{
+	let cmpBuilder = Engine.QueryInterface(this.entity, IID_Builder);
+	if (!cmpBuilder)
+	{
+		this.CancelTimer();
+		return;
+	}
+
+	this.Build(this.entity, this.GetAutoBuildRate());
+};
+
 Engine.RegisterComponentType(IID_Foundation, "Foundation", Foundation);